the best way to be relieved by these malwares is-

1> open your task manager
2>check out if these processes are running
smss.exe
killer.exe
svchost.exe(three times)
lsass.exe
3>just download these useful antivirus and registry cleaners
a>spyware terminator 2.1(
http://www.spywareterminator.com
b>regcure 1.5(i've downloaded it from limewire)
c>spybot search and destroy(
http://www.freedownloadsspace.com
these are for permanent security from these viruses
or
you can simply download these top-rated antivirus
1 avira antivir with utilities(http://www.free-av.com)
2 kaspersky 7(
http://www.freedownloadsplace.com
i hope you will send me a positive reply