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Microsoft has issued security recommendations to reduce the vulnerability of the NXNSA attack on DNS servers, which can be used to enhance a single DNS query in a DDoS attack against authoritative DNS servers.

In a recent paper, researchers at Tel Aviv University and the Interdisciplinary Center discovered a new vulnerability called NXNSAattack that can be used to launch a devastating attack on both recursive converters and authoritative servers. A knockout post Outsource hosting support.

That’s why NXNSAattack works by sending a DNS query for a domain under the control of an attacker to a recursive server. Since this recursive server does not have permission to resolve the request, it sends a request to an authoritative DNS server for the attacker’s domain.

The authorization server is also under the attacker’s control and responds with a list of servers to be requested by the original UPS. However, this list of servers will be the target of the DNS DDoS attack that now needs to be queried.

If many requests are made in this way, the attacker can quickly escalate the attack on the DDoS of the authoritative DNS server and make it immune to the attack.

This attack is illustrated by the image Nic.cz created in his blog about the NXNSA attack.

NXNSAattack flow rate NXNSAattack flow rate (source: Nic.cz)

According to the researchers, this attack has a gain of more than 1620x on the number of packets exchanged by the recursive resolver, which can damage their targets.

To address this vulnerability, DNS server developers have begun providing recommendations and patches for their software.  Below is a list of the currently known recommendations.

More information about NXNSAttack can be found on the NXNSAttack.com website, created by researchers, and we recommend that you read the post on the NXNSAttack.com blog.

Mitigation of the NXNSA attack on Windows DNS servers

Yesterday, Microsoft published the advice ADV200009 | Windows DNS Server Denial of Service Vulnerability with NXNSAattack DNS Attack Mitigation.

An attacker who successfully exploits this vulnerability can cause the DNS server service to stop responding to requests.

To exploit this vulnerability, an attacker must have access to at least one client and a domain that responds with a large number of reference folders, without glue points to the victim’s external subdomains. When resolving an attacking client’s name, the resolver contacts the victim’s domain for each reference file found. This action could result in a large number of connections between the victim’s recursive resolver and the victim’s authoritative DNS server to trigger a Distributed Denial of Service (DDoS) attack, according to ADV200009, a Microsoft security consultant.

To limit this attack, Microsoft recommends administrators use the PowerShell Set-DnserverResponseRateLimiting command to limit the response time.

Response speed limitation is a configuration option used by DNS servers to prevent them from being used in DNS-enhanced DDoS attacks.

When enabled, this setting limits the number of responses or errors the DNS server sends to a DNS client per second.

To check the current settings for response limitation, you can run the Get-DnserverResponseRateLimiting PowerShell command.

Get-DnserverResponseRateLimiting command Get-DnserverResponseRateLimiting command

As you can see in the default settings above, a Windows DNS server only responds to the client five times in one second.

If you want to increase or decrease this amount, you can do so using the Set-DnserverResponseRateLimiting PowerShell cmdlet.

For example, to reduce the number of responses to two per second, run the following command:

Set-DnsServerResponseRateLimiting – Persian reaction limitation 2

Set-DnserverResponseRateLimiting command Set-DnserverResponseRateLimiting command

A similar command can be used to reduce the number of errors to two per second:

Set-DnsServerResponseRateLimitation -ErrorsPerSec 2

Note that using the response time limitation feature prevents the Windows DNS server from being used in case of DNS attacks on another client. However, this does not protect the server itself from the risk of being compromised.

Unfortunately, Microsoft did not provide recommended values to limit this attack.

BleepingComputer asked Microsoft for additional information, but received no response.

Error in Windows 10

Windows 10 users encounter many errors when installing the latest cumulative update KB4556799, and those who can install it report many more problems.

Microsoft announced it on the 12th. May has released a cumulative update for Windows 10 KB4556799. Since then, users have reported many problems installing the update, getting BSOD, sound problems and problems with the games.

With a wide variety of hardware and drivers in Windows 10, update installation issues, hardware crashes, performance issues, and terrible blue screen problems are often reported.

With the release of this version the number of messages has increased considerably because BleepingComputer receives more messages than usual about people with problems.

At the same time I installed this update on several computers, and I *tock on a tree* have no problems.

What users report

After the release of the new cumulative update for Windows 10 there is still some discussion about problems, but with this update the noise is much louder.

We have described below a number of problems that occur after installing an update.

Update cannot be installed KB4556799

When Windows 10 KB4556799 was released, the largest number of notifications was due to users not being able to install the update.

When you try to do this, Windows Update starts downloading the update and eventually displays an error code such as 024000b, 0070026, 00f0988, 0073701 and many others.

Small feedback centre report on KB4556799 Small feedback centre report on KB4556799

Unfortunately, many victims have reported that the sfc /scannow command or the Windows Update diagnostic tool did not solve the problem.

Audio recordings

Recent WindowsLatest reports indicate that some users may not be able to hear the sound on their computer after installing the KB4556799 update.

If you lost audio after the update, some people [1, 2] may have solved this problem by disabling the Enable Audio Improvements option in the Windows speaker properties.

To try it out, right-click the volume icon in the system tray and select Open Sound Settings as shown below.

Open sound settings Open sound settings

Click the Device Properties button in the Output section of the Sound Settings screen. Then scroll down and click on the option properties.

The Speaker Properties dialog box opens and you must click on the Advanced tab.

On the Advanced tab, select and clear the Enable Sound Improvements checkbox as shown below

Speaker characteristics Speaker characteristics

Now check your sound and see if it works again.

Some Blue Screen of Death (BSOD) Fault messages

Some users contacted BleepingComputer after the installation of update KB4556799 or wrote [1, 2, 3] about BSOD errors elsewhere.

In our study these reports do not occur very often and in order not to distract the people who receive them from the problem, the DSOB seems to be an isolated problem.

For users who receive BSOD after installing update KB4556799, a driver conflict can cause an error.

