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suhelkathi/README.md
Suhel Kathi — Offensive Security · OSCP · CEH
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LinkedIn Medium Email Blackbox Scope Finalizer

Text version — searchable content
Suhel Kathi typing
OSCP CEH CRTOM CCEP APIsec ACP

LinkedIn Medium Email views

Offensive security consultant breaking web apps, APIs, mobile, networks and cloud for a living — then writing the report that gets it fixed, building the tooling that speeds it up, and training the people who do it next. OSCP · CEH

$ scope --list
[+] web-app .......... exploited
[+] api .............. authz broken
[+] android .......... bypassed
[+] aws · azure · m365  cis gaps
[+] ext / int network   pivoted
$ report --exec-summary
[✓] risk reduced. shipped.

$ whoami

discipline: offensive security · VAPT · appsec · cloud security
breaks:     web apps · APIs · Android · external & internal networks · AWS · Azure · M365
depth:      authn/authz bypass · business-logic abuse · SSRF & RCE chains · privilege escalation
programs:   SAST & DAST · attack surface management · threat intel · phishing simulation
dast:       hands-on scanning; supported the Invicti PoC and onboarding, now enabling the team
teaches:    web · API · Android · cloud · AI/LLM — live labs, real tooling, report writing
writes:     https://suhelkathi.medium.com/
motto:      find it before someone else does.

$ cat arsenal

OFFENSIVE TESTING

Web App API — OWASP API Top 10 2023 Android External Network Internal Network SAST & DAST (hands-on) Black / Grey-Box Business Logic Abuse Authn / Authz Bypass SSRF · RCE Chains Privilege Escalation Secure Design Review

THREAT INTELLIGENCE

Attack Surface Management Digital Footprint Intel Subdomain Enumeration Compromised Credential Monitoring Domain Monitoring Phishing Simulation CTI Escalation → IR

CLOUD & INFRA

AWS Review Azure Review M365 / O365 Review CIS Benchmarks Firewall Rules Linux/Unix

BUILT WITH AI

SUHEL AGENT CORSweep HostSweep Blackbox Scope Finalizer

Offline, zero-cost recon and triage agent for black-box web assessment.

Burp Suite Invicti Nessus Nuclei Nmap sqlmap MobSF Frida Metasploit Wireshark ZAP Postman Kali Python Bash

Frameworks & standards — OWASP Top 10 (Web & API 2023) · PTES · OSSTMM · CIS Benchmarks


$ proficiency --self

▸ Web application penetration testing
▸ API security testing — OWASP API Top 10 2023
▸ Mobile (Android) application penetration testing
▸ External network penetration testing
▸ Internal network penetration testing
▸ Cloud security review — AWS · Azure · M365/O365 · CIS Benchmarks
▸ Hands-on SAST & DAST — supported Invicti PoC, onboarding and team enablement
▸ Threat intelligence, attack surface management & CTI escalation
▸ Firewall & secure configuration review
▸ Security automation and AI-assisted tooling
▸ VAPT & cloud security training delivery

$ ls certifications/

Major Specialised
OSCP — Offensive Security Certified Professional ACP — APIsec Certified Practitioner
CEH — Certified Ethical Hacker CASA — Certified API Security Analyst
CRTOM — Certified Red Team Operations Management Proofpoint Certified Email Authentication Specialist (2025)
CCEP — Certified Cybersecurity Educator Professional

$ training --deliver

Cybersecurity Trainer & VAPT Mentor

I teach practical offensive security across Web, API, Android, Cloud and AI/LLM security — with hands-on labs, real-world tooling, vulnerability assessment, exploitation techniques, and professional report writing.

The focus is on building practical skills that translate directly into real-world VAPT engagements and cybersecurity roles.

AWS Cloud Security Training · Instructor

I teach practical AWS Cloud Security through hands-on labs — covering IAM, network security, S3, API security, monitoring, threat detection, and secure architecture using real AWS environments.

The focus is on learning how to audit, identify misconfigurations, assess security gaps, and harden AWS environments — not just understand cloud security concepts theoretically.

