{"id":"42205c73-75c8-4a63-9db1-e3782e06fda0","title":"Suspicious Application Allowed Through Exploit Guard","description":"Detects applications being added to the \"allowed applications\" list of exploit guard in order to bypass controlled folder settings","author":"Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"high","date":"2022-08-05","modified":"2023-08-17","tags":["attack.defense-impairment","attack.t1685"],"technique_ids":["T1685"],"logsource":{"category":"registry_set","product":"windows"},"falsepositives":["Unlikely"],"references":["https://www.microsoft.com/security/blog/2017/10/23/windows-defender-exploit-guard-reduce-the-attack-surface-against-next-generation-malware/"],"source_path":"rules/windows/registry/registry_set/registry_set_exploit_guard_susp_allowed_apps.yml","source_sha256":"75929dea3c68d9854206555592db1a9870ecc8180b57ce7a2db796107fe084f0","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/registry/registry_set/registry_set_exploit_guard_susp_allowed_apps.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Suspicious Application Allowed Through Exploit Guard\nid: 42205c73-75c8-4a63-9db1-e3782e06fda0\nstatus: test\ndescription: Detects applications being added to the \"allowed applications\" list of exploit guard in order to bypass controlled folder settings\nreferences:\n    - https://www.microsoft.com/security/blog/2017/10/23/windows-defender-exploit-guard-reduce-the-attack-surface-against-next-generation-malware/\nauthor: Nasreddine Bencherchali (Nextron Systems)\ndate: 2022-08-05\nmodified: 2023-08-17\ntags:\n    - attack.defense-impairment\n    - attack.t1685\nlogsource:\n    category: registry_set\n    product: windows\ndetection:\n    selection_key:\n        TargetObject|contains: 'SOFTWARE\\Microsoft\\Windows Defender\\Windows Defender Exploit Guard\\Controlled Folder Access\\AllowedApplications'\n    selection_paths:\n        TargetObject|contains:\n            # Add more paths you don't allow in your org\n            - '\\Users\\Public\\'\n            - '\\AppData\\Local\\Temp\\'\n            - '\\Desktop\\'\n            - '\\PerfLogs\\'\n            - '\\Windows\\Temp\\'\n    condition: all of selection_*\nfalsepositives:\n    - Unlikely\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1685","id":"T1685","name":"Disable or Modify Tools","page":"techniques/enterprise/T1685/"}],"data_path":"data/detection-rules/42205c73-75c8-4a63-9db1-e3782e06fda0.json","kind":"sigma"}