File: Space.invaders.extreme.zip ... Link
Depending on what was found in the archive, use these specialized techniques:
: Run strings on the zip and any extracted binaries. Look for readable text, URLs, or base64-encoded strings that might be the flag. File: Space.Invaders.Extreme.zip ...
: 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. Depending on what was found in the archive,
: Use the file command to confirm it is a standard ZIP archive. File: Space.Invaders.Extreme.zip ...