Jump to content

Recommended Posts

Hello,

 

I'm writing this post topic because I just read how one of the forum members helped Robin2020 remove a ywnmon32.exe malware he got on his computer the same way I got mine, and around the same date too (July 7, 2014).

 

I also got a message stating that I needed to download Java in order to see a real estate website and when I did the virus was downloaded. The virus is not preventing me from using my laptop and the "browsing" effects of the worm have been "neutralized", I think. However, on startup, a pop-up window displaying "Invisible Browser" still shows up and then it disappears.

 

I have located the file on my local drive as well as the ywnmon32.exe shortcut on the Startup folder under All Programs, but I'm unable to uninstall it from there and I also understand that deleting the source folder under Program Files won't do anything either, so I haven't even tried that.

 

I have attached the log files Addition.txt and FRST.txt after running the Farbar Recovery Scan Tool.

 

Please help!

Addition.txt

FRST.txt

Link to post
Share on other sites

Hi & :welcome:

My name is Jürgen and I will be assisting you with your Malware related problems.

Before we move on, please read the following points carefully. :excl:

  • My first language is not english. So please do not use slang or idioms. It could be hard for me to read. Thanks for your understanding.
  • Please read my instructions completely. If there is anything that you do not understand kindly ask before proceeding.
  • Perform everything in the correct order. Sometimes one step requires the previous one.
  • If you have any problems while you are follow my instructions, Stop there and tell me the exact nature of your problem.
  • Do not run any other scans without instruction or Add/ Remove Software unless I tell you to do so. This would change the output of our tools and could be confusing for me.
  • Post all Logfiles as a reply rather than as an attachment unless I specifically ask you. If you can not post all logfiles in one reply, feel free to use more posts.
  • If I don't hear from you within 3 days from this initial or any subsequent post, then this thread will be closed.
  • Stay with me. I will give you some advice about prevention after the cleanup process. Absence of symptoms does not always mean the computer is clean.
Step 1

Please download adwcleaner.png AdwCleaner (by Xplode) and save it to your Desktop.

  • Double click on AdwCleaner.exe to run the tool.

    Vista/Windows 7/8 users right-click and select "Run As Administrator"

  • Click on the Scan button.
  • After the scan has finished, click on the Clean button.
  • Press OK when asked to close all programs and follow the onscreen prompts.
  • After rebooting, a log file (that is saved in C:\AdwCleaner[s#].txt) will open automatically.

    Copy and paste the contents of that logfile in your next reply.

Step 2

Please download combofix.pngCombofix (by sUBs) and save it to your Desktop.

  • Disable the realtime-protection of your antivirus and anti-malware programs because they might interfere with the scan.
  • Start Combofix.exe and follow its instructions.
  • Do not use the computer while the scan is running. This may cause the program to stall.
  • When finished, a log file will be displayed (that can also be found at C:\Combofix.txt).

    Please copy and paste the contents of this file into your next post.

Note: If you receive an error "Illegal operation attempted on a registry key that has been marked for deletion." after the scan, just restart the computer.
Link to post
Share on other sites

Hi,

Step 1

Scan with mbam.pngMalwarebytes Antimalware

  • Please update the database by clicking on the "Update Now" button.
  • Following the update and click "Settings" and go to "Detection and Protection"
  • Make sure "Scan for Rootkits" is checked.
  • Click on Dashboard, then click on Scan Now to start the scan.

    (If Malware or Potentially Unwanted Programs [PUPs] are found, you will receive a prompt so that you can decide what you want to do. I suggest "Quarantine". Click the button: Apply All Actions.)

  • A window with an option to view the detailed log will appear. Click on "View Detailed Log".
  • After viewing the results, please click on the "Copy to Clipboard" button and then OK.
  • Return to our forum. Paste your log into your next reply.
Step 2

frst.pngfrstscan.png

Start FRST with administator privileges.

  • Press the Scan button.
  • When finished, FRST will produce a log (FRST.txt) in the same directory the tool was run from.

    Please copy and paste the log in your next reply.

Link to post
Share on other sites

Hello,

 

Thanks for everything.

 

I still cannot paste anything directly into the reply window in this forum, so I have attached the results from the last two steps to this message.

 

I apologize. If you can figure out why is this happening, please let me know.

 

You are more then welcome! :)

Everything is fine!

 

Let's do a final check up:

Step 1

Please download the eset.pngESET Online Scanner and save it to your Desktop.

  • Disable the realtime-protection of your antivirus and anti-malware programs because they might interfere with the scan.
  • Start esetsmartinstaller_enu.exe with administartor privileges.
  • Select the option Yes, I accept the Terms of Use and click on Start.
  • Make sure that the option Remove found threats is NOT checked, and the option Scan archives is checked.
  • Now click on Advanced Settings and select the following:
    • Scan for potentially unwanted applications
    • Scan for potentially unsafe applications
    • Enable Anti-Stealth Technology

    [*]Click on Start. The virus signature database will begin to download. This may take some time.

    [*]When completed the Online Scan will begin automatically.

    Note: This scan might take a long time! Please be patient.

    [*]When completed select Uninstall application on close if you so wish, but make sure you copy the logfile first!

