isyraf
Solves
| Challenge | Category | Value | Time |
| Find it! | OSINT | 500 | |
| Beware of SHA1rk | Cryptography | 20 | |
| Xtra ObscuRe Service | Cryptography | 20 | |
| Warm Up | Warm Up | 20 | |
| Base64 | Warm Up | 20 | |
| QR | Warm Up | 20 | |
| Net Cat | Warm Up | 20 | |
| Secure Shell | Warm Up | 20 | |
| nogard 1 | None | 20 | |
| Beginner Reverse 2 | Reverse Engineering | 50 | |
| Beginner Reverse 3 | Reverse Engineering | 50 | |
| Beginner Reverse 4 | Reverse Engineering | 50 | |
| Beginner Reverse 5 | Reverse Engineering | 50 | |
| Beginner Reverse 6 | Reverse Engineering | 50 |