{"id":"a24e5861-c6ca-4fde-a93c-ba9256feddf0","title":"Uncommon Process Access Rights For Target Image","description":"Detects process access request to uncommon target images with a \"PROCESS_ALL_ACCESS\" access mask.\n","author":"Nasreddine Bencherchali (Nextron Systems), frack113","status":"test","level":"low","date":"2024-05-27","modified":"","tags":["attack.privilege-escalation","attack.stealth","attack.t1055.011"],"technique_ids":["T1055.011"],"logsource":{"category":"process_access","product":"windows"},"falsepositives":["Unknown"],"references":["https://learn.microsoft.com/en-us/windows/win32/procthread/process-security-and-access-rights"],"source_path":"rules/windows/process_access/proc_access_win_susp_all_access_uncommon_target.yml","source_sha256":"a2cd30b3cdbad276c2c1fcf313880826f6ea248e88fd8a691603e5ec17043065","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_access/proc_access_win_susp_all_access_uncommon_target.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Uncommon Process Access Rights For Target Image\nid: a24e5861-c6ca-4fde-a93c-ba9256feddf0\nstatus: test\ndescription: |\n    Detects process access request to uncommon target images with a \"PROCESS_ALL_ACCESS\" access mask.\nreferences:\n    - https://learn.microsoft.com/en-us/windows/win32/procthread/process-security-and-access-rights\nauthor: Nasreddine Bencherchali (Nextron Systems), frack113\ndate: 2024-05-27\ntags:\n    - attack.privilege-escalation\n    - attack.stealth\n    - attack.t1055.011\nlogsource:\n    category: process_access\n    product: windows\ndetection:\n    selection:\n        TargetImage|endswith:\n            # Note: Add additional uncommon targets to increase coverage.\n            - '\\calc.exe'\n            - '\\calculator.exe'\n            - '\\mspaint.exe'\n            - '\\notepad.exe'\n            - '\\ping.exe'\n            - '\\wordpad.exe'\n            - '\\write.exe'\n        GrantedAccess: '0x1FFFFF' # PROCESS_ALL_ACCESS - All possible access rights for a process object.\n    condition: selection\nfalsepositives:\n    - Unknown\n# Note: please upgrade to a higher level after an initial test/tuning.\nlevel: low\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1055.011","id":"T1055.011","name":"Extra Window Memory Injection","page":"techniques/enterprise/T1055.011/"}],"data_path":"data/detection-rules/a24e5861-c6ca-4fde-a93c-ba9256feddf0.json","kind":"sigma"}