Potential Conti Ransomware Database Dumping Activity Via SQLCmd

Description

Detects a command used by conti to dump database

Query · sigma

selection_tools:
- Image|endswith: \sqlcmd.exe
- CommandLine|contains:
  - 'sqlcmd '
  - sqlcmd.exe
selection_svr:
  CommandLine|contains: ' -S localhost '
selection_query:
  CommandLine|contains:
  - sys.sysprocesses
  - master.dbo.sysdatabases
  - BACKUP DATABASE
condition: all of selection_*

Known false positives

  • Unknown
Raw source Potential Conti Ransomware Database Dumping Activity Via SQLCmd · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Potential Conti Ransomware Database Dumping Activity Via SQLCmd
id: 2f47f1fd-0901-466e-a770-3b7092834a1b
status: test
description: Detects a command used by conti to dump database
references:
    - https://twitter.com/vxunderground/status/1423336151860002816?s=20 # The leak info not the files itself
    - https://www.virustotal.com/gui/file/03e9b8c2e86d6db450e5eceec057d7e369ee2389b9daecaf06331a95410aa5f8/detection
    - https://docs.microsoft.com/en-us/sql/tools/sqlcmd-utility?view=sql-server-ver15
author: frack113
date: 2021-08-16
modified: 2023-05-04
tags:
    - attack.collection
    - attack.t1005
    - detection.emerging-threats
logsource:
    category: process_creation
    product: windows
detection:
    selection_tools:
        - Image|endswith: '\sqlcmd.exe'
        - CommandLine|contains:
              - 'sqlcmd '
              - 'sqlcmd.exe'
    selection_svr:
        CommandLine|contains: ' -S localhost '
    selection_query:
        CommandLine|contains:
            - 'sys.sysprocesses'
            - 'master.dbo.sysdatabases'
            - 'BACKUP DATABASE'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high

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