Many people are facing a common problem, where Orkut.com, YouTube.com and Firefox are blocked in their systems and they get following error with a scary laughing sound:
ORKUT IS BANNED
Orkut is banned you fool, The administrators didnt write this program guess who did??
MUHAHAHA!!
Following is a screenshot of the message:

So here I'm posting a detailed procedure to solve this problem.
It happens because of "Heap41a / win32.USBworm" which spreads through USB pen drives and removable storage devices. I'll tell you a simple method to remove the virus:
1. Open "Task Manager" and goto "Processes" tab.
2. Look for services with name "svchost.exe". There will be many services with the same name. Most of them will have "SYSTEM", "LOCAL SERVICE" OR "NETWORK SERVICE" as User Name but you have to look for "svchost.exe" service which has your currently logged in username as User Name.
3. You'll get approx. 2 services with the name "svchost.exe" which has your Windows username. End Task them by pressing <Delete> key or by selecting them and clicking on "End Process" button. It'll confirm the action, accept it.
4. Now open "regedit" from RUN and go to following keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Current Version\Run
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Current Version\Policies\Explorer\Run
And look for a key in right-side pane with the name "Winlogon" which will have "heap41a\svchost.exe" in its value field. If you find this key, delete it.
5. Now go to following key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Current Version\explorer\Advanced\Folder\Hidden\SHOWALL
And in right-side pane, change value of "CheckedValue" to 1
6. Now enable "Show Hidden Files/Folders" option in "Tools -> Folder Options" in My Computer.
7. Right-click on Start button and select "Open". Now open "Programs" folder, here you'll see a folder "Startup". Open it and if you get a hidden file there, delete it. If its not there, then close it.
8. At last open "My Computer" and open C: drive. Disable "Hide Protected System files" option in "Tools -> Folder Options". You'll see a folder "heap41a" in C: drive. Delete it.
That's it. After doing all this, restart your system and you'll get rid of the virus.
PS: Don't forget to format your pen drive or removable storage media which caused this virus infection because it would still contain the virus. If you don't want to format it, then delete following 2 files from pen drive:
microsoftpowerpoint.exe
autorun.inf
This article was posted by VG in following section: Troubleshooting, Windows 7, Windows Vista, Windows XP.
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VG
^^ Try to open "m.orkut.com" from your cell phone.
Rajesh Gowda
Thanks for the quick-fix man, the virus was a real head-ache!
Gawd bless ya!
gautam
Hi....whats up.
plz join us
gautam
plz reply
Pankaj Gupta
This method is really good.
But one question i would like to ask to what to do if it is actually Banned By System Admin.
Thank You
VG
^^ Then you can't do anything. You can try proxy sites to open them.
amit
cooooooooooooool thanx a lot dear
its really appreciableeeeeeeeeeeeeeeeeeeeeee
bhagwan tumahri manokamna puran kare
VIshal
Hey Vishal good work man...keep it up. I've a serious problem with my pen drive.Whenever I insert my pen drive it gets detected as "Removable Disk" and when I try to open it..it says "please insert a disk into drive"...I tried in different pcs same error is shown..it would be very nice if u reply to my query ASAP.
VG
^^ Try to format the drive.
Vishal
Hey it's not even getting detected in the boot menu dude..when I try to format it..it says again the same thing "please insert a disk into drive".