EXECryptor

EXECryptor is software protection tool. Its purpose is to selectively encrypt fragments of code in the program and add special code for stop debugging and disassembling. Features include: - polymorphic encryption with no constant signatures in encrypted fragments; - encrypted fragment will only be decrypted immediately before its execution; after the execution of the particular fragment it will be encrypted again (at any time during the execution there is only one protected fragment decrypted) - encryption has unlimited nesting (encrypted block inside encrypted block inside...) - single-use fragments: it is possible to mark a fragment of code so that fragment will be erased after the very first execution - user-key encryption - detect SoftIce, NtIce, FrogIce, TD and other debugger - detect registry/filesystem/API monitors - counteraction to dumping application with tools like ProcDump - anti-tracing measures - anti-disassembler measures - direct WinAPI support working around import table. - full integration with HardKey registration keymanager EXECryptor can protect any 32bit PE executable files. It was tested under W95/98/ME/2000/NT/XP. SDK available for Delphi, CBuilder, MSVC.

Keywords: fragment, encrypted, execution, encryption, execryptor, code, after