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Microsoft's love for Linux continues… Microsoft has released its command-line shell and scripting language PowerShell Core for Linux operating system as a Snap package, making it easier for Linux users to install Microsoft PowerShell on their system. Yes, you heard me right. Microsoft has made PowerShell Core available to the Ubuntu Snap Store as a Snap application. PowerShell Core is a cross-platform version of Windows PowerShell that is already available for Windows, macOS, and Linux OS and has been designed for sysadmins who manage assets in hybrid clouds and heterogeneous environments. Snap is a universal Linux packaging system, built by Canonical for the Ubuntu operating system, which makes an application compatible for all major Linux distributions without requiring any modification. A Snap package is basically an application compressed together with its dependencies and also includes instructions on how to run and interact with other software on various Linu...

It's time to gear up your systems and software for the latest July 2018 Microsoft security patch updates. Microsoft today released security patch updates for 53 vulnerabilities, affecting Windows, Internet Explorer (IE), Edge, ChakraCore, .NET Framework, ASP.NET, PowerShell, Visual Studio, and Microsoft Office and Office Services, and Adobe Flash Player. Out of 53 vulnerabilities, 17 are rated critical, 34 important, one moderate and one as low in severity. This month there is no critical vulnerability patched in Microsoft Windows operating system and surprisingly, none of the flaw patched by the tech giant this month is listed as publicly known or under active attack. Critical Flaws Patched In Microsoft Products Most of the critical issues are memory corruption flaws in IE, Edge browser and Chakra scripting engine, which if successfully exploited, could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system in the context of the cur...

Get ready to install a fairly large batch of security patches onto your Windows computers. As part of its September Patch Tuesday , Microsoft has released a large batch of security updates to patch a total of 81 CVE-listed vulnerabilities, on all supported versions of Windows and other MS products. The latest security update addresses 27 critical and 54 important vulnerabilities in severity, of which 38 vulnerabilities are impacting Windows, 39 could lead to Remote Code Execution (RCE). Affected Microsoft products include: Internet Explorer Microsoft Edge Microsoft Windows .NET Framework Skype for Business and Lync Microsoft Exchange Server Microsoft Office, Services and Web Apps Adobe Flash Player .NET 0-Day Flaw Under Active Attack According to the company, four of the patched vulnerabilities are publicly known, one of which has already been actively exploited by the attackers in the wild. Here's the list of publically known flaws and their impact: W...

It's Patch Tuesday once again…time for another round of security updates for the Windows operating system and other Microsoft products. This month Windows users and system administrators need to immediately take care of a total of 63 security vulnerabilities, of which 12 are rated critical, 49 important and one moderate and one low in severity. Two of the vulnerabilities patched by the tech giant this month are listed as publicly known at the time of release, and one flaw is reported as being actively exploited in the wild by multiple cybercriminal groups. Zero-Day Vulnerability Being Exploited by Cyber Criminals The zero-day vulnerability, tracked as CVE-2018-8589 , which is being exploited in the wild by multiple advanced persistent threat groups was first spotted and reported by security researchers from Kaspersky Labs. The flaw resides in the Win32k component (win32k.sys), which if exploited successfully, could allow a malicious program to execute arbitrary code...

The Russian nation-state actor tracked as Secret Blizzard has been observed leveraging malware associated with other threat actors to deploy a known backdoor called Kazuar on target devices located in Ukraine. The new findings come from the Microsoft threat intelligence team, which said it observed the adversary leveraging the Amadey bot malware to download custom malware onto "specifically selected" systems associated with the Ukrainian military between March and April 2024. The activity is assessed to be the second time since 2022 that Secret Blizzard, also known as Turla, has latched onto a cybercrime campaign to propagate its own tools in Ukraine. "Commandeering other threat actors' access highlights Secret Blizzard's approach to diversifying its attack vectors," the company said in a report shared with The Hacker News. Some of the other known methods employed by the hacking crew include adversary-in-the-middle ( AitM ) campaigns, strategic web compro...

Threat actors are actively carrying out opportunistic  scanning  and  exploitation  of Exchange servers using a new exploit chain leveraging a trio of flaws affecting on-premises installations, making them the latest set of bugs after ProxyLogon vulnerabilities were exploited en masse at the start of the year. The remote code execution flaws have been collectively dubbed "ProxyShell." At least 30,000 machines are affected by the vulnerabilities,  according  to a Shodan scan performed by Jan Kopriva of SANS Internet Storm Center. "Started to see in the wild exploit attempts against our honeypot infrastructure for the Exchange ProxyShell vulnerabilities," NCC Group's Richard Warren  tweeted , noting that one of the intrusions resulted in the deployment of a "C# aspx webshell in the /aspnet_client/ directory." Patched in early March 2021,  ProxyLogon  is the moniker for CVE-2021-26855, a server-side request forgery vulnerability in Exchange ...

Great news for hackers. Now you can download and install Kali Linux directly from the Microsoft App Store on Windows 10 just like any other application. I know it sounds crazy, but it's true! Kali Linux, a very popular, free, and open-source Linux-based operating system widely used for hacking and penetration testing, is now natively available on Windows 10, without requiring dual boot or virtualization. Kali Linux is the latest Linux distribution to be made available on the Windows App Store for one-click installation, joining the list of other popular distribution such as Ubuntu , OpenSUSE and SUSE Enterprise Linux . In Windows 10, Microsoft has provided a feature called " Windows Subsystem for Linux " (WSL) that allows users to run Linux applications directly on Windows. "For the past few weeks, we've been working with the Microsoft WSL team to get Kali Linux introduced into the Microsoft App Store as an official WSL distribution, and today we...

