Level 3 — CTF in the Field and Attack Skills Deepened

Step 176. CTF First Taste 1: Five Web Challenges — Entering the Real Arena

Step 176. CTF First Taste 1: Five Web Challenges — Entering the Real Arena Level 3 — CTF in the Field and Attack Skills Deepened | Difficulty ★★★☆☆ | Estimated time: 5…
읽기 →
Step 177. CTF Taste Test 2: Pwn Challenge (pwnable.kr) — First Encounter with a Binary

Step 177. CTF Taste Test 2: Pwn Challenge (pwnable.kr) — First Encounter with a Binary Level 3 — Real-World CTF and Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 6 hours…
읽기 →
Step 178. CTF Taste Test 3: Reversing — Two crackmes + Ghidra — How to Read Without Source

Step 178. CTF Taste Test 3: Reversing — Two crackmes + Ghidra — How to Read Without Source Level 3 — Real-World CTF and Advanced Attack Skills | Difficulty ★★★★☆ | Estimated…
읽기 →
Step 179. CTF Taste Test 4: Three Crypto Intros — Cryptography as Math Puzzles

Step 179. CTF Taste Test 4: Three Crypto Intros — Cryptography as Math Puzzles Level 3 — Real-World CTF and Advanced Attack Skills | Difficulty ★★★☆☆ | Estimated time: 5 hours Prerequisites:…
읽기 →
Step 180. CTF Taste Test 5: Forensics & Misc 3 — Dissecting Suspicious Files

Step 180. CTF Taste Test 5: Forensics & Misc 3 — Dissecting Suspicious Files Level 3 — Real-World CTF and Advanced Attack Skills | Difficulty ★★★☆☆ | Estimated time: 5 hours Prerequisites:…
읽기 →
Step 181. ★ Choosing Your Main Field + Deciding a Secondary — What Kind of Player Am I?

Step 181. ★ Choosing Your Main Field + Deciding a Secondary — What Kind of Player Am I? Level 3 — Real-World CTF and Advanced Attack Skills | Difficulty ★★☆☆☆ | Estimated…
읽기 →
Step 182. Assembly 1: Registers, mov/push/pop/call/ret, Stack Frames — The Alphabet of the Common Language

Step 182. Assembly 1: Registers, mov/push/pop/call/ret, Stack Frames — The Alphabet of the Common Language Level 3 — Real-World CTF and Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 6 hours…
읽기 →
Step 183. Assembly 2: gdb Basics — A Microscope for Running Programs

Step 183. Assembly 2: gdb Basics — A Microscope for Running Programs Level 3 — Real-World CTF and Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 5 hours Prerequisites: Step 182…
읽기 →
Step 184. Assembly 3: Following a C Program Line by Line in gdb — Live Coverage of the Calling Convention

Step 184. Assembly 3: Following a C Program Line by Line in gdb — Live Coverage of the Calling Convention Level 3 — Pwn Track | Difficulty ★★★★☆ | Estimated time: 4…
읽기 →
Step 185. The Stack, Fully Understood — A Complete Map of What Piles Up on a Function Call

Step 185. The Stack, Fully Understood — A Complete Map of What Piles Up on a Function Call Level 3 — Pwn Track | Difficulty ★★★★☆ | Estimated time: 4 hours Prerequisites:…
읽기 →
Step 186. ★ Reproducing a Buffer Overflow: RET Overwrite Success — Your First Memory Attack

Step 186. ★ Reproducing a Buffer Overflow: RET Overwrite Success — Your First Memory Attack Level 3 — Pwn Track | Difficulty ★★★★★ | Estimated time: 5 hours Prerequisites: you’ve finished Steps…
읽기 →
Step 187. Protections: NX, ASLR, Canary, PIE — A Map of the Four-Layer Defense

Step 187. Protections: NX, ASLR, Canary, PIE — A Map of the Four-Layer Defense Level 3 — Pwn Track | Difficulty ★★★★☆ | Estimated time: 4 hours Prerequisites: you’ve finished Step 186.…
읽기 →
Step 188. pwntools 101: Connections, p64, Payload Automation — From Hand Attacks to Scripts

Step 188. pwntools 101: Connections, p64, Payload Automation — From Hand Attacks to Scripts Level 3 — Pwn Track | Difficulty ★★★☆☆ | Estimated time: 4 hours Prerequisites: you’ve finished Steps 186–187.…
읽기 →
Step 189. ★ Mini Project: Completing an Overflow Exploit Script — Turning a Hand Attack into Engineering

Step 189. ★ Mini Project: Completing an Overflow Exploit Script — Turning a Hand Attack into Engineering Level 3 — CTF in the Field & Advanced Attack Skills | Difficulty ★★★★☆ |…
읽기 →
Step 190. Finding/Forming a Team + the CTFtime Calendar — Turning a Solo Game into a Team Sport

