{"id":"43103702-5886-11ed-9b6a-0242ac120002","title":"Suspicious Vsls-Agent Command With AgentExtensionPath Load","description":"Detects Microsoft Visual Studio vsls-agent.exe lolbin execution with a suspicious library load using the --agentExtensionPath parameter","author":"bohops","status":"test","level":"medium","date":"2022-10-30","modified":"","tags":["attack.stealth","attack.t1218"],"technique_ids":["T1218"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["False positives depend on custom use of vsls-agent.exe"],"references":["https://twitter.com/bohops/status/1583916360404729857"],"source_path":"rules/windows/process_creation/proc_creation_win_vslsagent_agentextensionpath_load.yml","source_sha256":"44b00f4ffa9a93db21bc72ce6e29b37ce5c92bab4a5f815fa40a3cd09dc7f2cf","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_vslsagent_agentextensionpath_load.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 Vsls-Agent Command With AgentExtensionPath Load\nid: 43103702-5886-11ed-9b6a-0242ac120002\nstatus: test\ndescription: Detects Microsoft Visual Studio vsls-agent.exe lolbin execution with a suspicious library load using the --agentExtensionPath parameter\nreferences:\n    - https://twitter.com/bohops/status/1583916360404729857\nauthor: bohops\ndate: 2022-10-30\ntags:\n    - attack.stealth\n    - attack.t1218\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        Image|endswith: '\\vsls-agent.exe'\n        CommandLine|contains: '--agentExtensionPath'\n    filter:\n        CommandLine|contains: 'Microsoft.VisualStudio.LiveShare.Agent.'\n    condition: selection and not filter\nfalsepositives:\n    - False positives depend on custom use of vsls-agent.exe\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/43103702-5886-11ed-9b6a-0242ac120002.json","kind":"sigma"}