Screen Capture with Import Tool

testlow
Log-Quelle: linux · auditdAutor Pawel MazurDatum 2021-09-21
01

Beschreibung

Was dies ist, in Kürze.

Detects adversary creating screen capture of a desktop with Import Tool. Highly recommended using rule on servers, due to high usage of screenshot utilities on user workstations. ImageMagick must be installed.

02

Tags

attack.collectionattack.t1113
03

Regelquelle (YAML)

title: Screen Capture with Import Tool
id: dbe4b9c5-c254-4258-9688-d6af0b7967fd
status: test
description: |
  Detects adversary creating screen capture of a desktop with Import Tool.
  Highly recommended using rule on servers, due to high usage of screenshot utilities on user workstations.
  ImageMagick must be installed.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1113/T1113.md
    - https://linux.die.net/man/1/import
    - https://imagemagick.org/
author: 'Pawel Mazur'
date: 2021-09-21
modified: 2022-10-09
tags:
    - attack.collection
    - attack.t1113
logsource:
    product: linux
    service: auditd
detection:
    import:
        type: EXECVE
        a0: import
    import_window_root:
        a1: '-window'
        a2: 'root'
        a3|endswith:
            - '.png'
            - '.jpg'
            - '.jpeg'
    import_no_window_root:
        a1|endswith:
            - '.png'
            - '.jpg'
            - '.jpeg'
    condition: import and (import_window_root or import_no_window_root)
falsepositives:
    - Legitimate use of screenshot utility
level: low
04

erkennt Techniken (1)

ATT&CK-Techniken, die dies ermöglicht oder abbildet.

05

Referenzen

Externe Belege — Patches, Meldungen, Analysen.