Discovering ICMP Tunneling on PacketTotal May 15, 2018 I found this packet capture upload on PacketTotal, and noticed it was using ICMP tunneling to communicate with its command-and-control server. Reversing Ethereum Smart Contracts: Part 2 April 23, 2018 In my previous tutorial, we began reversing engineering the Greeter.sol contract. Specifically, we looked at Greeter.sol’s dispatcher, the portion of the contract that takes your transaction data and determines to what function it should send you. Empire Hacking at Goldman Sachs April 10, 2018 New York, New York (April 10th, 2018) Soho House March 28, 2018 Miami, Florida (March 28th, 2018) Reversing Ethereum Smart Contracts March 20, 2018 This shows you how the Ethereum Virtual Machine works, and how to reverse engineer a smart contract. EthWalletSecurity.com February 24, 2018 EthWalletSecurity is an interactive site exploring the attack surface of MetaMask, the Chrome extension serving as a wallet store and Ethereum client. Testing Smart Contracts Locally using Geth February 14, 2018 This tutorial will take you through deploying and testing your smart contract on a local, private blockchain you created using Geth. How to Set Up a Private Ethereum Blockchain using Geth January 30, 2018 Ethereum is run by different clients on different peoples’ computers. Whether you’re using a C++, Rust, Golang, or some other implementation doesn’t matter so long as your client implements the protocol properly. Explaining the Genesis Block in Ethereum January 26, 2018 Every blockchain has to start somewhere, so there’s what’s called a genesis block at the beginning. This is the first block, and in it the creators of Ethereum were at liberty to say “To start, the following accounts all have X units of my cryptocurrency.” Any transfer of that ether on the blockchain will have originated from one of these initial accounts (or from mining). BSides NYC January 20, 2018 New York, NY (January 20th, 2018)
