picoCTF 2022: forensics – Torrent Analyze

Ulli Weichert/ April 5, 2022/ IT-Security, Write-Ups/ 0Kommentare

Torrent Analyze Description SOS, someone is torrenting on our network. One of your colleagues has been using torrent to download some files on the company’s network. Can you identify the file(s) that were downloaded? The file name will be the flag, like picoCTF{filename}. Captured traffic. Solving Loading the pcap file into wireshark and started looking at it. At the beginning

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picoCTF 2022: forensics – St3g0

Ulli Weichert/ April 5, 2022/ IT-Security, Write-Ups/ 0Kommentare

St3g0 Description Download this image and find the flag. Download image Solving Looking at the hint We know the end sequence of the message will be $t3g0. Okay, I did some google research with that $t3g0 and found an interessting article. Downloaded the script from the github repo run it with the image FLAG 🙂 #import libraries import sys import

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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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