[Boost-build] Building 1.79.0 b2/bjam triggers a virus warning

From: Bob Paddock (graceindustries_at_[hidden])
Date: 2022-05-27 12:52:22

When building 1.79.0 b2/bjam via running:

tools\build\bootstrap gcc

on Windows 10 with:

gcc --version
gcc (GCC) 11.2.0
Based on mingw-w64
from here:

https://nuwen.net/mingw.html

I receive:

Detected by Microsoft Defender Antivirus:

Behavior:Win32/Execution.A!ml

This program is dangerous and executes commands from an attacker.

E:\Boost\1_79_0>copy ..\b2* .
..\b2.exe
Operation did not complete successfully because the file contains a
virus or potentially unwanted software.
        0 file(s) copied.

This did not happen when building b2/bjam 1.78.0 with everything else
being the same.

I expect this is either a false positive or a new implementation detail.

Can someone familiar with the changes in 1.79.0 take a look please?

Here is one way such things can happen:

https://stackoverflow.com/questions/64088454/behavior-win32-execution