4 replies to this topic

[publicRMR]

My internet quit working today, and I was able to troubleshoot the problem to a PC, I ran a Malwarebytes scan and it found several things, one of which is this Backdoor bot, file location C:\WINDOWS\System32\secupdat.dat. the other items were removed, this particular one is never deleted. It states that it will delete it after a reboot, but that never happens, or the file is recreated. Also when browsing to the folder there is no such file.

Curious as to what steps I can take to eliminate this problem, my internet connection is extreamly slow if I have this PC on the network. speed improves greatly when it is taken off.

Thank you for your time,
Ryan

[AdvancedSetup]

Please download ComboFix from Here or Here to your Desktop.

**Note: In the event you already have Combofix, this is a new version that I need you to download. It is important that it is saved and renamed following this process directly to your desktop**

• If you are using Firefox, make sure that your download settings are as follows:
  
  • Tools->Options->Main tab
    
  • Set to "Always ask me where to Save the files".
• During the download, rename Combofix to Combo-Fix as follows:
  
  
  
  
  
  
  
• It is important you rename Combofix during the download, but not after.
  
• Please do not rename Combofix to other names, but only to the one indicated.
  
• Close any open browsers.
  
• Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix.
  

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  • Very Important! Temporarily disable your anti-virus, script blocking and any anti-malware real-time protection before performing a scan. They can interfere with ComboFix or remove some of its embedded files which may cause "unpredictable results".
    
  • Click on this link to see a list of programs that should be disabled. The list is not all inclusive. If yours is not listed and you don't know how to disable it, please ask.
    

    -----------------------------------------------------------

  • Close any open browsers.
    
  • WARNING: Combofix will disconnect your machine from the Internet as soon as it starts
    
  • Please do not attempt to re-connect your machine back to the Internet until Combofix has completely finished.
    
  • If there is no internet connection after running Combofix, then restart your computer to restore back your connection.

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• Double click on combo-Fix.exe & follow the prompts.
  
• When finished, it will produce a report for you.
  
• Please post the "C:\Combo-Fix.txt" along with a new HijackThis log for further review.

**Note: Do not mouseclick combo-fix's window while it's running. That may cause it to stall**

If you still cannot get this to run, try booting into Safe Mode, and run it there.

To boot into Safe Mode, tap F8 after BIOS, and just before the Windows logo appears. A list of options will appear, select "Safe Mode."

If this doesn't work either, try the same method (above method), but name Combofix.exe to iexplore.exe instead, or winlogon.exe..
This because It also happens in some cases that malware blocks EVERY process except for what is in its own whitelist, so this whitelist also includes system important processes such as iexplore.exe, explorer.exe, winlogon.exe...

[AdvancedSetup]

Please post an update on this. Thanks.

[AdvancedSetup]

are you still with us?

[AdvancedSetup]

Due to the lack of feedback this Topic is closed to prevent others from posting here. 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!

The fixes and advice in this thread are for this machine only. Do not apply the instructions from this thread to your own machine. Please start a new thread describing your issue and someone will be along to assist you.