Malicious GHOSTENGINE Scheduled Task Creation Masquerading as Updater via process_creation

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-09-17
Updated
2026-09-17

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 scheduled tasks using GHOSTENGINE masquerade names such as OneDriveCloudSync DefaultBrowserUpdate and OneDriveCloudBackup that run payloads as SYSTEM. These tasks impersonate legitimate update services to persist the crypto mining operation. The specific task names are strong indicators of this intrusion set.

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Malicious CloudZ RAT Persistence via schtasks Running regasm.exe
Suspicious Scheduled Task Creation for WSPrint Persistence by UAT-9244
Malicious GHOSTENGINE Scheduled Task Creation Masquerading as Updater 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.