11 | Patch Lumion

Original:

mov rax, 1 ret The function ValidateHWID compares the stored hardware ID against current hardware. To avoid license invalidation after hardware changes (or to work with pre-generated license files), patch:

Function SendActivationRequest was located in LumionNetworking.dll . The simplest patch is to make it return success without sending. patch lumion 11

Better: redirect the function to a code cave containing:

(example – actual offsets vary by build) Original bytes: E8 49 0A 00 00 85 C0 74 15 Patch to: B0 01 90 90 90 90 90 90 90 Original: mov rax, 1 ret The function ValidateHWID

call ValidateLicense test al, al jz 0x... ; jump if invalid Patch jz to jmp always (EB opcode in x86) or NOP out the test and force the branch. Lumion 11 also tries to validate the license online at launch and every 24 hours. The patch must also disable this.

This replaces call ... test eax, eax jz with mov al,1 and NOP sled. Better: redirect the function to a code cave

call LumionLicense::ValidateLicense test al, al jz license_invalid Change the function prologue or the return value.

Lumion is a real-time 3D rendering software heavily used in architecture. Version 11 introduced enhanced licensing security, including server-side key validation and local obfuscation. Before any patching, the following protection layers were identified:

original: push rbp mov rbp, rsp ... (validation logic) xor al, al ; return 0 (false) pop rbp ret patched: push rbp mov rbp, rsp ... (validation logic) ; can be NOP'd out mov al, 1 ; return 1 (true) pop rbp ret