I am in many airdrops group in telegram. In one of the group I saw one person sent his private key in the group. I thought to check that private key and it turns out that it contains $178k worth of ICX tokens. It has no ETH to pay for gas fees, so I too think of sending some ETH to cover for GAS and withdrawing those ICX tokens. But then I thought of it for a second that it's too good to be true and started searching on google. And I find out that it's another kind of scam currently running. As soon as you transfer the ETH, it will get transferred to another address, way before you could try to withdraw those ICX tokens.
Bascially these steps :
1. Guy posts his MEW private key in a chat.
2. $100+k worth of tokens (ICX, MNE, etc) in it, no ETH for gas.
3. Many people in the chat send gas to take it.
4. Smart contract. Auto-sends theETH to another address; keeping tokens in the same account.
These scammers are getting cunning by each passing day.
More about this you can read here -
https://bitfalls.com/2018/04/13/creative-new-scam-honeypot-private-key/For technical part of how it's done and why you'll never able to withdraw tokens, read this -
https://hackernoon.com/the-sneakiest-ethereum-scam-ever-6dc138061235Be safe guys, and remember if it's too good to be true, it probably is. Stay away from these dreams. Always think twice