In order to solve this kind of problems, I advise users to follow these steps:

  1. Delete update KB4556799. You can learn more about removing updates.
  2. After uninstalling the update, update the image, sound, Intel drivers and storage devices if possible. For people with Intel graphics, you can try out their graphics drivers, which can now be universally installed on OEM devices.
  3. Reinstall the driver.

We hope that updating the drivers will solve this problem.

Application, Gaming and Performance issues

Finally, some users report problems [1, 2, 3, 4] when starting applications, games, or slow startup.

Like FSODs, these types of problems can be driver-related, and users can try to follow the steps mentioned in the previous section to see if it helps.

If this still does not work, you can postpone the installation of the update and hope that the May 2020 release will solve these problems next week.windows 10 updates won't install,windows 10 won't update to 1909,windows 10 won t update 2019,windows 7 won t update,forced updates on windows 10,windows 10 november 2019 update problems,windows 10 force update,windows 10 updating without permission

There will always be questions that others will have to explain to us as if we were five years old. Quantum physics. Super PAC. Flux capacitor. For most board members and part-time employees, cyber security is such a problem. This poses a challenge for NGOs and intellectual property rights: Their role requires effective communication with these actors, but they rarely speak the technical language of cyber security.

It is not necessary to explain the importance of obtaining this right. Einstein_explanation_Cyber_risk (1) The lullaby in which the board of directors and key colleagues discuss VCA and encryption algorithms reduces your chances of participating in projects that are critical to your organization’s security. Visit 24×7 Outsource Support. In addition, not clearly demonstrating the impact of your team’s efforts on the company will have a negative impact on the perception you and your team have of them.

But how can NGOs express their opinion clearly and convincingly on a subject that is not tangible and largely incomprehensible to their board of directors? Here are the five keys to this problem.

1. Alignment with business objectives

When you present something to the board of directors, every point you make must relate to what concerns the members of the board of directors in depth: Risk. Start with an overview of the main business risks you are monitoring. Then list the projects you are doing in each area to reduce the risk.

Be sure to explain the impact of the violation on the Company and the likelihood of a violation in any area. This allows you to focus your conversation on the events and projects that lead to the most important risk reduction.

2. Using visualization

If you are trying to attract the attention of your senior colleagues and board members during a presentation, you may not be using sufficient visual aids. There are many ways to visually explain cybernetic risks, but the potentially most powerful forms are heat maps, which can change over time.

One of the visual reporting tools for our customers is the solar temperature map, which shows the risk level per asset group with red, orange, yellow and green indicators. You can examine each asset group in detail and get more contextual information about the risk factors in each area.

Protection against risks

Visual images can also be used to show your progress. Balbix has specialized graphs that show the level of risk over time, but simple bar or line graphs can also be used to show the number of risk elements captured over time.

3. Quantity

To fix your glasses, you have to leave a shelf with a little concrete. The best way to achieve this is through action. After all, numbers tell a story.

Tools such as Balbix automate risk quantification for 100 attack vectors and device types. Some measurements of device, application and user vulnerabilities are included in risk assessments for broader categories such as intellectual property, customer or office data. The overall assessment of business risk includes all these indicators. If you do not currently have a tool with these features, please let us know your best reviews using a table similar to the one below.

Risk calculation table

For example, you can report that your intellectual property is at risk level 15 (catastrophic impact and probable infringement) and your customer data at risk level 4 (high impact but low probability). Reducing the intellectual property risk is one of your top priorities. Suddenly, your request for additional funding to protect an organisation’s intellectual property makes much more sense to the board.

4. Show trends

A reliable tool or system to quantify your security situation will also help your board to better understand your team’s performance. Where are we with our intellectual property security? The Council might wonder. In fact, we were able to halve our risk from 20 to 10 by capturing 76 business-critical assets to which you can respond. I estimate this has reduced our cyber risk by almost 30%. It’s even better if it’s quantified financially. I estimate that this reduced the expected losses from the offense by more than $1.5 million.

Keep up to date with your cyber risk ranking

A proactive approach to cyber security is of the utmost importance for presentations at the level of impressive organisations. Balbix provides real-time insight into the complete inventory of assets, with constant monitoring of the most critical vulnerabilities affecting them. With a list of priority risks and exportable heat cards, we’re here to help you get a good look at your next cyber-fiction meeting with your colleagues in the workplace and the board of directors.board and cybersecurity,cyber security pptx,cybersecurity board slides,cybersecurity overview presentation,cyber security services ppt,cyber security basics ppt,board of directors presentation,cyber security in india ppt

Verizon today released its annual Data Security Breach Investigation Report, based on actual data from 41,686
and 2,013 data security incidents from 73 public and private data sources (
) in 86 countries around the world.

The report provides the most useful overview of the current state of the fight against cybercrime, highlighting not only the weaknesses in organisations’ approaches to security, but also the areas on which cybercriminals appear to be focusing.

The IT security experts helped us understand the key statistics in the report and gave our interpretation of the findings and advice to companies looking to strengthen their security position.

Martin Jartelius, CSO at Outpost24 :

It is interesting to note that 45% of breakthroughs are due to hacking, while 22% are the result of an attack by a user or employee. Secondly, attackers need on average less than 4 successive phases in 90% of attacks, but most need more than one phase.

This clearly shows that deep protection is more important than ever.

Research has shown that most organizations are successful in tackling system vulnerabilities to the Internet, but for those who are not, it is a breeding ground for attacks.

Half of the organisations have less than 1% of the systems running on the internet vulnerabilities, 90% of the organisations have less than 10% of the hosts that expose their computers to known vulnerabilities.

43% of all registered violations related to web-based applications. But if you look at hacking, the numbers only get really interesting when you see that 90% of hacking is aimed at web applications.

Most violations start with hacking, then with social engineering, the last step often being the implementation of malware. As more and more functions and data are transferred to web applications, the number of attacks increases. This is currently an important element in addressing organizational vulnerabilities and managing vulnerability and application risks.

