{"id":"ec0722a3-eb5c-4a56-8ab2-bf6f20708592","title":"Renamed Gpg.EXE Execution","description":"Detects the execution of a renamed \"gpg.exe\". Often used by ransomware and loaders to decrypt/encrypt data.","author":"Nasreddine Bencherchali (Nextron Systems), frack113","status":"test","level":"high","date":"2023-08-09","modified":"","tags":["attack.impact","attack.t1486"],"technique_ids":["T1486"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":[],"references":["https://securelist.com/locked-out/68960/"],"source_path":"rules/windows/process_creation/proc_creation_win_renamed_gpg4win.yml","source_sha256":"ff626c529eeefca72de679f1bb79a120593ccc60dfab59bfaa4771d344b949da","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_renamed_gpg4win.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Renamed Gpg.EXE Execution\nid: ec0722a3-eb5c-4a56-8ab2-bf6f20708592\nstatus: test\ndescription: Detects the execution of a renamed \"gpg.exe\". Often used by ransomware and loaders to decrypt/encrypt data.\nreferences:\n    - https://securelist.com/locked-out/68960/\nauthor: Nasreddine Bencherchali (Nextron Systems), frack113\ndate: 2023-08-09\ntags:\n    - attack.impact\n    - attack.t1486\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        OriginalFileName: 'gpg.exe'\n    filter_main_img:\n        Image|endswith:\n            - '\\gpg.exe'\n            - '\\gpg2.exe'\n    condition: selection and not 1 of filter_main_*\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1486","id":"T1486","name":"Data Encrypted for Impact","page":"techniques/enterprise/T1486/"}],"data_path":"data/detection-rules/ec0722a3-eb5c-4a56-8ab2-bf6f20708592.json","kind":"sigma"}