Suspicious Fake ACPIx86 Driver File Creation (via file_event)

ATT&CK techniques

Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1014Rootkit
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects creation of a driver file named ACPIx86.sys in the system drivers directory. The OBSCURE#BAT campaign dropped this fake driver, whose name imitates a legitimate Windows component, as part of its rootkit deployment.

Reporting behind it

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Suspicious Fake ACPIx86 Driver File Creation (via file_event)

Pivot detection · T1014 · 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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