{"id":"e34cfa0c-0a50-4210-9cb3-5632d08eb041","title":"Potential GobRAT File Discovery Via Grep","description":"Detects the use of grep to discover specific files created by the GobRAT malware","author":"Joseliyo Sanchez, @Joseliyo_Jstnk","status":"test","level":"high","date":"2023-06-02","modified":"","tags":["attack.discovery","attack.t1082"],"technique_ids":["T1082"],"logsource":{"category":"process_creation","product":"linux"},"falsepositives":["Unknown"],"references":["https://blogs.jpcert.or.jp/en/2023/05/gobrat.html","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_malware_gobrat_grep_payload_discovery.yml","source_sha256":"3e29e82c96e6422eb6dfb245390e5e281bc0bd87c0ca76ab1e85592aeffa1c2d","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/linux/process_creation/proc_creation_lnx_malware_gobrat_grep_payload_discovery.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Potential GobRAT File Discovery Via Grep\nid: e34cfa0c-0a50-4210-9cb3-5632d08eb041\nstatus: test\ndescription: Detects the use of grep to discover specific files created by the GobRAT malware\nreferences:\n    - https://blogs.jpcert.or.jp/en/2023/05/gobrat.html\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.discovery\n    - attack.t1082\nlogsource:\n    category: process_creation\n    product: linux\ndetection:\n    selection:\n        Image|endswith: '/grep'\n        CommandLine|contains:\n            - 'apached'\n            - 'frpc'\n            - 'sshd.sh'\n            - 'zone.arm'\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1082","id":"T1082","name":"System Information Discovery","page":"techniques/enterprise/T1082/"}],"data_path":"data/detection-rules/e34cfa0c-0a50-4210-9cb3-5632d08eb041.json","kind":"sigma"}