https://re4perz3d.github.io/writeups/cyberspark-ctf/Recent content in CyberSpark CTF on Re4perZ3dHugoenSun, 18 May 2025 00:00:00 +0000https://re4perz3d.github.io/writeups/cyberspark-ctf/arcane-door/Sun, 18 May 2025 00:00:00 +0000https://re4perz3d.github.io/writeups/cyberspark-ctf/arcane-door/A beginner CTI challenge on the real-world ArcaneDoor APT campaign: TTPs, malicious software and exploited CVEs via MITRE ATT&CK.https://re4perz3d.github.io/writeups/cyberspark-ctf/backdoor/Sun, 18 May 2025 00:00:00 +0000https://re4perz3d.github.io/writeups/cyberspark-ctf/backdoor/Analyzing SSH logs to uncover unauthorized access and a malware persistence mechanism.https://re4perz3d.github.io/writeups/cyberspark-ctf/discord-bot/Sun, 18 May 2025 00:00:00 +0000https://re4perz3d.github.io/writeups/cyberspark-ctf/discord-bot/A misc challenge on Discord bot logic and permissions, manipulating bot behaviour to satisfy the flag conditions.https://re4perz3d.github.io/writeups/cyberspark-ctf/hello/Sun, 18 May 2025 00:00:00 +0000https://re4perz3d.github.io/writeups/cyberspark-ctf/hello/Network forensics and password cracking: recovering an encrypted PDF shared over FTP and extracting the hidden flag.https://re4perz3d.github.io/writeups/cyberspark-ctf/magic-bytes/Sun, 18 May 2025 00:00:00 +0000https://re4perz3d.github.io/writeups/cyberspark-ctf/magic-bytes/Steganography and file-repair: image metadata analysis, extracting embedded content and fixing a corrupted JPEG.