crackme 13 - acid burn

UI

it has a nag
image1
after the nag, you would see this UI
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click on serial/name button, you need to input seiral and name , click on serial button, you just need to input serial.
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and
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Debug

use ollydb to start the program, firstly figure out the memory address which hold username

image5
continue

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from above image, we can see the hardcoded serials 

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堆栈 ss:[0019FAC0]=09DA63A4, (ASCII "CW-9512-CRACKED")
eax=09DA63A4, (ASCII "CW-9512-CRACKED")

try with it, it works
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now we get the serial for the username. but we can also just input serial. so keep debugging
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I figure out the serial also hardcoded. 

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堆栈 ss:[0019F5F4]=09F18864, (ASCII "Hello Dude!")
edx=09F18864, (ASCII "Hello Dude!")

try the one, it also works.
image9

for this crackme , there is no keygen needed, all serials are hardcoded. so it is pretty easy!