About the best thing you can do for that pc is to reformat it. We can have a go at cleaning it, but no promises as it is pretty seriously compromised.
====
Please go here & install ALL critical updates required for your system, including service pack 1a for both XP and IE6.
Most malware is designed to attack unpatched XP systems - exploiting the available 'holes' - and can bypass third-party protection on an unpatched system. The most that can be done with an unpatched system is put a temporary bandage on it. Your system can potentially be reinfected within minutes of cleaning it.
=======
Download Malwarebytes' Anti-Malware ( http://www.majorgeeks.com/Malwarebytes_Anti-Malware_d5756.html ) to your desktop.
* Double-click mbam-setup.exe and follow the prompts to install the program.
* At the end, be sure to checkmark the Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish.
* If an update is found, it will download and install the latest version.
* Once the program has loaded, select Perform full scan, then click Scan.
* When the scan is complete, click OK, then Show Results to view the results.
* Be sure that everything is checked, and click Remove Selected.
* When completed, a log will open in Notepad.
* Post the log back here.
Make sure that you restart the computer.
The log can also be found here:
C:\Documents and Settings\Username\Application Data\Malwarebytes\Malwarebytes' Anti-Malware\Logs\log-date.txt
Or at C:\Program Files\Malwarebytes' Anti-Malware\Logs\log-date.txt
==============
Please download ComboFix by sUBs from HERE or HERE Save it to your Desktop
Physically disconnect from the internet.
Now STOP all your monitoring programs (Antivirus/Antispyware, Guards and Shields)
Click on your START button and choose Run. Then copy/paste the entire content of the following quotebox (Including the "" marks and the Symbols) into the run box.
"%userprofile%\desktop\ComboFix.exe" /KillAll
ClickOK and this will start ComboFix.
When finished, it will produce a log. Please save that log to a Notepad File and include it in your next reply along with a fresh HJT log.
Note:
Do not mouse-click combofix's window while it is running. That may cause it to stall.
* Re-enable all the programs that were disabled prior to the running of ComboFix.
* Post the following logs/Reports: ComboFix.txt
Fresh HijackThis log run after all the other tools have performed their cleanup.
CF disconnects your machine from the internet. The connection is automatically restored before CF completes its run. If CF runs into difficulty and terminates prematurely, the connection can be manually restored by restarting your machine.
