Suspicious Remote Scheduled Task Creation via schtasks for Lateral Movement (via process_creation)

PremiumReviewedSigma · Medium · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-07-24
Updated
2026-08-28

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 schtasks.exe creating a task against a remote system with a run-as account, the remote task scheduling method used during SUNBURST lateral movement to execute payloads on other hosts. Remote schtasks create with a system run level is rare in normal administration. Detecting it exposes lateral tool execution across the environment.

Related detections9 linkedT1053.005 — drag to rearrange
Suspicious Scheduled Task Creation Referencing dllFake Batch Scripts (via process_creation)
Suspicious Scheduled Task Creation With WebDAV Loader Task Names (via process_creation)
Suspicious Scheduled Task Creation with ClickFix Update Recon Name (via process_creation)
Malicious Scheduled Task Named Gentlemen via Schtasks
Malicious Scheduled Task Masquerading as Defender NisSrv via Schtasks
Malicious Scheduled Task Masquerading as Windows Defender Updater (via process_creation)
Suspicious Scheduled Task Masquerading as Palo Alto Cortex Services
Malicious Scheduled Task Running rundll32 w32analytics (via process_creation)
Malicious Scheduled rundll32 Execution of ProgramData VMware DLL by BianLian
Suspicious Remote Scheduled Task Creation via schtasks for Lateral Movement (via process_creation)
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.