Step 190. Finding/Forming a Team + the CTFtime Calendar — Turning a Solo Game into a Team Sport Level 3 — CTF in the Field & Advanced Attack Skills | Difficulty ★★☆☆☆…
읽기 →
Step 191. PortSwigger Academy: Advanced SQLi — Blind, time-based, OOB

Step 191. PortSwigger Academy: Advanced SQLi — Blind, time-based, OOB Level 3 — CTF in the Field & Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 4 hours Prerequisites: in Step…
읽기 →
Step 192. Advanced XSS: CSP Bypass, DOM Deep Dive — Attacking Where Defenses Exist

Step 192. Advanced XSS: CSP Bypass, DOM Deep Dive — Attacking Where Defenses Exist Level 3 — CTF in the Field & Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 4…
읽기 →
Step 193. SSTI: Template Injection → RCE — When Your Input Becomes the Server’s Code

Step 193. SSTI: Template Injection → RCE — When Your Input Becomes the Server’s Code Level 3 — Real-World CTF & Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 3.5 hours…
읽기 →
Step 194. SSRF — Making the Server Your Proxy to Read the Internal Network

Step 194. SSRF — Making the Server Your Proxy to Read the Internal Network Level 3 — Real-World CTF & Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 3 hours Prerequisites:…
읽기 →
Step 195. XXE — The File-Reading Command Hidden in the XML Parser

Step 195. XXE — The File-Reading Command Hidden in the XML Parser Level 3 — Real-World CTF & Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 3 hours Prerequisites: you’ve finished…
읽기 →
Step 196. Deserialization Vulnerabilities — The Moment Data Becomes Code

Step 196. Deserialization Vulnerabilities — The Moment Data Becomes Code Level 3 — Real-World CTF & Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 3 hours Prerequisites: you’ve finished Step 195…
읽기 →
Step 197. Advanced JWT Attacks — Becoming Admin via alg Confusion and Weak Secrets

Step 197. Advanced JWT Attacks — Becoming Admin via alg Confusion and Weak Secrets Level 3 — Real-World CTF & Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 3 hours Prerequisites:…
읽기 →
Step 198. GraphQL/API Security — Enter Through One Door, Read the Whole Schema

Step 198. GraphQL/API Security — Enter Through One Door, Read the Whole Schema Level 3 — Real-World CTF & Advanced Attack Skills | Difficulty ★★★☆☆ | Estimated time: 3 hours Prerequisites: you’ve…
읽기 →
Step 199. Webhacking.kr 1–15 — The Korean Wargame Sampler Pack

Step 199. Webhacking.kr 1–15 — The Korean Wargame Sampler Pack Level 3 — Real-World CTF & Advanced Attack Skills | Difficulty ★★★☆☆ | Estimated time: 6 hours (two days recommended) Prerequisites: you’ve…
읽기 →
Step 200. Webhacking.kr 16–30 — Creative Combinations of Techniques

Step 200. Webhacking.kr 16–30 — Creative Combinations of Techniques Level 3 — Real-World CTF & Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 8 hours (two to three days recommended) Prerequisites:…
읽기 →
Step 201. Race Conditions & HTTP Request Smuggling — Attacks of the Instant and the Misalignment

Step 201. Race Conditions & HTTP Request Smuggling — Attacks of the Instant and the Misalignment Level 3 — Practical CTF & Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 4…
읽기 →
Step 202. ★ Midterm Check: Solve Three Intermediate Web Challenges Independently in a Row — The No-Write-up Zone

Step 202. ★ Midterm Check: Solve Three Intermediate Web Challenges Independently in a Row — The No-Write-up Zone Level 3 — Practical CTF & Advanced Attack Skills | Difficulty ★★★★☆ | Estimated…
읽기 →
Step 203. Writing Shellcode: Hand-Crafting an execve Shellcode — The 29 Bytes That Spawn a Shell

Step 203. Writing Shellcode: Hand-Crafting an execve Shellcode — The 29 Bytes That Spawn a Shell Level 3 — Practical CTF & Advanced Attack Skills | Difficulty ★★★★★ | Estimated time: 5…
읽기 →
Step 204. ret2win: Calling the Function You Want — RET Overwrite That Even Hands Over the Argument

Step 204. ret2win: Calling the Function You Want — RET Overwrite That Even Hands Over the Argument Level 3 — Pwn Track | Difficulty ★★★★☆ | Estimated time: 4 hours Prerequisites: you’ve…
읽기 →
Step 205. ROP 1: The Gadget Concept, ROPgadget/ropper — The Assembly Art of Code Fragments

Step 205. ROP 1: The Gadget Concept, ROPgadget/ropper — The Assembly Art of Code Fragments Level 3 — Pwn Track | Difficulty ★★★★☆ | Estimated time: 4 hours Prerequisites: you’ve finished Step…
읽기 →
Step 206. ROP 2: Calling system(“/bin/sh”) with a Chain — Past NX, Into a Shell

