[Question]Finding offsets..?.

[consxx]

Hello Im just a Beginner of using CE Assembly hacks things on Dekaron...

i just want to know how do other member figure it out, in finding right offsets, and what's the method..

example :
vac hack
mov edx,[eax+1c] // how do they know this is assembly to be scan?
8B 50 1C 89 51 20 // how do they know this is offset to be scan?

please help me..