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PowerShell Suspicious Script with Clipboard Retrieval Capabilities
editPowerShell Suspicious Script with Clipboard Retrieval Capabilities
editDetects PowerShell scripts that can get the contents of the clipboard, which attackers can abuse to retrieve sensitive information like credentials, messages, etc.
Rule type: query
Rule indices:
- winlogbeat-*
- logs-windows.*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Collection
- PowerShell
Version: 1
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editevent.category:process and
(powershell.file.script_block_text : (
"Windows.Clipboard" or
"Windows.Forms.Clipboard" or
"Windows.Forms.TextBox"
) and
powershell.file.script_block_text : (
"]::GetText" or
".Paste()"
)) or powershell.file.script_block_text : "Get-Clipboard"
and not user.id : "S-1-5-18"
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Collection
- ID: TA0009
- Reference URL: https://attack.mitre.org/tactics/TA0009/
-
Technique:
- Name: Clipboard Data
- ID: T1115
- Reference URL: https://attack.mitre.org/techniques/T1115/
-
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/
-
Sub-technique:
- Name: PowerShell
- ID: T1059.001
- Reference URL: https://attack.mitre.org/techniques/T1059/001/