Suspicious svchost Invocation with Non-Standard svcr Argument

ATT&CK techniques

Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1036.005Match Legitimate Resource Name or Location
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects svchost.exe launched with a -svcr argument, which is not a legitimate Service Host switch. The Horns and Hooves campaign used a fake svchost invocation to run WUDFHost.exe and mask malicious execution as a normal service host process.

Reporting behind it

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Suspicious svchost Invocation with Non-Standard svcr Argument

Pivot detection · T1036.005 · 9 related

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

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