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Autorun.inf


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#1 vernel1008

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Posted 16 October 2009 - 12:44 AM

I am infected by the autorun.inf virus. Before, I can easily erase this virus. Now I am infected as well as my external hard disk. I can also see in USB drive explorer.exe file. I can also see the recycler folder. inside it is a folder with name S-1-23232....... so on. Inside that folder, i can see the jwgkvsq.vmx file. I cannot delete it so i tried to find a way in the internet to erase it. To my success, I found out on how to disable security in deleting windows file so I can delete it. To my surprise, I can still see it today and my USB drive has an icon which is a folder.

I tried to use KK.exe but it was no good.



my operating system is Windows XP.
My laptop is an Asus EEE 900


I would appreciate any help. Thank You!

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#2 garmanma

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Posted 17 October 2009 - 07:37 PM

please download and run this on the computer and portable drive


:flowers:
Flash_Disinfector.exe by sUBs and save it to your desktop.
  • Double-click Flash_Disinfector.exe to run it and follow any prompts that may appear.
  • The utility may ask you to insert your flash drive and/or other removable drives. Please do so and allow the utility to clean up those drives as well.
  • Hold down the Shift key when inserting the drive until Windows detects it to keep autorun.inf from executing if it is present.
  • Wait until it has finished scanning and then exit the program.
  • Reboot your computer when done.
Note: As part of its routine, Flash_Disinfector will create a hidden folder named autorun.inf in each partition and every USB drive that was plugged in when you ran it. Do not delete this folder...it will help protect your drives from future infection by keeping the autorun file from being installed on the root drive and running other malicious files.


===========================================

:thumbsup:
Some types of malware will disable Malwarebytes Anti-Malware and other security tools. If MBAM will not install, try renaming it first.
  • Right-click on the mbam-setup.exe file file and rename it to mysetup.exe.
  • Double-click on mysetup.exe to start the installation.
  • If that did not work, then try renaming and changing the file extension. <- click this link if you do not see the file extension
  • Right-click on the mbam-setup.exe file, rename it to mysetup and change the .exe extension to .scr, .com, .pif, or .bat.
  • Then double-click on mysetup.scr (or whatever extension you renamed it) to begin installation.
If after installation, MBAM will not run, open the Malwarebytes' Anti-Malware folder in Program Files.
  • Right-click on mbam.exe, rename it to myscan.exe.
  • Double-click on myscan.exe to launch the program.
  • If that did not work, then try renaming and change the .exe extension in the same way as noted above.
  • Double-click on myscan.scr (or whatever extension you renamed it) to launch the program.
If using Windows Vista, refer to How to Change a File Extension in Windows Vista.

Be sure to update MBAM through the program's interface (preferable method) or manually download the definition updates and just double-click on mbam-rules.exe to install. Then perform a Quick Scan in normal mode and check all items found for removal. Don't forgot to reboot afterwards. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware. When done, click the Logs tab and copy/paste the contents of the report in your next reply.

Note: MBAM uses Inno Setup instead of the Windows Installer Service to install the program. If installation fails in normal mode, try installing in safe mode. Doing this is usually not advised as MBAM is designed to be at full power when running in normal mode and loses some effectiveness for detection & removal when used in safe mode. For optimal removal, normal mode is recommended so it does not limit the abilities of MBAM. Therefore, after completing a scan it is recommended to uninstall MBAM, then reinstall it in normal mode and perform another Quick Scan.



------------------------------------

The process of cleaning your computer may require you to temporarily disable some security programs. If you are using SpyBot Search and Destroy, please refer to Note 2 at the bottom of this page.

Please download Malwarebytes Anti-Malware Free version and save it to your desktop.

NOTE: Before saving MBAM please rename it to zztoy.exe....now save it to your desktop.


alternate download link 1
alternate download link 2
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
MBAM will automatically start and you will be asked to update the program before performing a scan.
  • If an update is found, the program will automatically update itself.
  • Press the OK button to close that box and continue.
  • If you encounter any problems while downloading the updates, manually download them from here and just double-click on mbam-rules.exe to install.
On the Scanner tab:
  • Make sure the "Perform Quick Scan" option is selected.
  • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
Back at the main Scanner screen:
  • Click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad.
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply and exit MBAM.
Note:
-- If MBAM encounters a file that is difficult to remove, you may be asked to reboot your computer so it can proceed with the disinfection process. Regardless if prompted to restart the computer or not, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.

Note 2:
-- MBAM may make changes to your registry as part of its disinfection routine. If you're using other security programs that detect registry changes (like Spybot's Teatimer), they may interfere with the fix or alert you after scanning with MBAM. Please disable such programs until disinfection is complete or permit them to allow the changes. To disable these programs, please view this topic: How To Temporarily Disable Your Anti-virus, Firewall And Anti-malware Programs
---------------------------
Be sure to re-enable your AV and malware scan tools if they were disabled
Mark
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why won't my laptop work?

