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SebbeBro

I accidentally deleted a folder with a trojan in it, am I safe?

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So I was doing a full scan on the computer since I was paranoid that I had gotten infected when I accidentally entered a site and my desktop icons changed to blank papers for a split second. I found 4 malware: Adware.FusionCore, 2 Generic.Malware/Suspicous and a Trojan.Vonteera. I noticed that all of these was in a folder that I no longer needed (it was a backup folder of my SSD drive from my previous computer) so I just quarantined and removed them and restarted the system. But me being me I went directly to delete the entire folder and afterwards I noticed in the report that it said removal failed for trojan.vonteera and I realise that this is probably not good. I checked and the trojan was WINSTA.EXE located in D:\SSD DISKEN KOPIERAD\PROGRAM FILES (X86)\WINSTA\BIN\WINSTA.EXE and in this case SSD DISKEN KOPIERAD means SSD drive copied in swedish. I am currently performing a full scan again in order to see if it's still on my computer but even if it says my computer is clean, am I safe? I have the log for the scan with the trojan for you to see. As you may notice I canceled that scan because I had to leave in a while and I wanted to get rid of what I had found so I might even find something new in this scan.

Thanks in advance! -Sebastian

log.txt

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Hi,  Sebastian.

My name is Maurice. I will be helping and guiding you, going forward on this case.

Please follow my directions as we go along.  Please do not do any changes on your own without first checking with me.

If you will be away for more than 3 consecutive days,  do try to let me know ahead of time, as much as possible.

 

Please only just attach   all report files, etc  that I ask for as we go along.

 

First, you should let the current scan finish   and then attach a copy of that scan report.   Then I can review that.

and later, we can run some different scans.

 

The one executable file that was not removed before  ( on the old scan ) was

Trojan.Vonteera,     (   D :   )    \ SSD DISK COPIED \ PROGRAM FILES (X86) \ WINSTA \ BIN \ WINSTA.EXE, Removal Failed, 1081, 281591, 1.0.17948,, ame,

That is on the D drive.

.

After the current scan does finish,  I would like you to run a fresh readout diagnostic report.

 would appreciate  getting some key details from this machine in order to help you forward.
 NOTE: The tools and the information obtained is safe and not harmful to your privacy or your computer, please allow the programs to run if blocked by your system.

 

Do have patience while the report tool runs.  It may take several minutes.  Just let it run & take its time.  You may want to close your other open windows so that there is a clear field of view.

    Download Malwarebytes Support Tool
    
    
    Once the file is downloaded, open your Downloads folder/location of the downloaded file
    Double-click mb-support-1.5.3.749.exe  to run the report
        You may be prompted by User Account Control (UAC) to allow changes to be made to your computer. Click Yes to consent.
        
    Place a checkmark next to Accept License Agreement and click Next
    You will be presented with a page stating, "Get Started!"

    Do NOT use the button “Start repair” !
    Click the Advanced tab on the left column
    
    Click the Gather Logs button
    
    A progress bar will appear and the program will proceed with getting logs from your computer
   
    Upon completion, click a file named mbst-grab-results.zip will be saved to your Desktop. Click OK
    Please attach the ZIP file in your next reply.

 

Please know I help here as a volunteer.  and that I am not on 24 x 7.

Help on this forum is one to one.   Again, please be sure to ONLY attach report files  with your reply (s)  as we go along.  Do not do a copy / paste into main body.

Thank you,

Sincerely.

 

 

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Sorry for the delay, I have school and I'm only able to do this in the evening. But I feel really paranoid now since my last mbam scan didn't include as many files as my seperate scans of my disks feeling like it might've been forced to stop or something. Additionally on this startup of the computer I was only greeted by a black screen with my cursor and I had to restart the PC in order to be able to login. But here are the files.

mbst-grab-results.zip log.txt

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Hi.   By the way, do you have a first name you prefer to go by ?

Thanks for the reports.   Please keep in mind that that last startup could have been a  one off.  It may have been Windows not being able to load up with your normal login-account.

