Virus says "Gotcha you" and "you are in my control" it's from Usb/pen Drive help

[kung fu panda]

Hi guys i inserted my brother's usb/pen drive /stick in to my computer a week before and just after inserting the pen drive a dialogue box or screen appeared which says ''gotcha you" and "you are in my control".

this same virus caused my brother's laptop to go haywire around two months ago.it slowed the whole OS of that laptop like opening media player took like a couple of minutes also the mouse cursor acted weirdly.so i had to format the laptop's hard drive and reinstall XP.

now i am worried this virus slowing my pc down too.but i really don't want to format and reinstall my XP as all my games and programs are installed and finely tuned.

so anybody knows what is name of this virus/Trojan/spy ware(?) and which anti virus software can successfully detect,remove/delete it from my pc?
I already tried AVG free edition but it can't even detect it and again please tell me the name of this virus if you know so that when the right anti virus software detects it i can delete or remove it with certainty.

thanks for reading my big post

[amateur]

Hello and welcome to TSF.

It's not possible to determine the cause of the problem and to assist you without the proper set of logs.

We want all our members to perform the steps outlined in the link given below, before posting for assistance. There's a sticky at the top of this forum, and a

Having problems with spyware and pop-ups? First Steps

link at the top of each page.

Please follow our pre-posting process outlined here:

NEW INSTRUCTIONS - Read This Before Posting For Malware Removal Help

After running through all the steps, you shall have a proper set of logs. Please post them in a new topic, as this one shall be closed.

If you have trouble with one of the steps, simply move on to the next one, and make note of it in your reply.