{"id":"45810b50-7edc-42ca-813b-bdac02fb946b","title":"Steganography Hide Zip Information in Picture File","description":"Detects appending of zip file to image","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_hidden_zip_files_steganography.yml","source_sha256":"f9f4435695227436ce3833948741dfaaf145123bbd9c86889e20f017f281697a","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/linux/auditd/execve/lnx_auditd_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 Hide Zip Information in Picture File\nid: 45810b50-7edc-42ca-813b-bdac02fb946b\nstatus: test\ndescription: Detects appending of zip file to image\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: cat\n    a1:\n        a1|endswith:\n            - '.jpg'\n            - '.png'\n    a2:\n        a2|endswith: '.zip'\n    condition: commands and a1 and a2\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/45810b50-7edc-42ca-813b-bdac02fb946b.json","kind":"sigma"}