Jamie Akhtar, CEO and co-founder of CyberSmart :

The fact that 28 percent of cybercrime victims are small businesses is not surprising – a trend we have been observing for some time. It’s a real mistake to believe that any business is too small to be the target. As we can see all the time, there simply aren’t many attacks of this magnitude that work. But small organizations, especially those with little government IT experience, often don’t know where to start when it comes to protecting themselves from threats. That is why programs such as the NIST Cyber Security Framework (CSF) and the Cyber Essentials (British cyber devices) are so useful; they provide proven cyber security standards that any organization (or individual) can follow to defend against the vast majority of these types of attacks.

Eoan Kiri, founder and CEO of Edgescan :

Contributing to Verizon DBiR helps us as the industry moves the dial in a positive direction. What we can’t see, we can’t improve.

The idea that the big players and the good guys in the industry contribute together gives a realistic picture of what is important today in the field of cyber security. I am very proud and grateful to the boys of VDBiR for all their hard work.

Chad Anderson, Senior Security Researcher at DomainTools :

The report goes on to say that aggressors should not be sneaky in order to be effective. We note that only 45% of all offences mentioned in this report related to a traditional burglary and that only 4% of the total offences resulted in more than four attacks by the aggressors. Simple, easy fruits for financial gain continue to dominate this area and show where much of our safety attitude can be improved through user training and basic standards for safety practices in the industry.

Phishing and Trojan horses have declined and software purchases have increased, while ransomware-as-a-service (RaaS) groups such as REvil are on the rise. Much has been invested in the early detection of phishing domains using machine learning algorithms, and endpoint detection is constantly being improved. This makes sense because most of the offences described in this report focus on the activities of financially motivated organised crime groups. RaaS pays off, especially in the era of COVID, when attackers target hospitals and large companies that may not have the time to properly set up and rebuild their infrastructure after compromising important data and components.

Errors – mainly poor source configuration – continue to increase as more and more files remain open. Also this year we have seen massive cases of elastic searches and MongoDB databases left open and exposed, thrown away and sold in cybercrime forums. The availability of the cloud infrastructure and the complexity of its security will continue to force people to leave their data on wide open S3 buckets so they can be thrown away anywhere in the world.

Richard Bailich, Chief Security Strategist at Corelight:

The DBIR offers security experts a lot of information to assimilate. One way to use them is to understand how your industry is presented, investigate the types of players and events that affect your industry and ensure that your organization’s risk model and countermeasures mitigate the problems identified by DBIR.

Tim Erlin, Vice President of Product Management and Strategy at Tripwire :

We often see ransom as a violation, but DBIR classifies most ransom actions as incidents because, although you have lost access to the data, the attacker did not actually steal it. This may be a consolation, but it does not mean that a ransom incident is much less important for the security personnel dealing with it.

The fact that the wrong configuration is one of the top five violations is an important finding, namely that not all incidents are the result of an exploited vulnerability. Incorrect configuration actually leads to more violations than using the system, but companies often make less effort to assess them than to look for vulnerabilities.

At a high level, the most important things to fear for any organization are brute force and identity theft and web applications.

It is tempting to minimize vulnerability management based on this data, but the details show that organizations that do this fairly well are generally safer and those that are not very, very vulnerable. An important lesson, however, is that the organization can do both. The old adage cannot protect what we do not know, which is the case when it comes to weaknesses. Asset management is a prerequisite for managing vulnerabilities.

If you want to protect yourself against the most common violations, protect your web servers, workstations and email infrastructure.

Cloud assets still represent a minority of targets – 24% versus 70% at local level. Why change tactics when they’re working? The cloud has a learning curve for both criminals and businesses.

One of the important lessons of DBIR is that a trade-off often consists of multiple attacks, so as a defender you have different ways to stop an attacker. The concept of deep protection applies here. The conclusions presented on how multi-stage trade-offs are made are crucial. Malware is rarely the first step. So if you detect malware in your area, you should look for what was there before. The hacker is much more difficult to treat because he plays a role in the early, intermediate and final stages of the injury.

DBIR’s industry analysis is invaluable. If you can identify the most relevant resources, measures and models for your sector, you can act much more decisively as an advocate. For example, the manufacturing industry should pay more attention to criminal programs introduced by malware and social engineering than any other industry. If you work in healthcare, errors in your threat model are much more visible than in other sectors.

Activating the GPL after a break is a good addition for defenders. The CIS has a good reputation in the sector and the control measures provide sufficient information to be effective but not overloaded.

Tim Mackey, Senior Security Strategist at Synopsys CyRC (Center for Cyber Security Research) :

In all cyber attacks, the attacker sets the rules, and often opportunism is the best game with any number. The DBIR 2020 report confirms that most successful breakthroughs were accompanied by opportunistic tactics, ranging from social engineering and attacks on trust to opportunistic hacking and exploitation of misunderstandings. This means that the number of breaches could be significantly reduced if basic principles such as S3 bin security, password protection of databases, a patch management strategy and adequate malware protection were in place.

If we go beyond the basics and move to an attack strategy such as exploiting vulnerabilities, we will really focus on the process and exploit its weaknesses. In the case of a vulnerability, success depends directly on both the patch management strategy and the degree of agreement between the software asset management list and what is being deployed at that time. An exploit takes effect if there is software that is not part of the goods manifest, which means that there are probably no patches. While these manifestos and processes are simple in describing systems managed by corporate IT teams, the weakest and most timely link in the chain of remote employees or the employee’s mobile device may be the one linking the company’s IT processes to consumer practices. That’s why zero-trust network architectures are attractive and the remediation should include open source management – attackers look for blind spots because these blind spots allow them to invest in more sophisticated attacks.

