TrymeLocker Winlogon Shell Registry Persistence Modification

Ibrahim Saud@tektrix

•updated Jun 28, 2026•0•0•4

Detects modifications to the 'Shell' or 'Userinit' values within the 'Winlogon' registry key, excluding the default 'explorer.exe' value. Attackers often modify these keys to gain persistence by executing malicious binaries automatically when a user logs in.