---
title: "BITSCTF 2026 Writeups | OSINT And Steganography / Forensics Challenges"
url: https://daily.dev/posts/bitsctf-2026-writeups-osint-and-steganography-forensics-challenges-7t34xidkl
source_url: https://infosecwriteups.com/bitsctf-2026-writeups-osint-and-steganography-forensics-challenges-b91257ca0856
type: article
source: "InfoSec Write-ups"
published: 2026-06-19T11:56:48.258Z
updated: 2026-06-19T11:57:21.055Z
tags: ["cryptography", "osint"]
reading_time: 5
upvotes: 0
comments: 0
language: en
---

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# BITSCTF 2026 Writeups | OSINT And Steganography / Forensics Challenges

**[InfoSec Write-ups](https://daily.dev/sources/infosecwriteups)** · 5 min read · 0 upvotes · 0 comments

## Summary

Writeups for BITSCTF 2026 covering OSINT and steganography/forensics challenges. The OSINT challenge involves identifying a Copenhagen landmark post-fire, using Google Maps Street View and What3Words to decode a geocoded flag. The steganography challenges involve multi-step techniques: extracting hidden files with binwalk, LSB analysis with zsteg, XOR decryption via CyberChef, and executing Malbolge esoteric code. A second stego challenge requires extracting byte layers from a 64-bit floating-point TIFF using Python/NumPy, navigating a decoy QR code, and using GIMP color threshold adjustments to reveal a fragmented flag.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://infosecwriteups.com/bitsctf-2026-writeups-osint-and-steganography-forensics-challenges-b91257ca0856>

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Tags: [#cryptography](https://daily.dev/tags/cryptography), [#osint](https://daily.dev/tags/osint)

[View this post on daily.dev](https://daily.dev/posts/bitsctf-2026-writeups-osint-and-steganography-forensics-challenges-7t34xidkl)