Techniques
Sample rules
Windows ClipBoard Data via Get-ClipBoard
- source: splunk
- technicques:
Description
The following analytic detects the execution of the PowerShell command ‘Get-Clipboard’ to retrieve clipboard data. It leverages PowerShell Script Block Logging (EventCode 4104) to identify instances where this command is used. This activity is significant because it can indicate an attempt to steal sensitive information such as usernames, passwords, or other confidential data copied to the clipboard. If confirmed malicious, this behavior could lead to unauthorized access to sensitive information, potentially compromising user accounts and other critical assets.
Detection logic
`powershell`
EventCode=4104
ScriptBlockText = "*Get-Clipboard*"
| fillnull
| stats count min(_time) as firstTime
max(_time) as lastTime
by dest signature signature_id
user_id vendor_product EventID
Guid Opcode Name
Path ProcessID ScriptBlockId
ScriptBlockText
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
| `windows_clipboard_data_via_get_clipboard_filter`