Step 206. ROP 2: Calling system("/bin/sh") with a Chain — Past NX, Into a Shell Level 3 — Pwn Track | Difficulty ★★★★★ | Estimated time: 5 hours Prerequisites: you’ve finished Steps…
읽기 →
Step 207. ret2libc: Leaking the libc Address to Bypass ASLR — Tracing an Address That Changes Every Run

Step 207. ret2libc: Leaking the libc Address to Bypass ASLR — Tracing an Address That Changes Every Run Level 3 — Pwn Track | Difficulty ★★★★★ | Estimated time: 6 hours Prerequisites:…
읽기 →
Step 208. Format String: Writing Memory with %n — An Attack That Writes Through a Print Function

Step 208. Format String: Writing Memory with %n — An Attack That Writes Through a Print Function Level 3 — Pwn Track | Difficulty ★★★★☆ | Estimated time: 5 hours Prerequisites: you’ve…
읽기 →
Step 209. Finishing pwnable.kr Toddler’s Bottle — Graduation Day for the Beginner Wargame

Step 209. Finishing pwnable.kr Toddler’s Bottle — Graduation Day for the Beginner Wargame Level 3 — Real-World CTF & Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 10 hours (spread over…
읽기 →
Step 210. Understanding GOT/PLT and the GOT Overwrite — Hijacking Function Calls

Step 210. Understanding GOT/PLT and the GOT Overwrite — Hijacking Function Calls Level 3 — Real-World CTF & Advanced Attack Skills | Difficulty ★★★★★ | Estimated time: 6 hours Prerequisites: Step 209…
읽기 →
Step 211. Heap Fundamentals: Allocator Behavior and the Use-After-Free Concept — Reusing Returned Land

Step 211. Heap Fundamentals: Allocator Behavior and the Use-After-Free Concept — Reusing Returned Land Level 3 — Real-World CTF & Advanced Attack Skills | Difficulty ★★★★☆ | Estimated time: 5 hours Prerequisites:…
읽기 →
Step 212. A Taste of Heap Exploitation: tcache Poisoning — Overwriting the Queue’s Ledger

Step 212. A Taste of Heap Exploitation: tcache Poisoning — Overwriting the Queue’s Ledger Level 3 — Real-World CTF & Advanced Attack Skills | Difficulty ★★★★★ | Estimated time: 6 hours Prerequisites:…
읽기 →
Step 213. Three Easy pwnable.tw Challenges — Into a World Without Source

Step 213. Three Easy pwnable.tw Challenges — Into a World Without Source Level 3 — Real-World CTF & Advanced Attack Skills | Difficulty ★★★★★ | Estimated time: 12 hours (spread over several…
읽기 →
Step 214. ★ Midterm Check: Independent Exploitation of a Canary+NX Binary — Leak It, Keep It Alive, Overwrite It

Step 214. ★ Midterm Check: Independent Exploitation of a Canary+NX Binary — Leak It, Keep It Alive, Overwrite It Level 3 — Pwn Track | Difficulty ★★★★★ | Estimated time: 6 hours…
읽기 →
Step 215. Ghidra In Depth: Function Analysis and Struct Recovery — Turning Machine-Made Names into Human Language

Step 215. Ghidra In Depth: Function Analysis and Struct Recovery — Turning Machine-Made Names into Human Language Level 3 — Reversing Track | Difficulty ★★★☆☆ | Estimated time: 5 hours Prerequisites: you’ve…
읽기 →
Step 216. x64dbg In Depth: Memory Breakpoints and Patching — Surgery on a Running Program

Step 216. x64dbg In Depth: Memory Breakpoints and Patching — Surgery on a Running Program Level 3 — Reversing Track | Difficulty ★★★☆☆ | Estimated time: 5 hours Prerequisites: you’ve finished Step…
읽기 →
Step 217. 10 crackmes (Easy Difficulty) — Building the Speed to Recognize Patterns

Step 217. 10 crackmes (Easy Difficulty) — Building the Speed to Recognize Patterns Level 3 — Reversing Track | Difficulty ★★★☆☆ | Estimated time: 6 hours Prerequisites: you’ve finished Step 178 (Reversing…
읽기 →
Step 218. 10 crackmes (Medium Difficulty) — Reading Relations, Opening Gates One by One

Step 218. 10 crackmes (Medium Difficulty) — Reading Relations, Opening Gates One by One Level 3 — Reversing Track | Difficulty ★★★★☆ | Estimated time: 8 hours Prerequisites: you’ve finished Step 217…
읽기 →
Step 219. Anti-Debugging Techniques and Bypasses — Programs That Dodge Debuggers, and How to Break Through

Step 219. Anti-Debugging Techniques and Bypasses — Programs That Dodge Debuggers, and How to Break Through Level 3 — Advanced Reversing | Difficulty ★★★★☆ | Estimated time: 4 hours Prerequisites: Step 178…
읽기 →
Step 220. Packing and Unpacking — UPX and Finding the OEP

