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Other => Viruses and worms => Topic started by: wengweng805 on October 11, 2012, 08:12:18 PM

Title: explorer.exe virus
Post by: wengweng805 on October 11, 2012, 08:12:18 PM
that pesky explorer.exe virus is in one of my computers
everytime i open any internet explorer it freezes and jumps in that .exe as well
ive tried almost every malware/anti virus under the sun
help?  >:(
Title: Re: explorer.exe virus
Post by: Pondus on October 11, 2012, 08:53:15 PM
follow this guide and attach the logs.....not copy and paste   http://forum.avast.com/index.php?topic=53253.0   

AdwCleaner
Malwarebytes
OTL
aswMBR
Title: Re: explorer.exe virus
Post by: wengweng805 on October 11, 2012, 09:56:23 PM
heres the logs
wouldnt let me open aswMBR
thanks!!
Title: Re: explorer.exe virus
Post by: essexboy on October 11, 2012, 10:03:40 PM
I see that you have RogueKiller, have you run it yet ?  If so could you attach the logs

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
Code: [Select]
:OTL
O2 - BHO: (no name) - {3049C3E9-B461-4BC5-8870-4C09146192CA} - No CLSID value found.
O3:64bit: - HKLM\..\Toolbar: (no name) - 10 - No CLSID value found.
O3 - HKU\S-1-5-21-3033274647-1249332082-2962351127-1000\..\Toolbar\WebBrowser: (no name) - {2318C2B1-4965-11D4-9B18-009027A5CD4F} - No CLSID value found.
O3 - HKU\S-1-5-21-3033274647-1249332082-2962351127-1000\..\Toolbar\WebBrowser: (no name) - {CCC7A320-B3CA-4199-B1A6-9F516DD69829} - No CLSID value found.
[2012/07/17 13:05:37 | 000,000,096 | -H-- | C] () -- C:\ProgramData\-QcjHoexnfYroavr
[2012/07/17 13:05:37 | 000,000,096 | -H-- | C] () -- C:\ProgramData\-QcjHoexnfYroav
[2012/07/17 13:05:26 | 000,000,368 | -H-- | C] () -- C:\ProgramData\QcjHoexnfYroav

:Commands
[resethosts]
[emptytemp]
[CREATERESTOREPOINT]
[Reboot]
Title: Re: explorer.exe virus
Post by: wengweng805 on October 11, 2012, 10:27:48 PM
i have yet to run rouge killer, should i do so now?
heres the log for the quick scan
thanks again!!
Title: Re: explorer.exe virus
Post by: essexboy on October 11, 2012, 11:39:37 PM
Yes please run RogueKiller as per the instructions in the logs thread
Title: Re: explorer.exe virus
Post by: wengweng805 on October 11, 2012, 11:52:57 PM
here ya go, how bad is it?
thanks!
Title: Re: explorer.exe virus
Post by: essexboy on October 12, 2012, 11:38:29 AM
OK you have a bad partition that needs removing

Download Tuxbot (http://sourceforge.net/projects/tuxboot/files/latest/download?source=files) to your desktop 
Run Tuxboot 
On the first screen in the dropdown box select Gparted Live  - stable   
(https://dl.dropbox.com/u/73555776/Tuxboot.GIF) 
Select USB Drive from the Type drop-down. 
Select the correct USB device from the Drive drop-down. 
Click OK. This will start the process of creating the bootable USB device. 
 
Now boot off of the newly created Gparted USB.   
   
You should be here... Press ENTER   
 
(https://dl.dropbox.com/u/73555776/Gpart-Start.GIF) 
 
By default, "do not touch keymap" is highlighted.   
 
(https://dl.dropbox.com/u/73555776/Gpart-keyselect.GIF) 
 
 Leave this setting alone and just press ENTER. 
 
(https://dl.dropbox.com/u/73555776/Gpart-continue.GIF) 
 
Choose your language and press ENTER. English is default [33]   
 
At the mode prompt enter 0,  press ENTER   
 
You will now be taken to the main GUI screen below 
 
(https://dl.dropbox.com/u/73555776/Gpart-partitions.GIF) 
 
According to your logs, the partition that you want to delete is 10 MB 
 
Right click this partition and select delete .   
 
