Masquerading Machine-Like Local Admin Account Creation Ending With Dollar Sign (via process_creation)

ATT&CK techniques

Persistence → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1136.001Local Account
Priv Esc
Defense Evasion
- T1036Masquerading
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects creation of a local account whose name ends with a dollar sign, a masquerading technique from the Truesec intrusion where operators created admin accounts mimicking machine accounts to blend into directory listings. Adversaries use dollar-suffixed names to hide backdoor accounts, making creation of such an account a focused persistence indicator.

Reporting behind it

Related detections9 linkedT1136.001 — drag to rearrange

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Masquerading Machine-Like Local Admin Account Creation Ending With Dollar Sign (via process_creation)

Pivot detection · T1136.001 · 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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