Step 220. Packing and Unpacking — UPX and Finding the OEP Level 3 — Advanced Reversing | Difficulty ★★★★☆ | Estimated time: 4 hours Prerequisites: Step 219 (Anti-Debugging Techniques and Bypasses), Step…
읽기 →
Step 221. Keygen — Serial Algorithm Analysis and Writing a Generator

Step 221. Keygen — Serial Algorithm Analysis and Writing a Generator Level 3 — Advanced Reversing (Project) | Difficulty ★★★★★ | Estimated time: 6 hours Prerequisites: Step 219 (Anti-Debugging), Step 178 (Intro…
읽기 →
Step 222. Reversing .NET and Python Binaries — Binaries That Aren’t Machine Code

Step 222. Reversing .NET and Python Binaries — Binaries That Aren’t Machine Code Level 3 — Advanced Reversing | Difficulty ★★★☆☆ | Estimated time: 3 hours Prerequisites: Step 221 (Keygen), Step 178…
읽기 →
Step 223. A First Taste of Android APK Analysis — jadx

Step 223. A First Taste of Android APK Analysis — jadx Level 3 — Advanced Reversing | Difficulty ★★★☆☆ | Estimated time: 3 hours Prerequisites: Step 222 (.NET/Python Binary Reversing). Having seen…
읽기 →
Step 224. Strategies for Analyzing Obfuscated Code — Read It Head-On and You Lose

Step 224. Strategies for Analyzing Obfuscated Code — Read It Head-On and You Lose Level 3 — Real CTF and Advanced Attack Skills | Difficulty ★★★☆☆ | Estimated time: 4 hours Prerequisites:…
읽기 →
Step 225. Static Malware Analysis (Isolated Lab Required) — Reading the Insides Without Running It

Step 225. Static Malware Analysis (Isolated Lab Required) — Reading the Insides Without Running It Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 5 hours…
읽기 →
Step 226. ★ Mid-Check: Independently Dissecting a Medium-Difficulty crackme — No Solutions, All the Way

Step 226. ★ Mid-Check: Independently Dissecting a Medium-Difficulty crackme — No Solutions, All the Way Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 8–12 hours…
읽기 →
Step 227. Math Foundations: Modular Arithmetic, the Euclidean Algorithm, Euler’s Theorem — Crypto’s Minimum Armament

Step 227. Math Foundations: Modular Arithmetic, the Euclidean Algorithm, Euler’s Theorem — Crypto’s Minimum Armament Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★☆☆☆ | Estimated time: 3 hours…
읽기 →
Step 228. Full RSA Implementation: From Key Generation to Encryption/Decryption — The Textbook, by My Own Hands

Step 228. Full RSA Implementation: From Key Generation to Encryption/Decryption — The Textbook, by My Own Hands Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time:…
읽기 →
Step 229. RSA Attacks 1: Small e, Common Modulus — The Moment Implementation Mistakes Become Mathematical Weaknesses

Step 229. RSA Attacks 1: Small e, Common Modulus — The Moment Implementation Mistakes Become Mathematical Weaknesses Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time:…
읽기 →
Step 230. RSA Attacks 2: Fermat Factorization, Wiener’s Attack — When Key Generation Is Botched, the Math Collapses

Step 230. RSA Attacks 2: Fermat Factorization, Wiener’s Attack — When Key Generation Is Botched, the Math Collapses Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated…
읽기 →
Step 231. Completing Cryptopals Set 1 — The Textbook of XOR Attacks, in My Code

Step 231. Completing Cryptopals Set 1 — The Textbook of XOR Attacks, in My Code Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time: 6 hours…
읽기 →
Step 232. Cryptopals Set 2: ECB/CBC, the Padding Oracle — Piercing the Block Cipher’s Cracks

Step 232. Cryptopals Set 2: ECB/CBC, the Padding Oracle — Piercing the Block Cipher’s Cracks Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 6 hours…
읽기 →
Step 233. AES Structure and Mode-Specific Vulnerabilities — Anatomy of the World Standard and a Map of Failures

Step 233. AES Structure and Mode-Specific Vulnerabilities — Anatomy of the World Standard and a Map of Failures Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated…
읽기 →
Step 234. Hash Attacks: Length Extension and Collision Concepts — What Happens When You Use a Hash as a “Signature”

Step 234. Hash Attacks: Length Extension and Collision Concepts — What Happens When You Use a Hash as a "Signature" Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆…
읽기 →
Step 235. DH Key Exchange and an MITM Simulation — Making a Secret on an Eavesdropped Channel, and Its Limits

Step 235. DH Key Exchange and an MITM Simulation — Making a Secret on an Eavesdropped Channel, and Its Limits Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆…
읽기 →
Step 236. A Taste of ECC: Addition on an Elliptic Curve — Adding Points to Build a Cipher

