Computer running very slow and lack of memory

Viruses and worms
1

My another computer running very slow and lack of memory. Scan with Avast nothing detected.

2

Please download Farbar Recovery Scan Tool by Farbar and save it to your desktop.

Note: You need to run the version compatibale with your system. If you are not sure which version applies to your system download both of them and try to run them.
Only one of them will run on your system, that will be the right version.

[*]Double-click to run it. When the tool opens click Yes to disclaimer.
[*]Under Optional Scan ensure “List BCD” and “Driver MD5” are ticked.
[*]Press Scan button.
[*]It will make a log (FRST.txt) in the same directory the tool is run. Please attach it to your reply.
[*]The first time the tool is run, it makes also another log (Addition.txt). Please attach it to your reply.

3

Dear TwinHeadedEagle,
Please find attached FRST.txt for your reference.

4

Addition.txt missing…

5

Here the file.

6

Let’s make another scan:

Download TDSSKiller and save it to your desktop

Execute TDSSKiller.exe by doubleclicking on it.
Confirm “End user Licence Agreement” and “KSN Statement” dialog box by clicking on Accept button.

[*] Press Start Scan
[*] If Suspicious object is detected, the default action will be Skip, click on Continue.
[*] If Malicious objects are found, select Cure.

Once complete, a log will be produced at the root drive which is typically C:\ ,for example, C:\TDSSKiller.<version_date_time>log.txt

Please post the contents of that log in your next reply.

  1. Please download ComboFix by sUBs from here and save it to your Desktop.
    If you are unsure how ComboFix works please read this guide carefully.
    Note: ComboFix must be downloaded to your Desktop.
  1. Temporarily disable your AntiVirus program, usually via a right click on the System Tray icon. They may interfere with Combofix.
    If you are unsure how to do this please read this or this Instruction.

Instructions how to disable avast:

[*]Right click on the avast! system tray icon (
http://www.mcshield.net/pg/images/avast5.png
) in the lower right corner of the screen and scroll up to avast! shield controls;
[*]In the menu that appears, choose Disable Permanently. When you are prompted to turn off security, click Yes.

Note: Do not forget to turn back on this option after the cleaning by choosing avast! shield controls > Enable all shield options.

  1. Run ComboFix. Click on I Agree!

[i][size=7pt]- ComboFix will display DISCLAIMER of warranty on software.
By clicking I Agree ComboFix shall continue.

  • ComboFix will check if there is a newer version of ComboFix available.
    Click Yes if prompted to download.[/size]
    -If Recovery Console is not installed, ComboFix will offer download & installation.
    Click Yes to allow ComboFix to install Recovery Console.
  • ComboFix will scan your computer in stages, total of 50 stages.
    Do not mouse-click around while ComboFix is running.
    Note:If you see a message like “Illegal operation attempted on a registry key that has been marked for deletion” just restart your computer.
    [/i]
  1. When the tool is finished, it will produce a log report for you. (typical location: C:[b]ComboFix.txt[/b] )
    Attach log reports ( ComboFix.txt) back to topic.
7

Here TDSSKiller file…

8

Here ComboFix file…

9

Your PC seems clean. What are you symptoms? How does the problem manifest?

10

Few problem here:

  • When I typing after few second only the word will appear (in MS PowerPoint, in Google Chrome etc)
  • When I try highlighted and drag will take few second to respond
11

When this started to happen? Your computer is clean, no malware…

12

Since last year… December 2013. Especially when browse to facebook…
CPU running at 25% but RAM up to 88%

Please find attached my computer spec

13

You’re using 64-bit system with only 2gb of ram memory, that is not very good, and could be the problem. Processor usage is normal. You should take it to the service, so they can measure the temperature. For me, everything looks ok, I said what could be the problem.

14

Dear TwinHeadedEagle,
Noted. Thank you for your support and advice.