    [*]Now click on Finish

    [*]A log file is created at C:\Program Files\ESET\EsetOnlineScanner\log.txt.

    Copy and paste the content of this log file in your next reply.

Note: Do not forget to re-enable your antivirus application after running the above scan!

Link to post
Share on other sites

Hi,

Step 1

Please download tfc.pngTFC (by Oldtimer) and save it to your Desktop.

  • Start TFC.exe with administrator privileges.
  • Close all other running programs.
  • Click on Start.
  • Allow a reboot if one is requested.
After reboot, please run FRST again...

Step 2

frst.pngfrstscan.png

Start FRST with administator privileges.

  • Press the Scan button.
  • When finished, FRST will produce a log (FRST.txt) in the same directory the tool was run from.

    Please copy and paste the log in your next reply.

Link to post
Share on other sites

Hi,

what problems are still present after the following fix?

Step 1

frst.pngfrstfix.png

Please download the attached fixlist txt.gif and save it in the same directory as FRST.

  • Start FRST with Administrator privileges.
  • Press the Fix button.
  • When finished, a log file (Fixlog.txt) pops up and is saved to the same location the tool was run from.

    Please copy and paste its contents in your next reply.

fixlist.txt

After the reboot, please run FRST again...

Step 2

frst.pngfrstscan.png

Start FRST with administator privileges.

  • Make sure the following option is checked: addition.png
  • Press the Scan button.
  • When finished, FRST will produce two logs (FRST.txt and Addition.txt) in the same directory the tool was run from.

    Please copy and paste these logs in your next reply.

Link to post
Share on other sites

Hi,
something went wrong! Do you really used my fixlist? :)
 
Content:

Startup: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\ywnmon32.exe.lnkShortcutTarget: ywnmon32.exe.lnk -> C:\Program Files\Open JDK Explorer\ywnmon32.exe (No File)GroupPolicy: Group Policy on Chrome detected <======= ATTENTIONGroupPolicyUsers\S-1-5-21-1849110167-1886045962-3130968531-1005\User: Group Policy restriction detected <======= ATTENTIONS2 pcregservice; C:\Program Files\pcreg\pcreg.exe [X]S2 Util HulaToo; "C:\Program Files\HulaToo\bin\utilHulaToo.exe" [X]R1 wStLibG; C:\Windows\System32\drivers\wStLibG.sys [52928 2014-03-31] (StdLib)C:\Windows\System32\drivers\wStLibG.sysReboot:

Please try it again with the fixlist which is attached on post #10.

 

These fix should resolve the problem also:

 

I can no longer see the ywnmon32.exe and its folder under Program Files folder, however, I can still see the ywnmon32.exe under Startup under All Programs; even if its not running on startup at all.

 

:)

 

After Fix and reboot, please run FRST again and post/attach the log.

Link to post
Share on other sites

Hi,

 

If you want, you can change manually these entries in your chrome browser:

CHR DefaultSearchKeyword: conduit.searchCHR DefaultSearchProvider: Conduit Search

That's it! abklatsch.gif
Your logs look clean to me at the moment. icon_thumb.gif
We're gonna clean up everything now, close security holes on your computer and in the end I'll provide you with a list of security tips so you hopefully will not need our help anymore in the future.


My help is free for everybody.
If you want to support me fighting against malware or buy me a beer for the assistance you received, then you can consider a donation: btn_donate_SM.gif
Thank you!


Clean Upcleanupm.PNG

 

Uninstall Combofix:
Type "combofix /uninstall" in the run box (w7.png+R) and hit enter.
3w7i5uxa.png

Now we remove all the tools we used (including their logs and quarantine folders), restore your settings and delete old and infected system restorepoints:

  • You can uninstall programs that you had to install (e.g. MBAM or ESET Onlinescanner) in the control panel if you so wish.
  • Download delfix.pngDelFix (by Xplode) and save it to your Desktop.
    • Close all running programs and start delfix.exe.
    • Make sure that all available options are checked.
    • Click on Run
    • DelFix should remove all our tools and delete itself afterwards. I don't need the log file.
  • If there is still something left you can delete it manually.

Closing security holes

Many infections happen via drive-by downloads that run unnoticed in the background while the user visits an infected website. To achieve this malware exploits security holes in installed software (e.g. browser or its plugins). Older versions of such software often have lots of known exploitable holes. Therefor it's very important to always keep your software up-to-date.
The following software is outdated. Make sure you remove all old versions and install the current one instead if you need the program:


Mozilla Firefox 11.0
 

 

Tips

I recommend to read and follow the "16 simple and easy ways to keep your computer safe and secure on the Internet" (Link) by Lawrence Abrams.

Link to post
Share on other sites
  • Root Admin

Glad we could help. :)

If you need this topic reopened, please send a Private Message to any one of the moderating team members. Please include a link to this thread with your request. This applies only to the originator of this thread.

Other members who need assistance please start your own topic in a new thread. Thanks!

Link to post
Share on other sites
Guest
This topic is now closed to further replies.
  • Recently Browsing   0 members

    No registered users viewing this page.

Back to top
×
×
  • Create New...

Important Information

This site uses cookies - We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.