Step 236. A Taste of ECC: Addition on an Elliptic Curve — Adding Points to Build a Cipher Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated…
읽기 →
Step 237. 10 Real CTF Crypto Problems — The Day You Deploy Your Arsenal in the Field

Step 237. 10 Real CTF Crypto Problems — The Day You Deploy Your Arsenal in the Field Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time:…
읽기 →
Step 238. ★ Midterm Check: Independently Solving 5 Medium Crypto Problems — The Write-up Forbidden Zone

Step 238. ★ Midterm Check: Independently Solving 5 Medium Crypto Problems — The Write-up Forbidden Zone Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 15+…
읽기 →
Step 239. Hex and File Signatures: file, binwalk, Manual Carving — An Identity Check on Six Bytes

Step 239. Hex and File Signatures: file, binwalk, Manual Carving — An Identity Check on Six Bytes Level 3 — Forensics Track | Difficulty ★★☆☆☆ | Estimated time: 3 hours Prerequisites: Step…
읽기 →
Step 240. Steganography: LSB, zsteg, Audio Spectrograms — The Letter Behind the Visible Picture

Step 240. Steganography: LSB, zsteg, Audio Spectrograms — The Letter Behind the Visible Picture Level 3 — Forensics Track | Difficulty ★★★☆☆ | Estimated time: 4 hours Prerequisites: Step 239 (magic bytes,…
읽기 →
Step 241. Advanced pcap Analysis: Wireshark Advanced Filters, tshark — Reconstructing an Incident from Ten Thousand Packets

Step 241. Advanced pcap Analysis: Wireshark Advanced Filters, tshark — Reconstructing an Incident from Ten Thousand Packets Level 3 — Forensics Track | Difficulty ★★★★☆ | Estimated time: 5 hours Prerequisites: Steps…
읽기 →
Step 242. Memory Forensics: Volatility 3 — How to Catch Evidence That Vanishes When the Power Goes Off

Step 242. Memory Forensics: Volatility 3 — How to Catch Evidence That Vanishes When the Power Goes Off Level 3 — Forensics Track | Difficulty ★★★★☆ | Estimated time: 5 hours Prerequisites:…
읽기 →
Step 243. Disk Forensics: Autopsy, Deleted-File Recovery — What’s Deleted Isn’t Gone

Step 243. Disk Forensics: Autopsy, Deleted-File Recovery — What’s Deleted Isn’t Gone Level 3 — Forensics Track | Difficulty ★★★★☆ | Estimated time: 5 hours Prerequisites: Step 239 (signatures, carving) and Step…
읽기 →
Step 244. Windows Forensics: Registry, Event Logs, Prefetch — Digging Through the Archive of Execution Traces

Step 244. Windows Forensics: Registry, Event Logs, Prefetch — Digging Through the Archive of Execution Traces Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time: 3–4…
읽기 →
Step 245. Log Analysis Scenario: Reconstructing an Intrusion Timeline — Scattered Puzzle Pieces into a Single Line of Story

Step 245. Log Analysis Scenario: Reconstructing an Intrusion Timeline — Scattered Puzzle Pieces into a Single Line of Story Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ |…
읽기 →
Step 246. EXIF/Metadata and Document Forensics — Reading the Fingerprints Engraved Inside Files

Step 246. EXIF/Metadata and Document Forensics — Reading the Fingerprints Engraved Inside Files Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time: 3–4 hours Prerequisites: Step…
읽기 →
Step 247. Encrypted-Artifact Recovery Techniques — Three Keys That Open Locked Evidence

Step 247. Encrypted-Artifact Recovery Techniques — Three Keys That Open Locked Evidence Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 3–4 hours Prerequisites: Step 90…
읽기 →
Step 248. Five Comprehensive Forensics Challenges — Linking the Chain of Techniques on Your Own

Step 248. Five Comprehensive Forensics Challenges — Linking the Chain of Techniques on Your Own Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 4–6 hours…
읽기 →
Step 249. Network Breach Analysis Simulation — Reconstructing the Incident Inside Packets

Step 249. Network Breach Analysis Simulation — Reconstructing the Incident Inside Packets Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 3 hours Prerequisites: Step 83~84…
읽기 →
Step 250. ★ Mid-Track Check: Solving a Comprehensive Forensics Challenge Independently + Report — Becoming Someone Who Proves

Step 250. ★ Mid-Track Check: Solving a Comprehensive Forensics Challenge Independently + Report — Becoming Someone Who Proves Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated…
읽기 →
Step 251. TryHackMe Intro Path + 3 Easy Rooms — Opening the Door to Real Machines

Step 251. TryHackMe Intro Path + 3 Easy Rooms — Opening the Door to Real Machines Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time: 3…
읽기 →
Step 252. THM Easy ×5 (8 Cumulative) — Engraving the Routine into Your Fingers

Step 252. THM Easy ×5 (8 Cumulative) — Engraving the Routine into Your Fingers Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time: 5 hours Prerequisites:…
읽기 →
Step 253. THM Linux Privesc Rooms (13 Cumulative) — After the Shell, All the Way to root

