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Saturday, July 02, 2016
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HellBound Hackers | Challenges | Patching

Author

App patching 2

zenek13
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Posted on 22-01-14 20:56
This might be a spoiler. In app patching 2 do I have to change the jnz to jz? Because it works, but the checksum is incorrect.
Author

RE: App patching 2

rex_mundi
☆ Lucifer ☆



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Posted on 22-01-14 21:16
There are multiple ways that work, but only one of them will produce the correct md5 checksum needed to pass the challenge.

Forget trying jnz to jz or jne to je in this one.
U N ⓡⓔⓧ_ⓜⓤⓝⓓⓘ
Author

RE: App patching 2

zenek13
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Posted on 22-01-14 21:38
Ok, thanks
Author

RE: App patching 2

SuQuay_FuQuay
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Posted on 11-04-16 15:03
After strepping through the apps code, I've used a N*P on the C**L that X*R's the *AX, but the resulting MD5 checksum it produces is not accepted as the answer, but I'm almost certain that this is the correct way to complete it.

Anyone got any ideas where I am going wrong here ?
Author

RE: App patching 2

rex_mundi
☆ Lucifer ☆



Posts: 1968
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Posted on 11-04-16 16:23
Have a closer look at the *C* register man, before you N*P that call.
U N ⓡⓔⓧ_ⓜⓤⓝⓓⓘ
Author

RE: App patching 2

SuQuay_FuQuay
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Posted on 19-04-16 00:29
My bad. I thought I'd saved it to the app after doing that part, but I guess I hadn't. Another 60 points in the bag.Grin