Detectionmediumtest
Powershell XML Execute Command
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
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Log Source
WindowsPowerShell Script
ProductWindows← raw: windows
CategoryPowerShell Script← raw: ps_script
Definition
Requirements: Script Block Logging must be enabled
Detection Logic
Detection Logic2 selectors
detection:
selection_xml:
ScriptBlockText|contains|all:
- 'New-Object'
- 'System.Xml.XmlDocument'
- '.Load'
selection_exec:
ScriptBlockText|contains:
- 'IEX '
- 'Invoke-Expression '
- 'Invoke-Command '
- 'ICM -'
condition: all of selection_*False Positives
Legitimate administrative script
References
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
6c6c6282-7671-4fe9-a0ce-a2dcebdc342b
Status
test
Level
medium
Type
Detection
Created
Wed Jan 19
Modified
Thu Jan 19
Author
Path
rules/windows/powershell/powershell_script/posh_ps_xml_iex.yml
Raw Tags
attack.executionattack.t1059.001