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Computer Behavior is now slow. Is it Performance or Elusive Infection?


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2 replies to this topic

#1 josephs141

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Posted 20 June 2013 - 06:19 PM

It is unclear whether my Thinkpad is infected. There are no popups or browser redirects or rogue programs; however, computer speed has slowed.
 
Recently, there has been a noticeable decrease in Windows 7 performance.  It is most noticeable in "windows lag time" .  Lag time is the amount of time windows takes to load appropriate and necessary services.  Windows Lag time, after booting into windows has increased. Does this determine Trojan infection? 
 
Please explain wat I need to tell you and how to gather this information.
 
Help from experienced Computer Experts is appreciated.
 
Hear from you soon
 
Thank you
 
Computer Specification
 
IBM Thinkpad R51
Windows 7 Ultimate
1 Gb RAM
80Gb Hard Drive
AVG Antivirus 2011

Edit: Moved topic from Windows XP to the more appropriate forum. ~ Animal

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#2 nasdaq

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Posted 24 June 2013 - 09:29 AM

Hello, Welcome to BleepingComputer.
I'm nasdaq and will be helping you.

If you can please print this topic it will make it easier for you to follow the instructions and complete all of the necessary steps in the order listed.
===

Search and delete the AdWare, PUP (Potentially Unwanted Program) installed on your computer.

Please download AdwCleaner by Xplode onto your Desktop.
  • Close all open programs and internet browsers.
  • Double click on AdwCleaner.exe to run the tool.
  • Click on Delete tab follow the prompts.
  • A log file will automatically open after the scan has finished.
  • Please post the content of that log file with your next answer.
  • You can find the log file at C:\AdwCleaner[Rn].txt (n is a number).
===

thisisujrt.gif Please download
Junkware Removal Tool to your Desktop.
  • Please close your security software to avoid potential conflicts.
  • Run the tool by double-clicking it. If you are using Windows Vista or 7, right-mouse click it and select Run as administrator.
  • The tool will open and start scanning your system.
  • Please be patient as this can take a while to complete, depending on your system's specifications.
  • On completion, a log (JRT.txt) is saved to your Desktop and will automatically open.
  • Please post the contents of JRT.txt into your reply.
===

Please download ComboFix from any of the links below, and save it to your desktop. For information regarding this download, please visit this web page: http://www.bleepingcomputer.com/combofix/how-to-use-combofix
Link 1
Link 2

IMPORTANT !!! Save ComboFix.exe to your Desktop

1. Close any open browsers.
2. Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix.
3. Do not install any other programs until this if fixed.


How to : Disable Anti-virus and Firewall...
http://www.bleepingcomputer.com/forums/topic114351.html

Double click on ComboFix.exe and follow the prompts.
  • When finished, it will produce a report for you.
  • Please post the C:\ComboFix.txt
Note: Do not mouse click ComboFix's window while it's running. That may cause it to stall

Note: If you have difficulty properly disabling your protective programs, refer to this link --> http://www.bleepingcomputer.com/forums/topic114351.html

Note: If after running ComboFix you get this error message "Illegal operation attempted on a registry key that has been marked for deletion." when attempting to run a program all you need to do is restart the computer to reset the registry.
===

Third party programs if not up to date can be the cause of infiltration an infection.

Please run this security check for my review.

Download Security Check by screen317 from here.
  • Save it to your Desktop.
  • Double click SecurityCheck.exe and 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.
===

Please run the DDS tool and post the DDS.txt log for my review.

Please paste the logs in your next reply DO NOT ATTACH THEM.
Let me know what problem persists.

#3 nasdaq

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Posted 30 June 2013 - 07:32 AM

Due to the lack of feedback, this topic is now closed.

In the event you still have problems, please send me or any Moderator a Private Message and ask them to reopen this topic within the next 5 days.

Please include a link to your topic in the Private Message. Thank you.




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