'fast16' malware is used to make people believe that Iran's nuclear weapons tests have ...

The design intent behind ' fast16 ,' malware intended to disrupt nuclear weapons test simulations, has been revealed. It appears the malware was designed to manipulate simulation data, making it appear as if the simulations had failed when they were actually successful. fast16 | Mystery Shadow Brokers Reference Reveals High-Precision Software Sabotage 5 Years Before Stuxnet | SentinelOne

This malware had been publicly available on the internet for a long time, but apparently it never caught the attention of researchers. fast16 was first spotted on the internet in 2017. It was mentioned in connection with the theft of a large amount of tools from the US National Security Agency (NSA) by a mysterious group known as Shadow Brokers, and it was suggested that it was 'created by the NSA or an allied country.' That same year, someone uploaded a sample of the code to a site called VirusTotal, but it remained unnoticed for the two years. VirusTotal is a site used by security companies and victims of cyberattacks to upload suspicious files, which are then scanned by multiple antivirus engines to determine if they are malicious. In 2019, researchers at the security firm SentinelOne 'discovered' fast16, and for many years afterward, they attempted to decrypt it but failed. It wasn't until 2026, when they used AI to analyze it, that its design intent became clear. The researchers speculated that 'although it was unclear which simulation software fast16 was targeting or what kind of experiments it was trying to disrupt, it most likely was trying to disrupt software used for nuclear weapons explosion simulations.'

Incidentally, a similar malware called 'Stuxnet' was discovered around 2010. Stuxnet increased the pressure inside the centrifuge, causing it to rotate uncontrollably, while simultaneously sending false data to the operator, making them believe that the centrifuge was functioning normally. The researchers stated, 'Stuxnet is the most sophisticated malware we've ever seen, but fast16 is in a league of its own. The level of expertise required to create it and the human effort needed to execute it are enormous, and the fact that it was developed in 2005 is astonishing.'

May 18, 2026 11:39:00 in Security , Posted by log1p_kr