: Run strings on the zip and any extracted binaries. Look for readable text, URLs, or base64-encoded strings that might be the flag.

: Use these tools to see if other files are embedded inside the extracted files. For example, a PNG file might actually have a ZIP appended to the end of it.

: If the archive is password-protected, tools like John the Ripper or hashcat are used to crack the ZIP password using wordlists like rockyou.txt . 3. Deep Analysis Techniques

: Use the file command to confirm it is a standard ZIP archive.

: Run unzip -l Space.Invaders.Extreme.zip . Common contents might include: An executable ( .exe or ELF) related to the game.

: If an executable is present, load it into Ghidra or IDA Pro . Analyze the logic—specifically where it handles input or "victory" conditions—to find where the flag is generated or stored in memory. 4. Extracting the Flag

: Generate MD5 or SHA-256 hashes ( sha256sum Space.Invaders.Extreme.zip ) to ensure the file hasn't been tampered with and to check against known databases like VirusTotal . 2. Archive Inspection

Hidden metadata or unusual file names (e.g., .hidden_flag.txt ).