What is Trojan horse downloader.Keenval.C and B

Question

My system has a virus called: Trojan horse Downloader.Keenval.C and B can you advise?

Answer

This question was answered on August 16, 2004. Much of the information contained herein may have changed since posting.

If you’re antivirus software has found this Trojan programs running in your system and they

cannot get them of try turning off the system restore feature in windows xp here how.

Turn off System Restore

To turn off System Restore, follow these steps:

1. Click Start, right-click My Computer, and then click Properties

2. Click the System Restore tab

3. Select the Turn off System Restore check box (or the Turn off System Restore on all drives check box), and then click OK

4. Click Yes when you receive the prompt to the turn off System Restore.

Turn on System Restore

To turn on System Restore, follow these steps:

1. Click Start, right-click My Computer, and then click Properties

2. Click the System Restore tab

3. Clear the Turn off System Restore check box (or the Turn off System Restore on all drives

check box), and then click OK.

What happen is that the Trojan get deleted but they leave registry line that after restarting they go into system restore and restore them self.

I have given you both turned off and turn on because after you delete this Trojan you’ll need to start that service again

Re-run your antivirus software oh and make sure to update the antivirus definition on it Also try it in safe mode If that fails try this to.

this part is the manual way.

All Trojan horses are hidden files so you would need to go to the Files Option (click

the View tab)at Control Panel and uncheck both the *Hide file extension for known

file types & *Hide protected operating system files (Recommended) boxes, then OK yourself out You will then need to restart your computer and go into Safe Mode by holding the F8 key down -(kind of at the beginning of boot up) When you're at the Desktop screen go to Start/ Search/ For Files and Folders and type up the NAME OF THE FILE & EXT which would have shown up on your Anti-Virus software, you can delete this file from here Also, make sure to empty your Recycle Bin

I hope this helps Good Luck and try updating your antivirus software and make sure that your antivirus sofrtware has a auto detect feature it help with trojan.

Need Help with this Issue?

We help people with technology! It's what we do.
Schedule an Appointment with a location for help!

Author

Posted by robert of Katharine Gibbs School - New York on August 16, 2004