Clipboard Collection of Image Data with Xclip Tool

Description

Detects attempts to collect image data stored in the clipboard from users with the usage of xclip tool. Xclip has to be installed. Highly recommended using rule on servers, due to high usage of clipboard utilities on user workstations.

Query · sigma

selection:
  type: EXECVE
  a0: xclip
  a1:
  - -selection
  - -sel
  a2:
  - clipboard
  - clip
  a3: -t
  a4|startswith: image/
  a5: -o
condition: selection

Known false positives

  • Legitimate usage of xclip tools
Raw source Clipboard Collection of Image Data with Xclip Tool · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Clipboard Collection of Image Data with Xclip Tool
id: f200dc3f-b219-425d-a17e-c38467364816
status: test
description: |
  Detects attempts to collect image data stored in the clipboard from users with the usage of xclip tool.
  Xclip has to be installed.
  Highly recommended using rule on servers, due to high usage of clipboard utilities on user workstations.
references:
    - https://linux.die.net/man/1/xclip
author: 'Pawel Mazur'
date: 2021-10-01
modified: 2022-10-09
tags:
    - attack.collection
    - attack.t1115
logsource:
    product: linux
    service: auditd
detection:
    selection:
        type: EXECVE
        a0: xclip
        a1:
            - '-selection'
            - '-sel'
        a2:
            - clipboard
            - clip
        a3: '-t'
        a4|startswith: 'image/'
        a5: '-o'
    condition: selection
falsepositives:
    - Legitimate usage of xclip tools
level: low

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