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Detection and Removal of the Syslogk Rootkit in a Linux Environment

ID: 5444e4d0-37ca-5d3a-ba8d-98f087f19fe4

STIX ID: report--5444e4d0-37ca-5d3a-ba8d-98f087f19fe4

Feed Name: ASEC

Threat Score
75/100

Date Published: 2026-09-02

Date Updated: 2026-09-10

Author: ATCP

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**Executive Summary:** This ASEC analysis documents the Syslogk Linux kernel rootkit: it performs inline hooking of proc_root_readdir and tcp4_seq_show to hide processes and TCP sockets, modifies VFS readdir to conceal files containing the string "was-patch", and removes its module and sysfs entries to hide the LKM; the report includes detection/remediation steps (V3 Net for Linux Server) and an MD5 indicator (8433c3f870729889f4b9712e26fe2fc8).

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