Detectionmediumtest

Pubprn.vbs Proxy Execution

Detects the use of the 'Pubprn.vbs' Microsoft signed script to execute commands.

Convert In Phoenix Studio

Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.

François HubautCreated Sat May 281fb76ab8-fa60-4b01-bddd-71e89bf555dawindows

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:
        CommandLine|contains|all:
            - '\pubprn.vbs'
            - 'script:'
    condition: selection

False Positives

Unknown

False positive likelihood has not been assessed. Additional context may be needed during triage.

References

MITRE ATT&CK

Tactics

Sub-techniques

Rule Metadata

Rule ID

1fb76ab8-fa60-4b01-bddd-71e89bf555da

Status

test

Level

medium

Type

Detection

Created

Sat May 28

Author

Path

rules/windows/process_creation/proc_creation_win_lolbin_pubprn.yml

Raw Tags

attack.defense-evasionattack.t1216.001