#byovd

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#osiris-ransomware #poortry-driver #data-exfiltration #hybrid-encryption #amsdksys #watchdog-anti-malware
Information security
fromThe Hacker News
2 days ago

New Osiris Ransomware Emerges as New Strain Using POORTRY Driver in BYOVD Attack

Osiris is a new ransomware family using POORTRY vulnerable driver in a BYOVD attack to disable security, perform per-file hybrid encryption, and exfiltrate data.
Information security
fromThe Hacker News
4 months ago

Silver Fox Exploits Microsoft-Signed WatchDog Driver to Deploy ValleyRAT Malware

Silver Fox exploited a Microsoft-signed WatchDog vulnerable driver (amsdk.sys) via BYOVD to disable endpoint protections and deploy ValleyRAT.
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