MS05-002 is not categorized as virus, worm, Trojan or backdoor. It is a critical vulnerability in Windows 2003/XP/2000/NT/Me/98 computers, which allows to remotely execute arbitrary code in the vulnerable computer. Windows XP with Service Pack 2 is not affected.
If exploited successfully, MS05-002 allows hackers to gain remote control of the affected computer with the same privileges as the logged-on user. If this user had administrator rights, the hacker could take complete control of the system: create, modify or delete files, install programs, create new user accounts, etc.
MS05-002 is exploited by hosting a specially crafted cursor or icon file in a malicious web page, and enticing users into accessing it. An e-mail message in HTML format could also be used.
If you have a Windows 2003/XP/2000/NT/Me/98 computer, it is recommendable to download and apply the security patch for this vulnerability. Click here to access the web page for downloading the patch. This patch replaces the one provided in the Microsoft bulletin MS03-045.