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: 1.32

Type: local

Agent: unix

Family: Backdoors

Published: 6/26/2019

Updated: 5/20/2024

Supported Sensors: Nessus Agent, Nessus

Risk Information

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


Risk Factor: Critical

Base Score: 10

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

CVSS Score Source: manual


Risk Factor: Critical

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