(https://dl.dropbox.com/u/73555776/GPart-delete.GIF) 
 
The Partition has gone   
 
Now select Apply   
 
Now you should be here:   
 
(https://dl.dropbox.com/u/73555776/Areyousure.GIF) 
 
Select Apply after double checking that the right partition was deleted   
   
 
Is "boot" next to your system drive (100MB)?   
If "boot" is not next to your system drive (100MB) under "Flags", right-mouse click the OS drive while in Gparted and select Manage Flags   
(https://dl.dropbox.com/u/73555776/GPart-flags.GIF) 
 
In the menu that pops up, place a checkmark in boot like the picture below, then close :   
 
(https://dl.dropbox.com/u/73555776/GPart-bootflag.GIF)   
 
 
Under File select Quit 
(https://dl.dropbox.com/u/73555776/Gpart-quit.GIF) 
 
You will see this small Popup   
(https://dl.dropbox.com/u/73555776/Gpart-reboot.GIF) 
 
 
 
Choose reboot and then press OK. 
 
Reboot to normal windows, if windows gives an error then select startup repair
Title: Re: explorer.exe virus
Post by: wengweng805 on October 12, 2012, 11:48:52 PM
so i did everything as you said and the start up repair wasnt able to automatically fix it. it just loops at start up then back to the repair
Title: Re: explorer.exe virus
Post by: essexboy on October 13, 2012, 01:12:59 PM
Could you confirm that you set the Active(Boot) partition to the 100MB system partition

1 - [XXXXXX] NTFS (0x07) [VISIBLE] Offset (sectors): 18866176 | Size: 100 Mo
Title: Re: explorer.exe virus
Post by: wengweng805 on October 13, 2012, 10:07:14 PM
yep
the screen looks like this
(http://i45.tinypic.com/2rzpi12.jpg)
Title: Re: explorer.exe virus
Post by: essexboy on October 13, 2012, 10:28:04 PM
OK that is weird.. Using Gparted set the boot to the main system drive 456Gb
Title: Re: explorer.exe virus
Post by: wengweng805 on October 14, 2012, 12:41:37 AM
done
now its saying "BOOTMGR is missing press crt+alt+del to restart"
and thats it
Title: Re: explorer.exe virus
Post by: essexboy on October 14, 2012, 01:48:32 PM
Download the following three programmes to your desktop :

 
1.  WiNTBootIc (https://dl.dropbox.com/u/73555776/WiNToBootic.exe)
2.  Windows 7 64bit RC (http://www.forum.probz.net/index.php?/files/file/19-windows-7-recovery-environment-iso/)
3.  Farbar Recovery Scan Tool x64 (http://download.bleepingcomputer.com/farbar/FRST64.exe)

Extract wintoboot to your desktop
Insert a USB drive of at least 1GB
Run Wintoboot

(http://dl.dropbox.com/u/73555776/wintoboot.JPG)

Drag and drop the Windows 7 ISO to the programme in the space indicated
Tick the Format box and accept the warnings
Press Do It

You will see it progressing

(http://dl.dropbox.com/u/73555776/usb%20progress.JPG)

It will let you know when it is done
Then copy FRST to the same USB

(http://dl.dropbox.com/u/73555776/frstwintoboot.JPG)


Insert the USB into the sick computer and start the computer.  First ensuring that the system is set to boot from USB
Note: If you are not sure how to do that follow the instructions Here (http://pcsupport.about.com/od/fixtheproblem/ss/bootorderchange.htm)

 
When you reboot you will  see this although yours will say windows 7. Click repair my computer
(http://i1224.photobucket.com/albums/ee362/Essexboy3/RepairVista_7275.jpg)
 
Select your operating system
(http://i1224.photobucket.com/albums/ee362/Essexboy3/RepairVista_7277202.jpg)
 
Select Command prompt
(http://i1224.photobucket.com/albums/ee362/Essexboy3/RepairVista_7277.jpg)
 
