SCTF is a CTF contest hold by XCTF ( seems like a Chinese version’s CTFtime.org ). Teaming up with my labmates, we have a lot of fun solving the challenges, and scored 2161 pts with the final rank ...

Description: Find flag in this file After extracting data in the compressed file, we found a .pcap file. Analyze the file with Wireshark, we found there’re lots of ICMP packets in it. After chec...

Description: Connect here and find the flag: nc asis-ctf.ir 12435 After we connect to the server, it show us the following message: hi all, You must send a string for each level that would make...

Both challenges are kind of easy, so I decide to put their writeups together. How much exactly? Description: 4046925: How much the exact IM per year? just do some search on the internet, and we’...

First the challenge gave us a binary file (ELF for Intel-386). But we can’t execute it, cause we don’t have the required shared library “libchallengeresponse.so”. So we will have to launch IDA Pro ...

CSAW CTF 2014 is the second CTF contest I’ve attended ( the first one was the HITCON CTF 2014 ) . Since this is the first time I’ve actually solved something in the contest, I decide to post my fir...