Certified Cybersecurity Educator Professional (CCEP)


$ cat writeups/

ACTIVE DIRECTORY SERIES · 7 PARTS
Ground-up AD security, from architecture to the full attacker journey.
  • From Foothold to Domain Admin — The Real Attacker Journey Inside Active Directory
  • How Attackers See Active Directory — Internal vs External Threat Perspectives
  • How Authentication Works in AD — Kerberos, NTLM & Real Attack Paths
  • Group Policy Objects (GPOs) — The Rulebook of Active Directory
  • Active Directory Ports & Protocols — The Real Lifelines
  • Understanding AD Architecture — Explained with Mumbai Local Trains
  • Active Directory (AD) Basics
OWASP API TOP 10 2023 · COMPLETE SERIES
Every API risk category, one post each — with real attack paths, not definitions.
  • API01 — Broken Object Level Authorization (BOLA)
  • API02 — Broken Authentication
  • API03 — Broken Object Property Level Authorization
  • API04 — Unrestricted Resource Consumption
  • API05 — Broken Function Level Authorization
  • API06 — Unrestricted Access to Sensitive Business Flows
  • API07 — Server-Side Request Forgery (SSRF)
  • API08 — Security Misconfiguration
  • API09 — Improper Inventory Management
  • API10 — Unsafe Consumption of APIs
  • Beyond the Top 10 — Injection, Logging Gaps & Business Logic Flaws
WEB & APPLICATION SECURITY
Supply-chain and infrastructure-level flaws that slip past standard checklists.
  • Dependency Confusion — When Package Managers Become an Attacker's Silent Backdoor
  • Web Cache — The Hidden Speed Booster That Can Become a Security Risk
LAB WALKTHROUGHS
Step-by-step exploitation writeups across VulnHub, CyberDefenders and deliberately vulnerable apps.
  • VulnHub — JANGOW 1.0.1, Pwned 1, Mr Robot, The Planets: Earth
  • CyberDefenders — blue-team lab reports
  • InsecureBankv2 — Android application walkthrough
  • zero.webappsecurity.com · testphp.vulnweb.com · hackyourselffirst.troyhunt.com

Read them all → suhelkathi.medium.com


$ stats --impact

4+ yrs
offensive security
Zero
high-sev findings reaching production
4 tools
built & shipped for the team
30+
technical writeups published
2 programs
VAPT & AWS security training delivered
5 surfaces
web · API · Android · network · cloud

$ ls tooling/ · built with AI

🛡️ SUHEL AGENT — AI-Assisted Black-Box Web Assessment

Offline, zero-cost recon and triage agent that automates the repetitive first pass of a black-box web assessment — while keeping a human in the loop before any offensive action fires.

  • Runs a full recon-to-active-scan pipeline (subdomain enumeration, port scanning, crawling, content discovery, OWASP ZAP active scanning) across 13 integrated open-source tools
  • An AI layer classifies each discovered endpoint and proposes relevant follow-up tests — approved by the tester before anything runs
  • A deterministic findings engine ranks every result by real evidence, so nothing critical gets silently dropped or downgraded by the AI layer
  • Outputs a CISO-ready Excel report: severity, evidence, impact, recommendation, PoC steps and an AI-suggested verdict — with a final column for the tester's own confirmation

Why it's built this way: the AI assists — it decides what to test and helps triage results — but it never autonomously exploits. Detection stays evidence-based and deterministic; judgment stays human.

Python Ollama (local LLM) MariaDB OWASP ZAP subfinder · httpx · naabu · katana · nuclei sqlmap dalfox

Built on the open-source METATRON project (MIT) as a base CLI/LLM shell — the recon integration, verification layer, escalation engine, deterministic findings ranking, agent triage and reporting are original work on top of it.

🎯 Blackbox Scope Finalizer — Quarterly Scope Automation

Point it at a list of root domains and it hands back a clean, verified black-box scope — ready to hand off. Fully deterministic, no AI involved: this is data processing, not judgment, so it should be boringly reliable every time.

  • Enumerates every subdomain across a list of root domains
  • Probes each one for live status with the full redirect chain (301 → 200) and resolved IP — not just a final code
  • Cross-matches against known-covered and decoy lists, so scope stays clean of anything already tested elsewhere or intentionally out of bounds
  • Deduplicates www. vs. bare domains only after checking which one actually works, so a live subdomain is never dropped for a dead duplicate
  • Three-sheet Excel output: full audit trail, final filtered scope, and a summary

Python subfinder httpx openpyxl

🔗 github.com/suhelkathi/Blackbox_Scope_finalizer

🌐 CORSweep — High-Signal CORS Misconfiguration Scanner

Detects Cross-Origin Resource Sharing misconfigurations using confirmation-based logic that keeps false positives near zero. Rather than flagging every permissive header, it reports a finding only when the server provably reflects an attacker-controlled origin, and scores severity by whether credentials are actually in play — so a critical finding genuinely means cross-origin theft of authenticated data.

Python

🧭 HostSweep — Confirmation-Based Host Header Injection Scanner

Tests whether an application trusts client-supplied host information and reflects it into a security-relevant location. A two-pass canary technique — one triage request across all candidate headers, then isolated confirmation of each hit — extracts the exact reflected value to classify whether the attacker still controls the resulting host, cleanly separating exploitable reflections from harmless ones.

Python


$ contact --suhel

Open to offensive security engagements, red team collaboration, API security research and training.

LinkedIn Medium Email

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