zsteg
CyberChef
| zsteg | CyberChef | |
|---|---|---|
| 4 | 286 | |
| 1,183 | 25,649 | |
| - | 2.5% | |
| 0.0 | 9.3 | |
| about 1 month ago | 3 days ago | |
| Ruby | JavaScript | |
| - | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
zsteg
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Do you think there’s something hidden in this pic?
Yeah, and it's open source.
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Yesterday afternoon a new account shared this image in Alex Bale's fan Discord. Can you help me analyze? I've been trying for a minute.
zsteg didn't find anything. reddit strips any exif. Didn't see any weird strings.
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CTF Writeup: picoCTF 2022 Forensics
I decided to use zsteg instead, with the -a option to try all known methods, and the -v option to run verbosely,
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Awesome CTF : Top Learning Resource Labs
Zsteg - PNG/BMP analysis.
CyberChef
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PicoCTF 2024: packer
Then we take the encrypted text and use CyberChef to decrypt it.
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Unbreakable 2024: secrets-of-winter
Let's go to CyberChef and insert our pieces of evidence.
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YouTube: Google has found a way to break Invidious
A parameter was changed from '2AMBCgIQBg' to 'CgIIAdgDAQ%3D%3D' which is just the correct base64 encoding they should have been using the entire time.
I don't think this was a hostile action by Google, I think someone just added better input validation for security reasons and it accidently broke the bad requests they were sending.
https://gchq.github.io/CyberChef/#recipe=URL_Decode()From_Ba...
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PicoCTF 2024- CanYouSee
❗This is indeed the flag, but the text is encrypted with Base64. Usually, the presence of padding character "=" indicates that's Base64 type of encoding (but that's only one of the hints). To decrypt it, we can use CyberChef. Copy-paste the text and we either:
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CyberChef VS DevToolboxWeb - a user suggested alternative
2 projects | 6 Feb 2024
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CyberChef from GCHQ: The Cyber Swiss Army Knife
It uses a combination of magic bytes (like the `file` command), entropy analysis and character frequency detection to determine whether an output is likely to be of interest to the user.
The file type mechanism is written here[0]. There's a list of all signatures we detect here[1].
[0] https://github.com/gchq/CyberChef/blob/master/src/core/lib/F...
- Show HN: File Hider
- UK GCHQ's CyberChef
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Lets try this again. Got a code for you to break.
I think this can be deciphered using CyberChef...
- CyberChef is a useful tool for decoding information.
What are some alternatives?
gef - GEF (GDB Enhanced Features) - a modern experience for GDB with advanced debugging capabilities for exploit devs & reverse engineers on Linux
QR-Code-generator - High-quality QR Code generator library in Java, TypeScript/JavaScript, Python, Rust, C++, C.
UglifyJS2 - JavaScript parser / mangler / compressor / beautifier toolkit
CapRover - Scalable PaaS (automated Docker+nginx) - aka Heroku on Steroids
hashcat - World's fastest and most advanced password recovery utility
py4e - Web site for www.py4e.com and source to the Python 3.0 textbook
apk2gold - CLI tool for decompiling Android apps to Java. It does resources! It does Java! Its real easy!
cyberchef-recipes - A list of cyber-chef recipes and curated links
pwntools - CTF framework and exploit development library
Ciphey - ⚡ Automatically decrypt encryptions without knowing the key or cipher, decode encodings, and crack hashes ⚡
masscan - TCP port scanner, spews SYN packets asynchronously, scanning entire Internet in under 5 minutes.
Monica - Personal CRM. Remember everything about your friends, family and business relationships.