Detection rules › Sigma
Visual Basic Command Line Compiler Usage
Detects successful code compilation via Visual Basic Command Line Compiler that utilizes Windows Resource to Object Converter.
Known false positives
- Utilization of this tool should not be seen in enterprise environment
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Stealth |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
| Security-Auditing | Event ID 4688: A new process has been created. |
Rule body
title: Visual Basic Command Line Compiler Usage
id: 7b10f171-7f04-47c7-9fa2-5be43c76e535
status: test
description: Detects successful code compilation via Visual Basic Command Line Compiler that utilizes Windows Resource to Object Converter.
references:
- https://lolbas-project.github.io/lolbas/Binaries/Vbc/
author: 'Ensar Şamil, @sblmsrsn, @oscd_initiative'
date: 2020-10-07
modified: 2021-11-27
tags:
- attack.stealth
- attack.t1027.004
logsource:
category: process_creation
product: windows
detection:
selection:
ParentImage|endswith: '\vbc.exe'
Image|endswith: '\cvtres.exe'
condition: selection
falsepositives:
- Utilization of this tool should not be seen in enterprise environment
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
ParentImage|endswith: '\vbc.exe'
Image|endswith: '\cvtres.exe'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
Image | ends_with |
| field:"Image" kind:ends_with value:"\cvtres.exe" |
ParentImage | ends_with |
| field:"ParentImage" kind:ends_with value:"\vbc.exe" |