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Chasing shortcuts on mass storage devices


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5 replies to this topic

#1 meancheese

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Posted 30 August 2010 - 07:08 AM

Ok, so first post here and it figures it's always the little things that get me stuck. I'm deployed in the Army and am the go-to guy for tech problems in my unit, which seem to be doubling by the week. So far, i've squashed most of them, but recently, the almost-hobby of portable-drive-transferring collections of movies and whatnot has been infiltrated with an odd problem that's gone past that to simple sd cards and flash drives.

Instance 1. When normal operating flash drive is plugged in to be copied onto from the owner's pc, no shortcuts were copied, but actual folders and files saved on the desktop. When plugged into the recipient's pc, all the folder names are correct, however, they've all been magically turned into shortcuts. When I looked at the target, it shows a drive letter and strange screensaver file name, of all things (ie: F:\siodo.scr). Of course, the folders go nowhere and are all reduced to a kb.

Instance 2. My roommate used his portable hard drive with no apparent problem earlier today. His new camera uses MicroSD and he used an adapter to insert into his onboard card reader to download pictures. Same exact problem happened as in the first instance. He told me about it and before I thought to stop him, he plugged his hard drive back in. Again, same thing. However, the 500GB drive shows 298 used, which is about right for all the movies and misc pics that are on there. When the drive is opened and all folders selected, size amounts to a whopping 700+KB. Also, the icon representing the drive under My Computer has changed from a hard drive to a folder.

Instance 3. I did the unforgivable...I put his sd card in my laptop to diagnose. Good thing is, I'm well protected. After wiping it immediately, I scanned my computer. The virus detected was W32/Vobfus.EQ located directly under my user folder in the file jaemaat.exe. It obviously wasn't there or noticable before or I would've seen such a strange name.

So, I've noticed only the folders are affected, all computers involved are on the network provided over here and run by contractors, all the target locations seem like possible words or partial words/names of the contractor's leading nationality of employees, the contents of the drives are all desirable and/or valuable content, and the data seems to be there, but not accessible.

I know it's a lot of info, but I know it helps to have as much to work on as you can. Any help would be greatly appreciated, as people are starting to 'lose' precious information left and right over here with fewer people to pull from. Thanks.

Edited by hamluis, 30 August 2010 - 11:19 AM.
Moved from External Hardware to Am I Infected ~ Hamluis.

Who are you? I know you? Handy with a computer? Psshhh. Shyeah..humpph...he-Ok, just give me the damn thing!

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#2 test46

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Posted 30 August 2010 - 08:19 AM

This sound like malware, You should run flash disinfector on all flash drives and computers that they are being plugged into,
then run Malwarebytes on them.


Download and Run FlashDisinfector
  • Please download 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 including your mobile phone. Please do so and allow the utility to clean up those drives as well.
  • Wait until it has finished scanning and then exit the program.
  • Reboot your computer when done.
Note: Flash_Disinfector will create a hidden file named autorun.inf in each partition and every USB drive plugged in when you ran it. Don't delete this folder. It will help protect your drives from future infection.



Please download Malwarebytes' Anti-Malware from Here

Note: If you already have Malwarebytes' Anti-Malware, just update then run it.
  • Double Click mbam-setup.exe to install the application.
  • Make sure a checkmark is placed next to Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish.
  • If an update is found, it will download and install the latest version.
  • Once the program has loaded, select "Perform Quick Scan", then click Scan (the scan may take some time to finish, so please be patient).
  • When the scan is complete, click OK, then Show Results to view the results.
  • Make sure that everything is checked, and click Remove Selected.
  • When disinfection is completed, a log will open in Notepad and you may be prompted to Restart.(See Extra Note)
  • The log is automatically saved by MBAM and can be viewed by clicking the Logs tab in MBAM.
  • Copy and Paste the entire report in your next reply .
Note: If MBAM encounters a file that is difficult to remove,you will be presented with 1 of 2 prompts, click OK to either and let MBAM proceed with the disinfection process,if asked to restart the computer,please do so immediatly.

#3 s1lents0ul

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Posted 30 August 2010 - 09:04 AM

A malware response team member must provide you the assistance you require, post in "Am i infected, what do i do" thread
==]--s1lents0ul-->

#4 Blade

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Posted 07 September 2010 - 11:12 AM

Hi meancheese and :thumbsup: to Bleeping Computer.

I apologize for the delay in reply.

Let's begin with this.

Please download RKill by Grinler from one of the 4 links below and save it to your desktop.

Link 1
Link 2
Link 3
Link 4
  • Before we begin, you should disable any anti-malware software you have installed so it does not interfere with RKill running. This is because some anti-malware software mistakenly detects RKill as malicious. Please refer to this page if you are not sure how to disable your security software.
  • Double-click on Rkill on your desktop to run it. (If you are using Windows Vista, please right-click on it and select Run As Administrator)
  • A black screen will appear and then disappear. Please do not worry, that is normal. This means that the tool has been successfully executed.
  • If nothing happens or if the tool does not run, please let me know in your next reply

    ***************************************************

    Please download 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.

    ***************************************************

    Please download Malwarebytes Anti-Malware and save it to your desktop.
    alternate download link 1
    alternate download link 2

    IMPORTANT!!! - when you save the file, rename it to something random, such as bubbles.exe This must be done before beginning the download!

    MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.
    • 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:[list]
    • 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 definition 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. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
  • Exit MBAM when done.
Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.

~Blade


In your next reply, please include the following:
Malwarebytes Log

Posted Image

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#5 meancheese

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Posted 10 September 2010 - 01:32 PM

Well Blade, it seems RKILL was what I was missing. The instructions I waa following was kinda working but there it still cropped up again and whenever I tried to kill it, it's be shady whenever it wanted to work. I had already performed the process I had been over the last few days right before I saw your post, so either everything did what it was supposed to, or it was actually clean. Here's the log:

Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 4590

Windows 6.0.6001 Service Pack 1
Internet Explorer 8.0.6001.18943

9/10/2010 10:54:06 PM
mbam-log-2010-09-10 (22-54-06).txt

Scan type: Quick scan
Objects scanned: 152016
Time elapsed: 7 minute(s), 6 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)
Who are you? I know you? Handy with a computer? Psshhh. Shyeah..humpph...he-Ok, just give me the damn thing!

#6 Blade

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Posted 13 September 2010 - 02:16 AM

Hello.

Please download GMER from one of the following locations and save it to your desktop:
  • Main Mirror
    This version will download a randomly named file (Recommended)
  • Zipped Mirror
    This version will download a zip file you will need to extract first. If you use this mirror, please extract the zip file to your desktop.
  • Disconnect from the Internet and close all running programs.
  • Temporarily disable any real-time active protection so your security programs will not conflict with gmer's driver.
  • Double-click on the randomly named GMER file (i.e. n7gmo46c.exe) and allow the gmer.sys driver to load if asked.
  • Note: If you downloaded the zipped version, extract the file to its own folder such as C:\gmer and then double-click on gmer.exe.

    Posted Image
  • GMER will open to the Rootkit/Malware tab and perform an automatic quick scan when first run. (do not use the computer while the scan is in progress)
  • If it gives you a warning about rootkit activity and asks if you want to run scan...click on NO, then use the following settings for a more complete scan.
  • In the right panel, you will see several boxes that have been checked. Uncheck the following ...
    • IAT/EAT
    • Drives/Partition other than Systemdrive (typically C:\)
    • Show All (don't miss this one)
  • Then click the Scan button & wait for it to finish.
  • Once done click on the [Save..] button, and in the File name area, type in "Gmer.log" or it will save as a .log file which cannot be uploaded to your post.
  • Save it where you can easily find it, such as your desktop, and copy/paste its contents in your next reply.
  • Exit GMER and re-enable all active protection when done.
-- If you encounter any problems, try unchecking the Devices box in addition to the others previously requested. Also, try running GMER in Safe Mode.
**Caution**
Rootkit scans often produce false positives. Do NOT take any action on any "<--- ROOKIT" entries


~Blade


In your next reply, please include the following:
GMER log

Posted Image

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