In reality, is widely considered a creepypasta or a piece of digital folklore .

Several indie game developers and digital artists have used the name for ARGs or "lost media" style art projects to evoke a sense of early-2000s internet dread.

The name likely draws inspiration from the —the idea that a small change (like opening a file) can have catastrophic consequences. It also mirrors the aesthetic of "Lies and Butterflies," a well-known progressive rock album, which some internet sleuths have mistakenly linked to the mystery due to shared keywords in search results.

Security experts warn that searching for and downloading files like "Butterfly.rar" from unverified sources is a common way to accidentally download actual malware or "zip bombs" designed to crash a computer. The "Butterfly" Motif in Digital Mystery

This version claims the file contains a series of images that, when viewed in a specific order, cause extreme psychological distress or "mental restructuring." It is often likened to the "Cicada 3301" puzzles, but with a darker, more malicious intent.

In internet lore, the file is often described as a massive archive containing thousands of images, videos, and text files. The "hook" of the story usually follows one of two paths:

Many versions of the story mention that the .rar file is password-protected. The search for this password often becomes the primary focus of the "investigation" by online communities.