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In May of 2021, Microsoft released a patch to correct CVE-2021-31181 – a remote code execution bug in the supported versions of Microsoft SharePoint Server. This bug was reported to the ZDI program by an anonymous researcher and is also Read More …
In an investigation into techniques used to either avoid or disable AMSI, Sophos researchers said on Wednesday that threat actors will try everything from living-off-the-land tactics to fileless attacks. Perhaps the opportunities AMSI bypass represents were highlighted in a tweet Read More …
A massive malware campaign pushed the Java-based STRRAT remote access trojan (RAT), known for its data theft capabilities and the ability to fake ransomware attacks. In a series of tweets, the Microsoft Security Intelligence team outlined how this “massive email Read More …
Microsoft’s May Patch Tuesday release addressed a modest 55 cybersecurity vulnerabilities, including just four critical bugs. It’s the smallest monthly update from the computing giant since 2020, but it does contain a patch for a concerning wormable vulnerability found in Read More …
Cyber criminals are trying to use vulnerabilities in Microsoft Exchange servers to add to their botnet for mining cryptocurrency – but the level of access they’re gaining means they could use their access for other, much more dangerous cyberattacks. Detailed Read More …
Microsoft today has released security updates for Exchange Server that address a set of four vulnerabilities with severity scores ranging from high to critical. All the flaws lead to remote code execution on a vulnerable machine and were discovered and Read More …
The Cybersecurity and Infrastructure Security Agency (CISA) has instructed US government agencies with on-premise Exchange systems to run Microsoft malware scanners and report results by April 5. CISA issued supplementary direction to its “ED 21-02” directive; the new request applies Read More …
Researchers have provided insight into China Chopper, a web shell used by the state-sponsored Hafnium hacking group. Hafnium is a group of cyberattackers originating from China. The collective recently came into the spotlight due to Microsoft linking them to recent Read More …
Recently patched Microsoft Exchange vulnerabilities are under fire from at least 10 different advanced persistent threat (APT) groups, all bent on compromising email servers around the world. Overall exploitation activity is snowballing, according to researchers. Microsoft said in early March Read More …
On Mar. 2, 2021, Volexity reported in-the-wild-exploitation of four Microsoft Exchange Server vulnerabilities: CVE-2021-26855, CVE-2021-26857, CVE-2021-26858 and CVE-2021-27065. As a result of these vulnerabilities being exploited, adversaries can access Microsoft Exchange Servers and allow installation of additional tools to facilitate Read More …
