Operating System
Windows 10
Infection date and initial symptoms
21-10-2018 - Firefox suddenly crashed out of nowhere.
Current issues and symptoms
Avast now repeatedly finds virusses in the following directory: C:\Users\[username]\AppData\Roaming\Microsoft\Windows\Templates\FileZilla Server
Steps taken in order to remove the infection
- Avast scan
- Windows defender scan
- Malwarebytes antimalware scan
- TDSSKiller scan
- HijackThis -- look for suspiscious signs
- ESET Online scan
- HouseCall scan
- msert scan
System logs
Yes, I've uploaded the FRST.txt logs
Yes, I've uploaded both FRST.txt and Addition.txt logs


New Member
Hi everyone,

On my Windows10 machines, I've recently switched from Malwarebytes Anti-Malware Pro to Avast, as the first seemed to have conflicts with Windows Defender. After I made the switch, Avast now repeatedly finds virusses in the following directory: C:\Users\[username]\AppData\Roaming\Microsoft\Windows\Templates\FileZilla Server
Avast quarantines the infected files and when I close my Firefox browser, I can even delete the entire Filezilla directory with everything in it but it keeps coming back and Avast keeps finding infected files, such as: default.ocx, f.bat and data.bin.

I know FileZilla is an ftp program but I never installed anything of the likes, so I'm pretty sure one or other process keeps spawning stuff after every reboot and any virus scan I perform can't get a graps on it.

Does this sound familiar to anyone and if yes, does anyone know of a good plan of attack of finding out what I'm dealing with and how to put an end to it? I'd be grateful for any help offered.




Reactions: shmu26


Removal Expert
Staff member

Scan with Malwarebytes' Anti-Malware

Please download Malwarebytes Anti-Malware and save it to your desktop.
  • Install the progam.
  • Click the Scan tab, choose Threat Scan is checked and click Start Scan.
  • If threats are detected, click the Quarantine Selected button. You will now be prompted to reboot. Click Yes.
  • Upon completion of the scan (or after the reboot), click the Reports tab.
  • Double-click the Scan Log.
  • At the bottom click Export and choose Text file.
Save the file to your desktop and include its content in your next reply.


New Member
Hi and thanks for your reply.
I had already done the MalwareBytes scan. That is why I listed it in my topic description.
I did the scan again, however but it says the same as before: Threats detected: 0


Removal Expert
Staff member
Fix with Farbar Recovery Scan Tool

This fix was created for this user for use on that particular machine.

Running it on another one may cause damage and render the system unstable.

Download attached fixlist.txt file and save it to the Desktop:

Both files, FRST and fixlist.txt have to be in the same location or the fix will not work!

  • Right-click on
    icon and select
    Run as Administrator to start the tool.
    (XP users click run after receipt of Windows Security Warning - Open File).
  • Press the Fix button just once and wait.
  • If for some reason the tool needs a restart, please make sure you let the system restart normally. After that let the tool complete its run.
  • When finishes FRST will generate a log on the Desktop, called Fixlog.txt.
Please attach it to your reply.


Reactions: oldschool


New Member

Thanks for the quick reply again. Someone else suggested fixlist with FRST as well today but with a more extensive script in it. I just checked and these two exact entries you mentioned were in there as well, so that's good, I guess. :)


Reactions: oldschool