Reverse engineering

For each challenges the binary file is provided. The task is to do reverse engineering with the file and find the flag. If the binary reads the flag from a file then a remotely running copy is provided with its address.

Static analysis with IDA

Reverse 1. local binary: reverse	Reverse 1b. local binary: reverse_task1
Reverse 2. local binary: reverse2 remote binary: kenobi.hackingarena.no:821	Reverse 2b. local binary: reverse_task2 remote binary: kenobi.hackingarena.no:822
Reverse 3. local binary: reverse3 remote binary: kenobi.hackingarena.no:823	Reverse 3b. local binary: reverse_task3 remote binary: kenobi.hackingarena.no:824
Reverse 4. local binary: reverse4 remote binary: kenobi.hackingarena.no:825	Reverse 4b. local binary: reverse_task4 remote binary: kenobi.hackingarena.no:826
Reverse 5. local binary: reverse5 remote binary: kenobi.hackingarena.no:827	Reverse 5b. local binary: reverse_task5 remote binary: kenobi.hackingarena.no:828
Reverse 6. local binary: reverse6 remote binary: kenobi.hackingarena.no:829	Reverse 6b. local binary: reverse_task6 remote binary: kenobi.hackingarena.no:830
Reverse 7. local binary: reverse7 remote binary: kenobi.hackingarena.no:831	Reverse 7b. local binary: reverse_task7 remote binary: kenobi.hackingarena.no:832
Parameter 1. local binary: parameter1 remote binary: kenobi.hackingarena.no:833	Parameter 2. local binary: parameter2 remote binary: kenobi.hackingarena.no:834
Parameter 3. local binary: parameter3 remote binary: kenobi.hackingarena.no:835	Parameter 4. local binary: parameter4 remote binary: kenobi.hackingarena.no:836
Encoded 1. local binary: encoded1	Encoded 2. local binary: encoded2
Encoded 3. local binary: encoded3	Encoded 4. local binary: encoded4
Encoded 5. local binary: encoded5 remote binary: kenobi.hackingarena.no:841	Encoded 6. local binary: encoded6 remote binary: kenobi.hackingarena.no:842
Array 1. local binary: array1 remote binary: kenobi.hackingarena.no:843	Array 2. local binary: array2 remote binary: kenobi.hackingarena.no:844
Class 1. local binary: class1 remote binary: kenobi.hackingarena.no:845	Class 2. local binary: class2 remote binary: kenobi.hackingarena.no:846