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MichelePannacci
Contributor
Message 1 of 4

Visual Studio: The Trojan named PWS-FCQR!130853FDC1AB was detected and deleted

Hi, I'm a developer and McAfee blocked my visual studio compilation since last few hours with the following message:

 

DOMAIN\Michele.Pannacci ran C:\Program Files\Microsoft Visual Studio\2022\Professional\Msbuild\Current\Bin\Roslyn\VBCSCompiler.exe, which attempted to access C:\Users\Michele.Pannacci\Desktop\TS\TS\obj\Release\TS.exe. The Trojan named PWS-FCQR!130853FDC1AB was detected and deleted.

 

How can be this be possible? Please help

3 Replies
Nagesh_G
Moderator
Moderator
Message 2 of 4

Re: Visual Studio: The Trojan named PWS-FCQR!130853FDC1AB was detected and deleted

Hi @MichelePannacci ,

 

Greetings From Mcafee,

This issue might be related to an application update or the computer recent update which might changed some settings . so kindly try running a Full scan or either Reinstall the software and check if the issue Persist and update us the outcome . 

 

Regards

Nagesh G

MichelePannacci
Contributor
Message 3 of 4

Re: Visual Studio: The Trojan named PWS-FCQR!130853FDC1AB was detected and deleted

Hi Nagesh_G and thanks but the problem is elsewhere and weird. In fact i introduced an innocent variable:

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

public int[] _DefaultFilters { get; set; }
public int[] DefaultFilters
{
    get
   {
        return _DefaultFilters;
    }
    set
    {
        _DefaultFilters = value;
    }
}

 

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

then if I change type (array to List) the error goes away.

--------------------------------------------
public List<int> _DefaultFilters { get; set; }
public List<int> DefaultFilters
{
    get
    {
        return _DefaultFilters;
    }
    set
    {
        _DefaultFilters = value;
    }
}

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

no matter if  I change naming, i.e. _DefaultFilters/DefaultFilters to something else. Besides the fact that this thing is almost impossible to debug, to me looks a big bug in the antivirus that associates this structure with malicious code.

MichelePannacci
Contributor
Message 4 of 4

Re: Visual Studio: The Trojan named PWS-FCQR!130853FDC1AB was detected and deleted

Things get even worse. If I write this litte pieces of code:

new int[] { 1, 2, 3, 4, 5, 6 };

McAfee says my program is a trojan. If I add a zero all goes well. What's up??

 

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