Detectionhightest

Execute Pcwrun.EXE To Leverage Follina

Detects indirect command execution via Program Compatibility Assistant "pcwrun.exe" leveraging the follina (CVE-2022-30190) vulnerability

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Nasreddine Bencherchali (Nextron Systems)Created Mon Jun 136004abd0-afa4-4557-ba90-49d172e0a299windows

Log Source

WindowsProcess Creation

ProductWindows← raw: windows

CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic

detection:
    selection:
        Image|endswith: '\pcwrun.exe'
        CommandLine|contains: '../'
    condition: selection

False Positives

Unlikely

False positives are unlikely for most environments. High confidence detection.

References

MITRE ATT&CK

Tactics

Techniques

Rule Metadata

Rule ID

6004abd0-afa4-4557-ba90-49d172e0a299

Status

test

Level

high

Type

Detection

Created

Mon Jun 13

Author

Path

rules/windows/process_creation/proc_creation_win_lolbin_pcwrun_follina.yml

Raw Tags

attack.defense-evasionattack.t1218attack.execution