Suspicious svchost Execution With Anomalous Arguments via DeedRAT (via process_creation)

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-10-11
Updated
2026-10-11

ATT&CK techniques

Priv Esc → Defense Evasion
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Cred Access

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects svchost.exe launched with an underscore-delimited uppercase argument pattern and without the standard service host -k switch, an execution anomaly produced when DeedRAT injects into svchost. Genuine svchost instances are started by services.exe with a -k service group argument.

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Suspicious svchost Execution With Anomalous Arguments via DeedRAT (via process_creation)
Pivot detection · T1055 · 9 related

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