A "solid paper" on this specific filename does not exist in a scholarly sense; however, technical analyses of similar naming conventions in cybersecurity research reveal several critical risks: Why this file is considered dangerous:

: If the RAR requires a password provided in a text file or email, it is likely encrypted specifically to prevent security software from inspecting the payload during transit. [1] Recommended Actions: Do not extract or open the file.

: RAR archives with generic, sensationalist names (like "Danger.City") are classic vectors for distributing Trojan horses, ransomware, or infostealers . [1, 2]