Cryptocurrency
"'EtherHiding' — Hiding Web2 Malicious Code in Web3 Smart Contracts"
Primary Source ↗Blockchain(s)
Bsc
Incident Details
An otherwise very “web2” hack has taken on a web3 twist as hackers have started to store malicious code on the blockchain. Attackers first compromise WordPress websites, then show a screen to visitors telling them they need to update their browser to view the website. When the visitor does so, the site downloads malware which then harvests information like login credentials.Attackers previously stored the malicious code on typical webhosting services, but those services began to take it down. Now, some have started using Binance’s blockchain to store these payloads, taking advantage of the immutable nature of blockchains to prevent anyone from taking it down.
Technical Details
- Initial Attack Vector
- Malicious code injection / supply chain
- Vendor / Product
- Hackers host malicious code on Binance chain to circumvent takedowns
Timeline
- 2023-10-13 Breach occurred
- 2023-10-13 Publicly disclosed