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ICSH 2026

Cyber Excellence

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ICSH 2026 · CTF Challenge Spectrum

5 Challenges.
5 Categories.
One Leaderboard.

Test your skills across the most critical cybersecurity domains. Compete with global teams, earn points, and claim your rank over 24 continuous hours.

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5 Challenges

Across 5 domains

Team-Based

2 to 3 members

24 Hours

Continuous competition

All Levels

Easy to Hard tracks

Real-World Scenarios,
Engineered to
Challenge You.

Every challenge in ICSH 2026 is carefully crafted to mirror genuine attack vectors encountered by professional security analysts worldwide.

Professionally Authored Challenges

Each challenge is designed by cybersecurity professionals and academic researchers — no generic CTF templates.

Tiered Difficulty Structure

Every category offers Easy, Medium and Hard variants so beginners and experts both have a path to the podium.

Live Scoring & Dynamic Points

Points decrease as more teams solve a challenge. The fastest and most creative solvers gain the highest rewards.

Collaborative Team Play

Form teams of 3–5 with diverse roles — divide challenges strategically and multiply your team's impact.

Five Domains. Infinite Possibilities.

Each domain represents a core discipline of offensive and defensive cybersecurity.

Web Security

Diff
Easy → Hard

Exploit vulnerabilities in modern web applications. Hunt for hidden flags across broken authentication, injection flaws, and misconfigured APIs in simulated real-world environments.

SQL InjectionXSS / CSRFIDORJWT BypassSSRF

Cryptography

Diff
Easy → Medium

Decode ciphers, break encryption schemes, and reverse cryptographic puzzles. From classical substitution ciphers to RSA and hash-based challenges.

Classical CiphersRSA BasicsHash CrackingAES ModesXOR Analysis

Forensics

Diff
Medium → Hard

Investigate corrupted files, network packet captures, disk images, and steganographic artifacts. Every byte tells a story — find the flag hidden within.

PCAP AnalysisSteganographyDisk ForensicsMemory DumpsFile Carving

Reverse Engineering

Diff
Medium → Hard

Analyze compiled binaries, deobfuscate malware samples, and reverse-engineer custom algorithms. No source code — only the binary and your debugger.

Assembly AnalysisGhidra / IDADebuggingAnti-ReversingObfuscation

OSINT / Networking Specialist

Diff
Medium → Hard

Dive deep into digital footprints and network intelligence. This category focuses on uncovering hidden information through OSINT techniques, packet analysis, and network reconnaissance. Trace identities, analyze traffic, and think like a cyber investigator.

OSINTNetwork AnalysisPacket SniffingReconnaissanceCyber Intelligence

Full Challenges Revealed on Event Day

Challenges unlock at 12:00 PM UTC on the competition day. All difficulty tiers unlock simultaneously. Submit flags in ICSH{...} format.

Preparation Resources

CTF 101 Beginner GuideRecommended Tools ListPractice Platforms
Register to Compete

Open to all students · India & Malaysia