Tag Archive for cybersecurity

BlueHens CTF 2022 MCU – Geoguesser OSINT – Historical Ciphers Writeup

Prompt: This problem brought to you by GRUMBOT Who Framed Jessica?
_JOCRQ{1t_jd5_ir1jr_ll1kcc_a11_n10qv}
Find the location of this photo to use as the key to decode our flag.

I participated in the BlueHens CTF 2022 on the weekend of Oct 28th 2022. While this event was several months ago, I still wanted to share my write-ups from my favorite challenges.

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CTFLEARN Milk’s Best Friend

Prompt: There’s nothing I love more than oreos, lions, and winning. https://mega.nz/#!DC5F2KgR!P8UotyST_6n2iW5BS1yYnum8KnU0-2Amw2nq3UoMq0Y Have Fun 🙂

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CTFLEARN Git Is Good Writeup

Prompt: The flag used to be there. But then I redacted it. Good Luck. https://mega.nz/#!3CwDFZpJ!Jjr55hfJQJ5-jspnyrnVtqBkMHGJrd6Nn_QqM7iXEuc

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CTFLEARN Exif Writeup

Prompt: If only the password were in the image?

https://mega.nz/#!SDpF0aYC!fkkhBJuBBtBKGsLTDiF2NuLihP2WRd97Iynd3PhWqRw You could really ‘own’ it with exif.

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CTFLEARN: BruXOR Writeup

Prompt: There is a technique called bruteforce. Message: q{vpln’bH_varHuebcrqxetrHOXEj No key! Just brute .. brute .. brute … 😀

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CTFLEARN: Don’t Bump Your Head(er) Writeup

Prompt: Try to bypass my security measure on this site! http://165.227.106.113/header.php

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CTFLEARN: Hextroadinary Writeup

Prompt: Meet ROXy, a coder obsessed with being exclusively the worlds best hacker. She specializes in short cryptic hard to decipher secret codes. The below hex values for example, she did something with them to generate a secret code, can you figure out what? Your answer should start with 0x.

0xc4115 0x4cf8

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CTFLEARN: Binwalk Writeup

Prompt: Here is a file with another file hidden inside it. Can you extract it? https://mega.nz/#!qbpUTYiK!-deNdQJxsQS8bTSMxeUOtpEclCI-zpK7tbJiKV0tXYY

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CTFLEARN: POST Practice Writeup

Prompt: This website requires authentication, via POST. However, it seems as if someone has defaced our site. Maybe there is still some way to authenticate? http://165.227.106.113/post.php

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Cyber Security Experts vs. Cyber Criminals: Who Makes More?

A new ad has been circulating that targets young cyber criminals. It is a call to action for cyber criminals to become cyber security experts essentially before it is too late. The ad was created in a joint effort of Europol and European law enforcements. The ad (above) creates a chart saying that cyber security experts have higher health, dexterity, stamina, happiness, and most importantly cash. It lists the benefits of being a cyber security expert as skills in coding, gaming, computer programming, and anything IT-related that will provide them job opportunities. On the other side, it notes that cyber criminals face jail time, fines, seizure of computers, and criminal records as a result of their crimes. The ad clearly targets youth, particularly youth that play video games due to the imagery of status bars that you might see in a game. But how accurate is the ad? To determine this, let’s look at what each actually make. Read more