Suspicious Chisel Reverse Tunnel Execution by UAT-9686
- Category
- process_creation
- Author
- HuntRule
- Published
- 2026-06-02
- Updated
- 2026-08-28
ATT&CK techniques
C2Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
Exfiltration
Impact
What it detects
This rule detects execution of a Chisel client establishing a reverse SOCKS tunnel over HTTP. UAT-9686 deploys Chisel alongside a reverse SSH tunnel to maintain remote access to compromised Cisco email appliances. Reverse tunnels let an actor pivot into internal networks while blending with web traffic.
Reporting behind it
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
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