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How to remove a virus (CSRXX.EXE) off of External HD


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#1 Son23

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Posted 18 May 2010 - 05:18 PM

Ok, so I asked this on another microsoft forum, but the help they provided, well, didn't help.

So I had to do a factory restore on my laptop recently because a program called CSRXX.EXE, an apparent worm, took complete control of my computer. This "application" would come up every time I would start my computer. I tried doing system restores, but most of the time the system restore would cause an error and not work. It wouldn't even let me into safe mode. Eventually, my desktop wouldn't come up at all so...there was really no choice.

While all of this was happening, I managed to back up all my important files, mostly pictures, audio, and word documents on my external hard drive (Western Digital Elements 1TB). My external hard drive already had important programs backed up on it as well. I was hoping that this would work, but as it turns out this virus spreads through USB. I went to an online scanner called ESET and when i would look for things to scan the virus appeared on my external hard drive...however the scan didn't see it as a threat because it didn't pick it up. The virus appears as this on the scanner: Posted Image also, according to some research that's how the virus will appear.

Someone in an old thread said that they didn't see a virus. I opened up the ESET scan settings as well as my external HD and if you look:
Posted Image

and if you cannot see what it says (since for some reason the picture looks smaller on photobucket)
Posted Image


*my resources: http://www.threatexpert.com/report.aspx?md...863da1cafea7b3f
http://www.microsoft.com/security/portal/T...tID=-2147337590
http://answers.yahoo.com/question/index?qi...2214425AAVQa3V*

According to my research, the virus appears as invisible, but if detected it appears as a fake recycle bin with "desktop" inside of it.

Now I didn't move the files back on my computer, so as far as I know my laptop doesn't have the virus again.

The last forum I was on told me to run a program called Malwarebytes and Spybot, which did not find anything on my external HD. In fact, the only way I can tell if the virus is still there is if I do an ESET scan. The ESET scan won't find the virus during the scan, but if you try to tell the scanner what to scan, the virus can be seen (refer to pictures above).

I need the files and programs on my external HD. I am an artist, writer, and voice actor. I animate toons and voice in my own plus online toons. Plus some pictures I drew I got paid to draw, so I can't afford to lose any of these files. The programs I can always reinstall, but the pictures, documents, and audio I cannot replace...at all. So I am asking, is there any way I can rid myself of this virus without harming my files, or if there is any way to transfer my data without losing my files? Please I really cannot afford to lose these files.



Thank you in advance.

Rob R.
~Son

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#2 boopme

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Posted 18 May 2010 - 11:46 PM

Hello Rob. we will need to do several things here.
First run TFC by OT
Please download TFC by Old Timer and save it to your desktop.
alternate download link
Save any unsaved work. TFC will close ALL open programs including your browser!
Double-click on TFC.exe to run it. If you are using Vista, right-click on the file and choose Run As Administrator.
Click the Start button to begin the cleaning process and let it run uninterrupted to completion.
Important! If TFC prompts you to reboot, please do so immediately. If not prompted, manually reboot the machine anyway to ensure a complete clean.

Now Drweb-cureit
Before we start fixing anything you should print out these instructions or copy them to a NotePad file so they will be accessible. Some steps will require you to disconnect from the Internet or use Safe Mode and you will not have access to this page.

Please download Dr.Web CureIt and save it to your desktop. DO NOT perform a scan yet.
alternate download link
Note: The file will be randomly named (i.e. 5mkuvc4z.exe).

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 Dr.Web CureIt as follows:
  • Double-click on the randomly named file to open the program and click Start. (There is no need to update if you just downloaded the most current version
  • Read the Virus check by DrWeb scanner prompt and click Ok where asked to Start scan now? Allow the setup.exe to load if asked by any of your security programs.
  • The Express scan will automatically begin.
    (This is a short scan of files currently running in memory, boot sectors, and targeted folders).
  • If prompted to dowload the Full version Free Trial, ignore and click the X to close the window.
  • If an infected object is found, you will be prompted to move anything that cannot be cured. Click Yes to All. (This will move any detected files to the C:\Documents and Settings\userprofile\DoctorWeb\Quarantine folder if they can't be cured)
  • After the Express Scan is finished, put a check next to Complete scan to scan all local disks and removable media.
  • In the top menu, click Settings > Change settings, and uncheck "Heuristic analysis" under the "Scanning" tab, then click Apply, Ok.
  • Back at the main window, click the green arrow "Start Scanning" button on the right under the Dr.Web logo.
  • Please be patient as this scan could take a long time to complete.
  • When the scan has finished, a message will be displayed at the bottom indicating if any viruses were found.
  • Click Select All, then choose Cure > Move incurable.
  • In the top menu, click file and choose save report list.
  • Save the DrWeb.csv report to your desktop.
  • Exit Dr.Web Cureit when done.
  • Important! Reboot your computer because it could be possible that files in use will be moved/deleted during reboot.
  • After reboot, post the contents of the log from Dr.Web in your next reply. (You can use Notepad to open the DrWeb.cvs report)


Next run MBAM (MalwareBytes):

Please download Malwarebytes Anti-Malware (v1.46) and save it to your desktop.alternate download link 1
alternate download link 2
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:
    • 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.
We also need to clean the flash drive.

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.
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