IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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PowerShell Suspicious Script with Screenshot Capabilities

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PowerShell Suspicious Script with Screenshot Capabilities

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Detects PowerShell Scripts that can take screenshots, which is a common feature in post-exploitation kits and RATs (Remote Access Tools).

Rule type: query

Rule indices:

winlogbeat-*
logs-windows.*

Severity: medium

Risk score: 47

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

https://docs.microsoft.com/en-us/dotnet/api/system.drawing.graphics.copyfromscreen

Tags:

Elastic
Host
Windows
Threat Detection
Collection

Version: 1

Added (Elastic Stack release): 8.0.0

Rule authors: Elastic

Rule license: Elastic License v2

Rule query

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event.category:process and powershell.file.script_block_text : (
CopyFromScreen and (System.Drawing.Bitmap or Drawing.Bitmap) )

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Collection
- ID: TA0009
- Reference URL: https://attack.mitre.org/tactics/TA0009/
Technique:
- Name: Screen Capture
- ID: T1113
- Reference URL: https://attack.mitre.org/techniques/T1113/
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
Technique:
- Name: Command and Scripting Interpreter
- ID: T1059
- Reference URL: https://attack.mitre.org/techniques/T1059/

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