All Writeups

Comprehensive collection of CTF challenges, solutions, and insights.

2026-03-01 Network Insane

DEADROP Network 6 - OPERATION NIGHTJAR

A single PCAP containing a complete attack kill chain, reconnaissance, exploitation, C2 establishment, lateral movement, data staging, and exfiltration. Each stage requires a different analysis technique. Read the whole story from first SYN to final exfil packet.

network pcap kill-chain wireshark

2026-03-01 Network Hard

DEADROP Network 5 - C2 Beacon

A PCAP containing C2 beacon traffic with a polyglot payload hiding a second flag. Identify the beaconing pattern, extract and decode the C2 communications, then analyse the payload for the embedded flag.

network pcap c2 beaconing

2026-02-28 Network Easy

WHAMazon! Network 3 - It wasn't me

Extracting a PowerShell hex-decoding payload from a DNS C2 packet capture using strings, then decoding the embedded hex string to recover the flag.

pcap pcapng dns c2