"Bottle.Pilgrim.Redux.rar" is a notorious internet shock video or "screamer" from the late 2000s and early 2010s, frequently used as bait to deliver loud, alarming content, and often, malware. The file, disguised as a compressed archive, typically featured jump-scare imagery and was spread across platforms like 4chan. Safety advisories recommend immediate deletion of the file to avoid potential security risks from malicious code.