Posts
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crackmes.one CTF 2026 - crackme9
Reversing a challenge with breakpoint-based obfuscation -
Experimenting with Binary Ninja IL rewriting
Trying (and failing) to solve a crackme with the IL modification API -
Flare-On 12 writeup: 09 - 10000
Reversing 10000 executables -
Flare-On 11 writeup: 07 - fullspeed
.NET AOT reversing and breaking a custom elliptic curve -
BGGP5: Download
Constructing a tiny ELF file -
Reverse engineering the XZ backdoor
An in-depth look at the backdoor in XZ -
HTB Apocalypse CTF 2024 - arranged
Exploiting a weak elliptic curve -
Flare-On 10 writeup: 11 - over_the_rainbow
Attacking a weak RSA implementation -
Solving the Goldbox Crackme
Reversing a crackme with anti-disassembly -
ROPEmporium Writeups
Writeups and solve scripts for all ROPEmporium challenges -
Analyzing TeslaCrypt
Writing a decryptor for a weak encryption algorithm -
Introduction to Elliptic Curve Diffie-Hellman
An overview of ECDH key exchange -
Analyzing Hive ransomware
Reversing a custom encryption algorithm -
Writing a decryptor for Jaff ransomware
Analyzing a vulnerable ransomware sample -
VM-based obfuscation in Rhadamanthys Stealer
Reversing a VM and decoding obfuscated shellcode -
Revisiting Emotet
Learning to reverse obfuscation with Binary Ninja scripting -
Analyzing RedLine
Analyzing a .NET infostealer -
Analyzing the Azov data wiper
Reversing a data wiper disguising itself as ransomware -
HITCON CTF 2022 - Meow Way
Flag checker using Heaven's Gate -
Flare-On 9 writeup: 08 - backdoor
Reversing an obfuscated .NET binary -
MapleCTF 2022 - vm-v2
System Verilog VM -
DiceCTF @ HOPE 2022 - dumb
Flag checker using snarkjs -
ImaginaryCTF 2022 - wired
AVR assembly reversing
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