Malicious DarkGate hVNC Credential Stash via cmdkey

PremiumReviewedSigma · Critical · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-08-05
Updated
2026-08-28

ATT&CK techniques

Lateral Movement
  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. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects DarkGate storing hardcoded hidden-VNC credentials with cmdkey using the SafeMode user and the darkgatepassword0 secret. This exact credential string is unique to DarkGate hVNC sessions and reliably identifies the loader establishing covert remote access.

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Malicious RDP Tunneling (via rdp)
Suspicious Denied RDP Login with Valid Credentials (via security)
Malicious RDP Session Hijacking via tscon Command Line
Malicious DarkGate hVNC Credential Stash via cmdkey
Pivot detection · T1021.001 · 9 related

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