The malicious contracts exploit a feature introduced in Ethereum’s Pectra upgrade, called Ethereum Improvement Proposal-7702 (EIP-7702), that allows users to temporarily delegate control of their wallets to smart contracts.
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Wintermute’s ‘CrimeEnjoyor’ to flag Ethereum’s wallet-draining contracts
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Attackers exploited Ethereum’s EIP-7702 feature to authorize smart contracts that automatically transfer ETH from wallets with stolen private keys to attacker-controlled addresses.
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