Code Injection by ld.so Preload

calendar Feb 1, 2023 · attack.persistence attack.privilege_escalation attack.t1574.006  ·
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Detects the ld.so preload persistence file. See man ld.so for more information.

Sigma rule (View on GitHub)

 1title: Code Injection by ld.so Preload
 2id: 7e3c4651-c347-40c4-b1d4-d48590fdf684
 3status: test
 4description: Detects the ld.so preload persistence file. See `man ld.so` for more information.
 5references:
 6    - https://man7.org/linux/man-pages/man8/ld.so.8.html
 7author: Christian Burkard (Nextron Systems)
 8date: 2021/05/05
 9modified: 2022/10/09
10tags:
11    - attack.persistence
12    - attack.privilege_escalation
13    - attack.t1574.006
14logsource:
15    product: linux
16detection:
17    keywords:
18        - '/etc/ld.so.preload'
19    condition: keywords
20falsepositives:
21    - Rare temporary workaround for library misconfiguration
22level: high

References

  • ld.so(8) - Linux manual page

    ld.so(8) — Linux manual page ld.so(8) System Manager's Manual ld.so(8) NAME         top ld.so, ld-linux.so - dynamic linker/loader SYNOPSIS         top The dynamic linker can be run either indirect...


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