slow performance + other issues

Hello there , internet explorer keeps freezing and becoming unresponsive, advertisement pop ups keep appearing too and certain programmes are failing to run. Attempted to download OTL by clicking the link in the new user guide. It begins to download. Windows smart filter interupts download. i click permission/run anyway to continue. windows message appears: Attempting to resolve problem. Close programme. Also tried downloading OTL from mirror sites, but still have same issue. Could malware be preventing the download?
Many thanks

Last edited by wandmonkey on 17th May 2012, 2:26 pm; edited 2 times in total (Reason for editing : addition info)

Please download aswMBR from here

• Save aswMBR.exe to your Desktop
  
• Double click aswMBR.exe to run it
  
• Click the Scan button to start the scan as illustrated below
  

Note: Do not take action against any **Rootkit** entries until I have reviewed the log. Often there are false positives

• Once the scan finishes click Save log to save the log to your Desktop
  
  
  
• Copy and paste the contents of aswMBR.txt back here for review
  

Please visit this webpage for a tutorial on downloading and running ComboFix:

http://www.bleepingcomputer.com/combofix/how-to-use-combofix

See the area: Using ComboFix, and when done, post the log back here.


Scan for malware

Please download Malwarebytes Anti-Malware from HERE.


Double Click mbam-setup.exe to install the application.

• Make 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.
  
• The scan may take some time to finish,so please be patient.
  
• When the scan is complete, click OK, then Show Results to view the results.
  
• Make sure that everything is checked, and click Remove Selected.
  
• When disinfection is completed, a log will open in Notepad and you may be prompted to Restart. If you are prompted to restart, please allow it to restart your computer. Failure to do this, will cause the infection to still be active on the computer.
  
• Please save the log to a location you will remember.
  
• The log is automatically saved by MBAM and can be viewed by clicking the Logs tab in MBAM.
  
• The log can also be found at 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
  
• Copy and paste the entire report in your next reply.