Apparently someone already submitted it to virustotal. Here is the result (3/69, false positive, IMHO):
https://www.virustotal.com/gui/file/98d292206a3e23ef2d2476aa600ad1ddf7118343c01595ca42be78d2d8de0c2d/detection -- You received this message because you are subscribed to the Google Groups "Metamath" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/metamath/17d94ad7-11de-4b8d-93b2-208fb4c3ff49n%40googlegroups.com.