Pratik Bhaianka, Vice President of Production Management at Qualys :

2020 Verizon DBIR shows how an effective remediation program – as part of a complete lifecycle of vulnerability management – can significantly reduce the risk to the organization. The examples of assets with Exim and Eternal Blue vulnerabilities indicate that these assets have often been completely absent for years and have very old vulnerabilities that show us that these assets were not in the organization’s records and are therefore ignored. This reinforces the fact that security is as strong as your vulnerability and that vulnerability management should start with asset management because these neglected systems can be access points for an attacker even if the system itself does not contain important data.

To have an effective security program, the solution must be based on a solid foundation of full, real-time visibility throughout your entire hybrid computing environment, continuous detection and fast response by installing patches to close the exposure window.

Satnam Narang, Research Engineer, Tenabl:

The results of the Data Violation Investigation Report (DBIR) 2020 show that while attack vectors can change over time, cybercriminals often target low-value fruit. Zero days can attract attention, but the fundamental problems of e-hygiene allow most violations. The motivation of cyber criminals is mainly financial. As the Cyber Security and Infrastructure Security Agency (CISA) recently indicated in its report on the ten most frequently exploited vulnerabilities, cybercriminals focus on exploiting undiscovered vulnerabilities. This is a cost-effective measure that offers the most benefits because they do not have to spend the necessary capital to acquire zero-day vulnerabilities when so many systems have to be inactive. As the DBIR notes, even if a recently discovered vulnerability in the network has not been resolved, the same systems are likely to be vulnerable to many other vulnerabilities, which means that there is no elementary cyber-hygiene.

Compared to last year, the number of ransom software increased by 2.6% and, according to DBIR, it ranked third for the most common form of malware and second for the most common incidents. In the meantime, the ransom software is no longer exclusively intended for encrypting files. Cybercriminals have reached a new level of attack by downloading sensitive information from organizations whose files they have encrypted. These cybercriminals threaten to divulge this confidential information, often publicly distributing teaser files from organizations that have compromised this information. It is believed that labelling and shaming these victims will encourage them to pay the ransom, and in many cases this has been proven.

Another remarkable result: 43% of the infringements related to web applications. This is often encouraged by the use of some of the most common vulnerabilities, such as SQL injection or PHP injection errors. As more and more companies move to the cloud, their area of attack is increasing, especially for web applications. The DBIR found that web applications and mail application servers were involved in 73% of cloud breaches, while most of these were due to a breach of access rights.

This tutorial shows you 3 possibilities to connect to your Linux server under Windows via SSH.

What is the United States?

SSH stands for Secure Shell, invented in 1995 to replace the insecure Telnet (telecommunications network). It is now the primary way for system administrators to securely connect to remote Linux servers over the public Internet. Although it looks and behaves exactly like Telnet, all SSH connections are encrypted to prevent the interception of packets.

If you are working on a computer running Linux or Mac, the SSH client is installed by default. You can open a terminal window and run the ssh command as shown below to connect to a remote Linux server.

Shh.

Now let’s see how the social sciences and humanities can be used in Windows.

Method 1: Integrated SSH client Windows 10

The Microsoft PowerShell team has decided to port OpenSSH (both client and server) to Windows in 2015. It finally arrived in 2017 in the case of the Windows 10 creator update and is activated by default in April 2018.

To use the OpenSSH client in Windows 10, simply open the PowerShell window or the command line window and run ssh.  For example, if I wanted to connect to my Ubuntu desktop on my local network, I would

Shh.

linuxbabe is the username of my Ubuntu desktop and 192.168.0.101 is the private IP address of my Ubuntu desktop. The first time you connect to a Linux computer, you will be asked to accept the host key. Then enter the password to log in. After logging in, you can execute Linux commands to perform administrative tasks.

Note: To insert a password into the PowerShell window, right-click and press Enter.

Skylight

To exit the Linux box, execute the output command or press Ctrl+D.

The default font size in PowerShell Window is very small. To change them, right-click on the title bar and select Properties, then you can change the font size and background color.

Powerhell windows change font and background size

Method 2: Use of SSH in the Windows subsystem for Linux

The Windows for Linux (WSL) subsystem allows you to run native Linux command line tools directly in Windows 10. If you are a system administrator, WSL is probably a redundancy for easy use of SSH because it installs and runs the Linux distribution (without the GUI) on your Windows 10 desktop. WSL is intended for web developers or those who need to work on open source projects. You can use not only SSH, but also other Linux command line tools (Bash, sed, awk, etc.).

Open the Microsoft Store and enter WSL in the search field. Select Start Linux on Windows and install the Linux distribution of your choice.

Linux wsl-Windows subsystem

For example, I select Ubuntu and press the Get button to install it.

Windows ubuntu subsystem for Linux

After installing the Linux distribution, open the Control Panel and select Programs -> Enable or disable Windows functions. Check the Windows Subsystem for Linux option to enable this feature. (You may need to restart your Windows computer to make this change effective).

Then you can start the Linux distribution from the Start menu by searching for the distribution name. At first startup you need to create a user and set a password.

Skylights 10

You can then use the ssh command to connect to a Linux server or a PC running the SSH server, as shown below.

Shh.

Method 3: Use pen

Putty is the most well-known and popular SSH client on Windows, before the OpenSSH client and the Windows subsystem for Linux. To use SSH with Putty, you need to download and install the Putty program from the official web site.

Perform the filling via the start menu. Then enter the IP address or host name in the Linux field and click Open to establish the connection.

ssh window command line

Accept the host key and you will be prompted to enter a username and password.

command line ssh window 10

Note that the cursor does not move when you enter a password, but actually accepts your password.  To paste text into Putty, first press Ctrl+C to copy the text, then go to the Putty window and right-click.

Packaging

I hope this article has helped you to use SSH on Windows. As always, if you find this message useful, subscribe to our free newsletter for more tips and tricks. Take care of yourself.

Evaluate this training manual.

