Medium Live

Jumper

60 points

160 Solves

Reverse Engineering

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Community Rating: 4.27 / 5

Headline

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Hey, I have this simple assembly code: https://mega.nz/#!SPwVzbQD!oSwwdjhel_hhJ6DzlWYPJk4O5mShUZbWMaPtC1amXlA. I need YOUR help. On a particular instruction (address 0x80484e2) I want to know where the call instruction is jumping to (i.e. the address that we are jumping to) (If the user inputs in 'jump'). Specify your answer as a hex number prefixed with '0x', with no leading zeros. Ex. 0x1234. Good luck!

First 10 Solvers

Rank Username
1 kronos
2 95570e9a
3 grado
4 Bgf9Khpj
5 lonelyboyz
Rank Username
6 kolibrik7
7 0xcpu
8 tenchijin
9 xaxaxa
10 Yeraisci

Comments

    • nierusek

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      [REDACTED] This comment is only shown to users who have solved this challenge.

      • nierusek

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        Note to everyone: apparently you can't see your own protected comments if you didn't solve.

      • nierusek

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        [REDACTED] This comment is only shown to users who have solved this challenge.

    • cyberman184

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      [REDACTED] This comment is only shown to users who have solved this challenge.

    • dachosen1

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      Super fun challenge. If assembly is something you struggle with, this is a good one to learn from.

      • dachosen1

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        It's also good if you struggle with focusing on the instructions of the challenge itself!

    • Fl4Gg3R

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      F***ing finally solved it. Really satisfying when i finally solve the challenge.

    • Fl4Gg3R

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      [REDACTED] This comment is only shown to users who have solved this challenge.

      • SpongeBoob ctflearn++ badge

        0.0

        not to spoil too much: consider how 'jump' maps into little endian dword ;)