Hex to Asm
Hex to Asm
Advanced crackers or already have this or know it by heart, but for people learning like me it's very helpfull =)
this is a list usefull asm commands (asm is the language to wich decompilers like olly decode files to)
for example; you want the program to jump to the same place whether you got the right cd-key or not.
Hex: Asm: Meaning.
74 je Jump if equal. 75 jne Jump if not equal. 77 ja Jump if above. EB jmp Jump. 90 nop No Operation(Used to wipe out commands). 0F82 jnae Jump if not greater or equal. 0F82 jb Jump if less then. 0F83 jnb Jump if not less then. 0F83 jna Jump if not above. 0F86 jbe Jump if less then or equal to. 0F87 jnbe Jump if not less then or equal to. 0F8F jg Jump if greater. 0F8E jng Jump if not greater. 0F8C jnge Jump if not greater or equal. 0F8C jl Jump if less then. 0F8D jnl Jump if not less then. 0F8E jle Jump if less or equal. 0F8D jnle Jump if not less or equal.
plz rank this if you find it helpfull =)
ghost 18 years ago
Maybe a good ASM tutorial should be better to begin … do you know some good ASM tutorial ?