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Published Feb 02, 2010 | Updated Sep 15, 2017

Worm:Win32/PrettyPark.B@mm

Detected by Microsoft Defender Antivirus

Aliases: I-Worm/PrettyPark.60928 (AhnLab) W32/PrettyPark.60928 (Command) I-Worm/Pretty_Park (AVG) I-Worm.Prettypark (BitDefender) Win32.HLLW.PrettyPark (Dr.Web) Win32/PrettyPark.B (ESET) PrettyPark.51433 (Frisk (F-Prot)) Email-Worm.Win32.PrettyPark (Kaspersky) W32/Pretty.gen@MM (McAfee) PrettyPark.60928 (Norman) Trojan.PrettyPark (other) W32/Pretty (Sophos) W32.PrettyPark.Gen (Symantec) WORM_PRETTYPARK (Trend Micro) I-Worm.PrettyPark.A1 (VirusBuster) South Park trojan (other)

Summary

Worm:Win32/PrettyPark.B@mm is a worm that spreads via e-mail attachments. It allows backdoor access and control of an infected computer.
Manual removal is not recommended for this threat. To detect and remove this threat and other malicious software that may have been installed, run a full-system scan with an up-to-date antivirus product such as Microsoft Security Essentials, or the Microsoft Safety Scanner. For more information about using antivirus software, see http://www.microsoft.com/security/antivirus/av.aspx.
Additional recovery steps
IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
322756 How to back up and restore the registry in Windows
 
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
 
To remove/modify the changes that Worm:Win32/PrettyPark.B@mm has made to your computer, follow these steps:
 
1) Click Start and then click Run.
2) In the Open box, type regedit and then click OK.
3) Locate and then click on the following registry key:
HKCR\exefile\shell\open\command
4) On the right panel, right-click on the following registry entry and select Modify:
(default)
5) Under Value Data, delete the following string:
files32.vxd
such that the Value Data contains the following remaining string:
""%1" %*"
6) Click OK.
7) Close Registry Editor.
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