PSAsyncShell - Asynchronous TCP Reverse Shell

Description

Detects the use of PSAsyncShell an Asynchronous TCP Reverse Shell written in powershell

Query · sigma

selection:
  ScriptBlockText|contains: PSAsyncShell
condition: selection

Known false positives

  • Unlikely
Raw source PSAsyncShell - Asynchronous TCP Reverse Shell · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: PSAsyncShell - Asynchronous TCP Reverse Shell
id: afd3df04-948d-46f6-ae44-25966c44b97f
status: test
description: Detects the use of PSAsyncShell an Asynchronous TCP Reverse Shell written in powershell
references:
    - https://github.com/JoelGMSec/PSAsyncShell
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-10-04
tags:
    - attack.execution
    - attack.t1059.001
logsource:
    product: windows
    category: ps_script
    definition: 'Requirements: Script Block Logging must be enabled'
detection:
    selection:
        ScriptBlockText|contains: 'PSAsyncShell'
    condition: selection
falsepositives:
    - Unlikely
level: high

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