{"id":"6763c6c8-bd01-4687-bc8d-4fa52cf8ba08","title":"Outlook EnableUnsafeClientMailRules Setting Enabled - Registry","description":"Detects an attacker trying to enable the outlook security setting \"EnableUnsafeClientMailRules\" which allows outlook to run applications or execute macros","author":"Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"high","date":"2023-02-08","modified":"2023-08-17","tags":["attack.persistence","attack.defense-impairment","attack.t1112"],"technique_ids":["T1112"],"logsource":{"category":"registry_set","product":"windows"},"falsepositives":["Unknown"],"references":["https://support.microsoft.com/en-us/topic/how-to-control-the-rule-actions-to-start-an-application-or-run-a-macro-in-outlook-2016-and-outlook-2013-e4964b72-173c-959d-5d7b-ead562979048","https://speakerdeck.com/heirhabarov/hunting-for-persistence-via-microsoft-exchange-server-or-outlook?slide=44"],"source_path":"rules/windows/registry/registry_set/registry_set_office_outlook_enable_unsafe_client_mail_rules.yml","source_sha256":"9a42ceb5d7f9b57dd76034dae0edf366bb7a4c892276ddbd9898363538648d3d","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/registry/registry_set/registry_set_office_outlook_enable_unsafe_client_mail_rules.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Outlook EnableUnsafeClientMailRules Setting Enabled - Registry\nid: 6763c6c8-bd01-4687-bc8d-4fa52cf8ba08\nrelated:\n    - id: c3cefdf4-6703-4e1c-bad8-bf422fc5015a\n      type: similar\n    - id: 55f0a3a1-846e-40eb-8273-677371b8d912 # ProcCreation variation\n      type: similar\nstatus: test\ndescription: Detects an attacker trying to enable the outlook security setting \"EnableUnsafeClientMailRules\" which allows outlook to run applications or execute macros\nreferences:\n    - https://support.microsoft.com/en-us/topic/how-to-control-the-rule-actions-to-start-an-application-or-run-a-macro-in-outlook-2016-and-outlook-2013-e4964b72-173c-959d-5d7b-ead562979048\n    - https://speakerdeck.com/heirhabarov/hunting-for-persistence-via-microsoft-exchange-server-or-outlook?slide=44\nauthor: Nasreddine Bencherchali (Nextron Systems)\ndate: 2023-02-08\nmodified: 2023-08-17\ntags:\n    - attack.persistence\n    - attack.defense-impairment\n    - attack.t1112\nlogsource:\n    category: registry_set\n    product: windows\ndetection:\n    selection:\n        TargetObject|endswith: '\\Outlook\\Security\\EnableUnsafeClientMailRules'\n        Details: 'DWORD (0x00000001)'\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1112","id":"T1112","name":"Modify Registry","page":"techniques/enterprise/T1112/"}],"data_path":"data/detection-rules/6763c6c8-bd01-4687-bc8d-4fa52cf8ba08.json","kind":"sigma"}