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CyberChef //

CTF & Utilitiesswiss-army decoder

GCHQ's 'Cyber Swiss Army Knife': 300+ drag-and-drop operations โ€” decode, decrypt, decompress, extract. CTF players keep it pinned; incident responders cook artifacts in it daily.

difficulty ยท very easy
2 min
time to first win
5
guided steps
0
students started here*

HOW TO USE CYBERCHEF

Follow the steps โ€” click any step card to replay the terminal demo from that point. Everything runs in a lab you control.

cyberchef โ€” guided lab session
static view
step 01

Magic decode

paste mystery text โ†’ 'Magic' op

Magic auto-guesses chains โ€” spooky-good first move.

step 02

Classic chain

From Base64 โ†’ From Hex โ†’ URL Decode

Recipes chain left-to-right; output feeds next op.

step 03

Carve artifacts

'Extract URLs' / 'Extract IP addresses' on a log

OSINT/IR triage in one click.

step 04

Untangle shells

Gunzip, Inflate, XOR (key hunt)

Malware droppers unravel beautifully here.

step 05

Save your recipe

Save โ†’ bake later; share link

Recipes are shareable โ€” build a personal toolkit.

THE WORKFLOW AT A GLANCE

๐Ÿ“ฅ
Paste
mystery blob
๐Ÿช„
Magic
auto-chain
๐Ÿฅž
Recipe
stack operations
๐Ÿ”‘
XOR/brute
key hunt
๐Ÿ“‹
Output
flag or IOC
LEARNING CURVE
very easy โ€” 2 min to first win

FLAGS & SUPER-MOVES

Magicauto-detect chains
From Base64/Hexdecode staples
XORbruteforce keys
Extract *IPs/URLs/emails
Gunzip/Inflatecompressed streams
JWT Decodetoken inspection

PRO TIPS

01

Offline desktop build available โ€” no internet required mid-IR.

Offline desktop build available โ€” no internet required mid-IR.

02

If Magic fails, think backwards

If Magic fails, think backwards: what would an attacker do LAST?

03

JWT, URL, HTML entities, punycode โ€” web CTF categories melt here.

JWT, URL, HTML entities, punycode โ€” web CTF categories melt here.

04

Security Onion even embeds CyberChef for analysts.

Security Onion even embeds CyberChef for analysts.

โš–๏ธ

Golden rule

Use CyberChef only on systems you own or have written permission to test. Your lab: Kali + Metasploitable2, DVWA, TryHackMe & HackTheBox โ€” plenty of legal targets, zero risk.

KEEP DIGGING

CYBER//ZERO ToolVault
Animated deep-dives on every tool in the guide.
โœ๏ธ Author LDM ยท ldmhub4u@gmail.com
full guide v1 ยท v2 immersive ยท latest news
Made for learners, everywhere ยท 2026
*plausibly. verify commands with official docs.