This is a writeup of the reversing challenge damn windows from the Security Valley CTF Level: 3, Score: 40 Premise There is some exotic compiled windows executable.Can you deal with it? Link: http...

This is a writeup of the reversing challenge Forgotten lisence key from the Security Valley CTF Level: 3, Score: 30 Premise Unfortunately, I forgot my license key. Fortunately, the program is somew...

This is a writeup of the reversing challenge The Loader from the Security Valley CTF Level: 3, Score: 30 Premise I’ve seen that in malware before. There must be something inside Link: https://gith...

This is a writeup of the reversing challenge No statics from the Security Valley CTF Level: 1, Score: 10 Premise This time there is no static value inside…but you are the best. So crack it baby! L...

This is a writeup of the reversing challenge Simple ELF from the Security Valley CTF Premise Can you deal with dwarfs and elfs` Link: https://github.com/SecurityValley/PublicCTFChallenges/tree/ma...

This is a writeup of the crypto challenge Ransomware attack from the Security Valley CTF Premise Oh no! We were victims of a ransomware attack. Our forensic experts were only able to quickly secur...

This is a writeup of the crypto challenge XOR pain from the Security Valley CTF Premise There is a piece of code and a text file. Make it work!! Link: https://github.com/SecurityValley/PublicCTFC...

This is a writeup of the crypto challenge RSA from the Security Valley CTF Premise We have again capture a bunch of numbers in a list. That makes no sense at all. But a whisteblower has leak that ...

This is a writeup of the crypto challenge Thanks Microsoft from the Security Valley CTF Premise During our hack we have stolen a pieces of weird and old C code. But it seems that this was only the...

This is a writeup of the crypto challenge french from the Security Valley CTF Premise Haha, tu n’y arriveras jamais… this old french men thinks he can troll us. He sends messages and messages agai...