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41–50 of 140 articles
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Bleeping Computer
Hackers are adding malicious functionality to WinRAR self-extracting archives that contain harmless decoy files, allowing them to plant backdoors without triggering the security agent on the target system. [...]
The Register
Criminals add extra payloads and obfuscation tactics - time to get checking for unwelcome visitors The operators behind Gootloader, a crew dubbed UNC2565, have upgraded the code in cunning ways to make it more intrusive and harder to find.…
Dark Reading
Aiming to give threat hunters a list of popular attack tactics, a cybersecurity team analyzed collections of real-world threat data to find attackers' most popular techniques.
Bleeping Computer
A previously undocumented, fully undetectable PowerShell backdoor is being actively used by a threat actor who has targeted at least 69 entities. [...]
The Hacker News
Details have emerged about a previously undocumented and fully undetectable (FUD) PowerShell backdoor that gains its stealth by disguising itself as part of a Windows update process. "The covert self-developed tool and the associated C2 commands seem to be the work of a sophisticated, unknown threat actor who has targeted approximately 100 victims," Tomer Bar, director of security research at
ZDNet Security
PowerShell is often abused by attackers but defenders should not switch off the Windows command-line tool, warn cybersecurity agencies.
The Register
Use it sensibly instead – which means turning on the useful bits Microsoft doesn't enable by default Windows PowerShell is enormously useful, extremely prevalent, and often by crooks because it offers an express route into the heart of Windows servers and networks.… targeted
Bleeping Computer
The National Security Agency (NSA) and cybersecurity partner agencies issued an advisory today recommending system administrators to use PowerShell to prevent and detect malicious activity on Windows machines. [...]
Bleeping Computer
Security researchers have discovered a new Microsoft Office zero-day vulnerability that is currently exploited in phishing attacks to install malware on devices simply by opening a Word document. [...]
The Register
And that's a bit odd, says Red Canary A strain of Windows uses PowerShell to add a malicious extension to a victim's Chrome browser for nefarious purposes. A macOS variant exists that uses Bash to achieve the same and also targets Safari.…