SigmaHQ/rules/proxy/proxy_ua_cryptominer.yml

title: Crypto Miner User Agent
id: fa935401-513b-467b-81f4-f9e77aa0dd78
status: experimental
description: Detects suspicious user agent strings used by crypto miners in proxy logs
author: Florian Roth
date: 2019/10/21
modified: 2020/09/03
references:
    - https://github.com/xmrig/xmrig/blob/da22b3e6c45825f3ac1f208255126cb8585cd4fc/src/base/kernel/Platform_win.cpp#L65
    - https://github.com/xmrig/xmrig/blob/427b6516e0550200c17ca28675118f0fffcc323f/src/version.h
logsource:
    category: proxy
detection:
    selection:
      c-useragent|startswith:
        # XMRig
        - 'XMRig '
        # CCMiner
        - 'ccminer'
    condition: selection
fields:
    - ClientIP
    - c-uri
    - c-useragent
falsepositives:
    - Unknown
level: high
tags:
    - attack.command_and_control
    - attack.t1071.001