Step 253. THM Linux Privesc Rooms (13 Cumulative) — After the Shell, All the Way to root Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time:…
읽기 →
Step 254. THM Windows/AD Intro Rooms (18 Cumulative) — Meeting the Protagonist of Corporate Environments

Step 254. THM Windows/AD Intro Rooms (18 Cumulative) — Meeting the Protagonist of Corporate Environments Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time: 4 hours…
읽기 →
Step 255. Hack The Box Starting Point Complete Run — Up to a Stage One Level Higher

Step 255. Hack The Box Starting Point Complete Run — Up to a Stage One Level Higher Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time:…
읽기 →
Step 256. HTB Easy ×2 — Alone to root: The First Complete Run Without Guidance

Step 256. HTB Easy ×2 — Alone to root: The First Complete Run Without Guidance Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 8 hours+…
읽기 →
Step 257. HTB Easy x2 (Cumulative 4) — Widening Your Repertoire of Entry Points

Step 257. HTB Easy x2 (Cumulative 4) — Widening Your Repertoire of Entry Points Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 8+ hours (about…
읽기 →
Step 258. HTB Easy x2 (Cumulative 6) — Time-Limit Training: Solving with the Clock On

Step 258. HTB Easy x2 (Cumulative 6) — Time-Limit Training: Solving with the Clock On Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 12+ hours…
읽기 →
Step 259. Linux Privilege Escalation, Fully Conquered — From Patterns to a Checklist

Step 259. Linux Privilege Escalation, Fully Conquered — From Patterns to a Checklist Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 4 hours Prerequisites: Step…
읽기 →
Step 260. Windows Privilege Escalation, Fully Conquered — Doors of Services, Tokens, and Settings

Step 260. Windows Privilege Escalation, Fully Conquered — Doors of Services, Tokens, and Settings Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 4 hours Prerequisites:…
읽기 →
Step 261. Active Directory 1 — Understanding Domain Structure

Step 261. Active Directory 1 — Understanding Domain Structure Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time: 3 hours Prerequisites: Step 260’s Windows privilege escalation…
읽기 →
Step 262. Active Directory 2 — Kerberoasting and AS-REP Roasting

Step 262. Active Directory 2 — Kerberoasting and AS-REP Roasting Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 4 hours Prerequisites: You understand Step 261’s…
읽기 →
Step 263. Active Directory 3 — Pass-the-Hash and BloodHound

Step 263. Active Directory 3 — Pass-the-Hash and BloodHound Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 4 hours Prerequisites: Step 261’s domain structure and…
읽기 →
Step 264. Pivoting, Deepened — Through the Compromised Machine into the Internal Network

Step 264. Pivoting, Deepened — Through the Compromised Machine into the Internal Network Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 4 hours Prerequisites: Step…
읽기 →
Step 265. One HTB Medium Machine — Solve It Independently, Even If It Takes Days

Step 265. One HTB Medium Machine — Solve It Independently, Even If It Takes Days Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★★ | Estimated time: 3 days…
읽기 →
Step 266. Medium Review + Re-Attack — How to Learn After Solving

Step 266. Medium Review + Re-Attack — How to Learn After Solving Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time: 4 hours Prerequisites: Step 265…
읽기 →
Step 267. One HTB Medium Machine (Cumulative 2) — Read the Starring Service, Turn Stuck Points into Statistics

Step 267. One HTB Medium Machine (Cumulative 2) — Read the Starring Service, Turn Stuck Points into Statistics Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated…
읽기 →
Step 268. One HTB Medium Machine (Cumulative 3) — The Depth of Enumeration

Step 268. One HTB Medium Machine (Cumulative 3) — The Depth of Enumeration Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 2 days (2–3 hours…
읽기 →
Step 269. One HTB Medium Machine (Cumulative 4) — Vulnerability Chaining

Step 269. One HTB Medium Machine (Cumulative 4) — Vulnerability Chaining Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 1–2 days Prerequisites: you’ve rooted 6…
읽기 →
Step 270. One HTB Medium Machine (Cumulative 5) + Medium Graduation Review

Step 270. One HTB Medium Machine (Cumulative 5) + Medium Graduation Review Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 1–2 days Prerequisites: you’ve rooted…
읽기 →
Step 271. One HTB AD-Track Machine — The Standard Route to Domain Takeover

Step 271. One HTB AD-Track Machine — The Standard Route to Domain Takeover Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 1–2 days Prerequisites: Step…
읽기 →
Step 272. Completing Your Own Pentest Playbook — Taking a Photo of Your Current Skill

Step 272. Completing Your Own Pentest Playbook — Taking a Photo of Your Current Skill Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time: 3–4 hours…
읽기 →
Step 273. HTB Hard Challenge 1 — Enumerate Deeper, Test Hypotheses

