sigmalowHunting

System Drawing DLL Load

Detects processes loading "System.Drawing.ni.dll". This could be an indicator of potential Screen Capture.

MITRE ATT&CK

collection

Detection Query

selection:
  ImageLoaded|endswith: \System.Drawing.ni.dll
condition: selection

Author

Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)

Created

2020-05-02

Data Sources

windowsImage Load Events

Platforms

windows

References

Tags

attack.collectionattack.t1113detection.threat-hunting

Raw Content

title: System Drawing DLL Load
id: 666ecfc7-229d-42b8-821e-1a8f8cb7057c
status: test
description: Detects processes loading "System.Drawing.ni.dll". This could be an indicator of potential Screen Capture.
references:
    - https://github.com/OTRF/detection-hackathon-apt29/issues/16
    - https://github.com/OTRF/ThreatHunter-Playbook/blob/2d4257f630f4c9770f78d0c1df059f891ffc3fec/docs/evals/apt29/detections/7.A.1_3B4E5808-3C71-406A-B181-17B0CE3178C9.md
author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
date: 2020-05-02
modified: 2023-02-22
tags:
    - attack.collection
    - attack.t1113
    - detection.threat-hunting
logsource:
    product: windows
    category: image_load
detection:
    selection:
        ImageLoaded|endswith: '\System.Drawing.ni.dll'
    condition: selection
falsepositives:
    - False positives are very common from system and third party applications, activity needs to be investigated. This rule is best correlated with other events to increase the level of suspiciousness
level: low