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Bleeping Computer
Over the weekend, security researcher Abdelhamid Naceri (also known as Nightmare Eclipse) released another Microsoft Defender zero-day exploit that blocks antivirus updates. [...]
Bleeping Computer
Microsoft has resolved a bug that caused Windows Defender to crash after a recent security update, resulting in 0xc0000005 access violation errors on some affected systems. [...]
Dark Reading
Three proof-of-concept exploits are being used in active attacks against Microsoft's built-in security platform; two are unpatched.
The Register
Two rounds of reports and patches may not have completely closed this hole Researchers at US/Israeli infosec outfit SafeBreach last Friday discussed flaws in Microsoft and Kaspersky security products that can potentially allow the remote deletion of files. And, they asserted, the hole could remain exploitable – even after both vendors claim to have patched the problem.… BLACK HAT ASIA
Bleeping Computer
Microsoft has patched today a Windows Defender SmartScreen zero-day exploited in the wild by a financially motivated threat group to deploy the DarkMe remote access trojan (RAT). [...]
Dark Reading
Threat actors were actively exploiting CVE-2023-36025 in Windows SmartScreen as a zero-day vulnerability before Microsoft patched it in November.
Dark Reading
Threat actors were actively exploiting CVE-2023-36025 in Windows SmartScreen as a zero-day vulnerability before Microsoft patched it in November.
Dark Reading
Threat actors were actively exploiting CVE-2023-36025 in Windows SmartScreen as a zero-day vulnerability before Microsoft patched it in November.
Dark Reading
Newly patched flaw allowed attackers to sneak malware past Defender, delete benign files, and inflict mayhem on target systems.
The Hacker News
A threat actor associated with the LockBit 3.0 ransomware-as-a-service (RaaS) operation has been observed abusing the Windows Defender command-line tool to decrypt and load Cobalt Strike payloads. According to a report published by SentinelOne last week, the incident occurred after obtaining initial access via the Log4Shell vulnerability against an unpatched VMware Horizon Server. "Once initial