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.SectorA05 outbound connection attempt

Rule Explanation

This event is generated when command and control communication related to SectorA05 Operation Kitty Phishing is detected. Impact: A Remote Administration Tool was detected Details: Operation Kitty Phishing was a spear phishing campaign in which an executable file masquerading as a Hangul Word Processor file was sent to reporter covering topics related to the Unification Ministry of South Korea. This executable file dropped two script-based Remote Administration Tools, "2.wsf" and "3.wsf". "2.wsf" attempts to connect to command and control servers identified via a Google Doc and then download, decrypt and execute "Freedom.dll" malware. Ease of Attack:

What To Look For

No information provided

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

Rule Groups

No rule groups

CVE

None

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.

None