ghostsurf: From NTLM Relay to Browser Session Hijacking
ID: aaed5fb4-0c00-52a4-ae13-f5e2327ddb08
STIX ID: report--aaed5fb4-0c00-52a4-ae13-f5e2327ddb08
Feed Name: SpecterOps Blog
**Ghostsurf** is a fork of `ntlmrelayx` that reworks the relay and SOCKS proxy to support interactive browser access through relayed NTLM-authenticated sessions. The author explains why the original `ntlmrelayx` SOCKS plugin fails with browsers (stateful NTLM tied to TCP, request collisions, and the tool’s basic-auth session-selection UX), introduces serialization of requests via a mutex, preserves browser headers, and implements an IIS/HTTP.sys kernel-mode workaround that probes paths to avoid dropping authenticated sessions; usage guidance, caveats (single TCP session, no WebSocket support), and example targets (enterprise password managers and other IIS sites) are provided.
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