Best is to avoid altcoins all together and just stick to bitcoin that you store in open source wallet like Electrum or even better hardware wallet. That way you dont have to worry about these types of airdrop scams
my advice is if we really want to hunt for airdrop, then it's better for us to create a new wallet (separate from the main wallet), so we are not afraid if the airdrop we participate in is a scam and of course it will also keep our main wallet safe, but I also not really interested to taking part in airdrop for now, because I think the current airdrop doesn't give us money and only wastes our time.