Please make sure you use the AVN wallet from the official site only, https://en.avantage.io/. We are finding out that some scammers recompiled and modified it (as is the tradition to publish online the code with opensource crypto projects such as AVN, someone took advantage of this).
You be right about the fraudsters. What people still dont realize is that the ecosystem of cryptocurrencies as a whole is driven by conmen in disguise who use decentralization to veil their true intents. Just think about it. Who is in charge of crypto? Early angles. And who are they now? They are the exchange owners with multi million $ fortunes, the worst fraudsters of all.