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Trojan PSW.Briss.C

by Nickster / May 30, 2004 6:48 AM PDT

I am stuck. I use Adaware, and AVG free edition. Today I found the above trojan on the computer ( Windows XP Pro ) and am stuck trying to remove it. I can unhide the files, find the one that it tells me is infected ( bridge.dll ) but I cannot delete it. AVG wont heal it. It tells me that the file is in use by a program. I open task manager and close program running but still no luck. I tried Panda scan and Housecall as well. Adaware wont get rid if it either.
I did a google search for it with no luck. I went to the AVG and Panda sites and did a search for Briss.c and PSW.Briss.c but the database comes up empty.
I have gone at this every way I can think of. Usually I am pretty good at getting things like this off my machine but I am stumped. This is driving me nuts!
Help, please. I will have a terrible time sleeping untill this is done.
Patrick AKA Nickster

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Re:Trojan PSW.Briss.C
by R. Proffitt Forum moderator / May 30, 2004 7:25 AM PDT
In reply to: Trojan PSW.Briss.C

Be sure to post this in the Security Forum for best effect and rescue.

Bob

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Re:Trojan PSW.Briss.C
by Grif Thomas Forum moderator / May 30, 2004 10:20 AM PDT
In reply to: Trojan PSW.Briss.C

Nickster,

Here is McAfee's write up about a "Briss Keylogger" trojan that is probably very similar.

Keylog-Briss
http://vil.nai.com/vil/content/v_101058.htm

Here's Trend Micro's write up about a similar one also:

TROJ_BRISS.H
http://www.trendmicro.com/vinfo/virusencyclo/default5.asp?VName=TROJ_BRISS.H

Check the registry entries listed in the articles and remove the offending registry entries. (If it's not exactly as indicated in the article, you still should be able to identify the offending entry by the name of the infected file name.) You might also need to disable the process in Task Manager as indicated in the Trend Micro article. Then temporarily disable System Restore, using the instructions below, then restart the computer into "Safe Mode", then do a full system scan with your antivirus program. Delete any infected files found.

To disable Windows XP System Restore:

1. Click Start.
2. Right-click on the ?My Computer? icon, and then click Properties.
3. Click the "System Restore" tab.
4. Check "Turn off system restore" or "Turn off system restore on all drives". Click on Apply, etc.
__________

How To Start In Safe Mode

Restart the computer, pressing the F8 key once per second, till it loads a selection screen. Use the up and down arrows to select "Safe Mode", press enter, and the computer will load into a safe mode. It looks like a normal screen but with Safe Mode in each of the four corners. When you?re done, restart the machine and it will boot normally.

If for some reason, it still won't delete the infected file, try opening a "command" window in "Safe Mode", then delete it using DOS style commands.

Hope this helps.

Grif

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Re:Trojan PSW.Briss.C
by Willy / May 30, 2004 11:25 AM PDT
In reply to: Trojan PSW.Briss.C

If you know this is a trojan, then get the pgm. called, trojan remover. Google for it, get it, update it and then run it. It a trailware type of pgm. but if you love it, then buy it, but for the time being it will work for 30days, I believe.

good luck -----Willy

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Re:Trojan PSW.Briss.C
by Nickster / May 31, 2004 9:57 AM PDT
In reply to: Trojan PSW.Briss.C

The suggestions were fine but did not help. The file was not in my restore and did not show as a running process. So simple sometimes works. I deleted my AdAware and downloaded a new one with better definitions. It did its thing, by finding the trojan and offering to scan and delete when I rebooted. I said sure thinking I will run it again but no, it came up on its own in what I think was the boot process and sent it packing. I love that program and will buy it just to say thanks.
Thanks to all
Nickster

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