The search query suggests a few possibilities, mostly related to (OpenIV Package format - .oiv/zip) or a general CTF "ZipLock" challenge. Given the potential ambiguity, 1. GTA IV "OTV" Modding (OpenIV)
Using fcrackzip or john if the zip is encrypted. otv4.zip
To get you the right information, please clarify: The search query suggests a few possibilities, mostly
Based on the search results, there isn't a widely recognized "otv4.zip" in top-tier security write-ups (like HackTheBox, TryHackMe, or standard CTF platforms). otv4.zip
Checking the file type with file , looking for hidden metadata with exiftool .