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Ishaani Sirkar, Product Marketing Manager, CipherCloud

Lifting of uncontrolled devices

Most organizations expect an increase in the number of remote employees and SaaS applications in the coming years. The remote work environment has led to the rapid implementation of data exchange and collaboration applications, BYOD devices in unprotected networks. This has led to the emergence of new risks, exacerbated by a lack of visibility in the mobile SaaS environment. The math is simple, lack of visibility exposes companies to increased risk and unavoidable data loss. An organization’s ability to detect and fix data leaks in an external environment, and to prevent data loss, begins with the return of this new standard to the record.

Traditional security alert and incident investigation tools are not designed for a mobile SaaS environment. In addition, warnings usually consist of unclear data in raw log files that even experienced security analysts cannot fully understand. The investigation of the incident itself includes writing scenarios, manually comparing different log files, interpreting meaning, manually deleting secondary data sources for clues, and spending a lot of time determining the cause of the incident. In order to gain a deeper insight, the correlation between incidents must be supported by advanced machine learning. This blog explores 4 options for using AEBA to investigate and respond to incidents that can save organizations before the incident becomes a complete violation.

Foresight research

CipherCloud’s Insights Investigate feature provides a variety of incident management tools that allow administrators to view incidents of policy violations, assign a severity grade to the incident and determine the appropriate action. In addition, administrators can view information about incidents and their sources from different angles and obtain additional information about each incident or source.

User and organisational behaviour analysis (UEBA)

CipherCloud’s UEBA engine provides continuous monitoring of users, devices and applications, allowing IT security teams to detect abnormal user behavior in multiple clouds in real time and prevent account violations from malicious internal and external threats. AEBA can significantly improve the performance of security analyst teams combined with a state-of-the-art security information and event management solution.

Insight research

Oh, shit! Insights exam

Use of keys Authorisation to inspect interiors AEBAgranted

  1.       Incident identification for compromised user accounts

User credentials are the key to legal access, and compromised credentials are the primary vector for data leakage. While most organizations monitor for unauthorized access, older security tools monitor user behavior and stop monitoring after successful authentication. UEBA identifies these compromised users and blocks the associated access data to block the security threat and reports the incident for corrective action.

  1.       Investigations of abnormal behaviour and abuse of internal access

AEBA monitors multiple vectors, including user accounts, servers, network devices, unreliable communication sources, insecure protocols, and other signs of malicious behavior, as well as virus/threats to determine whether the protection has been disabled or removed, or whether the threat status has been updated. The UEBA solution detects when a user performs (privileged or unprivileged) risky actions that go beyond its normal basis, applies behavioural incident analysis to connect the points between unrelated actions, and stops these attacks before the loss occurs.

  1.       Eliminate data exfiltration incidents with the new channels

Data exfiltration occurs when sensitive data is inadvertently transferred outside the company. Exfiltration can be done manually – when the user transfers data from the room, or it can happen automatically if local systems are infected with malware. UEBA detects network traffic to control centres and identifies infected systems that pass data to unauthorized persons, resulting in priority incidents that need to be resolved.

  1.       Investigation of incidents and automatic recovery of suspensions of accounts

Account locks are used to protect your account from anyone trying to guess your username and password. The response to any request to suspend an account for administrative enquiries may take several hours. AEBA automates risk profiling, the assessment process and accelerates risk management decision-making, accelerates the response to incidents and eliminates incidents that have not been accurately reported. In a large organisation, this can effectively lead to significant savings in labour costs per year.

AEBA, in partnership with Insights Investigate, provides comprehensive and indispensable cloud-based security controls that secure the mobile SaaS environment for employees at remote locations.

  • Incident Management provides an overview of all incidents that have violated the organisation’s policy, and the administrator can filter the list by period (day, date, time), by cloud (managed or unmanaged), by severity (low, medium, high), or by status (open, under investigation, authorised).
  • Incident Overview provides a graphical overview of the number of incidents per type of violation, including connection, DLP, DRM and external exchange violations, malware, geo-anomalies and site anomalies.
  • Entity Overview is a graphical representation of the number of incidents per source, including users, device, location, application, content and external users.

AEBA and the threat detection and tracking centre Insights Investigate first appeared on CipherCloud.

*** This is a syndicated network of CipherCloud security bloggers. The original message can be found at https://www.ciphercloud.com/detect-and-track-threats-through-ueba-and-insights-investigate/.logrhythm ueba,exabeam ueba,ueba gartner,exabeam documentation

WSL 2

The Windows subsystem for Linux 2 (WSL2) will soon be available with the update of May 2020 (Windows 10 2004) and has new features and performance improvements.

The Windows subsystem function for Linux allows you to install and run Linux distributions in Windows 10.

However, WSL version 1 (WSL1) used a Linux-compatible kernel that translates Linux system calls so they can communicate and work with the Windows NT kernel. This has reduced performance and made it difficult, if not impossible, to run some Linux applications.

With the 2004 version of Windows 10, Microsoft tested new features of the Windows subsystem for Linux, which uses the native Linux kernel and full compatibility with system calls to run more Linux applications.

Changes in the age of adolescents

According to Microsoft, WSL 2 includes a new architecture that changes the way these Linux binaries interact with Windows and hardware. The updated version of WSL will have the same ease of use as WSL version 1.

Genuine Linux kernel

The 2004 version of Windows 10 introduces a real Linux kernel for the Windows subsystem, making it fully compatible with system calls.

This will be the first time the Linux kernel comes with Windows. The kernel is based on the source code available at kernel.org and is specially configured for WSL 2 with optimized size and performance.

Microsoft states that it will update the Linux kernel via Windows Updates, which means that you do not need to download any software or tools manually to fix the Linux kernel with security patches.

Microsoft claims that WSL 2 uses virtualization technology to run the Linux kernel in a lightweight and usable virtual machine, but it will not be a traditional virtual machine with limited resources and reduced integration.

In WSL 2 there are no traditional limitations of virtual machines such as loss of performance and limited resources.

