File: — Deluded_v0.1_default.zip ...

Extract the hidden flag or identify the malicious payload within the provided ZIP archive. 2. Initial Reconnaissance Begin by gathering metadata and basic info about the file:

Based on standard methodologies used in CTF write-ups for ZIP file analysis, such as those found on GitHub and Medium , here is a structured template and investigative guide you can use to develop your write-up: 1. Challenge Overview Deluded v0.1 Category: (e.g., Forensics, Reverse Engineering) File: Deluded_v0.1_default.zip ...

If the ZIP is encrypted, try common passwords or use tools like John the Ripper or hashcat to perform a dictionary attack. Extract the hidden flag or identify the malicious

Generate an MD5 or SHA-256 hash to ensure file integrity. Challenge Overview Deluded v0

If there is an executable inside, use VirusTotal to check for known signatures or static analysis tools like Ghidra . 5. Solution & Flag

Check if the ZIP is "nested" (a ZIP within a ZIP) or if it has trailing data after the end of the central directory. 4. Detailed Investigation (Potential Paths)