Each of those has 16 more zip files, continuing for 5 levels. The bottom layer contains one 4.3 GB file. Why It Is Dangerous
: Many security tools are programmed to only scan a few layers deep into nested archives to avoid falling into these "bombs". Technical Context: "Bzip" and "BZ" B42zip
While "B42zip" usually points to the zip bomb, "Bzip" or "BZ" often refers to legitimate compression technologies: Each of those has 16 more zip files, continuing for 5 levels
A zip bomb is not a typical virus that "infects" files; instead, it is a on system resources. B42zip
: Attackers often use zip bombs to distract or overwhelm security software, creating a window to deploy other malware while the system is struggling to process the archive. Detection and Prevention