问题 I'm looking for an answer similar to the one in this question, but for WinRAR instead of 7zip. Essentially I want an authoritative signature that I can say at least "All WinRAR generated self-extracting executables created with the Default SFX file in version 420 will have bytes 0x15, 0xa1, 0x45, 0xcc, 0x21, 0x98 at location 0x00027400, and other NON SFX files are unlikely to have this signature". Even better, if the same signature can be found in all versions of the WinRAR SFX files, even if