Nasreddine Bencherchali
5656c48a97
chore: rename auditd folders and others update: Audio Capture - Updated syscall field to SYSCALL in order to make use of enriched logs update: ASLR Disabled Via Sysctl or Direct Syscall - Linux - Updated syscall field to SYSCALL in order to make use of enriched logs update: Clear or Disable Kernel Ring Buffer Logs via Syslog Syscall - Updated syscall field to SYSCALL in order to make use of enriched logs update: System Info Discovery via Sysinfo Syscall - Updated syscall field to SYSCALL in order to make use of enriched logs update: Special File Creation via Mknod Syscall - Updated syscall field to SYSCALL in order to make use of enriched logs update: Webshell Remote Command Execution - Updated syscall field to SYSCALL in order to make use of enriched logs
41 lines
1.1 KiB
YAML
41 lines
1.1 KiB
YAML
title: Screen Capture with Import Tool
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id: dbe4b9c5-c254-4258-9688-d6af0b7967fd
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status: test
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description: |
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Detects adversary creating screen capture of a desktop with Import Tool.
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Highly recommended using rule on servers, due to high usage of screenshot utilities on user workstations.
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ImageMagick must be installed.
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references:
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- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1113/T1113.md
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- https://linux.die.net/man/1/import
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- https://imagemagick.org/
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author: 'Pawel Mazur'
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date: 2021-09-21
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modified: 2022-10-09
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tags:
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- attack.collection
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- attack.t1113
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logsource:
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product: linux
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service: auditd
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detection:
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import:
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type: EXECVE
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a0: import
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import_window_root:
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a1: '-window'
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a2: 'root'
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a3|endswith:
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- '.png'
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- '.jpg'
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- '.jpeg'
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import_no_window_root:
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a1|endswith:
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- '.png'
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- '.jpg'
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- '.jpeg'
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condition: import and (import_window_root or import_no_window_root)
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falsepositives:
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- Legitimate use of screenshot utility
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level: low
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