火星财经消息，据 KiloEx 发文对黑客事件根本原因分析和事后总结称，事件起因是其智能合约中的 TrustedForwarder 合约继承了 OpenZeppelin 的 MinimalForwarderUpgradeable 但未重写 execute 方法，导致该函数可被任意调用。攻击发生于 4 月 14 日 18:52 至 19:40（UTC），黑客通过在 opBNB、Base、BSC、Taiko、B2 和 Manta 等多个链上部署攻击合约实施攻击。经过协商，黑客同意保留 10% 赏金，并已将所有被盗资产（包括 USDT、USDC、ETH、BNB、WBTC 和 DAI）退还至 KiloEx 指定的多重签名钱包。

<div>火星财经消息，据 KiloEx 发文对黑客事件根本原因分析和事后总结称，事件起因是其智能合约中的 TrustedForwarder 合约继承了 OpenZeppelin 的 MinimalForwarderUpgradeable 但未重写 execute 方法，导致该函数可被任意调用。攻击发生于 4 月 14 日 18:52 至 19:40（UTC），黑客通过在 opBNB、Base、BSC、Taiko、B2 和 Manta 等多个链上部署攻击合约实施攻击。经过协商，黑客同意保留 10% 赏金，并已将所有被盗资产（包括 USDT、USDC、ETH、BNB、WBTC 和 DAI）退还至 KiloEx 指定的多重签名钱包。</div>

KiloEx 对遭遇黑客事件总结：TrustedForwarder 合约存在 bug 导致了此次攻击

Mars Finance news, according to KiloEx's analysis and post-event summary of the hacking incident, the root cause was that the TrustedForwarder contract in its smart contract inherited OpenZeppelin's MinimalForwarderUpgradeable but did not override the execute method, causing the function to be callable by anyone. The attack occurred from 18:52 to 19:40 (UTC) on April 14, with the hacker deploying attack contracts on multiple chains including opBNB, Base, BSC, Taiko, B2, and Manta. After negotiation, the hacker agreed to keep 10% of the bounty and has returned all stolen assets (including USDT, USDC, ETH, BNB, WBTC, and Dai) to the multi-signature wallet designated by KiloEx.

<div>Mars Finance News: According to KiloEx's analysis and post-event summary of the hacking incident, the root cause was that the TrustedForwarder contract in their smart contract inherited OpenZeppelin's MinimalForwarderUpgradeable but did not override the execute method, allowing the function to be called arbitrarily. The attack occurred from 18:52 to 19:40 UTC on April 14, with the hacker deploying attack contracts across multiple chains including opBNB, Base, BSC, Taiko, B2, and Manta. After negotiations, the hacker agreed to keep 10% of the bounty and has returned all stolen assets (including USDT, USDC, ETH, BNB, WBTC, and Dai) to the multi-signature wallet designated by KiloEx.</div>

KiloEx’s summary of the hacking incident: a bug in the TrustedForwarder contract led to the attack

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