MetaRed CTF 2021: Stego – Noise / Writeup

Ulli Weichert/ November 18, 2021/ IT-Security, Write-Ups/ 0Kommentare

Noise Messi: ‚When the year starts, the objective is to win with all the team, personal records are secondary‘ Todos Given was this picture: In this stego challenges the first approach is to check the file type and look for some strings. $ ~ # file challenge.png challenge.png: PNG image data, 926 x 1262, 8-bit grayscale, non-interlaced That looks normal…

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MetaRed CTF 2021: Stego – Friends / Writeup

Ulli Weichert/ November 18, 2021/ IT-Security, Write-Ups/ 0Kommentare

Friends Bielsa: ‚Everything is allowed, except stop fighting‘ Given was this image: Todos Like always – I check strings and exiftools and the file itself! But no command give us something. $ ~ # file messi.jpg messi.jpg: JPEG image data, JFIF standard 1.01, aspect ratio, density 1×1, segment length 16, baseline, precision 8, 720×628, components 3 exiftool messi.jpg > messi.jpg_exifdata

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BSides Jeddah CTF 2021: Category pcap / Writeup

Marco Schmidt/ Oktober 28, 2021/ IT-Security, Write-Ups/ 0Kommentare

BSides-Jeddah-CTF Writeups to the BSides Jeddah CTF – 2021 Situation – BSides Jeddah BSides Jeddah is coming up with a blueteam flavored CTF this year hosted by CyberDefenders. This will be a Jeopardy-style intermediate CTF with a few harder challenges, including network analysis, memory forensics, and malicious document analysis. To get latest updates, follow us on twitter @JeddahBsides , @CyberDefenders.

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BSides Jeddah CTF 2021: Category memdump / Writeup

Ulli Weichert/ Oktober 28, 2021/ IT-Security, Write-Ups/ 0Kommentare

BSides-Jeddah-CTF Writeup to the BSides Jeddah CTF – 2021 Situation – BSides Jeddah BSides Jeddah is coming up with a blueteam flavored CTF this year hosted by CyberDefenders. This will be a Jeopardy-style intermediate CTF with a few harder challenges, including network analysis, memory forensics and malicious document analysis. To get the latest updates, follow us on twitter @JeddahBsides ,

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DEADFACE CTF 2021: Cryptography2 – Poor MEGAN! / Writeup

Ulli Weichert/ Oktober 18, 2021/ IT-Security, Write-Ups/ 0Kommentare

Poor MEGAN! Points 20 Description Oh, NO! Poor Megan! She’s just been bitten by a ZOMBIE! We can save her if we act fast, but the formula for the antidote has been scrambled somehow. Figure out how to unscramble the formula to save Megan from certain zombification. Enter the answer as flag{here-is-the-answer}. The formula for the antidote: j2rXjx9dkhW9eLKsnMR9cLDVjh/9dwz1QfGXm+b9=wKslL1Zpb45 Getting the

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