{"id":"4c6ca276-d4d0-4a8c-9e4c-d69832f8671f","title":"Antivirus Ransomware Detection","description":"Detects a highly relevant Antivirus alert that reports ransomware.\nThis event must not be ignored just because the AV has blocked the malware but investigate, how it came there in the first place.\n","author":"Florian Roth (Nextron Systems), Arnim Rupp","status":"test","level":"critical","date":"2022-05-12","modified":"2024-11-02","tags":["attack.t1486","attack.impact"],"technique_ids":["T1486"],"logsource":{"category":"antivirus"},"falsepositives":["Unlikely"],"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"],"source_path":"rules/category/antivirus/av_ransomware.yml","source_sha256":"495145d9b413f68d1a3a26fa7215deee1dc8c8dcb839ccb714175ee78673fca0","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/category/antivirus/av_ransomware.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Antivirus Ransomware Detection\nid: 4c6ca276-d4d0-4a8c-9e4c-d69832f8671f\nstatus: test\ndescription: |\n    Detects a highly relevant Antivirus alert that reports ransomware.\n    This event must not be ignored just because the AV has blocked the malware but investigate, how it came there in the first place.\nreferences:\n    - https://www.nextron-systems.com/?s=antivirus\n    - https://www.virustotal.com/gui/file/43b0f7872900bd234975a0877744554f4f355dc57505517abd1ef611e1ce6916\n    - https://www.virustotal.com/gui/file/c312c05ddbd227cbb08958876df2b69d0f7c1b09e5689eb9d93c5b357f63eff7\n    - https://www.virustotal.com/gui/file/20179093c59bca3acc6ce9a4281e8462f577ffd29fd7bf51cf2a70d106062045\n    - https://www.virustotal.com/gui/file/554db97ea82f17eba516e6a6fdb9dc04b1d25580a1eb8cb755eeb260ad0bd61d\n    - https://www.virustotal.com/gui/file/69fe77dd558e281621418980040e2af89a2547d377d0f2875502005ce22bc95c\n    - https://www.virustotal.com/gui/file/6f0f20da34396166df352bf301b3c59ef42b0bc67f52af3d541b0161c47ede05\nauthor: Florian Roth (Nextron Systems), Arnim Rupp\ndate: 2022-05-12\nmodified: 2024-11-02\ntags:\n    - attack.t1486\n    - attack.impact\nlogsource:\n    category: antivirus\ndetection:\n    selection:\n        Signature|contains:\n            - 'BlackWorm'\n            - 'Chaos'\n            - 'Cobra'\n            - 'ContiCrypt'\n            - 'Crypter'\n            - 'CRYPTES'\n            - 'Cryptor'\n            - 'CylanCrypt'\n            - 'DelShad'\n            - 'Destructor'\n            - 'Filecoder'\n            - 'GandCrab'\n            - 'GrandCrab'\n            - 'Haperlock'\n            - 'Hiddentear'\n            - 'HydraCrypt'\n            - 'Krypt'\n            - 'Lockbit'\n            - 'Locker'\n            - 'Mallox'\n            - 'Phobos'\n            - 'Ransom'\n            - 'Ryuk'\n            - 'Ryzerlo'\n            - 'Stopcrypt'\n            - 'Tescrypt'\n            - 'TeslaCrypt'\n            - 'WannaCry'\n            - 'Xorist'\n    condition: selection\nfalsepositives:\n    - Unlikely\nlevel: critical\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1486","id":"T1486","name":"Data Encrypted for Impact","page":"techniques/enterprise/T1486/"}],"data_path":"data/detection-rules/4c6ca276-d4d0-4a8c-9e4c-d69832f8671f.json","kind":"sigma"}