Sigma Rule Library

Antivirus - Hacktool Signature

Detects a highly relevant Antivirus alert that reports a hack tool or other attack tool. This event must not be ignored just because the AV has blocked the malware but investigate, how it came there in the first place.

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Detection logic

selection

- Signature|startswith:
    - ATK/
    - Exploit.Script.CVE
    - HKTL
    - HTOOL
    - PWS.
    - PWSX
    - SecurityTool
- Signature|contains:
    - Adfind
    - BloodH
    - BloodyAD
    - Brutel
    - BruteR
    - Cobalt
    - COBEACON
    - Cometer
    - DumpCreds
    - EDRfreeze
    - FastReverseProxy
    - Hacktool
    - Havoc
    - Impacket
    - Keylogger
    - Koadic
    - Mimikatz
    - Nighthawk
    - PentestPowerShell
    - Potato
    - PowerSploit
    - PowerSSH
    - PshlSpy
    - PSWTool
    - PWCrack
    - PWDump
    - Responder
    - Rozena
    - Rusthound
    - Sbelt
    - Seatbelt
    - SecurityTool
    - SharpDump
    - SharpHound
    - Shellcode
    - Sliver
    - Snaffler
    - SOAPHound
    - Splinter
    - Stowaway
    - Swrort
    - Trojan.Hound
    - TurtleLoader
    - Undefend
    - Undfnd

Condition

selection

Raw YAML

title: Antivirus - Hacktool Signature
id: fa0c05b6-8ad3-468d-8231-c1cbccb64fba
status: stable
description: |
    Detects a highly relevant Antivirus alert that reports a hack tool or other attack tool.
    This event must not be ignored just because the AV has blocked the malware but investigate, how it came there in the first place.
references:
    - https://www.nextron-systems.com/2021/08/16/antivirus-event-analysis-cheat-sheet-v1-8-2/
    - https://www.nextron-systems.com/?s=antivirus
author: Florian Roth (Nextron Systems), Arnim Rupp
date: 2021-08-16
modified: 2026-06-15
tags:
    - attack.execution
    - attack.t1204
logsource:
    category: antivirus
detection:
    selection:
        - Signature|startswith:
              - 'ATK/'  # Sophos
              - 'Exploit.Script.CVE'
              - 'HKTL'
              - 'HTOOL'
              - 'PWS.'
              - 'PWSX'
              - 'SecurityTool'
              # - 'FRP.'
        - Signature|contains:
              - 'Adfind'
              - 'BloodH'
              - 'BloodyAD'
              - 'Brutel'
              - 'BruteR'
              - 'Cobalt'
              - 'COBEACON'
              - 'Cometer'
              - 'DumpCreds'
              - 'EDRfreeze'
              - 'FastReverseProxy'
              - 'Hacktool'
              - 'Havoc'
              - 'Impacket'
              - 'Keylogger'
              - 'Koadic'
              - 'Mimikatz'
              - 'Nighthawk'
              - 'PentestPowerShell'
              - 'Potato'
              - 'PowerSploit'
              - 'PowerSSH'
              - 'PshlSpy'
              - 'PSWTool'
              - 'PWCrack'
              - 'PWDump'
              - 'Responder'
              - 'Rozena'
              - 'Rusthound'
              - 'Sbelt'
              - 'Seatbelt'
              - 'SecurityTool'
              - 'SharpDump'
              - 'SharpHound'
              - 'Shellcode'
              - 'Sliver'
              - 'Snaffler'
              - 'SOAPHound'
              - 'Splinter'
              - 'Stowaway'
              - 'Swrort'
              - 'Trojan.Hound'
              - 'TurtleLoader'
              - 'Undefend'
              - 'Undfnd'
    condition: selection
falsepositives:
    - Unlikely
level: high

False positives

  • Unlikely

References

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