I would be real surprised if this doesn’t get flagged. FRST / FRST64 are rebuilt daily or so to included / adjust to new found malware and the techniques used to hide malware. AV / AM have been flagging this file for some time now.

Farbar Recovery Scan Tool (both 32 bit / 64 bit) as downloaded makes no changes to the system; the program is only a scanning tool. Only when told to run a script (when directed by a trained malware removal person) does the program make any changes to the system. Otherwise, the program will sit there quietly and do nothing harmful or otherwise.