Disable Or Stop Services

calendar Oct 17, 2023 · attack.defense_evasion  ·
Share on: linkedin copy

Detects the usage of utilities such as 'systemctl', 'service'...etc to stop or disable tools and services

Sigma rule (View on GitHub)

 1title: Disable Or Stop Services
 2id: de25eeb8-3655-4643-ac3a-b662d3f26b6b
 3status: test
 4description: Detects the usage of utilities such as 'systemctl', 'service'...etc to stop or disable tools and services
 5references:
 6    - https://www.trendmicro.com/pl_pl/research/20/i/the-evolution-of-malicious-shell-scripts.html
 7author: Nasreddine Bencherchali (Nextron Systems)
 8date: 2022/09/15
 9tags:
10    - attack.defense_evasion
11logsource:
12    category: process_creation
13    product: linux
14detection:
15    selection:
16        Image|endswith:
17            - '/service'
18            - '/systemctl'
19            - '/chkconfig'
20        CommandLine|contains:
21            - 'stop'
22            - 'disable'
23    condition: selection
24falsepositives:
25    - Legitimate administration activities
26level: medium

References

  • The Evolution of Malicious Shell Scripts

    Plain text links were replaced with Base64-encoded text, while some of the code chunks were downloaded or encoded payloads. This is likely done to hide direct payload links, evade security rules us...


    Read More

Related rules

to-top