Malicious Scheduled Task Masquerading as Google Updater via Schtasks

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1053.005Scheduled Task
Persistence
- T1053.005Scheduled Task
Priv Esc
- T1053.005Scheduled Task
Defense Evasion
- T1036.005Match Legitimate Resource Name or Location
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects creation of a scheduled task named after the Google updater with the highest run level triggered on user logon. The CL-STA-1062 actor deploying the TinyRCT backdoor against Southeast Asian governments registers a task called GoogleUpdaterTaskSystem to blend with legitimate Chrome update tasks. Detecting this masqueraded persistence surfaces an elevated logon-triggered foothold hiding behind a trusted name.

Reporting behind it

Related detections9 linkedT1036.005 — drag to rearrange

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Malicious Scheduled Task Masquerading as Google Updater via Schtasks

Pivot detection · T1036.005 · 9 related

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