PT-2026-60211

Microsoft AVML before 0.17.0 could follow a symlink when opening a destination output path on Unix, allowing truncation/overwrite of the symlink target. The destructive effect is performed at open-time via O TRUNC, and can happen before full input validation completes “truncation-before-validatio...

Cyber threat activity in Ukraine: analysis and resources

UPDATE 27 Apr 2022: See Updated malware details and Microsoft security product detections below as discussed in the Special Report: Ukraine. UPDATE 02 MAR 2022: See Updated malware details and Microsoft security product detections below for additional insights and protections specific to the...

DownlevelDefender: Signature Enabled

Detects whether the DownlevelDefender product's signature is enabled...