Write-up | picoCTF 2019 | shark on wire 1 Description We found this packet capture. Recover the flag. Hint: Try using a tool like Wireshark, What are streams? Walkthrough Let’s open th...

Write-up | picoCTF 2023 | UnforgottenBits Description Download this disk image and find the flag. Hint: There are no hints here, but there are plenty on the disk! Artifacts/Infrastructure...

Write-up | picoCTF 2024 | Dear Diary Description If you can find the flag on this disk image, we can close the case for good! Download the disk image here. Hint: If you’re observing binary ...

Write-up | picoCTF 2022 | Operation Oni Description Download this disk image, find the key and log into the remote machine. Note: if you are using the webshell, download and extract the disk ima...

Write-up | picoCTF | Flag in Flame Description The SOC team discovered a suspiciously large log file after a recent breach. When they opened it, they found an enormous block of encoded text inst...

Write-up | 0xFun CTF 2026 | UART Description A strange transmission has been recorded. Something valuable lies within. The link to the challenge’s artifact(s) is here. Hash: 1be9fd338069ec3e6...

Write-up | picoCTF 2025 | RED Description RED, RED, RED, RED Challenge file(s)/Infrastructure(s) File(s): Attached Files. Initial steps We are provided a .png file. The first...

Write-up | lactf2026/misc/grammar Description Inspired by CS 131 Programming Languages, I decided to make a context-free grammar in EBNF for my flag! But it looks like some squirrels have eaten...

Write-up | picoCTF | Operation Orchid The link to the challenge is here Description Download this disk image and find the flag. Walkthrough We also get a .img file like the previous challen...

Write-up | BlueTeamLabs | Memory Analysis - Ransomware The link to the challenge is here Description Download this disk image and find the flag. Initial look We are provided a .img file, wh...