A series of phishing ads targeting the Ethereum blockchain explorer, Etherscan, have been reported on 2024-04-08, raising concerns within the cryptocurrency community. These ads, identified as Multichain Yield Optimizer, appeared in the 'Other Info' column of the token details page, presenting themselves through pictures and links that lead to various websites. This incident marks a recurring issue, as similar phishing advertising links were reported on Etherscan and CoinGecko in 2022. The ads have been described as wallet drainers, prompting alerts about the potential risks they pose to users. The surge in phishing scam advertisements on Etherscan was flagged by an Etherscan user, @mcbiblets, highlighting the ongoing vulnerability of even the most trusted institutions in the cryptocurrency space. There have been reports of phishing attacks linked to these ads, but it remains unclear if any user funds have been lost.