MEV 機器人返還 Ronin 橋接器意外流失的 1000 萬美元

8 月 6 日，最大可提取價值 (MEV) 機器人從 Ronin 橋接器耗盡了近 3,996 以太幣 (ETH)，現已返還幾乎所有資金

A bot that drained nearly 3,996 Ether (ETH) from the Ronin network bridge on Aug. 6 has returned almost all of the funds, according to data from block explorer Etherscan. This suggests that the bot may have accidentally front-run the attack. At the time the ETH was returned, it was valued at over $10 million.

根據區塊瀏覽器 Etherscan 的數據，8 月 6 日，一個機器人從 Ronin 橋上耗盡了近 3,996 以太幣 (ETH)，現在已返還幾乎所有資金。這表明機器人可能意外地搶先了攻擊。當 ETH 被返還時，其價值超過 1000 萬美元。

The bot returned the funds at 3:04 pm UTC. A total of 3,991 ETH was transferred to the Ronin team, while the remaining 5 ETH has not been returned. The Ronin team announced the return on social media platform X and stated that the bot’s owner was being rewarded $500,000 for discovering the exploit.

該機器人於世界標準時間下午 3:04 返還資金。總計3,991 ETH轉給Ronin團隊，其餘5 ETH尚未歸還。 Ronin 團隊在社群媒體平台 X 上宣布回歸，並表示該機器人的所有者將因發現漏洞而獲得 50 萬美元的獎勵。

The team said it will only allow the bridge to be reopened after the vulnerability is patched and an audit is performed.

團隊表示，只有在修補漏洞並進行審核後，才會允許橋樑重新開放。

MEV bots are programmed to copy transactions and pay a higher gas fee to execute them first if doing so is profitable. For this reason, they sometimes accidentally exploit protocols. If an attacker attempts to exploit a protocol but fails to pay a high enough gas fee, for example, an MEV bot may automatically copy the attack and drain a protocol of funds. In these cases, the bot’s owner will usually return the funds to the victim, as has happened in this case.

MEV 機器人被編程為複製交易並支付更高的汽油費來首先執行它們（如果這樣做有利可圖）。因此，他們有時會意外地利用協議。例如，如果攻擊者嘗試利用協議但未能支付足夠高的汽油費，MEV 機器人可能會自動複製攻擊並耗盡協議資金。在這些情況下，機器人的所有者通常會將資金退還給受害者，正如本例中所發生的那樣。

The drained funds were initially reported to be worth $9.8 million. However, the price of ETH has increased since then, making the returned funds now worth more than $10 million.

據報道，被抽走的資金最初價值 980 萬美元。然而，此後 ETH 的價格上漲，使得返還的資金現在價值超過 1000 萬美元。

In July, a similar incident occurred when an MEV bot drained the Rho Markets protocol of over $8 million. The bot’s owner later returned all of the funds.

7 月，發生了類似事件，MEV 機器人耗盡了 Rho Markets 協議超過 800 萬美元。該機器人的所有者後來退還了所有資金。

Ronin was also exploited for over $600 million in March 2022. It is home to Axie Infinity, a Web3 game that claims to have over 2.7 million users.

Ronin 也在 2022 年 3 月被利用，損失超過 6 億美元。