If you get a repeat of the black screen,  disconnect any hardware devices like printers, fax machines   and any CD or DVD  or USB-thumb-flash-drive.

and power off the pc.  Wait a minute.  Then power on and let system load normally.

.

Thank you for the reports.   This last custom scan with Malwarebytes for Windows  found no malware  and no P U P  ( potential unwanted program).

-Summary of scan-
Scan type: Custom scan
Search was started by: Manually
Result: Completed
Items searched: 2375909
Threats detected: 0
Quarantined items: 0

Time elapsed: 5 h, 34 min, 11 sec

 

.

You can check this system using another free tool at Microsoft.  For another opinion. 
The Microsoft Safety Scanner is a free stand-alone virus scanner that  can be used to scan for & remove malware or potentially unwanted software from a system. 
The download links & the how-to-run-the tool are at this link at Microsoft 
https://docs.microsoft.com/en-us/windows/security/threat-protection/intelligence/safety-scanner-download


  
take a minute to locate & then send the log that it made, named msert.log 
It should be at C:\Windows\debug\msert.log 
  
Sincerely.

Edited by Maurice Naggar

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Hi again! My first name is Sebastian but my friends have nicknamed me Sebbe if you'd rather use that. This startup didn't stay black but like the others since I realised I probably got infected it took relatively long for it to show me the login screen and a slower startup. I proceeded to do a scan of my computer with the tool you sent and I've got the report, but mid scan my computer basicaly turned off and as I desperately try to click and press my keys to see if it's still alive the fans stop and after 1 second turns on again and I get to login and to my surprise I see that the scan is still running like nothing ever happened and I let out a sigh of semi-relief. It was probably just my computer going into sleepmode after that I hadn't touched it for 15 minutes but it felt like the scan would not let it go into sleep mode and the period I did not do anything felt short considering it should've been 15 minutes.

msert.log

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Hello Sebbe.

Thanks for the report.   There were 2 threats detected and removed.    Results Summary:
----------------
Found HackTool:Win64/AutoKMS and Removed!

 

Hardware over-heating may cause the machine to power off.   Make sure your machine is not over-heating.

Another possible cause for going black, is , if the power saving setting is too short.

.

I would suggest a free scan with the ESET Online Scanner
Go to https://www.eset.com/us/home/online-scanner/

Look on the right side of the page.  Click Scan Now
It will start a download of "esetonlinescanner_enu.exe"
Save the file to your system, such as the Downloads folder, or else to the Desktop.

 

Go to the saved file, and double click it to get it started.
When presented with the initial ESET options, click on "Computer Scan".

Next, when prompted by Windows, allow it to start by clicking Yes
When prompted for scan type, Click on Full scan
Click on the radio selection "Enable ESET to detect and quarantine potentially unwanted applications"   and click on Start scan button.

 

Have patience.  The entire process may take an hour or more. There is an initial update download.
There is a progress window display.
You should ignore all prompts to get the ESET antivirus software program.   ( e.g.  their standard program).   You do not need to buy or get or install anything else.
When the scan is completed, if something was found, it will show a screen with the number of detected items.  If so, click the button marked “View detected results”.
Click The blue “Save scan log” to save the log.
If something was removed and you know it is a false finding, you may click on the blue ”Restore cleaned files”  ( in blue, at bottom).
Press Continue when all done.  You should click to off the offer for “periodic scanning”.

 

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Ok so I used this scan and found a lot more and there was a few errors with removal.

esetlog.txt

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I noticed that it removed ytd.exe and Uninstall.exe (for ytd) but doesn't that mean that the other files for ytd are still on my computer if it's not "uninstalled" like just removing the exe doesn't remove all it's code?

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I just realised that I am insanely stupid, I still have the folder with the trojan.vonteera in my recycle bin. Now I'm asking, should I restore it and try to remove the file with some antimalware program or am I fine if I just empty the recycle bin? 

