Wintermute warns Pectra upgrade leaves Ethereum users at risk of automated attacks

Description

An update included in Ethereum’s recent “Pectra” upgrade, intended to improve ease-of-use for users, has mostly been used by automated “sweeper” attacks to drain unsuspecting wallets, according to an analysis by Wintermute.

Authors

Zack Abrams

Publish date

June 1, 2025

Publisher

The Block

Web URL

https://www.theblock.co/post/356481/wintermute-warns-pectra-upgrade-leaves-ethereum-users-at-risk-of-automated-attacks?utm_source=twitter&utm_medium=social

Referenced by

Wintermute links Pectra update to wallet vulnerabilities

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Wintermute nicknamed the contract ‘CrimeEnjoyor.’ ‘The CrimeEnjoyor contract is short, simple, and widely reused,’ Wintermute wrote on X.

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Blockchain security firm Scam Sniffer recently identified a wallet that lost nearly $150,000 through a malicious batched transaction with links to the Inferno Drainer scam-as-a-service.

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