The new virtualization technology also promises better integration between Windows and Linux, faster boot times and no VM configuration or management on your side.

WSL 2 faster than WSL 1

In WSL 2, you will notice that resource-intensive operations such as cloning git, installing npm, updating apt, etc. are much faster.

Microsoft has claimed that WSL 2 is 20 times faster than WSL 1 when it is on. It’s also about 2 to 5 times faster using git-clone, npm-installation and cmake.

In the 2004 version of Windows 10, Linux binaries that use system calls perform functions such as accessing files, retrieving memory, creating processes, and so on.

With its own Linux kernel the WSL 2 has access to full system call compatibility and offers a whole new set of applications that can be run in the container.

These improvements make WSL 2 much more powerful for running applications on Linux.

Other improvements

WSL also comes with a long list of other improvements and bug fixes. Here is a list of all changes and corrections in the new WSL update:

  • Solving a problem with the treatment of some Unicode characters
  • Corrects the rare cases where distributions were not registered when they were launched immediately after a build to build update.
  • A small problem with wsl.exe has been solved – stop when the timers of inactive cases were not cancelled.
  • Improved storage performance with the WSL VM utility. Memory that is no longer used is returned to the host.
  • Attach the input relay for operation if the stdin is a non-closed hose handle [GH 4424].
  • Put a check in euros, all caps, all letters.
  • Use the default cache=mmap for 9p mounts to fix dotnet applications.
  • Attaches to the local host relay [GH 4340].
  • Introduction of a common tmpf’s cross-distribution to distribute the state.
  • Fixed permanent network disk recovery for $1,000.
  • Upgrade the Linux kernel to version 4.19.81.
  • Change the default resolution of /dev/net/tun to 0666 [GH 4629].
  • Change the amount of memory allocated to the Linux VM to 80% of the default memory.
  • Repair the interactive server to handle timeout requests so that the wrong subscribers cannot suspend the server.
  • Remove the signal mask before starting the processes.
  • Check the creation of the symbolic link /etc/resolv.conf if the symbolic link is not relational.
  • Use storage group C to limit the amount of storage used for installation and conversion work [GH 4669].
  • Provide wsl.exe if the optional Windows Subsystem for Linux component is not enabled to improve detection.
  • Edit wsl.exe to print the help text if no additional WSL components are installed.
  • Solution for the situation of the breed when creating cases
  • Create the wslclient.dll file containing all the functions of the command line.
  • Preventing an accident when LxssManagerUser is out of operation
  • Fixed fast crash of wslapi.dll if distroName was set to NULL.

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We haven’t covered any major thing on the Raspberry Pi since our article on the 8 New Raspbian Features to Start Using on Your Raspberry Pi close to a year ago. No one needs to state how successful the Raspberry Pi has been since its inception till date, thus, the factor behind this article.

Today, we bring you a list of the best Linux distributions you can run on the Raspberry Pi perfectly. But before we delve into that list, let me brief you on NOOBS.

NOOBS

The Raspberry Pi supports several OSes and as such usually comes without one. Most of the time, however, it ships with an SD card that includes NOOBS (New Out Of the Box Software) – an OS that includes of a variety of Operating Systems from which you can choose which to or you to choose which to run on your Raspberry Pi setup.

While you can buy an SD card with NOOBS pre-installed, you can set it up yourself by following the instructions on the Raspberry Pi website.

This list includes the Operating Systems typically in NOOBS and more.

1. Raspbian

Raspbian is a Debian-based engineered especially for the Raspberry Pi and it is the perfect general-purpose OS for Raspberry users.

It employs the Openbox stacking window manager and the Pi Improved Xwindows Environment Lightweight coupled with a number of pre-installed software which includes Minecraft Pi, Java, Mathematica, and Chromium.

Raspbian is the Raspberry foundation’s official supported OS and is capable of accomplishing any task you throw at it.

Raspbian is a Debian-based OS for Raspberry

Raspbian is a Debian-based OS for Raspberry

2. OSMC

OSMC (Open Source Media Center) is a free, simple, open-source, and easy-to-use standalone Kodi OS capable of playing virtually any media format.

It features a modern beautiful minimalist User Interface and is completely customizable thanks to the several built-in images that it comes with. Choose OSMC if you run the Raspberry Pi for managing media content.

OSMC is a Kodi-centered Linux OS

OSMC is a Kodi-centered Linux OS

3. OpenELEC

OpenELEC (Open Embedded Linux Entertainment Center) is a small Linux-based JeOS (Just enough Operating System) developed from scratch to turn PCs into a Kodi media center.

On a side note,

JeOS (pronounced “juice“) is a paradigm for customizing operating systems to fit the needs of a particular application such as for a software appliance, Wikipedia

You can think of OpenELEC as a barebones Kodi as it has fewer customization options and limits access to certain areas e.g. SSH and it is more complex to customize.

Nevertheless, OpenELEC is a powerful media center that might suit your needs if OSMC doesn’t.

OpenELEC Mediacenter for Raspberry Pi

OpenELEC Mediacenter for Raspberry Pi

4. RISC OS

RISC OS is a unique open-source OS designed specifically for ARM processors by the creators of the original ARM. It is neither related to Linux nor Windows and is being maintained by a dedicated community of volunteers.

If you want to choose RISC OS, you should know that it is very different from any Linux distro or Windows OS you have used so it will take some getting used to. A good place to start is here.

RISC OS for Raspberry Pi

RISC OS for Raspberry Pi

5. Windows IoT Core

Windows IoT Core is a Windows OS built especially for the Raspberry Pi as a development platform for programmers and coders. Its aim is for programmers to use it to build prototypes of IoT devices using the Raspberry Pi and Windows 10.

It has an emphasis on security, connectivity, creation, and cloud integration. Unlike other titles on this list, you can’t use it without running Windows 10 on your PC as you need Visual Studio on a Windows 10 setup to work with it.

