BleepingComputer.com: malware that effectivly stops the computer

I have a Dell E510 computer running Windows XP home edition. within the last few days it has been running slow and the Task Manager indicates that the CPU is running at 100%. I run Microsoft Security Essentials as a virus and firewall. I have downloaded Malewarebytes and a complete scan of the c drive has found and quarantined the following: Trojan.Zlob, Trojan.BHO, Trojan.Agent, Trojan.downloader. The computer works fine until I reconnect the cable to the broadband modem then it all starts again and maleware bytes reports that it blocked access to 188.229.90.136 195.3.145.252
95.168.173.224 78.140.152.61 67.29.139.153. and some others that I missed. The CPU is back at 100%, it sends me web pages that are not correct and the only way to get it back is to turn it off. This may or may not be related but it seems that every 1 or 2 days I get a message from Adobe systems that says I need to update my reader or player. I have a laptop running Vista on the same network and it has not been affected...yet.
Any help would be appreciated. Thanks, xrx1973

This post has been edited by Orange Blossom: 28 July 2011 - 11:04 PM
Reason for edit: Moved to AII from XP. ~ OB

Welcome aboard

Download Security Check from HERE, and save it to your Desktop.

* Double-click SecurityCheck.exe
* Follow the onscreen instructions inside of the black box.
* A Notepad document should open automatically called checkup.txt; please post the contents of that document.

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Please download MiniToolBox and run it.

Checkmark following boxes:

• Report IE Proxy Settings
  
• Report FF Proxy Settings
  
• List content of Hosts
  
• List IP configuration
  
• List last 10 Event Viewer log
  
• List Users, Partitions and Memory size

Click Go and post the result.

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Download Malwarebytes' Anti-Malware (aka MBAM): http://www.malwarebytes.org/products/malwarebytes_free to your desktop.

* Double-click mbam-setup.exe and follow the prompts to install the program.
* At the end, be sure a checkmark is placed next to 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 quick 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.

Be sure to 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

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Please download GMER from one of the following locations and save it to your desktop:

• Main Mirror
  This version will download a randomly named file (Recommended)
  
• Zipped Mirror
  This version will download a zip file you will need to extract first. If you use this mirror, please extract the zip file to your desktop.

• Disconnect from the Internet and close all running programs.
  
• Temporarily disable any real-time active protection so your security programs will not conflict with gmer's driver.
  
• Double-click on the randomly named GMER file (i.e. n7gmo46c.exe) and allow the gmer.sys driver to load if asked.
  
• Note: If you downloaded the zipped version, extract the file to its own folder such as C:\gmer and then double-click on gmer.exe.
  
  
  
  
• GMER will open to the Rootkit/Malware tab and perform an automatic quick scan when first run. (do not use the computer while the scan is in progress)
  
• If you receive a WARNING!!! about rootkit activity and are asked to fully scan your system...click NO.
  
• Now click the Scan button. If you see a rootkit warning window, click OK.
  
• When the scan is finished, click the Save... button to save the scan results to your Desktop. Save the file as gmer.log.
  
• Click the Copy button and paste the results into your next reply.
  
• Exit GMER and be sure to re-enable your anti-virus, Firewall and any other security programs you had disabled.

IMPORTANT! If for some reason GMER refuses to run, try again.
If it still fails, try to UN-check "Devices" in right pane.
If still no joy, try to run it from Safe Mode.