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UAC Bypass via Unsafe Deserialization in Event Viewer
Identifies attempts to bypass User Account Control (UAC) via Unsafe .Net Deserialization in Windows Event Viewer. Attackers bypass UAC to stealthily execute code with elevated permissions.
Detection Logic
file where event.action != "deletion" and file.name : "RecentViews" and
file.path : "?:\\Users\\*\\AppData\\*\\Microsoft\\Event Viewer\\RecentViews" and
process.executable != null and
not process.executable :
("?:\\Windows\\System32\\mmc.exe",
"?:\\Windows\\SysWOW64\\mmc.exe",
"?:\\Windows\\System32\\svchost.exe",
"?:\\Windows\\Explorer.exe",
"?:\\Program Files\\Citrix\\User Profile Manager\\UserProfileManager.exe",
"?:\\ProgramData\\ForensiT\\Transwiz\\Deployment Files\\Transwiz.exe",
"?:\\Windows\\WinSxS\\*\\mmc.exe",
"?:\\Program Files\\*.exe",
"?:\\Program Files (x86)\\*.exe",
"?:\\Windows\\System32\\dllhost.exe",
"?:\\Windows\\System32\\taskhost.exe") and
not user.id : ("S-1-5-18", "S-1-5-19", "S-1-5-20") and
not (process.code_signature.subject_name : "ForensiT Limited" and process.code_signature.trusted == true) Field Validations
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