Step 273. HTB Hard Challenge 1 — Enumerate Deeper, Test Hypotheses Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★★ | Estimated time: 1 week (timeboxed) Prerequisites: Step 270…
읽기 →
Step 274. HTB Hard Challenge 2 — Repaying Technical Debt: Turn What You Don’t Know into a List and Pay It Off

Step 274. HTB Hard Challenge 2 — Repaying Technical Debt: Turn What You Don’t Know into a List and Pay It Off Level 3 — Real-World CTF & Advanced Offensive Skills |…
읽기 →
Step 275. HTB Hard Debrief — Analyzing Top Players’ Write-ups: Read the Reasoning, Not the Results

Step 275. HTB Hard Debrief — Analyzing Top Players’ Write-ups: Read the Reasoning, Not the Results Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 2…
읽기 →
Step 276. Speed Training: Easy in Under 4 Hours — Push Your Routine to Autopilot

Step 276. Speed Training: Easy in Under 4 Hours — Push Your Routine to Autopilot Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time: 1 day…
읽기 →
Step 277. Speed Training: Medium in Under 8 Hours — Stamina and Pace Allocation for the Long Game

Step 277. Speed Training: Medium in Under 8 Hours — Stamina and Pace Allocation for the Long Game Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated…
읽기 →
Step 278. ★ Real-World Check: Medium Time Attack + Presentation Practice — Solving and Explaining Are Different Muscles

Step 278. ★ Real-World Check: Medium Time Attack + Presentation Practice — Solving and Explaining Are Different Muscles Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★★ | Estimated…
읽기 →
Step 279. ★ CTF Competition #1: Full Weekend Participation — The Goal of Your First Competition Is Finishing, Not Ranking

Step 279. ★ CTF Competition #1: Full Weekend Participation — The Goal of Your First Competition Is Finishing, Not Ranking Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆…
읽기 →
Step 280. CTF Debrief Block A: Digging Three Unsolved Problems to the Bottom — Skill Grows in the Debrief, Not the Competition

Step 280. CTF Debrief Block A: Digging Three Unsolved Problems to the Bottom — Skill Grows in the Debrief, Not the Competition Level 3 — Real-World CTF & Advanced Offensive Skills |…
읽기 →
Step 281. ★ CTF #2: This Time as a Team — The Day You Learn the Efficiency of Division and the Cost of Communication at Once

Step 281. ★ CTF #2: This Time as a Team — The Day You Learn the Efficiency of Division and the Cost of Communication at Once Level 3 — Real-World CTF &…
읽기 →
Step 282. CTF Debrief Blocks A + B: Writing Three Write-ups — A Reproducible Write-up Is Proof of Skill

Step 282. CTF Debrief Blocks A + B: Writing Three Write-ups — A Reproducible Write-up Is Proof of Skill Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ |…
읽기 →
Step 283. ★ CTF #3: Team Debut + Goal Setting — Only Measurable Goals Grow a Team

Step 283. ★ CTF #3: Team Debut + Goal Setting — Only Measurable Goals Grow a Team Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time:…
읽기 →
Step 284. CTF Debrief Block A + Team Meeting: Weakness Analysis — Drawing the Team’s Map with Data, Not Gut

Step 284. CTF Debrief Block A + Team Meeting: Weakness Analysis — Drawing the Team’s Map with Data, Not Gut Level 3 — The CTF Competition Cycle | Difficulty ★★☆☆☆ | Estimated…
읽기 →
Step 285. ★ CTF #4: The Weakness-Field Assault Competition — The Courage to Set Your Strengths Down for a While

Step 285. ★ CTF #4: The Weakness-Field Assault Competition — The Courage to Set Your Strengths Down for a While Level 3 — The CTF Competition Cycle | Difficulty ★★★★☆ | Estimated…
읽기 →
Step 286. CTF Debrief Block B: Reaching 30 Accumulated Write-ups — Records Grow by Compound Interest

Step 286. CTF Debrief Block B: Reaching 30 Accumulated Write-ups — Records Grow by Compound Interest Level 3 — The CTF Competition Cycle | Difficulty ★★☆☆☆ | Estimated time: 2 days (writing…
읽기 →
Step 287. ★ CTF #5: The Main-Field Depth Confirmation Match — A Competition That Measures Where Our Ceiling Is

Step 287. ★ CTF #5: The Main-Field Depth Confirmation Match — A Competition That Measures Where Our Ceiling Is Level 3 — The CTF Competition Cycle | Difficulty ★★★★☆ | Estimated time:…
읽기 →
Step 288. CTF Debrief Block A + Focused Weakness Work: A 10-Problem Boot Camp on the Type You Keep Missing — Chronic Ills Are Cut by Concentrated Repetition

Step 288. CTF Debrief Block A + Focused Weakness Work: A 10-Problem Boot Camp on the Type You Keep Missing — Chronic Ills Are Cut by Concentrated Repetition Level 3 — The…
읽기 →
Step 289. ★ CTF #6: The Midterm Evaluation Competition — Aiming for the Top 50%, the Team That Reads the Scoring Structure Harvests the Points

