{"id":"cf610c15-ed71-46e1-bdf8-2bd1a99de6c4","title":"Download File To Potentially Suspicious Directory Via Wget","description":"Detects the use of wget to download content to a suspicious directory","author":"Joseliyo Sanchez, @Joseliyo_Jstnk","status":"test","level":"medium","date":"2023-06-02","modified":"","tags":["attack.command-and-control","attack.t1105"],"technique_ids":["T1105"],"logsource":{"category":"process_creation","product":"linux"},"falsepositives":["Unknown"],"references":["https://blogs.jpcert.or.jp/en/2023/05/gobrat.html","https://jstnk9.github.io/jstnk9/research/GobRAT-Malware/","https://www.virustotal.com/gui/file/60bcd645450e4c846238cf0e7226dc40c84c96eba99f6b2cffcd0ab4a391c8b3/detection","https://www.virustotal.com/gui/file/3e44c807a25a56f4068b5b8186eee5002eed6f26d665a8b791c472ad154585d1/detection"],"source_path":"rules/linux/process_creation/proc_creation_lnx_wget_download_suspicious_directory.yml","source_sha256":"14737602c969f85f54f67c52398b37bbada647dc8509bf1e268bedfc5db946ca","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/linux/process_creation/proc_creation_lnx_wget_download_suspicious_directory.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Download File To Potentially Suspicious Directory Via Wget\nid: cf610c15-ed71-46e1-bdf8-2bd1a99de6c4\nstatus: test\ndescription: Detects the use of wget to download content to a suspicious directory\nreferences:\n    - https://blogs.jpcert.or.jp/en/2023/05/gobrat.html\n    - https://jstnk9.github.io/jstnk9/research/GobRAT-Malware/\n    - https://www.virustotal.com/gui/file/60bcd645450e4c846238cf0e7226dc40c84c96eba99f6b2cffcd0ab4a391c8b3/detection\n    - https://www.virustotal.com/gui/file/3e44c807a25a56f4068b5b8186eee5002eed6f26d665a8b791c472ad154585d1/detection\nauthor: Joseliyo Sanchez, @Joseliyo_Jstnk\ndate: 2023-06-02\ntags:\n    - attack.command-and-control\n    - attack.t1105\nlogsource:\n    category: process_creation\n    product: linux\ndetection:\n    selection_img:\n        Image|endswith: '/wget'\n    selection_output:\n        - CommandLine|re: '\\s-O\\s' # We use regex to ensure a case sensitive argument detection\n        - CommandLine|contains: '--output-document'\n    selection_path:\n        CommandLine|contains: '/tmp/'\n    condition: all of selection_*\nfalsepositives:\n    - Unknown\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1105","id":"T1105","name":"Ingress Tool Transfer","page":"techniques/enterprise/T1105/"}],"data_path":"data/detection-rules/cf610c15-ed71-46e1-bdf8-2bd1a99de6c4.json","kind":"sigma"}