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慢雾:近期 Solana 授权钓鱼频发,提醒用户勿掉以轻心

2022-03-05 18:26:04

链捕手消息,据慢雾区情报,Solana 近期出现多起授权钓鱼事件,攻击者批量给用户空投 NFT,用户通过空投 NFT 描述内容里的链接进入目标网站,授权批准后该钱包里的所有 SOL 都会被转走。该恶意合约的功能最终就是发起“SOL Transfer”,将用户的 SOL 几乎全部转走。从链上信息来看,该钓鱼行为已经持续了几天,中招者在不断增加。

慢雾提醒称,恶意合约在用户批准(Approve)后,可以转走用户的原生资产(这里是 SOL),这点在以太坊上是不可能的,以太坊的授权钓鱼钓不走以太坊的原生资产(ETH),但可以钓走其上的 Token。于是这里就存在“常识违背”现象,导致用户容易掉以轻心。

同时,Solana 最知名的钱包 Phantom 在“所见即所签”安全机制上存在缺陷(其他钱包没测试),没有给用户完备的风险提醒。这非常容易造成安全盲区,导致用户丢币。

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