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Proxy settings repopulate themselves


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I recently encountered a problem with proxy settings repopulating themselves with


http=;https= -loopback

I went through several topics here looking at this, and it seems this may have quite a few different causes. At first, I manually located a weird InstallShield process in Task Manager and deleted file related to it. Later I ran ADWCleaner, which found

***** [ Tasks ] *****

PUP.Optional.PrxySvrRST, InstallShield® Update Service Scheduler
PUP.Optional.PrxySvrRST, Optimize Thumbnail Cache Files

Both of these were removed using ADWCleaner.

After restarting the PC, problem persisted. Scanning with Malwarebytes found things as follows:

Folder: 1

Trojan.BitCoinMiner, C:\USERS\RADEK\APPDATA\ROAMING\IDLE, Quarantined, [69], [470356],1.0.4130

File: 3
Trojan.BitCoinMiner, C:\USERS\RADEK\APPDATA\ROAMING\IDLE\IDLE.EXE, Quarantined, [69], [470356],1.0.4130
PUP.Optional.FFHijacker.Generic, C:\PROGRAM FILES (X86)\MOZILLA FIREFOX\DEFAULTS\PREF\-1871373515.JS, Quarantined, [5837], [392915],1.0.4130
PUP.Optional.FFHijacker.Generic, C:\PROGRAM FILES (X86)\MOZILLA FIREFOX\-1871373515.CFG, Quarantined, [5837], [392916],1.0.4130


All of these have been moved to quarantine and deleted. Sadly, the problem still occurs - proxy settings repopulate themself. Please note that "Use a proxy server" DOES NOT turn to on automatically. It previously did, but stopped after deleting suspicious InstallShield file (still got it in Recycle Bin).

Attaching FRST report, Addition and latest Malwarebytes Scan report.




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  • Root Admin

Please download the attached fixlist.txt file and save it to the Desktop.
NOTE. It's important that both files, FRST or FRST64 and fixlist.txt are in the same location or the fix will not work.

NOTICE: This script was written specifically for this user, for use on this particular machine. Running this on another machine may cause damage to your operating system.

Run FRST or FRST64 and press the Fix button just once and wait.
If the tool needs a restart please make sure you let the system restart normally and let the tool complete its run after restart.
The tool will make a log on the Desktop (Fixlog.txt). Please attach or post it to your next reply.

Note: If the tool warned you about an outdated version please download and run the updated version.






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  • Root Admin

Great, let me have you run the following to make sure all is clean.


Please run the following steps and post back the logs as an attachment when ready.


  • If you're already running Malwarebytes 3 then open Malwarebytes and check for updates. Then click on the Scan tab and select Threat Scan and click on Start Scan button.
  • If you don't have Malwarebytes 3 installed yet please download it from here and install it.
  • Once installed then open Malwarebytes and check for updates. Then click on the Scan tab and select Threat Scan and click on Start Scan button.
  • Once the scan is completed click on the Export Summary button and save the file as a Text file to your desktop or other location you can find, and attach that log on your next reply.
  • If Malwarebytes won't run then please skip to the next step and let me know on your next reply.


Please download AdwCleaner by Malwarebytes and save the file to your Desktop.

  • Right-click on the program and select RunAsAdmin.jpg Run as Administrator to start the tool.
  • Accept the Terms of use.
  • Wait until the database is updated.
  • Click Scan.
  • When finished, please click Clean.
  • Your PC should reboot now if any items were found.
  • After reboot, a log file will be opened. Copy its content into your next reply.


RESTART THE COMPUTER Before running Step 3

Please download the Farbar Recovery Scan Tool and save it to your desktop.

Note: You need to run the version compatible with your system. You can check here if you're not sure if your computer is 32-bit or 64-bit

  • Double-click to run it. When the tool opens, click Yes to disclaimer.
  • Press the Scan button.
  • It will make a log (FRST.txt) in the same directory the tool is run. Please attach it to your reply.
  • The first time the tool is run, it also makes another log (Addition.txt). If you've, run the tool before you need to place a check mark here.
  • Please attach the Additions.txt log to your reply as well.





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