PrintBrm ZIP Creation of Extraction — Sigma Rule

Rule metadata and linked tags

Author: frack113. Source status: test; severity: high. Source dates: 2022-05-02 / not supplied.

{
  "product": "windows",
  "category": "process_creation"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: efbea052bf037ecdaac18ef9da23bb125b9a2ba096bc108b0e19b2fcb7edb0b5

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: PrintBrm ZIP Creation of Extraction
id: cafeeba3-01da-4ab4-b6c4-a31b1d9730c7
status: test
description: Detects the execution of the LOLBIN PrintBrm.exe, which can be used to create or extract ZIP files. PrintBrm.exe should not be run on a normal workstation.
references:
    - https://lolbas-project.github.io/lolbas/Binaries/PrintBrm/
author: frack113
date: 2022-05-02
tags:
    - attack.command-and-control
    - attack.stealth
    - attack.t1105
    - attack.t1564.004
logsource:
    product: windows
    category: process_creation
detection:
    selection:
        Image|endswith: '\PrintBrm.exe'
        CommandLine|contains|all:
            - ' -f'
            - '.zip'
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://lolbas-project.github.io/lolbas/Binaries/PrintBrm/