Chisel Reverse Tunnel Tool Execution from Temporary Directory

PremiumReviewedSigma · Medium · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-09-08
Updated
2026-09-08

ATT&CK techniques

Lateral Movement → C2
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Collection

  11. Exfiltration

  12. Impact

What it detects

This rule detects execution of the Chisel tunneling utility from a temporary or ProgramData directory. RedCurl deploys Chisel under an obfuscated garble and UPX packed name to pivot and tunnel through compromised networks.

Related detections9 linkedT1572 — drag to rearrange
Suspicious OpenSSH Reverse Tunnel Creation via Process Creation
Suspicious DNS Query to Dynamic DNS and Tunneling Providers Abused by RATs
Suspicious SSH Reverse Tunnel Over DNS Port
Malicious BlackCat Munchkin Controller Execution via process_creation
Suspicious Reverse SSH Tunnel Exposing Local SSH via process_creation
Suspicious DCOM Command Execution with Output Redirection to ADMIN Share
Suspicious OpenSSH Reverse Tunnel Establishment via process_creation
Suspicious LocalToNet Tunneling Tool Execution
Malicious RDP Tunneling via ngrok (via process_creation)
Chisel Reverse Tunnel Tool Execution from Temporary Directory
Pivot detection · T1572 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.