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Rundll32.exe wants to make changes


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#1 xlvsdeep

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Posted 16 January 2016 - 07:29 AM

Hello.

 

 

OS: Win10.

Sorry incase I made this is a wrong section. It appears this site could actually help me with this, since so far I am helpless with this issue.

 

So, yday while trying to modify my windows sounds, it pops up this question if I wish to let Runddl32 modify my computer (not exactly in those words since os not in english atm). Naturally I became instalty suspicious and spent rest of the day finding information and trying to catch the (potentional?)malware. So ofcourse I press No (or cancel), and have yet not pressed yes in this situation. Trying to open Sounds is so far only way I have made this question pop up.

 

These are not proper translations cause I dont have english as OS language.

 

this is the popup question all in all:

 

Programs name: Windows Host Process (Rundll32)

Confirmed Publesher: Microsoft Windows

Programs location: "C:\Windows\System32\rundll32.exe" shell32.dll,Control_RunDLL mmsys.cpl,,sounds

 

 

What I tried yesterday: Malicious software removal tool (Microsoft) <- founds nothing relevant to this issue

MalwareBytes (home, free) <- did not find anything to remove.

Full scan on Windows Defender <- founds nothing relevant to this issue

sfcscan on cmd three times <- removed sth else on first scan

CCleaner <- deleted bunch of crap but nothing relevant

WinThruster <- deleted something (apparently?) but turned out to want my wallet. Nothing relevant to this issue afaik.

RKill<- found nothing to stop

 

These are all I came up with. Did consider Combofix but apparently doesnt run on win10(?). I am considering maybe I should format my C disk. Other option is to wait for next update to my Windows which could potentially help (?)..

 

Not sure if this is relevant to the main issue: When trying to open a attached program in admin it only shows a blank window, so I have to find the program in the proper folders in order to open it in admin.

 

So I'd be happy to know what you think guys. If I left something unclear I will happily answer.

 

 

thanks, xlvsdeep


Edited by xlvsdeep, 16 January 2016 - 03:13 PM.


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#2 buddy215

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Posted 16 January 2016 - 08:05 AM

Welcome to BC...

 

Get rid of the Registry cleaner...WinThruster....and it may have brought along some its 'friends'. Registry cleaners are unneeded and in most cases are

promoted by scammers....just like you said....good at cleaning your wallet.

 

That message may have been legit.

 

Use the programs below to find and remove adware and malware.

 

Download AdwCleaner by Xplode onto your desktop.

  • Close all open programs and internet browsers.
  • Double click on adwcleaner.exe to run the tool.
  • Click on Scan button.
  • When the scan has finished click on Clean button.
  • Your computer will be rebooted automatically. A text file will open after the restart.
  • Please post the contents of that logfile with your next reply.
  • You can find the logfile at C:\AdwCleaner[S1].txt as well.
  • download Junkware Removal Tool to your desktop.
  • Shut down your protection software now to avoid potential conflicts.
  • 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
  • Hold down Control and click on this link to open ESET OnlineScan in a new window.
  • Click the esetonlinebtn.png button.
  • For alternate browsers only: (Microsoft Internet Explorer users can skip these steps)
  • Click on esetsmartinstaller_enu.exe to download the ESET Smart Installer. Save it to your desktop.
  • Double click on the esetsmartinstaller_enu.png icon on your desktop.
  • Check "YES, I accept the Terms of Use."
  • Click the Start button.
  • Accept any security warnings from your browser.
  • Under scan settings, check "Scan Archives" and "Remove found threats"
  • ESET will then download updates for itself, install itself, and begin scanning your computer. Please be patient as this can take some time.
  • When the scan completes, click List Threats
  • Click Export, and save the file to your desktop using a unique name, such as ESETScan. Include the contents of this report in your next reply.
  • Click the Back button.
  • Click the Finish button.
  • NOTE:Sometimes if ESET finds no infections it will not create a log.

“Every atom in your body came from a star that exploded and the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics...you are all stardust.”Lawrence M. Krauss
A 1792 U.S. penny, designed in part by Thomas Jefferson and George Washington, reads “Liberty Parent of Science & Industry.”

#3 xlvsdeep

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Posted 16 January 2016 - 10:44 AM

Hi again; wasnt sure if you wanted me to post all the logs or just ESET but all 3 down below.

AdwCleaner

***** [ Services ] *****


***** [ Folders ] *****

[-] Folder Deleted : C:\Users\Alex\AppData\Roaming\Solvusoft

***** [ Files ] *****

[-] File Deleted : C:\Windows\SysNative\roboot64.exe

***** [ DLLs ] *****


***** [ Shortcuts ] *****


***** [ Scheduled tasks ] *****


***** [ Registry ] *****

[-] Key Deleted : HKLM\SOFTWARE\Classes\S

***** [ Web browsers ] *****


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

:: "Tracing" keys removed
:: Winsock settings cleared

########## EOF - C:\AdwCleaner\AdwCleaner[C1].txt - [801 bytes] ##########

JRT

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Junkware Removal Tool (JRT) by Malwarebytes
Version: 8.0.2 (01.06.2016)
Operating System: Windows 10 Home x64
Ran by Alex (Administrator) on la 16.01.2016 at 15.31.51,82
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~




File System: 1

Successfully deleted: C:\Users\Alex\AppData\Local\crashrpt (Folder)



Registry: 0





~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Scan was completed on la 16.01.2016 at 15.32.27,07
End of JRT log
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

ESETScan

C:\AdwCleaner\Quarantine\C\Windows\SysNative\roboot64.exe.vir    a variant of Win64/Systweak.A potentially unwanted application    cleaned by deleting

 

 

Same popup still happening, booted pc afterwards too. Winthruster already uninstalled last night and apparently something was left behind it (removed by the first scan).

 

Please let me know what you think. If the intention was to only show the last scan logs and/if the other logs are ment to be private, would be pleased to be informed, so I can remove them.

 

 

Thank you again.


Edited by xlvsdeep, 16 January 2016 - 03:22 PM.


#4 buddy215

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Posted 16 January 2016 - 12:07 PM

Not sure but I think Ex-ladatut is old data from a previous Windows OS. In which case those files Eset found were inactive.

 

I think it best to start a new topic in the Malware Removal Forum by following the directions below.

 

 

Please follow the instructions in the Malware Removal and Log Section Preparation Guide starting at Step 6.

  • If you cannot complete a step, then skip it and continue with the next.
  • In Step 6 there are instructions for downloading and running FRST which will create two logs.

When you have done that, post your logs in the Virus, Trojan, Spyware, and Malware Removal Logs forum, NOT here, for assistance by the Malware Response Team.

Start a new topic, give it a relevant title and post your log(s) along with a brief description of your problem, a summary of any anti-malware tools you have used and a summary of any steps that you have performed on your own. If you cannot produce any of the required logs...start the new topic anyway. Explain that you followed the Prep. Guide, were unable to create the logs, and describe what happened when you tried to create them. A member of the Malware Removal Team will walk you through, step by step, on how to clean your computer.

After doing this, please reply back in this thread with a link to the new topic so we can close this one.

 

DO NOT bump your new topic. Wait for a response from one of the Team Members.


“Every atom in your body came from a star that exploded and the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics...you are all stardust.”Lawrence M. Krauss
A 1792 U.S. penny, designed in part by Thomas Jefferson and George Washington, reads “Liberty Parent of Science & Industry.”

#5 xlvsdeep

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Posted 16 January 2016 - 01:11 PM

Issue moved to: http://www.bleepingcomputer.com/forums/t/602484/rundll32-requests-allowance-to-make-changes/






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