TLDR InfoSec · STRATEGIES & TACTICS
IMPLEMENTING THE ETHERHIDING TECHNIQUE
Summary from the TLDR InfoSec newsletter
Etherhiding is a technique used by attackers to distribute malware using public blockchains, specifically Ethereum. It works by hiding critical information, such as payloads or configuration data, within blockchain smart contracts, making them accessible while making them difficult to take down or block. This hands-on demo shows how to build a simple Ethereum smart contract using Solidity, deploy it to the Sepolia test network via MetaMask, and create a web page that retrieves and displays the hidden information from the blockchain using Infura RPC.