I tried SpyCatcher. You can try this link: http://www.allianceweb.sk/free-download/spycatcher-download.php
This is trial verson for 15 days, but it removes all the spywares that finds on your computer.
Trojan downloader is I think spyware so get spyware doctor or a strong antivirus.
The spyware program 'PestPatrol' will remove it.
How do I get rid of this Virus?
try free antivirus software AVG
virus virus
http://www.ca.com/us/securityadvisor/virusinfo/virus.aspx?ID=62504
I found this downloader on my computer when I ran the new (beta) Microsoft spyware program. It found it, it got rid of it. Had no problem running it. NO problems with computer or other software. It can be found on the Microsoft site: microsoft.com
purity scan ac - http://www.symantec.com/security_response/writeup.jsp?docid=2003-090516-2325-99&tabid=3
AVG for windows seems to get rid of the downloader, but sometimes it comes back. i personally don't thonk you can get rid of them uless you are willing to do a full system restore. good luck!
Go here for a free virus scan and removal. Be patient, this is a very in depth scan and takes awhile. http://www.pandasoftware.com/activescan/com/default.asp?
Have you checked at the AVG website? They have some separate programs you can download for these trojeans their regular anti virus program wont get rid of.
There are many sites that can guide you on this. One of my recommendations; http://wiki.castlecops.com/Malware_Removal_and_Prevention:_Introduction