Today Microsoft Security Essentials started to flag all chisel versions as a hacking tool

Today Microsoft updated the database for security essentials and Windows Defender. Therefore, all software using chisel on Microsoft will be prevented from running because it is considered a "hack tool".
The argument is that "Hacktools can be used to patch or "crack" some software so it will run without a valid license or genuine product key."

I strongly disagree with the fact that Microsoft can just blacklist an open source tcp tunnel software library without blacklisting all such tunnels. If a software misuses an open source library the software doing so should be banned, not the underlying library providing a technical means.

The solution is to whitelist this but this is not very elegant.

This has also been discussed previously here #229 for another anti-virus vendor and is flagged as won't fix. I guess this will end up as won't / can't fix as well? But maybe we should address this with Microsoft?

Start with the Microsoft Security Essentials and Windows Defender detection linked in the issue, then review the prior discussion in #229. Determine whether the chisel project has an actionable change or whether resolution requires Microsoft to adjust its classification; done means documenting a decided, feasible resolution.