That's true and is most likely the case in this situation but my point about being careful of what you download still stands.The virus total result shows only 2 out of 60 antivirus software detected it as a virus. Both of which aren’t mainsteam ones, like Norton, AVG, Mcafee, etc, they all didn’t detect it. There is a good chance it could be a false positive, and not really be a virus.
As for obfuscation. Its commonly done by legitimate developers to help prevent people decompiling and stealing their code.
