Pc slow after cleaning trojanhorse backdoor

This forum is for malware removal assistance, not system optimization.

It's quite possible you're still infected....

The first step for us would be to see if it's truly gone, by reviewing a HijackThis log.

Please download HijackThis to your desktop - this program will help us determine if there are any spyware/malware on your computer. Double-click on the file you just downloaded.
Click on the "Unzip" button to install. It will by default install to the directory - C:\PROGRAM FILES\HIJACKTHIS\

Double click on HijackThis.exe to run the program.

1. If it gives you an intro screen, just choose 'Do a system scan and save a logfile'.
2. If you don't get the intro screen, just hit Scan and then click on Save log.
3. Post the hijackthis.log file here. Do not fix anything in HijackThis since they may be harmless.

hijack log

This is the hijack log..


Logfile of HijackThis v1.99.1
Scan saved at 12:00:26 PM, on 12/14/2006
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\WINNT\System32\svchost.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\Explorer.EXE
C:\WINNT\system32\wuauclt.exe
C:\PROGRA~1\Yahoo!\MESSEN~1\ymsgr_tray.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\DAP\DAP.EXE
C:\Program Files\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,SearchAssistant = http://in.rediff.com/index.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://in.rediff.com/index.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://in.rediff.com/index.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://in.rediff.com/index.html
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [LoadQM] loadqm.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKCU\..\Run: [Yahoo! Pager] "C:\PROGRA~1\Yahoo!\MESSEN~1\YAHOOM~1.EXE" -quiet
O8 - Extra context menu item: &Clean Traces - C:\Program Files\DAP\Privacy Package\dapcleanerie.htm
O8 - Extra context menu item: &Download with &DAP - C:\Program Files\DAP\dapextie.htm
O8 - Extra context menu item: Download &all with DAP - C:\Program Files\DAP\dapextie2.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O9 - Extra button: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://download.bitdefender.com/resources/scan8/oscan8.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{D98D0077-F090-4C77-BE7F-704D1ACF6EFC}: NameServer = 203.192.192.22 203.192.195.18
O20 - Winlogon Notify: WRNotifier - WRLogonNTF.dll (file missing)
O23 - Service: Logical Disk Manager Administrative Service (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe

Pls let me know,if there is any problem.
Thanks
Kumar

Your HJT log is clean, but it also shows you have no Anti-Virus program.

Let's do a bit of work....

Please download ATF Cleaner by Atribune.
This program is for XP and Windows 2000 only

• 
  Double-click ATF-Cleaner.exe to run the program.
  Under Main choose: Select All
  Click the Empty Selected button.

If you use Firefox browser

• Click Firefox at the top and choose: Select All
  Click the Empty Selected button.
  NOTE: If you would like to keep your saved passwords, please click No at the prompt.

If you use Opera browser

• Click Opera at the top and choose: Select All
  Click the Empty Selected button.
  NOTE: If you would like to keep your saved passwords, please click No at the prompt.

Click Exit on the Main menu to close the program.
For Technical Support, double-click the e-mail address located at the bottom of each menu.

I see no evidence of an AntiVirus program on your system. This must be resolved. Connecting to the Internet without antivirus protection is a "Welcome" doormat for malware. It can take as little as eight seconds to infect an unprotected computer.

Please download and install this excellent and FREE anti-virus program:

Please download Active Virus Shield (powered by Kaspersky) and save it to your desktop.

• Please remember to register for your Activation Code using a legitimate email address.
• Double-click avs.msi to run the installer, but please uncheck "Install Security Toolbar" during the installation process:
  
  
  
  
  
  
  
• Then please update the program and run a systemwide scan. Allow it to neutralize all that it finds.
• When done, launch Active Virus Shield's main window.
  
  
  
  
  
  
  
• Click the Scan button on the left, and then click Detected.
  
  
  
  
  
  
  
• In the ensuing window, click the Save As button to save a copy of the log.
• Copy and paste that log in your next reply.

Note: You must only use 1 (one) AV at a time because if you have 2 or more AVs running at the same time, they will conflict with each other and make your security less reliable.

You don't seem to have a firewall program installed. Using a firewall will allow you to give/deny access for applications that want to go online. Select one of these, or another of your choice:

• Comodo Personal Firewall
• ZoneAlarm
• Tiny Personal Firewall
• OutPost Firewall

.

I see you have the ActiveX for Bitdefender installed. Please run a new scan and post the results.

Go here and do the BitDefender online virus scan.

• Click "I Agree" to agree to the EULA.
• Allow the ActiveX control to install when prompted.
• Leave the scanning options at default and press "Click here to scan" to begin the scan.
• Please refrain from using the computer until the scan is finished.
• When the scan is finished, click on "Click here to export the scan results"
• Save the report to your desktop then come back here and post it in your next reply.

Also post a new HijackThis log.