protect your software

We can’t stop reverse engineering. We can make it hurt. Walburn turns your critical x64 code into a private virtual instruction set.

150k+

users running protected software

200+

transformation mechanisms

1b+

instructions virtualized

We virtualize the instructions others skip.

Most protectors cover the easy 80% and bail on the rest, exactly where a reverse engineer starts looking. Walburn lifts the full x64 surface, including instructions you didn’t know you shipped.

  • SSE and AVX

    SIMD vector paths, not just scalar integer ops

  • Exotic addressing and prefixes

    segment overrides, LOCK, REP, the ugly encodings

  • Self-referencing and generated code

    the constructs static tools give up on

One exe. Many machines. One build per user.

Walburn doesn’t ship a single VM to find and unwind. It packs many virtual machines into one binary, and virtualization is fast enough to run in your CI, so every customer can get a build no other copy understands.

many VMs

inside one binary, no single dispatcher to attack

new ISA

every build speaks an instruction set of its own

per user

a unique build minted in CI, one crack helps no one

Designed against the attacks that break everyone else.

Automated deobfuscation is a public research field with public tooling. We read it, reproduce it, and harden against it, so the papers that break other protectors are our test suite, not our obituary.

  • Loki: Hardening Code Obfuscation Against Automated Attacks

    USENIX Security 2022

    MBA & symbolic simplification

  • Syntia: Synthesizing the Semantics of Obfuscated Code

    USENIX Security 2017

    program synthesis on VM handlers

  • A Generic Approach to Automatic Deobfuscation of Executable Code

    IEEE S&P 2015

    dynamic taint & symbolic execution

  • VMHunt: Detecting and Extracting Virtualized Code

    ACM CCS 2018

    bytecode extraction from VMs

Strong where it matters. Native everywhere else.

Virtualization is expensive by design, and that is what makes it hard to reverse. Walburn keeps the cost surgical: only the functions you mark pay it.

~0%
overhead outside protected functions
0
runtime dependencies added
100%
of transforms applied at build time

Make them start over.

Every build is a new instruction set. Every crack starts from zero.

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