Same problem when testing on virustotal - Suspected Of JS.Crypted. Heur
Just ignore it, there is no virus. VirusTotal checks for certain heuristics signatures and finds something that matches JS.Crypted.Heur
JS.Crypted.Heur is an indication that inside the JavaScript that Yoast uses, they encrypt certain part of their code to avoid people trying to decompile and possibly copy their code. Unless you own the encryption key, you're not supposed to be able to read what it says. Since that code is a random set of numbers and letters, rather than matching a specific piece of code, it just looks for encrypted code and finds a match, hence why you keep seeing JS.Crypted.Heur flagged as being suspect (since VirusTotal also can't read that code).
If you had gone and bought the plugin from Yoast directly and paid for the subscription and would've uploaded the original Yoast plugin, you would get the exact same warning.
So rather than complaining about that error every single time an update gets posted, perhaps you can reach out to Yoast at
[email protected] (make sure you don't tell them that you are using a Nulled version) and ask why their plugin has a warning on VirusTotal. They'll tell you what I wrote above: It's a false positive: Ignore it.