yETH represents an index token composed of multiple liquid versions of ETH, essentially liquid staking<\/a> tokens or LSTs. This structure allows users to gain diversified exposure<\/strong> to various Ethereum<\/a> liquid staking protocols. X user Togbe was the first to report massive and abnormal transactions involving several LSTs, notably those from Yearn, Rocket Pool, Origin, and Dinero.<\/p>\n\n\n\n Technical analysis of the exploit reveals meticulous preparation. The attackers deployed several new smart contracts specifically designed for this operation. These contracts self-destructed immediately after the transaction execution, thereby erasing evidence and significantly complicating post-mortem analysis. This self-destruction technique has become a signature of the most advanced DeFi hacks<\/strong>, allowing hackers to cover their tracks.<\/p>\n\n\n\n Before the attack, the yETH pool displayed a TVL of approximately $11 million<\/strong> according to Dexscreener<\/a>. Total financial losses<\/strong> remain unclear, but the impact far exceeds the $3 million<\/strong> directly pocketed by the hackers. The pool’s collapse created a major imbalance in the LST ecosystem<\/strong>, temporarily affecting the prices and liquidity of several related protocols.<\/p>\n\n\n\n