: Upload the file to VirusTotal . This will scan the archive against over 70 antivirus engines and provide a "Deep Report" on its behavior, including any contacted URLs or dropped files.
Providing the MD5/SHA-256 hash would allow for a much more precise technical lookup.
If you have this file and are unsure of its origin, do not extract it. Instead, follow these steps:
Based on current technical databases and security intelligence, does not appear to be a widely documented malware strain, a known "zip bomb," or a standard dataset used in cybersecurity research.
: Compressed archives are frequently used to bypass basic email filters. A file named "100jokes" might contain an executable (like .exe , .vbs , or .js ) disguised as a text file or image to trick users into running code.