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THis one is a close 2nd favorite. 86 Samuari. Whats not done to it!

The 93 Hilux...

Miss this one a lot.

Unfortunately, this puzzle requires you having the 10 NFC tags I am programming. I am attaching my full notes and solutions to this puzzle.

Description: Welcome to the modern era of physical security and access control. Before you lie ten NTAG215 NFC tags, physically numbered 1 through 10. One of these tags contains the system override phrase. The other nine are decoys.

Reading the tags is the easy part; understanding them is the true test. The data payloads on these tags are obscured. To reveal the true messages, you must realize that the hardware itself holds the key. The cipher changes from tag to tag, bound by the physical identity of the chip and the current era.

Your Objectives:

Interrogate the Hardware: A standard smartphone tap will only show you the encrypted text. To find the key, you must use a Flipper Zero, a Proxmark3, or an advanced smartphone application…

You will need the attached QR codes to complete this.

Description: You have bypassed the physical hardware restrictions and secured the initial foothold. Now, you must escalate your privileges to absolute control.

Hidden in the physical environment are five sequential data drops in the form of QR codes. A standard smartphone scan will yield a Base64 string, but that is merely an encoding wrapper. The true payloads are heavily encrypted.

You must establish an air gap protocol to transfer this data to your terminal. Your cipher is AES-256-CBC with PBKDF2. The payload from the first drop will contain the passphrase to decrypt the second, chaining all the way to the final target.

Find the drops, decode the wrappers, decrypt the network daemons, and claim root access.

Points: 200

You will need the disk image from this link: jumpman-ctf.d64

Description: You have extracted the target's identity, but static analysis is only half the battle. Your next objective is execution. Using the physical Commodore 64, load the executable into memory, connect the peripheral hardware, and successfully initiate a game of Jumpman. Be warned: 1980s hardware engineering did not always follow modern logical standards. Trust the machine, not your instincts.

Get Jumpman moving and we will give you the flag.

Points: 100

This is the next challenge. You will need a C64 (or emulator) to mount the disk image to do this (and the JUMPMAN) challenge.

Link for disk image: jumpman-ctf.d64

Description: Step back into the 8-bit era. Your target is a physical Commodore 64. On the provided floppy disk, locate the program named "STARTHERE" and look under the hood—the flag is buried within its source code. Modern OS commands will not work here; you will need to speak the machine's native language to pull the directory and extract the flag.

Points: 50

Most of you have seen my posts on either the Basement or DarkForce about the challenges I developed for the upcoming CTF (capture the Flag) we are hosting for our students. I thought I would share them here, to give you more than what I can put on the BBS.

If you want any hints for any of the posted challenges, drop me a message and I will send one. There are at least ONE hint per challenge, but it will cost you in points. :)

The first one I will share is "The Digital Dead Drop"

Description: We intercepted a suspicious image file circulating on a local USB drive. On the surface, it looks like a completely standard photograph, but our analysts suspect it is being used to smuggle data past the perimeter firewall.

You do not need to crack complex encryption or reverse-engineer advanced cryptography for this one.…

Click the following link for a song dedicated to 0ld sk00l Atari BBS Users: https://suno.com/s/rTPhe6uJ2Oys7akM

Phigan sent this over, NetCat in a .XEX file for quick connection to the Atari BBS gateway. Simple access to all the Atari Boards plus the Gateway Chat Room and its multiplayer games. FujiNet required

Or SideBurn is hosting on his TNFS at fujinet.sideburn.com