Rule Category

MALWARE-CNC -- Snort has detected a Comand and Control (CNC) rule violation, most likely for commands and calls for files or other stages from the control server. The alert indicates a host has been infiltrated by an attacker, who is using the host to make calls for files, as a call-home vector for other malware-infected networks, for shuttling traffic back to bot owners, etc.

Alert Message

MALWARE-CNC Embedded.Exploit.Hoaxcalls variant outbound connection

Rule Explanation

This rule looks for a User-Agent header commonly used by the Hoaxcalls botnet.

What To Look For

This rule fires upon outbound requests that indicate infection by the Hoaxcalls botnet.

Known Usage

No public information

False Positives

No known false positives


Cisco Talos Intelligence Group

Rule Groups

No rule groups



Additional Links

Rule Vulnerability

No information provided

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.


MITRE ATT&CK Framework

Tactic: Command and Control

Technique: Web Service

For reference, see the MITRE ATT&CK vulnerability types here: