{"id":"0a4f6091-223b-41f6-8743-f322ec84930b","title":"Suspicious GUP Usage","description":"Detects execution of the Notepad++ updater in a suspicious directory, which is often used in DLL side-loading attacks","author":"Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2019-02-06","modified":"2022-08-13","tags":["attack.privilege-escalation","attack.persistence","attack.execution","attack.stealth","attack.t1574.001"],"technique_ids":["T1574.001"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Execution of tools named GUP.exe and located in folders different than Notepad++\\updater"],"references":["https://www.fireeye.com/blog/threat-research/2018/09/apt10-targeting-japanese-corporations-using-updated-ttps.html"],"source_path":"rules/windows/process_creation/proc_creation_win_gup_suspicious_execution.yml","source_sha256":"58f7f1c972cf58836122827cf77a192d4ed67bd63bf66b140110cf6d426d21bd","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_gup_suspicious_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: Suspicious GUP Usage\nid: 0a4f6091-223b-41f6-8743-f322ec84930b\nstatus: test\ndescription: Detects execution of the Notepad++ updater in a suspicious directory, which is often used in DLL side-loading attacks\nreferences:\n    - https://www.fireeye.com/blog/threat-research/2018/09/apt10-targeting-japanese-corporations-using-updated-ttps.html\nauthor: Florian Roth (Nextron Systems)\ndate: 2019-02-06\nmodified: 2022-08-13\ntags:\n    - attack.privilege-escalation\n    - attack.persistence\n    - attack.execution\n    - attack.stealth\n    - attack.t1574.001\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        Image|endswith: '\\GUP.exe'\n    filter_programfiles:\n        Image|endswith:\n            - '\\Program Files\\Notepad++\\updater\\GUP.exe'\n            - '\\Program Files (x86)\\Notepad++\\updater\\GUP.exe'\n    filter_user:\n        Image|contains: '\\Users\\'\n        Image|endswith:\n            - '\\AppData\\Local\\Notepad++\\updater\\GUP.exe'\n            - '\\AppData\\Roaming\\Notepad++\\updater\\GUP.exe'\n    condition: selection and not 1 of filter_*\nfalsepositives:\n    - Execution of tools named GUP.exe and located in folders different than Notepad++\\updater\nlevel: high\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/0a4f6091-223b-41f6-8743-f322ec84930b.json","kind":"sigma"}