Trojan.Zeroaccess infection

Viruses and worms
1

My laptop has the Trojan.Zeroaccess bug. I’ve read several threads and forums on this, but it seems that I need personal assistance and not just follow generic advice. I’ve downloaded most of the programs that I’ve read about (ComboFix, ERUNT, OTL). Now I just need help getting rid of this darn thing! Can someone walk me through?

THANKS!

2

Go here: http://forum.avast.com/index.php?topic=53253.0
Attach the logs and wait for the assitance of one of our qualified malware removers,

polonus

3

That thread says not to post logs or ask questions there. Should I?

4

because you are going to attach the logs here…in this topic that you have started :wink:
the link Polonus gave is a how to do it guide…

the logs we need is… Malwarebytes / OTL / aswMBR

5

Thanks Pondus for explaining.

@moby9ball,

When the qualified removal expert comes on, he will inform you as what to do next. Follow his instructions to the dot.
Do not panick, all is well, you will be in the best of hands with essexboy’s assistance in cleansing that malcode from your system,

polonus

6

Thanks Pondus and polonus. I apologize for my naivete, I’m new to forum posting. I will compile all of the logs and post.

7
I'm new to forum posting.
we all have a frist time.. ;)
8

Here are the logs. There was also a DAT file created with the aswMBR scan. Is that needed?

9

No no requirement for the dat file

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: (no name) - {465E08E7-F005-4389-980F-1D8764B3486C} - No CLSID value found. [2011/05/17 21:55:35 | 000,011,386 | -HS- | C] () -- C:\Users\MattMike\AppData\Local\fo85h7deu88aq42sp862xe76evu583fq [2011/05/17 21:55:35 | 000,011,386 | -HS- | C] () -- C:\ProgramData\fo85h7deu88aq42sp862xe76evu583fq

:Files
C:\Users\MattMike\AppData\Local{485f57bb-294e-ce28-c429-735469e78876}

:Commands
[purity]
[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

10

I disabled Symantec Endpoint but ComboFix insisted it was still enabled. Is there any way to determine if it ran properly? When my system rebooted, the Trojan.Zeroaccess warnings did NOT pop up.

11

No thats fine, any outstanding problems ?

12

Not that I’ve noticed. Thank you so much for your help!!!

13

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:

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

:Commands [resethosts] [emptytemp] [Reboot]

[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done

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

[*]Go to control panel
[*]Select folder options (Appearance > Folder options in category view)
[*]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

SPRING CLEAN

To manually create a new Restore Point

[*]Go to Control Panel and select System
[*]Select System
[*]On the left select System Protection and accept the warning if you get one
[*]Select System Protection Tab
[*]Select Create at the bottom
[*]Type in a name i.e. Clean
[*]Select Create

Now we can purge the infected ones

[*]GoStart > All programs > Accessories > system tools
[*]Right click Disc cleanup and select run as administrator
[*]Select Your main drive and accept the warning if you get one
[*]For a few moments the system will make some calculations
[*]Select the More Options tab
[*]In the System Restore and Shadow Backups select Clean up
[*]Select Delete on the pop up
[]Select OK
[]Select Delete

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

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:

14

Thanks again. You guys are awesome! ;D

15

My pleasure