reverseeasy
Bypass
hackthebox
Task: .NET assembly (Bypass.exe) requiring authentication bypass. Solution: Patched IL opcodes - changed ldc.i4.0 to ldc.i4.1 to make login always return true, and inverted brfalse.s to brtrue.s to bypass key check.
$ ls tags/ techniques/
binary_patchingil_opcode_modificationconditional_branch_inversion
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