PCAP Analysis Challenge ======================= We captured suspicious network traffic from a compromised machine. The attacker appears to be exfiltrating data via DNS queries. Your task: Analyze the pcap file and find the exfiltrated data. Look for: - Unusual DNS query patterns - Base64-encoded data in subdomains - The pattern: [base64].[base64].exfil.attacker.com Tools: Wireshark, tshark, tcpdump Note: If no pcap file is present, here's a sample of what to look for: - DNS queries to: Rk.xh.exfil.example.com (partial base64) - Decode and concatenate the subdomains to reveal the flag For the actual challenge, download: suspicious_traffic.pcap