UNC4841 - Potential SEASPY Execution

Detects execution of specific named binaries which were used by UNC4841 to deploy their SEASPY backdoor

Detection logic

selection

Image|endswith:
  - /BarracudaMailService
  - /resize2fstab
  - /resize_reisertab

Condition

selection

Raw YAML

title: UNC4841 - Potential SEASPY Execution
id: f6a711f3-d032-4f9e-890b-bbe776236c84
status: test
description: Detects execution of specific named binaries which were used by UNC4841 to deploy their SEASPY backdoor
references:
    - https://www.mandiant.com/resources/blog/barracuda-esg-exploited-globally
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-06-16
tags:
    - attack.execution
    - detection.emerging-threats
logsource:
    product: linux
    category: process_creation
detection:
    selection:
        Image|endswith:
            - '/BarracudaMailService'
            - '/resize2fstab'
            - '/resize_reisertab'
    condition: selection
falsepositives:
    - Unlikely
level: critical

False positives

Unlikely

References

https://www.mandiant.com/resources/blog/barracuda-esg-exploited-globally

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