Malicious Scheduled Task Masquerading as svchost by Estate Ransomware

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-09-26
Updated
2026-09-26

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 or pointing at svchost.exe, used by Estate Ransomware for daily persistence. Naming the task after a core system process disguises the malicious autostart. A user-created task masquerading as svchost is a strong indicator of compromise.

Related detections9 linkedT1053.005 — drag to rearrange
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Malicious Scheduled Task Masquerading as svchost by Estate Ransomware
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.