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Microsoft Security Intelligence
Published Jan 07, 2010 | Updated Sep 15, 2017

Worm:Win32/VB.JB

Detected by Microsoft Defender Antivirus

Aliases: TrojanDropper:Win32/VB.FH (other) W32/Worm.AMXX (Command) Worm/VB.EIC (AVG) Worm.Siggen.185 (Dr.Web) Worm.Win32.VB.xs (Kaspersky) W32/VBWorm.YJO (Norman)

Summary

Worm:Win32/VB.JB is a worm that spreads by copying itself to all local drives. It modifies the local HOSTS file to prevent access of a Russian social networking website "vkontakte.ru".
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.
 
This threat may make lasting changes to an affected system’s configuration that will NOT be restored by detecting and removing this threat. For more information on returning an affected system to its pre-infected state, please see the following article/s:
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