Win32/Matsnu is malware that can perform certain actions based on instructions from a remote server. It also changes certain computer settings.

Trojan:Win32/Matsnu.F is a malicious program that is unable to spread of its own accord. It may perform a number of actions of an attacker's choice on an affected computer.

Trojan:Win32/Matsnu.gen!A is malware that can perform certain actions based on instructions from a remote server. It also changes certain computer settings.

Trojan:Win32/Matsnu is malware that can perform certain actions based on instructions from a remote server. It also changes certain computer settings.

Trojan:Win32/Matsnu.D is a trojan that makes changes to your computer to leave it in a more vulnerable state, and contacts a remote host to retrieve commands that can have practically any purpose.