Active Outbound Connection to Host Listed in Known Bot Database

critical Nessus Plugin ID 58430
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The remote host is making an outbound connection to a host that is listed as part of a botnet, according to a third-party public database.


This plugin has been temporarily disabled.

Nessus has determined via netstat, that the remote host has an outbound connection to one or more hosts that are listed in a public database as part of a botnet. This suggests the host may have been compromised.


Investigate the connection(s) and reinstall the remote system from scratch if appropriate.

Plugin Details

Severity: Critical

ID: 58430

File Name: ipthreat_lookup_netstat.nbin

Version: 1.63

Type: reputation

Agent: windows, macosx, unix

Family: General

Published: 3/22/2012

Updated: 7/12/2021

Dependencies: netstat_parse.nasl

Risk Information


Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

Temporal Vector: E:U/RL:OF/RC:C


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

Exploit Ease: No known exploits are available