Themida is a commercial known packer that embeds several features including anti-debugging, virtual machine emulation, encryption…

• Anti-debugger techniques that detect/fool any kind of debugger

• Anti-memory dumpers techniques for any Ring3 and Ring0 dumpers

• Different encryption algorithms and keys in each protected application

• Anti-API scanners techniques that avoids reconstruction of original import table

• Automatic decompilation and scrambling techniques in target application …