XEN token is a new project of Ether coin launched before. It can make coins by paying gas fees. It is a new special tool used by hackers to earn money for no reason.
According to a report in China, the network attack completely produces XEN tokens free of charge, while the FTX data encryption exchange pays for the cost of steam. The results show that hackers have placed a loophole in the most popular wallet chain of FTX, which facilitates continuous transmission of ETH tokens to students' detailed addresses.
So far, because of the GAS theft vulnerability, FTX exchanges have lost more than 81 ETH, and hackers' wallets have obtained more than 100 million XEN tokens. As a result, they exchanged some XEN tokens for 61 ETH through DoDo, Uniswap and other decentralized exchanges. It is noteworthy that, according to the monitoring and management platform, the attack on FTX's GAS theft is still hot.
In addition, the vulnerability assessment of the system claims that FTX has no restriction on the GAS limit of ETH local token transmission. The enterprise indicated that FTX applied the "estimateGas" method to assess the service fee, resulting in the majority of the amount of GAS being 500000, 24 times higher than the initial value of 21000.
In addition, it also noticed that small amount transfers with the same detailed address often appear in FTX popular wallets, which is an obvious exception. Its system software should have identified this issue.
In relevant news, the Binance chain bridge was used last week, which lost more than 500 million dollars in this process.