At the command prompt type the following  :

notepad and press Enter.
The notepad opens. Under File menu select Open.
Select "Computer" and find your flash drive letter and close the notepad.
In the command window type e:\frst64.exe and press Enter
Note: Replace letter e with the drive letter of your flash drive.
The tool will start to run.
When the tool opens click Yes to disclaimer.
(https://dl.dropbox.com/u/73555776/FRST%20Start%20scan.gif)
Press Scan button.
It will make a log (FRST.txt) on the flash drive. Please copy and paste it to your reply.
Title: Re: explorer.exe virus
Post by: wengweng805 on October 14, 2012, 06:22:05 PM
heres the log
thanks!
Title: Re: explorer.exe virus
Post by: essexboy on October 14, 2012, 06:42:11 PM
Quote
ATTENTION: Malware custom entry on BCD on drive d: detected. Check for MBR/Partition infection.
Ok looks like the blighter changed the BCD as well as the additional partition

Reboot to the recovery console and select command prompt
Type the following pressing enter after each :

bootrec /FixMbr
bootrec /FixBoot
Title: Re: explorer.exe virus
Post by: wengweng805 on October 14, 2012, 06:56:36 PM
after doing that and restarting without the usb it gives the BOOTMGR is missing error
Title: Re: explorer.exe virus
Post by: essexboy on October 14, 2012, 08:24:07 PM
Could you try a further startup repair from the recovery console
Title: Re: explorer.exe virus
Post by: wengweng805 on October 14, 2012, 09:59:52 PM
i believe that did the trick! thank you so much!
Title: Re: explorer.exe virus
Post by: essexboy on October 14, 2012, 10:30:20 PM
When you did the first startup repair did you do it from windows or the recovery console ?

Could you attach a fresh OTL log please to ensure that it has all gone
Title: Re: explorer.exe virus
Post by: wengweng805 on October 14, 2012, 10:46:53 PM
windows(i think)
the second time fromt he console
running the scan now
Title: Re: explorer.exe virus
Post by: wengweng805 on October 14, 2012, 11:05:07 PM
heres the log
is she clean?
Title: Re: explorer.exe virus
Post by: essexboy on October 14, 2012, 11:42:21 PM
Thank you for that, I will need to amend my instructions slightly I feel

How is the computer running now ?

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
Code: [Select]
:OTL
IE - HKU\S-1-5-21-3033274647-1249332082-2962351127-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings: "ProxyServer" = http=127.0.0.1:50612
[2012/07/17 12:25:38 | 000,000,000 | ---D | M] (ShopToWin2) -- C:\Users\Brian\AppData\Roaming\Mozilla\Firefox\Profiles\5gxtp81h.default\extensions\{5835466c-49af-4cbe-b102-a8c8b6313749}
[2012/06/09 14:48:05 | 000,000,000 | ---D | M] (ADDICT-THING) -- C:\Users\Brian\AppData\Roaming\Mozilla\Firefox\Profiles\5gxtp81h.default\extensions\4fd3c3e944ad3@4fd3c3e944b0c.info
O2 - BHO: (no name) - {3049C3E9-B461-4BC5-8870-4C09146192CA} - No CLSID value found.
O3:64bit: - HKLM\..\Toolbar: (no name) - 10 - No CLSID value found.
O3 - HKLM\..\Toolbar: (no name) - 10 - No CLSID value found.
O3 - HKU\S-1-5-21-3033274647-1249332082-2962351127-1000\..\Toolbar\WebBrowser: (no name) - {2318C2B1-4965-11D4-9B18-009027A5CD4F} - No CLSID value found.
O3 - HKU\S-1-5-21-3033274647-1249332082-2962351127-1000\..\Toolbar\WebBrowser: (no name) - {CCC7A320-B3CA-4199-B1A6-9F516DD69829} - No CLSID value found.

:Commands
[resethosts]
[emptytemp]
[CREATERESTOREPOINT]
[Reboot]
Title: Re: explorer.exe virus
Post by: wengweng805 on October 14, 2012, 11:56:41 PM
heres the log
computer running fine
Title: Re: explorer.exe virus
Post by: essexboy on October 15, 2012, 12:00:15 AM
Subject to no further problems   :)

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 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(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: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 (http://www.malwarebytes.org/mbam-download.php).

Update and run weekly to keep your system clean

Download and install FileHippo update checker (http://www.filehippo.com/updatechecker/) 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 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 ? (http://www.geekstogo.com/forum/topic/225044-preventing-malware-and-safe-computing/)Keep safe  :wave: