Breakin [re, 400 points] Previous state-hacking campaigns from these APT actors indicate that they regularly change cryptographic keys, and we believe this server is being used to coordinate them. If you can discover how the keys are being derived, then we'll be able to decrypt all their past worm communication in the network! NOTE: This challenge is intended to be solved after 'Breakout'.
From the description of the task I knew that first I should find the place where the encryption key is being shared.
Breakout [re, 300 points] The CCSS suffered a ransomware attack that compromised the Unique Digital Medical File (EDUS) and the National Prescriptions System for the public pharmacies. They've reported that their infrastructure has been compromised, and they cannot regain access. The APT left their implant interface exposed, though, and you'll need to break into it and find out how it works. NOTE: This challenge is intended to be solved before 'Breakin'.