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#3 vernel1008

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Posted 18 October 2009 - 01:27 AM

ok thank you for your reply! i'll do them ASAP

#4 vernel1008

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Posted 18 October 2009 - 08:35 AM

sir garmanma, i tried it and it work. however, jwgkvsq.exe file returned in the recycler bin of one of my usb drive... is it a bad thing?

#5 garmanma

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Posted 18 October 2009 - 06:52 PM

With your portable drive attached, update Mbam
Run a FULL scan and post the results
A full scan will scan your portable drive
Mark
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why won't my laptop work?

Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits
Become a BleepingComputer fan: Facebook and Twitter

#6 vernel1008

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Posted 18 October 2009 - 10:36 PM

this is my MBAM log


----------------------

Malwarebytes' Anti-Malware 1.41
Database version: 2951
Windows 5.1.2600 Service Pack 2

10/19/2009 11:01:40 AM
mbam-log-2009-10-19 (11-01-40).txt

Scan type: Full Scan (C:\|D:\|F:\|G:\|H:\|I:\|J:\|K:\|L:\|M:\|N:\|R:\|)
Objects scanned: 235072
Time elapsed: 34 minute(s), 20 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

#7 garmanma

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Posted 19 October 2009 - 07:04 PM

That scan looked good. Try SAS
When you select SCAN, you have the option to select which drives you want to scan




ATF
Please download ATF Cleaner by Atribune & save it to your desktop.
  • Double-click ATF-Cleaner.exe to run the program.
  • Under Main "Select Files to Delete" choose: Select All.
  • Click the Empty Selected button.
  • If you use Firefox browser click Firefox at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • If you use Opera browser click Opera at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • Click Exit on the Main menu to close the program.
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

------------------------------------

SAS, may take a long time to scan
Please download and scan with SUPERAntiSpyware Free
  • Double-click SUPERAntiSypware.exe and use the default settings for installation.
  • An icon will be created on your desktop. Double-click that icon to launch the program.
  • If asked to update the program definitions, click "Yes". If not, update the definitions before scanning by selecting "Check for Updates". (If you encounter any problems while downloading the updates, manually download them from here. Double-click on the hyperlink for Download Installer and save SASDEFINITIONS.EXE to your desktop. Then double-click on SASDEFINITIONS.EXE to install the definitions.)
  • In the Main Menu, click the Preferences... button.
  • Click the "General and Startup" tab, and under Start-up Options, make sure "Start SUPERAntiSpyware when Windows starts" box is unchecked.
  • Click the "Scanning Control" tab, and under Scanner Options, make sure the following are checked (leave all others unchecked):
    • Close browsers before scanning.
    • Scan for tracking cookies.
    • Terminate memory threats before quarantining.
  • Click the "Close" button to leave the control center screen and exit the program.
  • Do not run a scan just yet.
    First
Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Scan with SUPERAntiSpyware as follows:
  • Launch the program and back on the main screen, under "Scan for Harmful Software" click Scan your computer.
  • On the left, make sure you check C:\Fixed Drive.
  • On the right, under "Complete Scan", choose Perform Complete Scan and click "Next".
  • After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
  • Make sure everything has a checkmark next to it and click "Next".
  • A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
  • If asked if you want to reboot, click "Yes" and reboot normally.
  • To retrieve the removal information after reboot, launch SUPERAntispyware again.
    • Click Preferences, then click the Statistics/Logs tab.
    • Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
    • If there are several logs, click the current dated log and press View log. A text file will open in your default text editor.
    • Please copy and paste the Scan Log results in your next reply.
  • Click Close to exit the program.
Note.. SAS doesn't open the registry hives for other user accounts on the system, so scans should be done from each user account.
Mark
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why won't my laptop work?

Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits
Become a BleepingComputer fan: Facebook and Twitter

#8 vernel1008

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Posted 21 October 2009 - 11:10 AM

These are my SAS log

SUPERAntiSpyware Scan Log
http://www.superantispyware.com

Generated 10/21/2009 at 11:36 PM

Application Version : 4.29.1004

Core Rules Database Version : 4162
Trace Rules Database Version: 0

Scan type : Complete Scan
Total Scan Time : 00:34:27

Memory items scanned : 206
Memory threats detected : 0
Registry items scanned : 4198
Registry threats detected : 0
File items scanned : 7302
File threats detected : 0



----------------------------------

SUPERAntiSpyware Scan Log
http://www.superantispyware.com

Generated 10/22/2009 at 00:01 AM

Application Version : 4.29.1004

Core Rules Database Version : 4162
Trace Rules Database Version: 1978

Scan type : Quick Scan
Total Scan Time : 00:17:03

Memory items scanned : 206
Memory threats detected : 0
Registry items scanned : 387
Registry threats detected : 0
File items scanned : 4759
File threats detected : 0

#9 garmanma

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Posted 21 October 2009 - 06:02 PM

You look good to go to me
How is it running?
Mark
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why won't my laptop work?

Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits
Become a BleepingComputer fan: Facebook and Twitter

#10 vernel1008

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Posted 22 October 2009 - 04:03 AM

its ok THANK YOU! what will I do if ever it will return again? randomly it comes back... the usb drive icon turns into a folder... hopefully the flash_disinfector will do the trick

#11 Keithuk

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Posted 22 October 2009 - 06:31 AM

I've had this problem on flash drives but it normally links to rundll32.exe on the dirve or WIAACMGR.EXE (Windows Picture Acquisition Wizard). An Autorun.inf isn't a virus its just instructions on what file to run when the drive is inserted, just like a bat file. :thumbsup:

Keith

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Windows XP 2002 Professional SP3 (desktop computer)
Windows 7 Professional SP1 32bit (laptop computer)

Windows 8 64bit spare drive for laptop computer


#12 vernel1008

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Posted 22 October 2009 - 08:20 AM

As what I've said earlier, there is a recycler file with jwgkvsq.vmx file that I cannot remove same with the autorun.inf

as I google that problem they are somewhat linked as the .vmx file is a worm which creates an infected autorun.inf. It exploits Microsoft Windows vulnerability:
Microsoft Security Bulletin MS08-067 Critical

I also said earlier that I tried other methods before going to bleepingcomputer which somehow worked but again it returned on my USB drive.

Maybe it's my bad that I should have entitled the thread as jwgkvsq.vmx

you're right that autorun.inf is not a virus but somehow some virus can compromise that file and infect the target computer.

I came to bleepingcomputer for some professional advice about the problem although I researched about the problem at firsthand.



Thank You Sir Garmanma for you time and effort to reply!
Thank You Sir Keithuk for your kind explanation regarding the matter!
Thank You bleepingcomputer!

#13 garmanma

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Posted 22 October 2009 - 06:34 PM

If you would like, submit the file, jwgkvsq.vmx for a jottiscan or virustotal scan
http://virusscan.jotti.org/en
http://www.virustotal.com/

To delete it you can use File Assassin that is include in Malwarebytes


MBAM has a built-in FileAssassin feature for removing stubborn malware or other malicious files that it did not detect.
  • Go to the "More Tools" tab and click on the "Run Tool" button
  • Browse to the location of the file (C:\xxxx.exe) to remove using the drop down box next to "Look in:" at the top.
  • When you find the file(s), click "Open".
  • You will be prompted with a message warning: This file will be permanently deleted. Are you sure you want to continue?. Click Yes.
  • If removal did not require a reboot, you will receive a message indicating the file was deleted successfully, however, I recommend you reboot anyway.

Caution: Be careful what you delete. FileAssassin is a powerful program, designed to move highly persistent files. Using it incorrectly could lead to serious problems with your operating system.


If the file returns, then you probably still have malware on your system which is protecting or regenerating it.
Mark
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why won't my laptop work?

Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits
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#14 Keithuk

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Posted 23 October 2009 - 07:23 AM

please download and run this on the computer and portable drive

:trumpet:
Flash_Disinfector.exe
Note: As part of its routine, Flash_Disinfector will create a hidden folder named autorun.inf in each partition and every USB drive that was plugged in when you ran it. Do not delete this folder...it will help protect your drives from future infection by keeping the autorun file from being installed on the root drive and running other malicious files.


Yes I don't find Flash_Disinfector.exe any use what so ever. It stops autorun on any CD Rom drive not just flash drives. As you say it makes a Autorun.inf folder on you drive which you can't remove. I didn't look on Add/Remove as it installed in a flash. :thumbsup:

I ended up formatting the drive as I was going to do that anyway, I just wondered how effective it was, not very. I you hold the Shift key on any drive this will stop Autorun. :flowers:

Keith

Windows ME (spare computer)
Windows XP 2002 Professional SP3 (desktop computer)
Windows 7 Professional SP1 32bit (laptop computer)

Windows 8 64bit spare drive for laptop computer


#15 garmanma

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Posted 23 October 2009 - 06:44 PM

What it does:

The vaccination is two fold. If the computer's autorun settings are enabled, then files can spread to any drive that's plugged in. If the drives themselves are vaccinated, all the tool does is prevent the autorun.inf file from executing any of the malicious content that may have been copied to the drive when it's plugged in.

In other words, say you vaccinate your USB drive. The tool writes an autorun.inf file that's harmless. When it's inserted in a computer that does not have autorun disabled, the computer will attempt to read and process the autorun.inf file from the inserted drive. If an infection that spreads to network or USB drives is present on the computer, the infection may very well succeed in putting the files on the drive, but they will not be able to overwrite the autorun.inf file and as such the files will not run without user input (i.e. actually clicking on them).

If the computer's infected and that infection tries to multiply to external drives, then yes, it'll likely copy some files to it. You could then remove those as they wouldn't be running automatically once the drive's inserted in another PC. Nothing you do will stop files from being copied over to an external drive if an infection of that type is present on the system. Well, technically you can prevent that by setting the write protect mode, but not every USB drive has one of those and it prevents writing anything to the drive.
Mark
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why won't my laptop work?

Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits
Become a BleepingComputer fan: Facebook and Twitter




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