AUTO-ADMIN: Non-MP3, WAV, OGG, SoundCloud, YouTube, Vimeo, Twitter and Facebook links in this post have been protected automatically. Once the member reaches 5 posts the links will function as normal.Windows defender, on win10, with AV dat defs version 1.259.809.0 (dec 26 2017) flags
Overriding AV and allowing it to be extracted, then uploading to virustotal, it shows clean:
Based on quick research about false positives for this malware class, and the virustotal result, I believe there is no actual threat. However, it's probably worth getting ahead of as a FAQ entry.
I have submitted the file here
Which should eventually clear it (I'd hope).