🍌 Welcome to Cyber Samurai!
In today’s episode, we break down exactly how hackers think. We are targeting a vulnerable web app (“Srejon’s Banana Shop”) to demonstrate a full kill chain: finding a weakness in the login page, generating a custom wordlist with Python, cracking the username with Hydra, and finally bypassing authentication with SQL Injection.
⚠️ DISCLAIMER: EDUCATIONAL PURPOSES ONLY
This video is created for educational and ethical hacking purposes only. The attacks demonstrated were performed on a locally hosted laboratory environment (localhost) owned by us.
* Do NOT use these techniques on websites you do not own or have permission to test.
* Unauthorized access is illegal and can lead to severe legal consequences.
* The goal of Cyber Samurai is to teach you how to identify vulnerabilities so you can fix them.
🛠️ TOOLS & COMMANDS USED
1. Python Username Generator
We used a custom Python script to generate a wordlist based on the target’s name and role.
* Language: Python 3
* Goal: Create a list of potential usernames (e.g., SrejonAdmin, admin_srejon).
2. Hydra (Network Login Cracker)
We used Hydra to brute-force the login form and identify the valid username.
hydra -L usernames.txt -p test123 127.0.0.1 -s 5000 http-post-form “/login:username=^USER^&password=^PASS^:F=Wrong Username”

* -L : Path to the username list.
* -p : A dummy password (we just want to check the error message).
* http-post-form : Telling Hydra it’s a web form login.
* F=… : The “Failure” string to look for.
3. SQL Injection Payload
Once we had the username, we used this payload to bypass the password check:
SrejonAdmin’) OR ‘1’=’1

(Note: We added the closing bracket ) because the developer wrapped the query in parentheses!)

🛡️ HOW TO SECURE YOUR CODE
* Generic Error Messages: Never say “Wrong Username”. Always use “Invalid Credentials” so hackers can’t guess who is in your system.
* Parameterized Queries: Always use prepared statements (e.g., ? placeholders) in SQL to prevent Injection attacks.

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