Malicious Hidden PowerShell Execution From PerfLogs via Process Creation

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1059.001PowerShell
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects PowerShell launched with a hidden window that references an executable under the PerfLogs directory. The DroxiDat and SystemBC intrusion staged payloads such as hos.exe in C:\perflogs and executed them through hidden PowerShell, a technique used to run malware from an unusual location while suppressing any visible window.

Reporting behind it

Related detections9 linkedT1059.001 — drag to rearrange

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Suspicious Cleo Autorun Health Check File Drop (via file_event)

Suspicious PowerShell Spawned by VBScript for RMM Delivery

Suspicious PowerShell Loading Fake Edge Update Script

Malicious Hidden PowerShell Execution From PerfLogs via Process Creation

Pivot detection · T1059.001 · 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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