{"id":"dddfebae-c46f-439c-af7a-fdb6bde90218","title":"SyncAppvPublishingServer Execution to Bypass Powershell Restriction","description":"Detects SyncAppvPublishingServer process execution which usually utilized by adversaries to bypass PowerShell execution restrictions.","author":"Ensar Şamil, @sblmsrsn, OSCD Community","status":"test","level":"medium","date":"2020-10-05","modified":"2022-12-25","tags":["attack.stealth","attack.t1218"],"technique_ids":["T1218"],"logsource":{"product":"windows","category":"ps_script","definition":"Requirements: Script Block Logging must be enabled"},"falsepositives":["App-V clients"],"references":["https://lolbas-project.github.io/lolbas/Binaries/Syncappvpublishingserver/"],"source_path":"rules/windows/powershell/powershell_script/posh_ps_syncappvpublishingserver_exe.yml","source_sha256":"682118f1317ad09783c5d5e05f985248b9a03bb84a9f6d3eda1bb3881292b2b6","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/powershell/powershell_script/posh_ps_syncappvpublishingserver_exe.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: SyncAppvPublishingServer Execution to Bypass Powershell Restriction\nid: dddfebae-c46f-439c-af7a-fdb6bde90218\nrelated:\n    - id: fde7929d-8beb-4a4c-b922-be9974671667\n      type: derived\n    - id: 9f7aa113-9da6-4a8d-907c-5f1a4b908299\n      type: derived\nstatus: test\ndescription: Detects SyncAppvPublishingServer process execution which usually utilized by adversaries to bypass PowerShell execution restrictions.\nreferences:\n    - https://lolbas-project.github.io/lolbas/Binaries/Syncappvpublishingserver/\nauthor: 'Ensar Şamil, @sblmsrsn, OSCD Community'\ndate: 2020-10-05\nmodified: 2022-12-25\ntags:\n    - attack.stealth\n    - attack.t1218\nlogsource:\n    product: windows\n    category: ps_script\n    definition: 'Requirements: Script Block Logging must be enabled'\ndetection:\n    selection:\n        ScriptBlockText|contains: 'SyncAppvPublishingServer.exe'\n    condition: selection\nfalsepositives:\n    - App-V clients\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1218","id":"T1218","name":"System Binary Proxy Execution","page":"techniques/enterprise/T1218/"}],"data_path":"data/detection-rules/dddfebae-c46f-439c-af7a-fdb6bde90218.json","kind":"sigma"}