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1 hour ago, SebbeBro said:

I just realised that I am insanely stupid, I still have the folder with the trojan.vonteera in my recycle bin. Now I'm asking, should I restore it and try to remove the file with some antimalware program or am I fine if I just empty the recycle bin? 

For sure .....Empty the recycle bin !

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The ESET scanner has their unique detections.   Most of what were removed were P U P   { Potenial Unwanted Programs ).

In the case of YTD,  Eset has tagged them as

C:\Program Files (x86)\GreenTree Applications\YTD Video Downloader\Uninstall.exe    en variant av Win32/YTDDownloader.F

Potentiellt oönskat program    rensad genom borttagning

C:\Program Files (x86)\GreenTree Applications\YTD Video Downloader\ytd.exe    en variant av Win32/YTDDownloader.A

Potentiellt oönskat program    rensad genom borttagning
 

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Ok so I have emptied the recycle bin and tried restarting the computer and it was faster booting up now, though there's still something off. Right before I click to login everytime I start up the screen blinks black once or twice which it didn't do before I seemingly got infected, is there anything else I could have like a rootkit or something? Or could these things be caused by a regular virus and I should try doing an antivirus scan instead of antimalware? Or is there any other tool I should use?

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The black screens are just usually some real quick task run by some scheduled task.   Most often those are hardware manufacturer related.

It is too big a jump to think it is some kind of infection.

We should only claim infection IF and only IF  a known / respected security tool reports it and with detail.

You had just recently run the ESET special scanner.   and before that, the Microsoft Safety Scanner 

and before that, Malwarebytes for Windows.

.

You may run a special scan with Malwarebytes.

Run a  new scan with Malwarebytes.
Start Malwarebytes from the Windows  Start menu.

Click Settings ( gear icon)   at the top right of Malwarebytes window.   We want to see the SETTINGS window.
Then click the SECURITY  tab.
Scroll down and lets be sure the line in SCAN OPTIONs for "Scan for rootkits" is ON
Click it to get it ON  if it does not show a blue-color
Now click the small X  to get back to the main menu window.

Click the SCAN button.
Select a Threat Scan ( which should be the default).
When the scan phase is done, be real sure you Review and have all detected lines items check-marked on each line on the left. That too is very critical.
Then click on Quarantine selected.

Be sure all items were removed. Then too, Repeat the scan one more time. It does not take long.
and again, be sure all detected items are removed.

Let it remove what it has detected.
 

 

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I proceeded to make such a scan as you recommended and nothing was found. 

log.txt

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Thank you for the log.   That is a perfect scan result.   There is no malware here.  NO rootkit.  No malware & no P U P.

Now just a different scan with a special anti-adware tool from Malwarebytes.

I  would suggest to download, Save, and then run Malwarebytes ADWCLEANER.
Please close Chrome and all other open web browsers after you have saved the Adwcleaner and before you start Adwcleaner scan.
Adwcleaner  detects factory Preinstalled applications too! 

Please download  Malwarebytes AdwCleaner https://downloads.malwarebytes.com/file/adwcleaner

 
Be sure to Save the file first, to your system.  Saving to the Downloads folder should be the default on your system.

 

Go to the folder where you saved Adwcleaner. Double click Adwcleaner  to start it.
At the prompt for license agreement, review and then click on I agree.

You will then see a main screen for Adwcleaner. ( if you do not see it right away, minimized the other open windows, so you can see Adwcleaner).
Then click on Dashboard button.
Click the blue button "Scan Now".

allow it a few minutes to finish the Scan.   Let it remove what it finds.
NOTE:  When it comes to the section "
Pre-installed applications

You can skip that.
Please find and send the Adwcleaner "C" clean report.
In Adwcleaner, click the "Reports" button.  Look at the list of reports for the latest date & type "Clean".
Double Click that line & it will open in Notepad.   Save the file to your system and then Attach that with your reply.

That C clean report will be the one with the most recent Date and time at folder  C:\AdwCleaner\Logs
Thanks.  Keep me advised.
 

