Aliases
Backdoor.IRCBot.gen
Type
Win32 worm
Description
W32/Nackbot-B is a worm which spreads via shared folders.
When run the worm copies itself to the Windows system folder as the file mptcloakxs.exe. To ensure that the worm is run each time Windows is started W32/Nackbot-A creates the following registry entry:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\MP Tcloakss
Read more: http://www.sophos.com/virusinfo/analyses/w32nackbotb.html

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