{"id":"c947b146-0abc-4c87-9c64-b17e9d7274a2","title":"Shadow Copies Deletion Using Operating Systems Utilities","description":"Shadow Copies deletion using operating systems utilities","author":"Florian Roth (Nextron Systems), Michael Haag, Teymur Kheirkhabarov, Daniil Yugoslavskiy, oscd.community, Andreas Hunkeler (@Karneades)","status":"stable","level":"high","date":"2019-10-22","modified":"2022-11-03","tags":["attack.impact","attack.stealth","attack.t1070","attack.t1490"],"technique_ids":["T1070","T1490"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Legitimate Administrator deletes Shadow Copies using operating systems utilities for legitimate reason","LANDesk LDClient Ivanti-PSModule (PS EncodedCommand)"],"references":["https://www.slideshare.net/heirhabarov/hunting-for-credentials-dumping-in-windows-environment","https://blog.talosintelligence.com/2017/05/wannacry.html","https://securingtomorrow.mcafee.com/other-blogs/mcafee-labs/new-teslacrypt-ransomware-arrives-via-spam/","https://www.bleepingcomputer.com/news/security/why-everyone-should-disable-vssadmin-exe-now/","https://www.hybrid-analysis.com/sample/ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa?environmentId=100","https://github.com/Neo23x0/Raccine#the-process","https://github.com/Neo23x0/Raccine/blob/20a569fa21625086433dcce8bb2765d0ea08dcb6/yara/gen_ransomware_command_lines.yar","https://redcanary.com/blog/intelligence-insights-october-2021/","https://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/blackbyte-exbyte-ransomware"],"source_path":"rules/windows/process_creation/proc_creation_win_susp_shadow_copies_deletion.yml","source_sha256":"7eaeb361923239bbce4c3786d69fbde1dd97330894634215f3050f05a6effd3a","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_susp_shadow_copies_deletion.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Shadow Copies Deletion Using Operating Systems Utilities\nid: c947b146-0abc-4c87-9c64-b17e9d7274a2\nstatus: stable\ndescription: Shadow Copies deletion using operating systems utilities\nreferences:\n    - https://www.slideshare.net/heirhabarov/hunting-for-credentials-dumping-in-windows-environment\n    - https://blog.talosintelligence.com/2017/05/wannacry.html\n    - https://securingtomorrow.mcafee.com/other-blogs/mcafee-labs/new-teslacrypt-ransomware-arrives-via-spam/\n    - https://www.bleepingcomputer.com/news/security/why-everyone-should-disable-vssadmin-exe-now/\n    - https://www.hybrid-analysis.com/sample/ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa?environmentId=100\n    - https://github.com/Neo23x0/Raccine#the-process\n    - https://github.com/Neo23x0/Raccine/blob/20a569fa21625086433dcce8bb2765d0ea08dcb6/yara/gen_ransomware_command_lines.yar\n    - https://redcanary.com/blog/intelligence-insights-october-2021/\n    - https://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/blackbyte-exbyte-ransomware\nauthor: Florian Roth (Nextron Systems), Michael Haag, Teymur Kheirkhabarov, Daniil Yugoslavskiy, oscd.community, Andreas Hunkeler (@Karneades)\ndate: 2019-10-22\nmodified: 2022-11-03\ntags:\n    - attack.impact\n    - attack.stealth\n    - attack.t1070\n    - attack.t1490\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection1_img:\n        - Image|endswith:\n              - '\\powershell.exe'\n              - '\\pwsh.exe'\n              - '\\wmic.exe'\n              - '\\vssadmin.exe'\n              - '\\diskshadow.exe'\n        - OriginalFileName:\n              - 'PowerShell.EXE'\n              - 'pwsh.dll'\n              - 'wmic.exe'\n              - 'VSSADMIN.EXE'\n              - 'diskshadow.exe'\n    selection1_cli:\n        CommandLine|contains|all:\n            - 'shadow'  # will match \"delete shadows\" and \"shadowcopy delete\" and \"shadowstorage\"\n            - 'delete'\n    selection2_img:\n        - Image|endswith: '\\wbadmin.exe'\n        - OriginalFileName: 'WBADMIN.EXE'\n    selection2_cli:\n        CommandLine|contains|all:\n            - 'delete'\n            - 'catalog'\n            - 'quiet' # will match -quiet or /quiet\n    selection3_img:\n        - Image|endswith: '\\vssadmin.exe'\n        - OriginalFileName: 'VSSADMIN.EXE'\n    selection3_cli:\n        CommandLine|contains|all:\n            - 'resize'\n            - 'shadowstorage'\n        CommandLine|contains:\n            - 'unbounded'\n            - '/MaxSize='\n    condition: (all of selection1*) or (all of selection2*) or (all of selection3*)\nfalsepositives:\n    - Legitimate Administrator deletes Shadow Copies using operating systems utilities for legitimate reason\n    - LANDesk LDClient Ivanti-PSModule (PS EncodedCommand)\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1070","id":"T1070","name":"Indicator Removal","page":"techniques/enterprise/T1070/"},{"key":"enterprise/T1490","id":"T1490","name":"Inhibit System Recovery","page":"techniques/enterprise/T1490/"}],"data_path":"data/detection-rules/c947b146-0abc-4c87-9c64-b17e9d7274a2.json","kind":"sigma"}