Cybercriminals, including state-sponsored hackers, have started actively exploiting a newly discovered Microsoft Office vulnerability that Microsoft does not consider as a security issue and has already denied to patch it. Last month, we reported how hackers could leverage a built-in feature of Microsoft Office feature, called Dynamic Data Exchange (DDE), to perform code execution on the targeted device without requiring Macros enabled or memory corruption. DDE protocol is one of the several methods that Microsoft uses to allow two running applications to share the same data. The protocol is being used by thousands of apps, including MS Excel, MS Word, Quattro Pro, and Visual Basic for one-time data transfers and for continuous exchanges for sending updates to one another. Soon after the details of DDE attack went public , several reports emerged about various widespread attack campaigns abusing this technique in the wild to target several organisations with malware. Now,...

Microsoft on Monday published guidance for a newly discovered  zero-day security flaw  in its Office productivity suite that could be exploited to achieve code execution on affected systems. The weakness, now assigned the identifier  CVE-2022-30190 , is rated 7.8 out of 10 for severity on the CVSS vulnerability scoring system. Microsoft Office versions Office 2013, Office 2016, Office 2019, and Office 2021, as well as Professional Plus editions, are impacted.  "To help protect customers, we've published CVE-2022-30190 and additional guidance  here ," a Microsoft spokesperson told The Hacker News in an emailed statement. The  Follina  vulnerability, which came to light late last week, involved a real-world exploit that leveraged the shortcoming in a weaponized Word document to execute arbitrary PowerShell code by making use of the "ms-msdt:" URI scheme. The sample was uploaded to VirusTotal from Belarus. But first signs of exploitation of the flaw...

Microsoft has released an advisory for a high-severity security flaw affecting on-premise versions of Exchange Server that could allow an attacker to gain elevated privileges under certain conditions. The vulnerability, tracked as CVE-2025-53786 , carries a CVSS score of 8.0. Dirk-jan Mollema with Outsider Security has been acknowledged for reporting the bug. "In an Exchange hybrid deployment, an attacker who first gains administrative access to an on-premises Exchange server could potentially escalate privileges within the organization's connected cloud environment without leaving easily detectable and auditable traces," the tech giant said in the alert. "This risk arises because Exchange Server and Exchange Online share the same service principal in hybrid configurations." Successful exploitation of the flaw could allow an attacker to escalate privileges within the organization's connected cloud environment without leaving easily detectable and audit...

Watch out Windows users! There's a new strain of malware making rounds on the Internet that has already infected thousands of computers worldwide and most likely, your antivirus program would not be able to detect it. Why? That's because, first, it's an advanced fileless malware and second, it leverages only legitimate built-in system utilities and third-party tools to extend its functionality and compromise computers, rather than using any malicious piece of code. The technique of bringing its own legitimate tools is effective and has rarely been spotted in the wild, helping attackers to blend in their malicious activities with regular network activity or system administration tasks while leaving fewer footprints. Independently discovered by cybersecurity researchers at Microsoft and Cisco Talos, the malware — dubbed " Nodersok " and " Divergent " — is primarily being distributed via malicious online advertisements and infecting users using ...

The threat actor known as Cloud Atlas has been observed using a previously undocumented malware called VBCloud as part of its cyber attack campaigns targeting "several dozen users" in 2024. "Victims get infected via phishing emails containing a malicious document that exploits a vulnerability in the formula editor (CVE-2018-0802) to download and execute malware code," Kaspersky researcher Oleg Kupreev said in an analysis published this week. More than 80% of the targets were located in Russia. A lesser number of victims have been reported from Belarus, Canada, Moldova, Israel, Kyrgyzstan, Turkey, and Vietnam. Also referred to as Clean Ursa, Inception, Oxygen, and Red October, Cloud Atlas is an unattributed threat activity cluster that has been active since 2014. In December 2022, the group was linked to cyber attacks aimed at Russia, Belarus, and Transnistria that deployed a PowerShell-based backdoor called PowerShower. Then exactly a year later, Russian cy...

More than a week after Microsoft released a  one-click mitigation tool  to mitigate cyberattacks targeting on-premises Exchange servers, the company  disclosed  that patches have been applied to 92% of all internet-facing servers affected by the ProxyLogon vulnerabilities. The development, a 43% improvement from the previous week, caps off a whirlwind of espionage and malware campaigns that hit thousands of companies worldwide, with as many as 10 advanced persistent threat (APT) groups opportunistically moving quickly to exploit the bugs. According to telemetry data from RiskIQ, there are roughly 29,966 instances of Microsoft Exchange servers still exposed to attacks, down from 92,072 on March 10. While Exchange servers were under assault by multiple Chinese-linked state-sponsored hacking groups prior to  Microsoft's patch  on March 2, the release of  public proof-of-concept  exploits fanned a feeding frenzy of infections, opening the door fo...

Cybersecurity researchers have called attention to a cyber attack in which unknown threat actors deployed an open-source endpoint monitoring and digital forensic tool called Velociraptor , illustrating ongoing abuse of legitimate software for malicious purposes. "In this incident, the threat actor used the tool to download and execute Visual Studio Code with the likely intention of creating a tunnel to an attacker-controlled command-and-control (C2) server," the Sophos Counter Threat Unit Research Team said in a report published this week.  While threat actors are known to adopt living-off-the-land (LotL) techniques or take advantage of legitimate remote monitoring and management (RMM) tools in their attacks, the use of Velociraptor signals a tactical evolution, where incident response programs are being used to obtain a foothold and minimize the need for having to deploy their own malware.  Further analysis of the incident has revealed that the attackers used the Wind...