qwebp.dll identified as malware possitive when compiled with VS2019 on 32-bit

 
today we received info from one of our customer about this malware detection:

Gen:Variant.Adware.Kazy.795337

It's detected only inside the qwebp.dll file attached to our project by qtdeploy process.

We're building 32-bit Qt (5.13.2.0) from the source and the same issue is reported on the same DLL no matter where it was built. We're using the latest VS 2019.

• https://www.virustotal.com/gui/file/9f09c05803ad4ffcd99454c420a840e17549ee711690fb1f11fd1b59bccc3b23/detection

• https://www.virustotal.com/gui/file/80c4c747d781a27c72de71c0900ccc045aefd2b4e4f17c949aaeeb3d0b7973b1/detection

When we scanned the older version (5.13.0.0) everything is ok:

• https://www.virustotal.com/gui/file/b7b7cacaef0e76439ef8c367c401524e93dfa00c9ca67a20290e829fec325a5a/detection

Also, all debug builds as the same as any 64-bit builds are clean too.

We tried to compile it on several computers with the same result. We also scanned all our build machines as same as dev machines with the same result. Only file qweb.dll is reported as infected.

The issue occurs only during 32-bit compilation on Visual Studio 2019 (v142), used SDK: 10.0.17763.0