Powershell MsXml COM Object

Title: Powershell MsXml COM Object
Status: test
Description:Adversaries may abuse PowerShell commands and scripts for execution. PowerShell is a powerful interactive command-line interface and scripting environment included in the Windows operating system. (Citation: TechNet PowerShell) Adversaries can use PowerShell to perform a number of actions, including discovery of information and execution of code
References:
  -https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1059.001/T1059.001.md#atomic-test-7---powershell-msxml-com-object---with-prompt
  -https://learn.microsoft.com/en-us/previous-versions/windows/desktop/ms766431(v=vs.85)
  -https://www.trendmicro.com/en_id/research/22/e/uncovering-a-kingminer-botnet-attack-using-trend-micro-managed-x.html
Author: frack113, MatilJ
Date: 2022-01-19
modified:2022-05-19
Tags:

• -'attack.execution'
• -'attack.t1059.001'

Logsource:

• product: windows
• category: ps_script
• definition: Requirements: Script Block Logging must be enabled

Detection:
  selection:
    ScriptBlockText|contains|all:
      -'New-Object'
      -'-ComObject'
      -'MsXml2.'
      -'XmlHttp'

  condition:selection
Falsepositives:
  -Legitimate administrative script
Level: medium