capture the flag Archives

Wargames.my 2020 write-up: misc – defuse the bomb

In capture the flag, wargames.my By aimand On December 6, 2020December 8, 2020

First, list the content of the zip file $ unzip -vl bomb.zip Notice that one of the CRC32 value is different. We need to extract that single file. $ unzip bomb.zip 7.zip Next, repeat the…

Wargames.my 2020 write-up: cryptography (all)

In capture the flag, cryptography, wargames.my By aimand On December 6, 2020July 22, 2025

1. Babyrsa Unfortunately, I don’t know how the math in this challenge works. I used RsaCtfTool to solve this challenge 2. Long Crypto Guessing This challenge uses the Linear Congruential Generators (LCG) algorithm to generate…

Wargames.my 2020 write-up: Forensics (all)

In capture the flag, wargames.my By aimand On December 6, 2020December 8, 2020

1. Introduction After downloading lordkiske-server.ova, use the sha256sum command to get the hash. The flag: wgmy{the_sha256_hash} To make the following steps easier, I decided to extract the lordkiske-server.ova and mount the VMDK image inside it…

Wargames.my 2020 write-up: Web- Jika Kau Fikirkan Kau Boleh

In capture the flag, wargames.my By aimand On December 6, 2020March 24, 2023

Being the first person to solve this challenge, I was quite proud of myself. This challenge was rather simple, things you will need: a basic understanding of redis-cli a PHP shell that can execute system…