2021weight 22.50D^3CTF Organizers
D^3CTF 2021
2 challenges with 3 published community solutions between them. Solution links go to CTFtime’s task page, which aggregates every writeup for a challenge - individual blog posts rot, the aggregator does not.
Full task list on CTFtimeReverse engineering1
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
Solve it with:Strings extractor for binaries and blobsWebAssembly disassemblerJava .class disassemblerPython .pyc bytecode disassemblerLearn: Binary exploitation
- re
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Uncategorised1
The upstream scoreboard did not say, so neither do we.
Crack
2 official solutionsAlso written up in: Ex-Origin/ctf-writeups, fei9747/ctf-writeups