SnowBasin Python Backdoor - Python Process Binding Local HTTP Listener on Loopback

Ankit Mehta@Secvyn

•updated Jun 30, 2026•0•0•1

Detects Python processes binding to or establishing network connections on the local loopback interface (127.0.0.1 or ::1) on non-standard ports. This behavior may indicate a local backdoor, proxy, or C2 listener implemented in Python that is not associated with common development tools or environments.