Stubborn sirefef infection.

Viruses and worms
1

Hi All,

Avast has been lighting up about this little infection that seems to be stuck in my services.exe file. Avast seems to be stopping it from getting any worse but it just keeps recreating itself and I haven’t been able to get rid of it.

Any help or advice is appreciated.

Dave

2

yes you seem to have a ZeroAccess rootkit :cry:

Malware removers are notified, it may take hours before one arrive so be patient

3

On completion of these two runs could you let me know what problems remain

Warning This fix is only relevant for this system and no other, using on another computer may cause problems

Be advised that when the fix commences it will shut down all running processes and you may lose the desktop and icons, they will return on reboot

Run OTL

[*]Under the Custom Scans/Fixes box at the bottom, paste in the following

https://dl.dropbox.com/u/73555776/OTL_Fix.GIF


:OTL
O2 - BHO: (SaveAs Class) - {C585C502-EE3C-5F32-37EB-5A5EDAD9ACF2} - C:\ProgramData\SaveAs\50b6e2d16f94e.ocx File not found
O3 - HKLM\..\Toolbar: (no name) - Locked - No CLSID value found.
O3 - HKU\S-1-5-21-3903012624-2916377251-1037065224-1000\..\Toolbar\WebBrowser: (no name) - {7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} - No CLSID value found.
O4:64bit: - HKLM..\Run: [] File not found
[2012/12/06 11:21:41 | 000,000,000 | ---D | C] -- C:\Users\David\AppData\Roaming\Ozoxw
[2012/12/06 11:21:41 | 000,000,000 | ---D | C] -- C:\Users\David\AppData\Roaming\Mealp
[2012/12/06 11:21:41 | 000,000,000 | ---D | C] -- C:\Users\David\AppData\Roaming\Heto

:Files
C:\windows\assembly\GAC_32\Desktop.ini
C:\windows\assembly\GAC_32\trzF15.tmp
C:\windows\assembly\GAC_64\Desktop.ini
C:\windows\assembly\GAC_64\trz37BC.tmp  
C:\Windows\Installer\{89c19232-e7e5-8f85-a532-0ebbdcd8bae1}

:Commands
[resethosts]
[emptytemp]
[CREATERESTOREPOINT]
[Reboot]

[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done
[*]Open OTL again and click the Quick Scan button. Post the log it produces in your next reply.

THEN

Download and Install Combofix

Download ComboFix from one of the following locations:
Link 1
Link 2

VERY IMPORTANT !!! Save ComboFix.exe to your Desktop

  • IMPORTANT - Disable your AntiVirus and AntiSpyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with our tools. If you have difficulty properly disabling your protective programs, refer to this link here

[*]Double click on ComboFix.exe & follow the prompts.
[*]Accept the disclaimer and allow to update if it asks

http://img.photobucket.com/albums/v706/ried7/NSIS_disclaimer_ENG.png

http://img.photobucket.com/albums/v706/ried7/NSIS_extraction.png

[*]When finished, it shall produce a log for you.
[*]Please include the C:\ComboFix.txt in your next reply.

Notes:

  1. Do not mouse-click Combofix’s window while it is running. That may cause it to stall.
  2. Do not “re-run” Combofix. If you have a problem, reply back for further instructions.
  3. If after the reboot you get errors about programmes being marked for deletion then reboot, that will cure it.

Please make sure you include the combo fix log in your next reply as well as describe how your computer is running now

4

Hi essexboy,

Thank you very much for your reply. Logs are attached. No avast popups as yet, running a full scan now.

Dave

5

Looks good from my side, when you are happy let me know and I will tidy up

6

All clean. Thank you very much for your help.

7

Subject to no further problems :slight_smile:

I will remove my tools now and give some recommendations, but, I would like you to run for 24 hours or so and come back if you have any problems

Now the best part of the day ----- Your log now appears clean :thumbsup:

A good workman always cleans up after himself so…The following will implement some cleanup procedures as well as reset System Restore points:

Remove ComboFix
[*]Hold down the Windows key + R on your keyboard. This will display the Run dialogue box
[*]In the Run box, type in ComboFix /Uninstall
(Notice the space between the “x” and “/”)
then click OK

http://i1224.photobucket.com/albums/ee362/Essexboy3/Misc%20screen%20shots/CF_Uninstall-1.jpg

[]Follow the prompts on the screen
[]A message should appear confirming that ComboFix was uninstalled

Run OTL and hit the cleanup button. It will remove all the programmes we have used plus itself.

We will now confirm that your hidden files are set to that, as some of the tools I use will change that
[*]Click Start.
[*]Open My Computer.
[*]Select the Tools menu and click Folder Options.
[*]Select the View Tab.
[*]Under the Hidden files and folders heading select Do not show hidden files and folders.
[]Click Yes to confirm.
[]Click OK.

http://users.telenet.be/bluepatchy/miekiemoes/images/javaicon.gif
Your Java is out of date.
Older versions have vulnerabilities that malware can use to infect your system.
Please follow these steps to remove older version of Java components and upgrade the application.

Upgrading Java:
[] Go to this site and click Do I have Java
[] It will check your current version and then offer to update to the latest version

Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes:

http://img233.imageshack.us/img233/7729/mbamicontw5.gif
Malwarebytes.

Update and run weekly to keep your system clean

Download and install FileHippo update checker and run it monthly it will show you which programmes on your system need updating and give a download link

If you use on-line banking then as an added layer of protection install Trusteer Rapport

It is critical to have both a firewall and anti virus to protect your system and to keep them updated. To keep your operating system up to date visit
[*]Microsoft Windows Update

To learn more about how to protect yourself while on the internet read our little guide How did I get infected in the first place ?Keep safe :wave:

8

Still looking good. Thank you again for your help and your cleanup advice.

Is it ok to run Malwarebytes and Avast together, or should I just run Avast and use MB to scan periodically?

9

They run well together ;D