Author:
angridfbirds

Language:
C/C++

Upload:
2026-05-20 15:05

Platform:
Windows

Difficulty:
3.5

Quality:
4.0

Arch:
x86-64

Downloads:
51

Size:
243.50 KB

Writeups:
0

Comments:
0

Description

FRZ RAGE VM 9.0 — sixth iteration of the FRZ RAGE virtual machine series. Goal: find the key. On success the program prints result: FRZ{...}. On failure it prints result(hex): ... (poisoned output, no popup, no message box). Key format: FRZ9-XXXXXXXXXXX-XXXXXXXXXXX-XXXXXXXXXXX-XXXXXXXXXXX-XXXXXXXXXXX — 5 groups of 11 chars from the base32-ish alphabet 23456789ABCDEFGHJKLMNPQRSTUVWXYZ (Crockford-style; no I/O/0/1). Architecture: Two-tier VM (outer dispatcher + inner crypto core with key chaining) Rolling-key opcode encryption on the outer VM 5-round AES-128 on the critical path (intentional weakness — full AES would be unsolvable) Anti-debug as poison source, not as gate (running under a debugger gives wrong output, NO popup, NO message) MBA opaque predicates in the dispatcher (killable with SiMBA/msynth/gooMBA)

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