Windows' phishing protection ships a hidden crypto engine π
ThreatAssessment.dll = the DLL that evaluates suspicious files for phishing.
It bundles OpenSSL with a full AES-256 β but exports zero crypto.
π https://t.co/WEdvrDXN45
#infosec#reverseengineering#malware
cryptoss.dll = a Microsoft-signed OpenSSL hidden in System32. Only 2 exports β the AES isn't. By reversing I found the offsets: any binary can encrypt/decrypt with zero crypto code, evading static detection.
https://t.co/bxR39J5oFV
#infosec#reverseengineering#malware
Undefend (MS-Nightmares) focused on blocking Windows Defender updates. This is v2: the same class of technique, extended across most AV/EDR update pipelines β Kaspersky, ESET, Microsoft Defender, and Windows Update- https://t.co/mdvHKAwGKi
#cyber#cve#microsoft#EDR#malware