Suspicious Robocopy of Signal Directory to Public Staging Path by UNC1151 (via process_creation)

ATT&CK techniques

Collection

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
- T1074.001Local Data Staging
C2
Exfiltration
Impact

What it detects

This rule detects robocopy copying a Signal application directory into a Users Public staging location, the collection and staging technique UNC1151 used to gather Signal data before exfiltration. Copying messaging data to a shared public path is a common pre-exfiltration staging behavior.

Reporting behind it

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Suspicious Robocopy of Signal Directory to Public Staging Path by UNC1151 (via process_creation)

Pivot detection · T1074.001 · 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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