{"id":"faa48cae-6b25-4f00-a094-08947fef582f","title":"Rar Usage with Password and Compression Level","description":"Detects the use of rar.exe, on the command line, to create an archive with password protection or with a specific compression level. This is pretty indicative of malicious actions.","author":"@ROxPinTeddy","status":"test","level":"high","date":"2020-05-12","modified":"2022-03-16","tags":["attack.collection","attack.t1560.001"],"technique_ids":["T1560.001"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Legitimate use of Winrar command line version","Other command line tools, that use these flags"],"references":["https://labs.sentinelone.com/the-anatomy-of-an-apt-attack-and-cobaltstrike-beacons-encoded-configuration/","https://ss64.com/bash/rar.html","https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1560.001/T1560.001.md"],"source_path":"rules/windows/process_creation/proc_creation_win_rar_compression_with_password.yml","source_sha256":"fbbabcb389390efd1728e94af601372010e885c3ffc9f8caaa0d0bfc883b952d","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_rar_compression_with_password.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Rar Usage with Password and Compression Level\nid: faa48cae-6b25-4f00-a094-08947fef582f\nstatus: test\ndescription: Detects the use of rar.exe, on the command line, to create an archive with password protection or with a specific compression level. This is pretty indicative of malicious actions.\nreferences:\n    - https://labs.sentinelone.com/the-anatomy-of-an-apt-attack-and-cobaltstrike-beacons-encoded-configuration/\n    - https://ss64.com/bash/rar.html\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1560.001/T1560.001.md\nauthor: '@ROxPinTeddy'\ndate: 2020-05-12\nmodified: 2022-03-16\ntags:\n    - attack.collection\n    - attack.t1560.001\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_password:\n        CommandLine|contains: ' -hp'\n    selection_other:\n        CommandLine|contains:\n            - ' -m'\n            - ' a '\n    condition: selection_password and selection_other\nfalsepositives:\n    - Legitimate use of Winrar command line version\n    - Other command line tools, that use these flags\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1560.001","id":"T1560.001","name":"Archive via Utility","page":"techniques/enterprise/T1560.001/"}],"data_path":"data/detection-rules/faa48cae-6b25-4f00-a094-08947fef582f.json","kind":"sigma"}