{"id":"e49b5745-1064-4ac1-9a2e-f687bc2dd37e","title":"Potential DLL Sideloading Of Libcurl.DLL Via GUP.EXE","description":"Detects potential DLL sideloading of \"libcurl.dll\" by the \"gup.exe\" process from an uncommon location","author":"Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"medium","date":"2023-05-05","modified":"","tags":["attack.persistence","attack.privilege-escalation","attack.execution","attack.stealth","attack.t1574.001"],"technique_ids":["T1574.001"],"logsource":{"category":"image_load","product":"windows"},"falsepositives":["Unknown"],"references":["https://labs.withsecure.com/publications/fin7-target-veeam-servers"],"source_path":"rules/windows/image_load/image_load_side_load_gup_libcurl.yml","source_sha256":"038dd15e3c182d6999e89fae379ef540e24db2b46cd722eb4e4fd2656fd7253f","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/image_load/image_load_side_load_gup_libcurl.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Potential DLL Sideloading Of Libcurl.DLL Via GUP.EXE\nid: e49b5745-1064-4ac1-9a2e-f687bc2dd37e\nstatus: test\ndescription: Detects potential DLL sideloading of \"libcurl.dll\" by the \"gup.exe\" process from an uncommon location\nreferences:\n    - https://labs.withsecure.com/publications/fin7-target-veeam-servers\nauthor: Nasreddine Bencherchali (Nextron Systems)\ndate: 2023-05-05\ntags:\n    - attack.persistence\n    - attack.privilege-escalation\n    - attack.execution\n    - attack.stealth\n    - attack.t1574.001\nlogsource:\n    category: image_load\n    product: windows\ndetection:\n    selection:\n        Image|endswith: '\\gup.exe'\n        ImageLoaded|endswith: '\\libcurl.dll'\n    filter_main_notepad_plusplus:\n        Image|endswith: '\\Notepad++\\updater\\GUP.exe'\n    condition: selection and not 1 of filter_main_*\nfalsepositives:\n    - Unknown\nlevel: medium\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/e49b5745-1064-4ac1-9a2e-f687bc2dd37e.json","kind":"sigma"}