{"id":"6414b5cd-b19d-447e-bb5e-9f03940b5784","title":"Potential DLL Sideloading Of DBGHELP.DLL","description":"Detects potential DLL sideloading of \"dbghelp.dll\"","author":"Nasreddine Bencherchali (Nextron Systems), Wietze Beukema (project and research)","status":"test","level":"medium","date":"2022-10-25","modified":"2025-10-07","tags":["attack.persistence","attack.privilege-escalation","attack.execution","attack.stealth","attack.t1574.001"],"technique_ids":["T1574.001"],"logsource":{"category":"image_load","product":"windows"},"falsepositives":["Legitimate applications loading their own versions of the DLL mentioned in this rule"],"references":["https://hijacklibs.net/"],"source_path":"rules/windows/image_load/image_load_side_load_dbghelp.yml","source_sha256":"f68c0374649e1c006c0b9cc51299f3f52bf26d8d957b6796cdd7dfc14858792a","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/image_load/image_load_side_load_dbghelp.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 DLL Sideloading Of DBGHELP.DLL\nid: 6414b5cd-b19d-447e-bb5e-9f03940b5784\nstatus: test\ndescription: Detects potential DLL sideloading of \"dbghelp.dll\"\nreferences:\n    - https://hijacklibs.net/ # For list of DLLs that could be sideloaded (search for dlls mentioned here in there)\nauthor: Nasreddine Bencherchali (Nextron Systems), Wietze Beukema (project and research)\ndate: 2022-10-25\nmodified: 2025-10-07\ntags:\n    - attack.persistence\n    - attack.privilege-escalation\n    - attack.execution\n    - attack.stealth\n    - attack.t1574.001\nlogsource:\n    category: image_load\n    product: windows\ndetection:\n    selection:\n        ImageLoaded|endswith: '\\dbghelp.dll'\n    filter_main_generic:\n        ImageLoaded|startswith:\n            - 'C:\\Program Files (x86)\\'\n            - 'C:\\Program Files\\'\n            - 'C:\\Windows\\SoftwareDistribution\\'\n            - 'C:\\Windows\\System32\\'\n            - 'C:\\Windows\\SystemTemp\\'\n            - 'C:\\Windows\\SysWOW64\\'\n            - 'C:\\Windows\\WinSxS\\'\n    filter_optional_anaconda:\n        ImageLoaded|endswith:\n            - '\\Anaconda3\\Lib\\site-packages\\vtrace\\platforms\\windll\\amd64\\dbghelp.dll'\n            - '\\Anaconda3\\Lib\\site-packages\\vtrace\\platforms\\windll\\i386\\dbghelp.dll'\n    filter_optional_epicgames:\n        ImageLoaded|endswith:\n            - '\\Epic Games\\Launcher\\Engine\\Binaries\\ThirdParty\\DbgHelp\\dbghelp.dll'\n            - '\\Epic Games\\MagicLegends\\x86\\dbghelp.dll'\n    filter_optional_opera:\n        ImageLoaded|contains: 'opera\\Opera Installer Temp\\opera_package'\n        ImageLoaded|endswith: '\\assistant\\dbghelp.dll'\n    condition: selection and not 1 of filter_main_* and not 1 of filter_optional_*\nfalsepositives:\n    - Legitimate applications loading their own versions of the DLL mentioned in this rule\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1574.001","id":"T1574.001","name":"DLL","page":"techniques/enterprise/T1574.001/"}],"data_path":"data/detection-rules/6414b5cd-b19d-447e-bb5e-9f03940b5784.json","kind":"sigma"}