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Ok I let it remove what it found

AdwCleaner[C00].txt

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Thanks.  Adwcleaner did a good cleanup of adware remains.   Good run.

This pc is good to go.

 

Lets get your web browsers more secure.

See this article on our Malwarebytes Blog
https://blog.malwarebytes.com/security-world/technology/2019/01/browser-push-notifications-feature-asking-abused/


  
You want to disable the ability of each web browser on this machine from being able to allow "push ads". That means Chrome, Firefox, or Edge browser (on Windows 10), or on Opera. 
Scroll down to the tips section "How do I disable them". 

If this pc has the Google Chrome browser, or the Brave browser, I suggest you install the Malwarebytes Browser guard for Chrome. 
To get & install the Malwarebytes Browser Guard extension for Chrome, 
  
Open this link in your Chrome   browser: 
https://chrome.google.com/webstore/detail/malwarebytes/ihcjicgdanjaechkgeegckofjjedodee
  
Then proceed with the setup. 
  
If the pc has Mozilla Firefox, to get & install the Malwarebytes Browser Guard  Firefox extension. 
Open this link in your Firefox browser:    
https://addons.mozilla.org/en-US/firefox/addon/malwarebytes/


Then proceed with the setup. 
That link is for English US.   There are other language version.  Just go to the very bottom right of the page and look at “Change language” list drop down.
.
 

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I disabled push ads and I added Malwarebytes Browser Guard. So my pc is clean from malware? Should I make a virus scan as well to make sure or are any viruses that I might've had as well removed too? If so is there any program you would recommend, Avast isn't what it used to be imo. Anyways I would like to take a moment to be grateful, I appreciate your time and thanks so much for helping me Maurice! If there's anything else I should do to be more secure I'll get to it.

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I would point out that this pc was scanned by 2 antivirus apps. The ESET online-scanner is a antivirus checker. The Microsoft Safety Scanner is also a virus scanner.

I do not recommend Avast since it does add add-ons.

I would point out your Windows 10 comes pre-built with its Windows Defender antivirus, which IS a strong powerful antivirus.

You can uninstall Avast and then Defender becomes the resident antivirus.   I highly recommend Defender.  This is not ye old windows defender from old days of XP or Vista or Windows 7.  It is a strong and full on powerful antivirus.

.

I am glad to have helped you.  I am going to tag this case for closure.

 

Best  practices & malware prevention:
Follow best practices when browsing the Internet, especially on opening links coming from untrusted sources.
First rule of internet safety: slow down & think before you "click".
Never click links without first hovering your mouse over the link and seeing if it is going to an odd address ( one that does not fit or is odd looking or has typos).

Free games & free programs are like "candy". We do not accept them from "strangers".

Never open attachments that come with unexpected ( out of the blue ) email no matter how enticing.
Never open attachments from the email itself. Do not double click in the email. Always Save first and then scan with antivirus program.

Pay close attention when installing 3rd-party programs. It is important that you pay attention to the license agreements and installation screens when installing anything off of the Internet. If an installation screen offers you Custom or Advanced installation options, it is a good idea to select these as they will typically disclose what other 3rd party software will also be installed.
Take great care in every stage of the process and every offer screen, and make sure you know what it is you're agreeing to before you click "Next".

Use a Standard user account rather than an administrator-rights account when "surfing" the web.
See more info on Corrine's SecurityGarden Blog http://securitygarden.blogspot.com/p/blog-page_7.html


Dont remove your current login. Just use the new Standard-user-level one for everyday use while on the internet.

 
Do a Windows Update.

Make certain that Automatic Updates is enabled.
https://support.microsoft.com/en-us/help/12373/windows-update-faq

 

Keep your system and programs up to date. Several programs release security updates on a regular basis to patch vulnerabilities. Keeping your software patched up prevents attackers from being able to exploit them to drop malware.

For other added tips, read "10 easy ways to prevent malware infection"
.

Sincerely.

 

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