Malicious Scheduled Task Named Gentlemen via Schtasks

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-10-21
Updated
2026-10-21

ATT&CK techniques

Execution → Priv Esc
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Defense Evasion

  5. Cred Access

  6. Discovery

  7. Lateral Movement

  8. Collection

  9. C2

  10. Exfiltration

  11. Impact

What it detects

This rule detects creation of a scheduled task named gentlemen, the persistence marker used by The Gentlemen ransomware operators. The task re-launches ransomware tooling across reboots during the intrusion. Detecting this named task provides a high-confidence indicator tied directly to the campaign.

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Malicious Scheduled rundll32 Execution of ProgramData VMware DLL by BianLian
Suspicious Stately Taurus Masqueraded Service and Task Persistence via process_creation
Windows Security Log: Defendnot scheduled task (defendnot) persistence via --from-autorun
Suspicious Per Minute Scheduled Task Creation via schtasks via process_creation
Suspicious Scheduled Task Creation for System Reboot via Schtasks
Malicious Scheduled Task Named Gentlemen via Schtasks
Pivot detection · T1053.005 · 9 related

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