Flare-On
Flare-On 2015: Solving Challenge 2Solving the second Flare-On (2015) challenge: an extensionless PE file inspected with HxD, then static analysis with IDA Pro to crack a complex verification algorithm (XOR + rotate + rolling sum) and write an IDC script to recover the password.
Flare-On 2015: Solving Challenge 1Solving the first Flare-On (2015) challenge: an x86 Assembly file running as a DOS console app, static analysis with IDA Pro, and cracking a simple XOR-based password check.
Flare-On 2014: Solving Challenge 1Solving the first Flare-On (2014) challenge: a .NET binary, initial triage with DIE, decompilation with ILSpy, and decoding the flag with a Python script.