Removing Virus makes computer unable to startup.

Viruses and worms
1

Hi, i have recently started using avast! and with my first scan i detected several viruses in my computer. i moved most of the files to the virus chest(i could’nt do this for some due to the access denied error message). anyway, after doing this, i was told to restart my computer. when i restarted my computer…it failed to startup. After using system restore(windows could not fix the startup)…to before avast! was installed…startup worked ok and there was no problem(except that the viruses where no longer in the chest as avast! was not installed yet.)…How can i remove the viruses without causing my startup to fail? and what about those viruses with the access denied error?

2

Please attach your logs.
http://forum.avast.com/index.php?topic=53253.0

3

thanks for the reply…im having trouble downloading OTL. the page appears blank.
Edit:Nvm,found an alternative download.still scanning…

4

Alright did the scan.I did not restart my computer…because im pretty sure there will be a startup error again.

5

Here are the rest of the scans.

6

Ok, essexboy is informed.
He’ll have a look at your logs and instruct you how to continue.
Good luck,
Asyn

7

thanks :).

8

You’re welcome…!

9

Hi you have the zero access rootkit - I will remove manually what I can safely and then use a specialist tool to fix the consrv.dll

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

:OTL

IE - HKCU..\URLSearchHook: {88c7f2aa-f93f-432c-8f0e-b7d85967a527} - No CLSID value found
[2011/07/06 07:09:45 | 000,000,000 | —D | M] (cacaoweb) – C:\Users\mp5dabesr\AppData\Roaming\mozilla\Firefox\Profiles\3d7iwt8r.default\extensions\cacaoweb@cacaoweb.org
[2011/12/18 17:58:12 | 000,000,000 | —D | M] (Complitly - Speed up your search with your personal search suggestions tool) – C:\Users\mp5dabesr\AppData\Roaming\mozilla\Firefox\Profiles\3d7iwt8r.default\extensions{33e0daa6-3af3-d8b5-6752-10e949c61516}
O2:64bit: - BHO: (Complitly) - {0FB6A909-6086-458F-BD92-1F8EE10042A0} - C:\Users\mp5dabesr\AppData\Roaming\Complitly\64\Complitly64.dll (SimplyGen)
O2 - BHO: (Complitly) - {0FB6A909-6086-458F-BD92-1F8EE10042A0} - C:\Users\mp5dabesr\AppData\Roaming\Complitly\Complitly.dll (SimplyGen)
O4 - HKCU…\Run: [cacaoweb] C:\Users\mp5dabesr\AppData\Roaming\cacaoweb\cacaoweb.exe ()
O20:64bit: - HKLM Winlogon: UserInit - (C:\Windupdt\winupdate.exe) - File not found
O20:64bit: - HKLM Winlogon: UserInit - (C:\Windupdt\winupdate.exe) - File not found
O20:64bit: - HKLM Winlogon: UserInit - (C:\Windupdt\winupdate.exe) - File not found
[2011/12/09 00:21:46 | 000,000,000 | —D | C] – C:\Users\mp5dabesr\AppData\Roaming\Complitly
[2011/12/19 10:35:11 | 000,397,824 | ---- | M] () – C:\Users\mp5dabesr\Desktop\cacaoweb.exe
[2011/12/19 15:11:17 | 000,000,000 | —D | M] – C:\Users\mp5dabesr\AppData\Roaming\cacaoweb

:Files
ipconfig /flushdns /c
C:\Windows\tasks\At*.job

: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

Thanks you so much! ;D
heres the results.

Ran another scan with avast!. 2 infected files,
C:\Users\Mp5dabesr\AppData\RoamingKtMmIJeB4.exe
C:\Windows\SysWOW64\config\systemprofile\appData\Roaming\860A39EF.exe

System is running pretty smooth tho. :slight_smile:

11

Max++ / ZeroAccess

essexboy relax a little ;D

12

OK just a net service to kill by the looks of it, on completion could you let me know what problems remain

  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. Open notepad and copy/paste the text in the quotebox below into it:
File:: c:\windows\system32\config\systemprofile\AppData\Roaming\860A39EF.exe C:\Users\Mp5dabesr\AppData\RoamingKtMmIJeB4.exe

NetSvc::
texrehev

Registry::
[HKEY_USERS.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run]
“860A39EF.exe”=-

Driver::
texrehev

Save this as CFScript.txt, in the same location as ComboFix.exe

http://img.photobucket.com/albums/v666/sUBs/CFScriptB-4.gif

Refering to the picture above, drag CFScript into ComboFix.exeWhen finished, it shall produce a log for you at C:\ComboFix.txt which I will require in your next reply.

13

Done. heres the log. once again, thank you so much for helping me :)!

14

How is the computer behaving now ?

15

YUP ;D! its working perfectly now! thanks essexboy! your the best :P.

16

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

[*]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

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: