Trojan infection, shylock?

[psychoaki]

Hi

My PC got infected with a malware where all the files on a usb stick/pen drive have turned to a .lnk shortcut. So I ran my anitvirus program and malwarebytes and quarantine all scanned objects in Windows 7 safe mode. When I normally boot Windows 7 I cannot run mbam. Please find attached the mbam log file. However, after removal of some identified objects I still have the same problem and nothing seems to work. I have also used Combofix (please find .log attached) , and I still have the same problem. Some of the found objects are kvwpjmygvjs, a Trojan.LNK.Gen, js.proslikefan.13. 

I am happy about any help given

Thanks in advance.

 

log.txt

mbam-log-2015-07-21 (17-32-49).xml

mbam-log-2015-07-21 (18-00-02).xml

[kevinf80]

Hello and welcome to Malwarebytes.org

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Next,

Change the download folder setting in the default Browser so all tools we may use are saved to the Desktop:

Google Chrome - Click the "Customize and control Google Chrome" button in the upper right-corner of the browser.
Choose Settings. at the bottom of the screen click the
"Show advanced settings..." link. Scroll down to find the Downloads section and click the Change... button. Select your desktop and click OK.

Mozilla Firefox - Click the "Open Menu" button in the upper right-corner of the browser. Choose Options. In the downloads section, click the Browse button, click on the Desktop folder and the click the "Select Folder" button. Click OK to get out of the Options menu.

Internet Explorer - Click the Tools menu in the upper right-corner of the browser. Select View downloads. Select the Options link in the lower left of the window. Click Browse and select the Desktop and then choose the Select Folder button. Click OK to get out of the download options screen and then click Close to get out of the View Downloads screen.
NOTE: IE8 Does not support changing download locations in this manner. You will need to download the tool(s) to the default folder, usually Downloads, then copy them to the desktop.

Next,

Follow the instructions in the following link to show hidden files:

http://www.bleepingcomputer.com/tutorials/how-to-see-hidden-files-in-windows/

Next,

Please open Malwarebytes Anti-Malware.

• On the Settings tab > Detection and Protection sub tab, Detection Options, tick the box "Scan for rootkits".
• Under Non-Malware Protection sub tab Change PUP and PUM entries to Treat detections as Malware
• Click on the Scan tab, then click on Scan Now >> . If an update is available, click the Update Now button.
• A Threat Scan will begin.
• With some infections, you may or may not see this message box.
  
          'Could not load DDA driver'
• Click 'Yes' to this message, to allow the driver to load after a restart.
• Allow the computer to restart. Continue with the rest of these instructions.
• When the scan is complete, click Apply Actions.
• Wait for the prompt to restart the computer to appear, then click on Yes.
• After the restart once you are back at your desktop, open MBAM once more.
  

To get the log from Malwarebytes do the following:

• Click on the History tab > Application Logs.
• Double click on the scan log which shows the Date and time of the scan just performed.
• Click Export > From export you have three options:
  
    Copy to Clipboard - if seleted right click to your reply and select "Paste" log will be pasted to your reply
    Text file (*.txt)        - if selected you will have to name the file and save to a place of choice, recommend "Desktop" then attach to reply
    XML file (*.xml)      - if selected you will have to name the file and save to a place of choice, recommend "Desktop" then attach to reply
• Recommend you use "Copy to Clipboard, then Right click to your reply > select "Paste" that will copy the log to your reply…
  

If Malwarebytes is not installed follow these instructions first:

Download Malwarebytes Anti-Malware to your desktop.

• Double-click mbam-setup and follow the prompts to install the program.
• At the end, be sure a checkmark is placed next to the following:
• Launch Malwarebytes Anti-Malware
• A 14 day trial of the Premium features is pre-selected. You may deselect this if you wish, and it will not diminish the scanning and removal capabilities of the program.
• Click Finish. Follow the instructions above....
  

Next,

Download Farbar Recovery Scan Tool and save it to your desktop.

Note: You need to run the version compatible with your system (32 bit or 64 bit). If you are not sure which version applies to your system download both of them and try to run them. Only one of them will run on your system, that will be the right version.

If your security alerts to FRST either accept the alert or disable your security and allow FRST to run...

• Double-click to run it. When the tool opens click Yes to disclaimer.
• Press Scan button.
• It will make a log (FRST.txt) in the same directory the tool is run. Please copy and paste it to your reply.
• The first time the tool is run, it makes also another log (Addition.txt). Please attach it to your reply.
  

 

Thanks,

 

Kevin...

[psychoaki]

Thanks for your help. Please find attached the .log files.

 

mbamlog.txt

Addition.txt

FRST.txt

[kevinf80]

Why did you run FRST with the system in Safe mode with Networking?

 

Download attached fixlist.txt file (end of reply) and save it to the Desktop, or the folder you saved FRST into.
NOTE. It's important that both FRST and fixlist.txt are in the same location or the fix will not work.

Run FRST and press the Fix button just once and wait.
The tool will make a log on the Desktop (Fixlog.txt) or the folder it was ran from. Please post it to your reply.
 

Next,

 

Boot to normal mode...

 

Download AdwCleaner by Xplode onto your Desktop.

• Double click on Adwcleaner.exe to run the tool.
• Click on Scan
• Once the scan is done, click on the Clean button. <<<--- Ensure this option is completed
• You will get a prompt asking to close all programs. Click OK.
• Click OK again to reboot your computer.
• A text file will open after the restart. Please post the content of that logfile in your reply.
• You can also find the logfile at C:\AdwCleaner[sn].txt. Where n in the scan reference number
  

 
Next,
 
Please download Junkware Removal Tool to your desktop.

• Shut down your protection software now to avoid potential conflicts. (re-enable when done)
• Run the tool by double-clicking it. If you are using Windows Vista, 7, or 8; instead of double-clicking, right-mouse click JRT.exe and select "Run as Administrator".
• The tool will open and start scanning your system.
• Please be patient as this can take a while to complete depending on your system's specifications.
• On completion, a log (JRT.txt) is saved to your desktop and will automatically open.
• Post the contents of JRT.txt into your next message.
  

 

Next,

 

Scan with ESET Online Scanner

This step can only be done using Internet Explorer, Google Chrome or Mozilla Firefox.
Temporary disable your AntiVirus and AntiSpyware protection - instructions here.
Please visit ESET Online Scanner website.

Click there Run ESET Online Scanner.

If using Internet Explorer:

• Accept the Terms of Use and click Start.
• Allow the running of add-on.
  

If using Mozilla Firefox or Google Chrome:

• Download esetsmartinstaller_enu.exe that you'll be given link to.
• Double click esetsmartinstaller_enu.exe.
• Allow the Terms of Use and click Start.
  

To perform the scan:

• Make sure that Remove found threats is unchecked.
• Scan archives is checked.
• In Advanced Settings: Scan for potentially unwanted applications, Scan for potentially unsafe applications and Enable Anti-Stealth technology are checked.
• Under “Enable Stealth Technology select “Change” select any extra drives in that window.
• Click Start
• The program will begin to download it's virus database. The speed may vary depending on your Internet connection.
• When completed, the program will begin to scan. This may take several hours. Please, be patient.
• Do not do anything on your machine as it may interrupt the scan.
• When the scan is done, click Finish.
• A logfile will be created at C:\Program Files (x86)\ESET\ESET Online Scanner. Open it using Notepad.
  

Please include this logfile in your next reply.

Don't forget to re-enable protection software!

 

next,

 

Uninstall Microsoft Security Essentials....  Removal tool available at the following link..

 

http://www.bleepingcomputer.com/download/microsoft-security-essentials-removal-tool/

 

Post those logs, also let me know if any remaining issues or concerns..

 

Thanks,

 

Kevin..

 

 

 

Fixlist.txt

[psychoaki]

Hi

Thank you very much for your help. Below are the .log files. I had to run the apps in safe mode because they did not open in normal mode.

Thanks again for your help

 

AdwCleanerS0.txt

eset.txt

Fixlog.txt

JRT.txt

[psychoaki]

Just to clearify, I did not delete any virus found by Eset and I still have the same problem with the .lnk creation on usb drives

Thanks again

[kevinf80]

ESET log identifies entries already in Combofix quarantine so no problem. The other entry classed as unsafe is in your downloads folder, you can safely delete that file..

 

Regarding USB devices, make sure they are unplugged; we do not wnat to run the risk of a reinfection.

 

Go to this link: http://www.mcshield.net/screenshots.html

 

Download and install McShield, that program will run at boot and scan all connected drives. It will also protect and scan any USB devices as they are plugged in after a boot...

 

Let me know the current status of your system, can you boot to normal mode, are there any other remaining issues or concerns....

 

Thank you,

 

Kevin...

[psychoaki]

Thanks again for your help. Unfortunately McShield did not find anything but I continue to have the same problems. Please find attached the .log file. Additionally I still can only run all anti-malware programs under windows safe mode. However, I can boot into normal mode but the anti-malware programs (only those) will not open then.

AllScans.txt

[kevinf80]

Click on "Start" type cmd.exe into the search box. cmd.exe will show, Right click on that entry and select "Run as Administrator" and click on OK.

Here I assume your pendrive as X:

Enter this command. Highlight the command then Right click - Copy. At the cmd prompt Right click - Paste

attrib -h -r -s /s /d x:\*.* hit the enter key...

Note : Replace the letter X with your flash drive letter....
 
Do the files now show OK?

 

Next,

 

Download RKill from here: http://www.bleepingcomputer.com/download/rkill/

There are three buttons to choose from with different names on, select the first one and save it to your desktop.

• Double-click on the Rkill desktop icon to run the tool.
• If using Vista or Windows 7/8, right-click on it and Run As Administrator.
• A black DOS box will briefly flash and then disappear. This is normal and indicates the tool ran successfully.
• A log pops up at the end of the run. This log file is located at C:\rkill.log. Please post this in your next reply.
• If you do not see the black box flash on the screen delete the icon from the desktop and go back to the link for the download, select the next button and try to run the tool again, continue to repeat this process using the remaining buttons until the tool runs. You will find further links if you scroll down the page with other names, try them one at a time.
• If the tool does not run from any of the links provided, please let me know.
  

 
When RKill completes try your security programs in Normal mode, Malwarebytes, then scan with your AV program... if the fail again continue as follows...
 
Next,
 
Run FRST one more time (try from Normal mode), ensure all boxes are checkmarked under "Whitelist" but only Addition.txt under "Optional scan" Select scan, when done post the two logs....
 
If FRST fails to run in Normal mode rename it to easy.com You will need to "show" file extensions first as follows:
 

• Click the Start menu. ...
• Type "folder options" (without the quotes). ...
• A dialog box with the title "Folder Options" will appear. ...
• Click to uncheck the box for "Hide extensions for known file types".
• Click the "Apply" button, then the "OK" button at the bottom of the dialog box.
  

 

When that is complete right click on FRST.exe and rename to easy.com Run the scan as listed above..

 

Thank you,

 

Kevin
 

[psychoaki]

Thank you again for your help. I could recover the files from the USB drives but still continue to have the same problems on my PC. RKill ran under normal mode but First did not work, even after renaming it to easy.com. It opened correctly but then searched for an update and it quit after updating. I have tried it several times with the same "success". So I ran it under safe mode. Please find attached the logs. Unfortunatelty it did not help-

Thanks again

Rkill.txt

Addition.txt

FRST.txt

[kevinf80]

Do you have access to another PC to create the Widows Defender Offline Tool, I give the instructions to load to a USB flash drive. It can also be run from a CD, just change to that option in the instructions…

It can be created from the PC with issues, but a different clean PC is preferred!

Download the tool from here :- http://windows.microsoft.com/en-US/windows/what-is-windows-defender-offline and save to the Desktop.

You will have to select the correct version for your system, either 32 or 64 bit

Run the tool, Windows 7 or Vista user right click and select "Run as Administrator"

Read the instructions in the new window and select "Next"

 

 

In the new window accept the agreement:

 

 

In the new window select your USB Flash Drive, then select "Next"

 

 

In the new window ensure you Flash drive is selected, if not click on "Refresh" then select "Next"

 

 

In the new window accept the formatting alert by selecting "Next"

 

 

Files will be Downloaded:

 

 

Files will be processed and created

 

 

Flash drive will be formatted and prepared

 

 

Files will be added to the Flash Drive and the tool will be created.

 

 

The procedure is finished and the Tool created, click on "Finish" to complete.

 

 

Plug the USB into the sick PC and boot up, if it does not boot from the flash drive change the boot options as required, Use F12 as it boots, change options...

As it boots you`ll see files being loaded and the windows splash screen, eventually the tool will run a "Quick Scan" follow the prompts and deal with what it finds.

When complete do a full scan, deal with what it finds.

When finished, remove the USB stick then press the Esc key to boot into regular windows.

Navigate to the following file:

"C:\Windows\Windows Defender Offline\Support\MPLog-MM/DD/YYYY-HH/MM/SS .txt"

Open with notepad and copy and paste it into a reply.....

 

Thanks,

 

Kevin..

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