Snowlight Debugger Detection via verifier.dll Load by wusvc.exe

Subhankar H@Andrewsec57

•updated Jul 6, 2026•2•0•16

Detects the Snowlight dropper (wusvc.exe) attempting to evade analysis by loading 'verifier.dll' to perform anti-debugging checks. This technique, associated with UNC5221 activity, involves inspecting the process environment and debugger-related messages to detect the presence of debugging tools.