Detectionmediumtest

Potential Keylogger Activity

Detects PowerShell scripts that contains reference to keystroke capturing functions

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Launch

Nasreddine Bencherchali (Nextron Systems)Created Wed Jan 04965e2db9-eddb-4cf6-a986-7a967df651e4windows

Log Source

WindowsPowerShell Script

ProductWindows← raw: windows

CategoryPowerShell Script← raw: ps_script

Definition

Requirements: Script Block Logging must be enabled

Detection Logic

detection:
    selection:
        ScriptBlockText|contains: '[Windows.Input.Keyboard]::IsKeyDown([System.Windows.Input.Key]::'
    condition: selection

False Positives

Unknown

False positive likelihood has not been assessed. Additional context may be needed during triage.

References

MITRE ATT&CK

Tactics

TA0009 · Collection TA0006 · Credential Access

Sub-techniques

T1056.001 · Keylogging

Rule Metadata

Rule ID

965e2db9-eddb-4cf6-a986-7a967df651e4

Status

test

Level

medium

Type

Detection

Created

Wed Jan 04

Author

Nasreddine Bencherchali (Nextron Systems)

Path

rules/windows/powershell/powershell_script/posh_ps_susp_keylogger_activity.yml

Raw Tags

attack.collectionattack.credential-accessattack.t1056.001

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