GT:VB.Nyx.1.36.144C0E

Cyberjobe

Hello,

Today, my Bitdefender Total Security flagged a file as infected with GT:VB.Nyx.1.36.144C0E during routine system cleanup. Here’s what happened:

• Initial Detection:-

Bitdefender detected a threat linked to a file downloaded via winget:
c:\users\username\appdata\local\temp\winget\eff.certbot.2.9.0\certbot-beta-installer-win_amd64_signed.exe.

I suspect it might have been a false positive as the file was sourced from winget, but further confirmation is needed.

• Another File Flagged:-

A VMware .vmx configuration file was also marked as infected during the scan.

I restored a clean backup of the file using Acronis and found that its hash differed from the infected version.

Upon submitting the infected file to VirusTotal, the infection was confirmed.

• Actions Taken:

The suspicious files were quarantined by Bitdefender.
The clean version of the .vmx file was restored from backup and replaced successfully.

Questions:

I’d appreciate insights regarding:

Whether the winget-downloaded Certbot installer could truly be a threat or just a false positive?
How a VMware .vmx file could become infected (potential attack vectors)?
Any advice on additional steps to ensure the system is clean and secure.

How a VMware .vmx file could become infected (potential attack vectors)?

Gjoksi

Hello.

Only the anti-malware researchers at Bitdefender Labs can help you with the issue.

You should report the file(s) and/or the URL(s) as false positive to Bitdefender Labs here:

https://www.bitdefender.com/consumer/support/answer/29358/

You could also follow the steps below.

First, take screenshot(s) of the issue,

create a log file on your Windows device using Bitdefender Support Tool, by following these steps:

https://www.bitdefender.com/consumer/support/answer/1733/

and

create a log file on your Windows device using BDsysLog, by following these steps:

https://www.bitdefender.com/consumer/support/answer/1922/

Next, contact Bitdefender Consumer Support by e-mail:

https://www.bitdefender.com/consumer/support/help/

with short description of the issue.

After that, you will get an automated reply by the Bitdefender Customer Care Team, with your ticket number.

Now, in reply to that automated reply, you can send the screenshot(s) you already took and the log files you already created in the first step.

Since you are all done, just wait for the support engineers to investigate your issue and find a solution to fix the issue.

Remember that the screenshot(s) and the log files will help a lot to the support engineers for better and faster investigation on your issue and finding a solution.

NOTE: If any of the log file is larger than 25MB, you can upload the log file here:

https://upload.bitdefender.net/

After the upload is done, you will get a notification with the file's URL and then you can share the file's URL with the Bitdefender Consumer Support.

Finally, could also scan (and disinfect, if needed) your PC with Bitdefender Rescue Environment:

https://www.bitdefender.com/consumer/support/answer/29132/

Regards.