Anti-Debug CheckRemoteDebuggerPresent in Payload

Darshan Thummar@Mighty

•updated Jun 11, 2026•0•0•1

This rule detects the string "CheckRemoteDebuggerPresent" within HTTP response payloads. This string is associated with an anti-debugging technique used by malware to detect if it's being analyzed in a debugger environment. The rule specifically looks for this content in data flowing from the server to the client (flow:to_client,established; file.data;). The detection is case-insensitive (nocase).