Using API Monitor, we log that Virbox calls USER32.CreateWindowExA at runtime. We manually add this to ImpREC.
Once the OEP is reached and the code is decrypted in memory, the researcher "dumps" that memory to a new file. virbox protector unpack
Translates original code into a proprietary instruction set executed within a custom Virtual Machine (VM) . This makes static analysis almost impossible as the original logic is no longer present in the binary. Using API Monitor, we log that Virbox calls USER32
After dumping code and reconstructing the IAT: Using API Monitor
The dumped executable runs but crashes when calling virtualized functions. We mark those functions as nops or replace them with original Windows API calls.