Still Not Died

S C E N A R I O
A network capture has been provided containing encrypted QUIC (HTTP/3) traffic involving a user login and a binary file download. The traffic is protected using TLS, but an accompanying SSL key log file is included, allowing decryption of the session. The goal is to reconstruct the full interaction, extract the downloaded binary output, and recover the session cookie assigned after authentication.

The communication uses HTTP/3 over QUIC, which relies on UDP and encrypted multiplexed streams. Proper decryption and stream reconstruction are required to analyze the login flow and file transfer.

O B J E C T I V E
Analyze the provided PCAP file using Wireshark, decrypt QUIC/HTTP3 traffic using the provided SSLKEYLOGFILE, and extract two key artifacts: the output of the executed binary and the authenticated session cookie. Combine both values to form the final flag.

Provided Files still_not_died.zip

Infrastructure Downloadable archive 

Flag Format Flag{decrypted_secret_from_binary|session_value}