Sigma Rule Library

Clipboard Collection of Image Data with Xclip Tool

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.

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Detection logic

selection

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

Condition

selection

Raw YAML

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

False positives

  • Legitimate usage of xclip tools

References

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