CoinDesk reported:
One of the pools drained in the attack contained ether (ETH) and alETH, an ether derivative issued by Alchemix, a DeFi lending platform. Before the attack, the pool held 7,259 ETH and 4,822 alETH, Alchemix said. Then, the exploiter drained the majority of the tokens, leaving only 1 ETH and 3,856 alETH.