Step 7

Reconstructed Stuxnet Source Code Published on GitHub with Build Instructions

An unknown researcher has released a reconstructed version of the Stuxnet worm source code on GitHub, including reverse-engineering results and assembly instructions. Stuxnet was discovered in 2010 and is widely attributed to the joint US-Israeli Olympic Games operation targeting Iran's Natanz uranium enrichment facility. The malware specifically attacked Siemens industrial controllers by altering frequency converter operations to physically damage centrifuge rotors while falsifying operator displays. Propagation relied on USB drives, network shares, and a Windows Print Spooler vulnerability, combined with stolen Realtek and JMicron driver-signing certificates. The worm also injected itself into Siemens WinCC and Step 7 software to intercept communications with programmable logic controllers. Due to a flaw in its environment checks, Stuxnet escaped the target network and spread publicly before its built-in June 2012 self-destruct date. Researchers are advised to analyze the code only inside fully isolated virtual machines without network access.