Slow Fog Cosine: Previous WETH Phishing Incident on Blast Due to nferno Drainer Support for Offline Authorized Signatures

Slow Mist Cosine posted on the X platform that there are a few key pieces of information to note from a previous phishing incident involving a user's WETH on Blast:

WETH on Blast is Blast's wrapped ETH token issued by Blast, the contract is upgradable, and supports permit offline authorization signature;
The WETH code on the main EtherNet is only about 50 lines, very simple and reliable, how much WETH is issued, how much ETH is stored in the contract, there is no permit or other fancy features;
Users are phished because Inferno Drainer supports Blast WETH permit offline authorization signature, phishing gangs study really details, details determine the revenue.