Last few builds seem to be having trouble with some antivirus, due to using a different exe linker/reloc stripper, specifically bitdefender, g-data, avira and a couple more were triggering as suspicious. I contacted them and sent them samples and most updated their database for the proper recognition as a clean exe, but Avira seems to still be a bit behind.
Rest assured there are no virus or anything suspicious in ARM, you can send the executable to virustotal.com for a check. Here are the results with the latest build:
I submitted the sample also to Avira, but their only response seemed to be an automated “exe is clean and false possitive” email, no information about whether they are updating their DBs to properly check this case.