sigmaDRL-1.1from SigmaHQ/sigma

Antivirus Ransomware Detection

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

Quality

100

FP risk

—

Forks

Views

ATT&CK techniques

T1486

Rule sourcerules/category/antivirus/av_ransomware.yml

title: Antivirus Ransomware Detection
id: 4c6ca276-d4d0-4a8c-9e4c-d69832f8671f
status: test
description: |
    Detects a highly relevant Antivirus alert that reports ransomware.
    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/?s=antivirus
    - https://www.virustotal.com/gui/file/43b0f7872900bd234975a0877744554f4f355dc57505517abd1ef611e1ce6916
    - https://www.virustotal.com/gui/file/c312c05ddbd227cbb08958876df2b69d0f7c1b09e5689eb9d93c5b357f63eff7
    - https://www.virustotal.com/gui/file/20179093c59bca3acc6ce9a4281e8462f577ffd29fd7bf51cf2a70d106062045
    - https://www.virustotal.com/gui/file/554db97ea82f17eba516e6a6fdb9dc04b1d25580a1eb8cb755eeb260ad0bd61d
    - https://www.virustotal.com/gui/file/69fe77dd558e281621418980040e2af89a2547d377d0f2875502005ce22bc95c
    - https://www.virustotal.com/gui/file/6f0f20da34396166df352bf301b3c59ef42b0bc67f52af3d541b0161c47ede05
author: Florian Roth (Nextron Systems), Arnim Rupp
date: 2022-05-12
modified: 2024-11-02
tags:
    - attack.t1486
    - attack.impact
logsource:
    category: antivirus
detection:
    selection:
        Signature|contains:
            - 'BlackWorm'
            - 'Chaos'
            - 'Cobra'
            - 'ContiCrypt'
            - 'Crypter'
            - 'CRYPTES'
            - 'Cryptor'
            - 'CylanCrypt'
            - 'DelShad'
            - 'Destructor'
            - 'Filecoder'
            - 'GandCrab'
            - 'GrandCrab'
            - 'Haperlock'
            - 'Hiddentear'
            - 'HydraCrypt'
            - 'Krypt'
            - 'Lockbit'
            - 'Locker'
            - 'Mallox'
            - 'Phobos'
            - 'Ransom'
            - 'Ryuk'
            - 'Ryzerlo'
            - 'Stopcrypt'
            - 'Tescrypt'
            - 'TeslaCrypt'
            - 'WannaCry'
            - 'Xorist'
    condition: selection
falsepositives:
    - Unlikely
level: critical