Rule Document 1:66841

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 Win.Trojan.msaRAT variant communication

Rule Explanation

This rule looks for an HTTP request conforming to the pattern of msaRAT C2 messages.

What To Look For

This rule looks for a connection attempt made by a computer infected with the msaRAT trojan.

Known Usage

Attacks/Scans seen in the wild

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group