Suspicious Scheduled Task Creation for WSPrint Persistence by UAT-9244

PremiumReviewedSigma · Medium · v1
Category
process_creation
Author
HuntRule
Published
2026-09-11
Updated
2026-09-11

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 that runs at system startup, matching the WSPrint persistence used by UAT-9244. The actor registers a task to relaunch a side-loaded implant on boot under a printing service name. Startup scheduled tasks provide durable persistence across reboots.

Related detections9 linkedT1053.005 — drag to rearrange
Suspicious Scheduled Task Creation Launching mshta via schtasks (via process_creation)
Suspicious Service or Task Named windowsinspectionupdate (via process_creation)
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
Suspicious Scheduled Task Creation for WSPrint Persistence by UAT-9244
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.