Butr.zip -

But it’s actually a digital "Trojan Horse" known as a .

When a computer tries to unzip butr.zip , it begins a recursive decompression nightmare. That 6 KB file contains layers upon layers of highly compressed data. If fully expanded, it would swell to hundreds of terabytes —far more than the storage capacity of almost any consumer computer in existence. The Result: butr.zip

Today, most modern antivirus software and browsers can spot butr.zip and its cousins (like 42.zip ) from a mile away, but it remains a classic symbol of how clever coding can turn a tiny bit of data into a digital sledgehammer. But it’s actually a digital "Trojan Horse" known as a