{"id":"afd3df04-948d-46f6-ae44-25966c44b97f","title":"PSAsyncShell - Asynchronous TCP Reverse Shell","description":"Detects the use of PSAsyncShell an Asynchronous TCP Reverse Shell written in powershell","author":"Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"high","date":"2022-10-04","modified":"","tags":["attack.execution","attack.t1059.001"],"technique_ids":["T1059.001"],"logsource":{"product":"windows","category":"ps_script","definition":"Requirements: Script Block Logging must be enabled"},"falsepositives":["Unlikely"],"references":["https://github.com/JoelGMSec/PSAsyncShell"],"source_path":"rules/windows/powershell/powershell_script/posh_ps_psasyncshell.yml","source_sha256":"d21602ccedf6363357ad8f9d44d8ed0eaccea1a47bca29bb2e51e442688a8eb8","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/powershell/powershell_script/posh_ps_psasyncshell.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: PSAsyncShell - Asynchronous TCP Reverse Shell\nid: afd3df04-948d-46f6-ae44-25966c44b97f\nstatus: test\ndescription: Detects the use of PSAsyncShell an Asynchronous TCP Reverse Shell written in powershell\nreferences:\n    - https://github.com/JoelGMSec/PSAsyncShell\nauthor: Nasreddine Bencherchali (Nextron Systems)\ndate: 2022-10-04\ntags:\n    - attack.execution\n    - attack.t1059.001\nlogsource:\n    product: windows\n    category: ps_script\n    definition: 'Requirements: Script Block Logging must be enabled'\ndetection:\n    selection:\n        ScriptBlockText|contains: 'PSAsyncShell'\n    condition: selection\nfalsepositives:\n    - Unlikely\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1059.001","id":"T1059.001","name":"PowerShell","page":"techniques/enterprise/T1059.001/"}],"data_path":"data/detection-rules/afd3df04-948d-46f6-ae44-25966c44b97f.json","kind":"sigma"}