https://github.com/prathab/CryptoHole

You can send ether to the above contract to receive a CryptoHole token (infinite supply).

arbitragecoins.com claims to do trading on deposited crypto and shows profit in USDT

but,

1.  The deposited crypto never leaves the wallet
2.  Withdrawals never go through
3.  Customer service is claiming the site is hacked and withdrawals will take 2 weeks

It is a scam site beware!