Check out Microsoft’s collection of projects to get you up and running with Windows IoT core here.

Windows IoT Core for Raspberry Pi

Windows IoT Core for Raspberry Pi

6. Lakka

Lakka is a free, lightweight, and open-source distro with which you can turn even the smallest PC into a full-blown game console without the need for a keyboard or mouse.

It features a beautiful User Interface and so many customization options you might get overwhelmed. Its PS4-like UX brings style to the Raspberry Pi so pick it if you’re a gamer.

Read our dedicated publication on Lakka here.

Lakka - The Open Source Game Console

Lakka – The Open Source Game Console

7. RaspBSD

RaspBSD is a free and open-source image of FreeBSD 11 that has been preconfigured in 2 images for Raspberry Pi computers.

If you didn’t know, FreeBSD isn’t Linux, but it works in pretty much the same way as it is a descendant of the research by the Berkeley Software Distribution and it is among the world’s most broadly used Operating Systems today with its code existing in-game consoles e.g. PlayStation 4, macOS, etc.

Running RaspBSD on Raspberry Pi

Running RaspBSD on Raspberry Pi

8. RetroPie

RetroPie is an open-source Debian-based software library with which you can emulate retro games on your Raspberry Pi, PC, or ODroid C1/C2 and it currently stands as the most popular option for that task.

RetroPie used the EmulationStation frontend and SBC to offer users a pleasant retro gaming experience so you can’t go wrong with it.

Learn about other ways to play retro games on Linux here.

RetroPie - Retro-gaming on the Raspberry Pi

RetroPie – Retro-gaming on the Raspberry Pi

9. Ubuntu Core

Ubuntu Core is the version of Ubuntu designed for Internet of Things applications. Ubuntu is the most popular Linux-based Operating System in the world with over 20+ derivatives and given that it has an active and welcoming forum, it will be easy to get up and running with Ubuntu Snappy Core on your Raspberry Pi.

Ubuntu Core for Raspberry Pi

Ubuntu Core for Raspberry Pi

10. Linutop

Linutop OS is a secure Raspbian-based Web Kiosk and digital signage player. It is dedicated to professionals with the need to deploy public Internet stalls and digital signage solutions using Raspberries.

This OS is perfect if you run hotels, restaurants, shops, city halls, offices, museums, etc. and it is compatible with Raspberry Pi B, B+ and 2.

Linutop for Raspberry Pi

Linutop for Raspberry Pi

11. Ubuntu Mate

Ubuntu Mate is a free and open-source resource flavour of Ubuntu designed for devices that don’t have the best hardware specs. It ships with the APT package manager and works reliably with remote workstation software such as X2GO and LTSP.

When you decide to run Ubuntu Mate, run the latest and make sure that you have at least 4GB high-speed SD card.

Ubuntu Mate for Raspberry Pi

Ubuntu Mate for Raspberry Pi

12. Domoticz

Domoticz is a free and open-source Home Automation System designed to enable users monitor and configure various devices such as switches, sensors and meters like temperature, Electra, gas, water, UV, wind, etc. and notifications/alerts can be set to any device.

It uses a scalable HTML5 web frontend for its interface and it is automatically adapted for mobile and desktop devices. Among its several features is compatibility with all browsers, auto-learning sensors/switches, extended logging, and support for external devices.

Domoticz for Raspberry Pi

Domoticz for Raspberry Pi

13. OpenSUSE

The OpenSUSE project is a worldwide initiative that promotes the use of Linux everywhere by making operating systems for desktop and server devices.

It is a severely community-driven OS and its Tumbleweed & Leap versions are an excellent choice for any Raspberry Pi especially the Raspberry 3. Learn more about OpenSUSE for the Raspberry Pi 3 here.

OpenSuse for Raspberry Pi

OpenSuse for Raspberry Pi

14. Gentoo Linux

Gentoo Linux is a free and open-source completely flexible Linux distribution that can be customized for virtually any application or computing task.

The developers develop the OS with IoT in mind, so its builds ship optimized for devices like the Raspberry Pi with security-tight modules. To install and reliably run Gentoo on a Pi, you need at least a 4GB SD card. See installation instructions here.

Gentoo Linux for Raspberry Pi

Gentoo Linux for Raspberry Pi

15. Arch Linux ARM

Arch Linux ARM is a version of one of the most popular Linux distros that people love to hate – Arch Linux. Its version 6 is built for Raspberry Pi and 7 for the Raspberry Pi 2 and they are both designed with a philosophy that emphasizes usability and simplicity and ownership. The latest version of Arch Linux ARM needs at least a 2GB SD card to run.

Arch Linux for Raspberry Pi

Arch Linux for Raspberry Pi

16. Kali Linux

Kali Linux is a free and open-source security-centric operating system that ships with advanced tools for security testing and network performance analysis.

It offers users several versions built to run on the Raspberry Pi and users get to enjoy its set of forensics and reverse engineering tools. Its installation requirement is at least an 8 GB SD card.

Kali Linux for Raspberry Pi

Kali Linux for Raspberry Pi

17. FreeBSD

FreeBSD is an operating system built to power anything from servers and desktop computers to IoT devices and cloud technologies. It has a life span of over 25 years and it offers users ARM versions that support Raspberry Pi and Raspberry Pi 2. Installation and smooth run require only a 512 MB SD card.

FreeBSD for Raspberry Pi

FreeBSD for Raspberry Pi

18. Batocera.linux

Batocera.linux is an open-source operating system built with a focus on retrogaming and while it can run on typical computers, it is specially designed for different nanocomputers such as the Odroids and Raspberry Pis. Among its features are themes, rewinding, bezels, and plug and play support.

Batocera.linux for Raspberry Pi

Batocera.linux for Raspberry Pi

19. SARPi

SARPi (Slackware ARM on a Raspberry Pi) is a community product of Slackware Linux team, that is widely used and considered one of the best preferred operating system for Raspberry Pi, that can be easily deployed on a Raspberry Pi as it boots in under 30 seconds.

