{"id":"68c8acb4-1b60-4890-8e82-3ddf7a6dba84","title":"HH.EXE Execution","description":"Detects the execution of \"hh.exe\" to open \".chm\" files.","author":"E.M. Anhaus (originally from Atomic Blue Detections, Dan Beavin), oscd.community","status":"test","level":"low","date":"2019-10-24","modified":"2023-12-11","tags":["attack.stealth","attack.t1218.001"],"technique_ids":["T1218.001"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["False positives are expected with legitimate \".CHM\""],"references":["https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1218.001/T1218.001.md","https://eqllib.readthedocs.io/en/latest/analytics/b25aa548-7937-11e9-8f5c-d46d6d62a49e.html","https://www.zscaler.com/blogs/security-research/unintentional-leak-glimpse-attack-vectors-apt37"],"source_path":"rules/windows/process_creation/proc_creation_win_hh_chm_execution.yml","source_sha256":"80788d0b9ba4b120302d57df1e33451238e696bce1235aadaac1f2f548fb2cc5","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_hh_chm_execution.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: HH.EXE Execution\nid: 68c8acb4-1b60-4890-8e82-3ddf7a6dba84\nstatus: test\ndescription: Detects the execution of \"hh.exe\" to open \".chm\" files.\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1218.001/T1218.001.md\n    - https://eqllib.readthedocs.io/en/latest/analytics/b25aa548-7937-11e9-8f5c-d46d6d62a49e.html\n    - https://www.zscaler.com/blogs/security-research/unintentional-leak-glimpse-attack-vectors-apt37\nauthor: E.M. Anhaus (originally from Atomic Blue Detections, Dan Beavin), oscd.community\ndate: 2019-10-24\nmodified: 2023-12-11\ntags:\n    - attack.stealth\n    - attack.t1218.001\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_img:\n        - OriginalFileName: 'HH.exe'\n        - Image|endswith: '\\hh.exe'\n    selection_cli:\n        CommandLine|contains: '.chm'\n    condition: all of selection_*\nfalsepositives:\n    - False positives are expected with legitimate \".CHM\"\nlevel: low\nregression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_hh_chm_execution/info.yml\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1218.001","id":"T1218.001","name":"Compiled HTML File","page":"techniques/enterprise/T1218.001/"}],"data_path":"data/detection-rules/68c8acb4-1b60-4890-8e82-3ddf7a6dba84.json","kind":"sigma"}