Step 289. ★ CTF #6: The Midterm Evaluation Competition — Aiming for the Top 50%, the Team That Reads the Scoring Structure Harvests the Points Level 3 — The CTF Competition Cycle…
읽기 →
Step 290. CTF Debrief Blocks A + C: Tidying Exploit Code — Turning Improvisation into Assets

Step 290. CTF Debrief Blocks A + C: Tidying Exploit Code — Turning Improvisation into Assets Level 3 — The CTF Competition Cycle | Difficulty ★★★☆☆ | Estimated time: 2 days (half…
읽기 →
Step 291. ★ CTF #7: Live-Fire Library Validation — An Asset’s Value Is Proven Only at a Competition

Step 291. ★ CTF #7: Live-Fire Library Validation — An Asset’s Value Is Proven Only at a Competition Level 3 — The CTF Competition Cycle | Difficulty ★★★☆☆ | Estimated time: 2…
읽기 →
Step 292. CTF Debrief Blocks A + B: 40 Write-ups Accumulated — Writing That Gets Read Is Proof of Skill

Step 292. CTF Debrief Blocks A + B: 40 Write-ups Accumulated — Writing That Gets Read Is Proof of Skill Level 3 — The CTF Competition Cycle | Difficulty ★★☆☆☆ | Estimated…
읽기 →
Step 293. ★ CTF #8: The Team Tactics Experiment — Role Rotation, Trading Points for a Map of the Team

Step 293. ★ CTF #8: The Team Tactics Experiment — Role Rotation, Trading Points for a Map of the Team Level 3 — The CTF Competition Cycle | Difficulty ★★★☆☆ | Estimated…
읽기 →
Step 294. CTF Debrief Block A + 50 Write-ups + Blog Tidy-Up — The Moment Records Become a Career

Step 294. CTF Debrief Block A + 50 Write-ups + Blog Tidy-Up — The Moment Records Become a Career Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ |…
읽기 →
Step 295. ★ CTF #9: The Top-30% Goal Competition — A Testing Ground for Measuring Your Weight Class

Step 295. ★ CTF #9: The Top-30% Goal Competition — A Testing Ground for Measuring Your Weight Class Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated…
읽기 →
Step 296. CTF Debrief Block A + Team Strategy Checkup: Operations Improvement — Reducing Friction, Not Just Tech, Is Also Points

Step 296. CTF Debrief Block A + Team Strategy Checkup: Operations Improvement — Reducing Friction, Not Just Tech, Is Also Points Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty…
읽기 →
Step 297. ★ CTF #10: 10th Competition Special — The Full Retrospective — Growth Is Not Linear, It Is a Cycle of Plateaus and Leaps

Step 297. ★ CTF #10: 10th Competition Special — The Full Retrospective — Growth Is Not Linear, It Is a Cycle of Plateaus and Leaps Level 3 — Real-World CTF & Advanced…
읽기 →
Step 298. Preparing for Domestic Qualifiers: Solving CODEGATE/CCE Past Exams — Past Exams Are the Best Textbook

Step 298. Preparing for Domestic Qualifiers: Solving CODEGATE/CCE Past Exams — Past Exams Are the Best Textbook Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆ | Estimated time:…
읽기 →
Step 299. Qualifier Speed Training: 10-Problem Time Attack — The Technique of a Pace That Sweeps Easy Problems First

Step 299. Qualifier Speed Training: 10-Problem Time Attack — The Technique of a Pace That Sweeps Easy Problems First Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ |…
읽기 →
Step 300. ★ CTF #11: Qualifier Dress Rehearsal — A Rehearsal Validated at 80% Power

Step 300. ★ CTF #11: Qualifier Dress Rehearsal — A Rehearsal Validated at 80% Power Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★☆ | Estimated time: 2 days…
읽기 →
Step 301. CTF Debrief Blocks A + B: The Final Reinforcement — Sealing the Leaks and Building the Battle Pack

Step 301. CTF Debrief Blocks A + B: The Final Reinforcement — Sealing the Leaks and Building the Battle Pack Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★☆☆…
읽기 →
Step 302. ★ CTF #12: The Goal-Attainment Competition — Top 30%, Season Finale

Step 302. ★ CTF #12: The Goal-Attainment Competition — Top 30%, Season Finale Level 3 — Real-World CTF & Advanced Offensive Skills | Difficulty ★★★★★ | Estimated time: 2 days (competition participation…
읽기 →
Step 303. ★ Level 3 Comprehensive Evaluation: Score Analysis of the Last 3 Competitions + Level 4 Plan — Close with Data, Open with Design

Step 303. ★ Level 3 Comprehensive Evaluation: Score Analysis of the Last 3 Competitions + Level 4 Plan — Close with Data, Open with Design Level 3 — Real-World CTF & Advanced…
읽기 →