Although the ARM release do not support all the applications, most essential applications have been ported for the ARM architecture.

SARPi for Raspberry Pi

SARPi for Raspberry Pi

20. BMC64

BMC64 is a free and open-source bare-metal fork of VICE’s C64 emulator. It is optimized for the Raspberry Pi with features such as low video/audio latency, true 50hz/60hz smooth scrolling, quick boot time, low latency between input and audio/video, PCB scanning, and support for wiring real keyboards and joysticks via GPIO pins.

BMC64 for Raspberry Pi

BMC64 for Raspberry Pi

That rounds up my list of operating systems you can run on the Raspberry Pi this year. Do you have a solid suggestion to make #20? The discussion section is below.

Also, what’s the future of the Raspberry Pi? Forward ever. Drop your comments section tell us why you agree or why you think otherwise. Also, feelbest os for raspberry pi 4,raspberry pi zero os,raspberry pi 4 os,ubuntu raspberry pi,osmc,dietpi,can raspberry pi 4 run ubuntu,raspbian pi 4

Security researcher warns of a new wave of MageCart attacks, he has found more than 1000 areas infected with electronic skimmers.

MageCart gangs are still very active, security researcher Max Kersten has discovered 1236 areas where the Eskimier software is installed.

Discover the 1,236 online stores involved in MageCart, their location, partners and mission information: https://t.co/kordbSFImv.

– Max Scale Kersten (@LibraAnalysis) 12. May 2020.

Hacker groups under the auspices of Magecart will continue to focus on electronic shops to use skimming software to steal payment card data. Since 2010, security companies have been monitoring at least a dozen groups.

According to a joint report by RiskIQ and FlashPoint, some groups are more advanced than others, including the gang that is being prosecuted because the 4th group seems very complex.

The list of tyre casualties is long and includes several major platforms such as British Airways, Newegg, Ticketmaster, MyPillow and Amerisleep and Feedify.

Millions of cases of Magecart have been discovered over time, and security experts have found dozens of software scripts for the scripts.

With Urlscan.io, a well-known electronic skimmer, Kersten has found compromised domains that search the internet.

The results of this study are based on data available on UrlScan. Starting with the skimmer domain, which Jacob Pelment and I were talking about, we can look for the moment when the skimmer domain turned into a chain of infections. Read the analysis published by the experts. If you repeat this process, you will get a list of all exfiltration domains in the chain until it collapses or the search is completed. You can also question each affected area recursively to find other ski areas. This addendum is considered to be outside the scope of this study.

Other security experts and companies have already found most of the domains discovered by Kersten, and although they have already reported the infection to the administrators, malware is still present.

Kersten reported her discovery to 200 site owners or managers without receiving a response.

The experts divided the results into three groups: the sites still available, the product category and the geographical location of the online shop’s head office.

70% of the 1,236 infected webshops were still available, many of which were not fully functional.

Most of the infected areas are located in the US (303), followed by India (79) and the United Kingdom (68).

Most websites seem to have been compromised by the MageCart group 12, which is a very active group under the auspices of MageCart.

It is difficult to classify skimmer infections into a specific group because skimmers have sufficient generic medicines and are readily available. Trends in the data may show interesting approaches, provided that the input data are not biased.

If you made purchases between these dates in one of the stores listed below, your credit card information may be compromised. Request a new credit card and contact your bank. Please also note that any information entered into the payment form on the website has been stolen by a credit card skimmer and should be considered compromised.

A full list of compromised websites is available at the end of the message.

Pierluigi Paganini

(Security issues – Magecart, hacking)

 

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The National Centre for Cyber Security in Great Britain (NCSC) warns of cyber attacks on British universities and research institutes involved in COVID research 19.

The National Centre for Cybersecurity in Britain (NCSC) has warned against targeted attacks on British universities and scientific institutions involved in COVID-19 research.

The NCSC reported that entities in the country are conducting cyber-espionage campaigns aimed at gathering information on research conducted by UK organisations in connection with the coronavirus pandemic. People who pose a threat seem to be very interested in the progress of immunization research.

Intelligence services believe that behind the attack are the nationals of the nation state, acting in the interests of Russia, Iran and China.

The NCSC spokesman said any attack on efforts to combat the coronavirus crisis is totally reprehensible. The proportion of cyber attacks related to coronaviruses has increased and our experts work around the clock to help organizations affected by these attacks. However, the overall level of cyber attacks, both by criminals and by states against Britain, remained stable during the pandemic.

The NCSC found that the scale of criminal and government-sponsored cyber attacks against British organisations did not change during the CWID 19 outbreak.

At the beginning of April, Health Minister Matt Hancock signed a directive giving the GCHQ intelligence service access to and control over the NHS computer network. The national health system is an important target for those involved in the threat, particularly in the context of the coronavirus pandemic.

Meanwhile, a dossier prepared by governments for Five Eyes – an intelligence alliance between Australia, Canada, New Zealand, the United Kingdom and the United States – claims that China deliberately suppressed or destroyed evidence of a coronavirus outbreak.

The Secretary of State for Health also announced that the British government is making every effort to develop the COVID-19 vaccine and is making more than £40 million available to universities and research institutes working on the development of the vaccine.

Oxford University has already started trials of human vaccines, and other institutions in the country will soon do the same.

Oxford University is working with the NCSC to protect all information related to ongoing research in COWID-19.

AstraZeneca is already working with the university on the production and distribution of the vaccine in case positive results are obtained in clinical trials.

Oxford University works closely with the NCSC to ensure that our research on Covid 19 offers the best in cyber security and protection.

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Vote on security issues for the European Blogger Award on Cyber Security – VOTE FOR YOUR WINNERS
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Pierluigi Paganini

(Security service – KOVID-19, hacking)

 

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