The first step in any investigation is to establish a cryptographic baseline to ensure data integrity and check for existing community detections. Generate MD5, SHA-1, and SHA-256 hashes.
Use the file command in Linux to verify that the extensions match the actual file headers (e.g., ensuring a .jpg isn't actually an executable). dutch111.7z
Before running anything, examine the extracted files without executing code. The first step in any investigation is to
Based on the analysis of dutch111.7z , the write-up should conclude with: dutch111.7z
Steps to remove the threat or the "Flag" found if this was a CTF.
(e.g., "The archive contains a Trojan downloader disguised as a Dutch utility.")