{"id":"1ac14d38-3dfc-4635-92c7-e3fd1c5f5bfc","title":"Winrar Compressing Dump Files","description":"Detects execution of WinRAR in order to compress a file with a \".dmp\"/\".dump\" extension, which could be a step in a process of dump file exfiltration.","author":"Florian Roth (Nextron Systems)","status":"test","level":"medium","date":"2022-01-04","modified":"2023-09-12","tags":["attack.collection","attack.t1560.001"],"technique_ids":["T1560.001"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Legitimate use of WinRAR with a command line in which \".dmp\" or \".dump\" appears accidentally","Legitimate use of WinRAR to compress WER \".dmp\" files for troubleshooting"],"references":["https://www.crowdstrike.com/blog/overwatch-exposes-aquatic-panda-in-possession-of-log-4-shell-exploit-tools/"],"source_path":"rules/windows/process_creation/proc_creation_win_winrar_exfil_dmp_files.yml","source_sha256":"8a89765d94c9de6fb5cc54e3caf0c9550ee896dffeee93153e3ea6fef9b79878","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_winrar_exfil_dmp_files.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Winrar Compressing Dump Files\nid: 1ac14d38-3dfc-4635-92c7-e3fd1c5f5bfc\nrelated:\n    - id: ec570e53-4c76-45a9-804d-dc3f355ff7a7\n      type: similar\nstatus: test\ndescription: Detects execution of WinRAR in order to compress a file with a \".dmp\"/\".dump\" extension, which could be a step in a process of dump file exfiltration.\nreferences:\n    - https://www.crowdstrike.com/blog/overwatch-exposes-aquatic-panda-in-possession-of-log-4-shell-exploit-tools/\nauthor: Florian Roth (Nextron Systems)\ndate: 2022-01-04\nmodified: 2023-09-12\ntags:\n    - attack.collection\n    - attack.t1560.001\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_img:\n        - Image|endswith:\n              - '\\rar.exe'\n              - '\\winrar.exe'\n        - Description: 'Command line RAR'\n    selection_extension:\n        CommandLine|contains:\n            - '.dmp'\n            - '.dump'\n            - '.hdmp'\n    condition: all of selection_*\nfalsepositives:\n    - Legitimate use of WinRAR with a command line in which \".dmp\" or \".dump\" appears accidentally\n    - Legitimate use of WinRAR to compress WER \".dmp\" files for troubleshooting\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1560.001","id":"T1560.001","name":"Archive via Utility","page":"techniques/enterprise/T1560.001/"}],"data_path":"data/detection-rules/1ac14d38-3dfc-4635-92c7-e3fd1c5f5bfc.json","kind":"sigma"}