Welcome to the Virus Encyclopedia of Panda Security.
MS10-049 is not categorized as virus, worm, Trojan or backdoor. It is a group of critical vulnerabilities in the SChannel on Windows 2008/7/Vista/2003/XP, which allows arbitrary code to be remotely executed and spoofing.
The SChannel is part of the security package that helps provide an authentication service to provide secure communications between client and server.
The addressed vulnerabilities are:
If you have a Windows 2008/7/Vista/2003/XP, it is recommended to download and apply the security patch for this vulnerability. Click here to access the web page for downloading the patch.