{"id":"edd595d7-7895-4fa7-acb3-85a18a8772ca","title":"Steganography Unzip Hidden Information From Picture File","description":"Detects extracting of zip file from image file","author":"Pawel Mazur","status":"test","level":"low","date":"2021-09-09","modified":"2022-10-09","tags":["attack.stealth","attack.t1027.003"],"technique_ids":["T1027.003"],"logsource":{"product":"linux","service":"auditd"},"falsepositives":["Unknown"],"references":["https://zerotoroot.me/steganography-hiding-a-zip-in-a-jpeg-file/"],"source_path":"rules/linux/auditd/execve/lnx_auditd_unzip_hidden_zip_files_steganography.yml","source_sha256":"af9dbfe7d5d0b086af9f6b4d9f8d82193b50c94a47ea26c40eea8a21ea08be14","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/linux/auditd/execve/lnx_auditd_unzip_hidden_zip_files_steganography.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Steganography Unzip Hidden Information From Picture File\nid: edd595d7-7895-4fa7-acb3-85a18a8772ca\nstatus: test\ndescription: Detects extracting of zip file from image file\nreferences:\n    - https://zerotoroot.me/steganography-hiding-a-zip-in-a-jpeg-file/\nauthor: 'Pawel Mazur'\ndate: 2021-09-09\nmodified: 2022-10-09\ntags:\n    - attack.stealth\n    - attack.t1027.003\nlogsource:\n    product: linux\n    service: auditd\ndetection:\n    commands:\n        type: EXECVE\n        a0: unzip\n    a1:\n        a1|endswith:\n            - '.jpg'\n            - '.png'\n    condition: commands and a1\nfalsepositives:\n    - Unknown\nlevel: low\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1027.003","id":"T1027.003","name":"Steganography","page":"techniques/enterprise/T1027.003/"}],"data_path":"data/detection-rules/edd595d7-7895-4fa7-acb3-85a18a8772ca.json","kind":"sigma"}