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Windows Defender detects and removes this threat.
This family of worms can stop some programs from working and download files onto your PC, including other malware.
They spread by copying themselves to network shares and removable drives, such as USB flash drives. They can also spread though instant messages sent via instant messaging clients, such as MSN Messenger.
Use the following free Microsoft software to detect and remove this threat:
You should also run a full scan. A full scan might find other, hidden malware.
Windows has a feature that lets you share files and folders on a network or shared PC. This feature is sometimes abused by malware to spread to other PCs within the network.
You can get more information and tips on how to share files safely from these pages:
You should turn off file sharing until you make sure that all infected PCs have been cleaned of any malware.
This threat might prevent Registry Editor from running. To allow the Registry Editor to run, follow these steps:
This threat might make lasting changes to your PC's settings that won't be restored when it's cleaned. The following links can help change these settings back to what you want:
For other support and help related articles, go to:
Enable the Microsoft Active Protection Service (MAPS) on your system to protect your enterprise software security infrastructure in the cloud.
Check if MAPS is enabled in your Microsoft security product:
Select Settings and then select MAPS.
Select Advanced membership, then click Save changes. With the MAPS option enabled, your Microsoft anti-malware security product can take full advantage of Microsoft's cloud protection service.
If you’re using Windows XP, see our Windows XP end of support page.