My friend has avast 4.6 home (free) edition and was recently infected with Smitfraud Trojan. I’ve tried to walk him through some removal methods posted on several nerd forums but they require 7-8 tools, logs, safe boots etc. and he barely knows what a desktop is. We’ve managed to clean out nvctrl.exe but the lingering mssearchnet.exe is still rearing its ugly head. He’s too far for me to drive over to help so we’re waiting for Avast to develop a cleaner tool for this little gem. Any idea if this is being worked on and when it may become available? His boot time scan seems to identify the Trojan but is unable to delete or clean it up.
Hi and welcome,
here,s a link to some history on this problem
http://forum.avast.com/index.php?topic=17172.msg146420#msg146420 pay particular attention to the smitrem.exe reccomended by noahdfear as it appears to be the one click remedy you are searching for.
good luck 
I don’t think a trojan could be cleaned as it, generally, is not an infected file.
To avoid recurring infection, a good thing is disable System Restore, boot, enable it again. If you find a virus keeps coming back after you delete it, it’s most probably infected the System Restore folder, the best way to solve this is to disable System Restore, reboot your machine and then enable it again. After all, run a full avast! scanning. Enable/Disable System restore on Windows XP: http://support.microsoft.com/default.aspx?scid=kb;[LN];310405
Other think is deleting temporary Internet files, caches, recycle bin, etc.
Tech, there are some things avast! can’t remove, even with a boot time scan. The SmitFraud Trojan is one. Also the Look2Me infection, and of course, FU type rootkits. Deleting system restore files and temp files is not going to help, unfortunately.
To rid your friend of Smitfraud & mssearchnet the need of
advise from antiSPYWARE Experts are needed; I don’t
know what the several “nerd forums” told you, however,
the experts in the PC Protection forum on
www.freedomlist.com are ALWAYS using the latest,
updated “tools” and the least amount necessary, so I
would encourage you to give them a try .
Thanks everyone for the help. I’ve already had him shut down restore, sent him Noahdfear’s smitrem.exe and a walkthrough for how to safe boot and cleanup then I’ll run his hijackthis log through the analysis site.
It would be nice if antivirus and anti-malware/adware could combat these infections in a single user friendly piece of software. I know Avast is great for most attacks and I recommend it to everyone. I’ll follow up with the results when available and thanks again people.