NSA Codebreaker 2025

NSA Codebreaker 2025 - Task 5: Putting It All Together

The investigative handoff from malware to infrastructure

3 October 2026 ยท 1 min read ยท Cryptanalysis

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NSA analysts confirm that there is solid evidence that this binary was at least part of what had been installed on the military development network. Unfortunately, we do not yet have enough information to update NSA senior leadership on this threat. We need to move forward with this investigation!

The team is stumped - they need to identify something about who was controlling this malware. They look to you. “Do you have any ideas?”


Task

Submit the full URL to the adversary’s server


Writeup

Enter here…


NSA Codebreaker 2025 Task 5 completion badge

โ† Task 4 ยท Series overview ยท Task 6 โ†’