Detection rules › Sigma
PrintBrm ZIP Creation of Extraction
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.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Stealth | T1564.004 Hide Artifacts: NTFS File Attributes |
| Command & Control | T1105 Ingress Tool Transfer |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 1 | Process creation |
| Security-Auditing | Event ID 4688 | A new process has been created. |
Rule body yaml
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
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image|endswith: '\PrintBrm.exe'
CommandLine|contains|all:
- ' -f'
- '.zip'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
CommandLine | match |
|
Image | ends_with |
|