{"id":"c39f0c81-7348-4965-ab27-2fde35a1b641","title":"DCOM InternetExplorer.Application Iertutil DLL Hijack - Security","description":"Detects a threat actor creating a file named `iertutil.dll` in the `C:\\Program Files\\Internet Explorer\\` directory over the network for a DCOM InternetExplorer DLL Hijack scenario.","author":"Roberto Rodriguez @Cyb3rWard0g, Open Threat Research (OTR)","status":"test","level":"high","date":"2020-10-12","modified":"2022-11-26","tags":["attack.lateral-movement","attack.t1021.002","attack.t1021.003"],"technique_ids":["T1021.002","T1021.003"],"logsource":{"product":"windows","service":"security"},"falsepositives":["Unknown"],"references":["https://threathunterplaybook.com/hunts/windows/201009-RemoteDCOMIErtUtilDLLHijack/notebook.html"],"source_path":"rules/windows/builtin/security/win_security_dcom_iertutil_dll_hijack.yml","source_sha256":"24e23ab7d09298a600fb73b1c3b96afcc0c76fdd964a6ab6cfb27970eec7743b","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/builtin/security/win_security_dcom_iertutil_dll_hijack.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: DCOM InternetExplorer.Application Iertutil DLL Hijack - Security\nid: c39f0c81-7348-4965-ab27-2fde35a1b641\nstatus: test\ndescription: Detects a threat actor creating a file named `iertutil.dll` in the `C:\\Program Files\\Internet Explorer\\` directory over the network for a DCOM InternetExplorer DLL Hijack scenario.\nreferences:\n    - https://threathunterplaybook.com/hunts/windows/201009-RemoteDCOMIErtUtilDLLHijack/notebook.html\nauthor: Roberto Rodriguez @Cyb3rWard0g, Open Threat Research (OTR)\ndate: 2020-10-12\nmodified: 2022-11-26\ntags:\n    - attack.lateral-movement\n    - attack.t1021.002\n    - attack.t1021.003\nlogsource:\n    product: windows\n    service: security\ndetection:\n    selection:\n        EventID: 5145\n        RelativeTargetName|endswith: '\\Internet Explorer\\iertutil.dll'\n    filter:\n        SubjectUserName|endswith: '$'\n    condition: selection and not filter\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1021.002","id":"T1021.002","name":"SMB/Windows Admin Shares","page":"techniques/enterprise/T1021.002/"},{"key":"enterprise/T1021.003","id":"T1021.003","name":"Distributed Component Object Model","page":"techniques/enterprise/T1021.003/"}],"data_path":"data/detection-rules/c39f0c81-7348-4965-ab27-2fde35a1b641.json","kind":"sigma"}