Huge Gas Fee Draining Hack

Ethereum user loses 121 ETH in gas fee exploit, totaling a loss of 156,190 USD.

On October 19, 2022, an Ethereum user fell victim to a gas draining exploit, losing 121 ETH as a gas fee. The fees were pocketed by the validator that processed the transaction, which was processed by an MEV-Boost relay belonging to Flashbots, the most prominent organization within the MEV sphere. The transaction used a block-builder from builder0x69.

It remains unclear which, if any, of the parties involved is responsible for manipulating the gas fee to such heights.

Victim Address:

https://etherscan.io/address/0xBB1D6b3B…2b73Fd

Malicious Transaction:

https://etherscan.io/tx/0x4a84d087…ca4e97

Malicious Contract Address:

https://etherscan.io/address/0x6465fa41…112865