Linux Malicious File Detection: User Defined Malware

Critical Nessus Plugin ID 126259


Nessus detected potentially unwanted files on the remote host.


The checksum of one or more files on the remote Linux host matches one of the signatures provided using the 'Provide your own list of known bad hashes' preference (found under the 'Hash and Whitelist Files' section) in the scan policy.

Note that Nessus has only scanned Linux executable binaries and libraries.


Uninstall the remote software if it does not match your security policy, and investigate your network for further signs of a breach.

Plugin Details

Severity: Critical

ID: 126259

File Name: linux_malware_user_filescan.nbin

Version: 1.4

Type: local

Agent: unix

Family: Backdoors

Published: 2019/06/26

Updated: 2020/02/26

Dependencies: 126258

Risk Information

Risk Factor: Critical

CVSS Score Source: manual

CVSS Score Rationale: The detection is suspected as being malware.

CVSS v2.0

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS v3.0

Base Score: 10

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Vulnerability Information

Required KB Items: malware/linux/custom