Yeah you must be very careful with these, cause these time it happens with a low quantity of money but imagine if you are transferring more.. So you may take into consideration that each token have its differente contract on each network and the only way to find it even if you don't find in coinmarketcap (sometimes it happens), you may go to the network blockchain you are using and find it, always make sure is original one because there are a lot of scammers. Have a good day mate, take care!