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The affected versions are:

• For Windows 2003/XP/2000: version 9.0.
• For Windows 2000: version 8.1 and 7.0.

If exploited successfully, MS09-028 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.

This vulnerability is usually exploited by creating a specially crafted QuickTime file and enticing users to open it. This malicious file can be sent via email or hosted in a website.

If you have any of the vulnerable versions of DirectX, it is recommended to download and apply the security patch for this vulnerability. Click here to access the web page for downloading the patch.

Moreover, bear in mind that this bulletin replaces some previous ones, called MS09-011 and MS08-033, depending on the operating system version.