Security Tools Portfolio — Secure Computing Systems

This repository contains three Python-based cybersecurity tools developed for the Secure Computing Systems coursework. The project demonstrates secure authentication, threat detection, and malware analysis using command-line security tools implemented in Kali Linux.

Project Summary

Developed three security tools using Python
Implemented secure authentication system
Built SIEM Lite threat detection tool
Created malware analysis and forensic tool
Used secure coding practices
Implemented error handling and safe file traversal
Designed tools for command-line execution

Tools Included

secure_auth.py — Secure Authentication Tool
siem_lite.py — Threat Detection Tool
malware_analyzer.py — Malware Analysis Tool

Secure Authentication Tool Features

16-byte random salt generation
PBKDF2-SHA256 password hashing
Password complexity validation using regex
Minimum 12 characters requirement
At least one number requirement
At least one special character requirement
2-second delay for failed login attempts
Secure credential storage
Exception handling

SIEM Lite Threat Detection Features

Linux log file parsing
Regex-based IP extraction
Dynamic threshold detection using command-line arguments
JSON export of malicious IP addresses
Error handling for missing files
Detection of failed login attempts
Structured output for firewall ingestion

Malware Analysis Tool Features

SHA-256 hashing using chunk-based processing (4096 bytes)
Known malware signature detection
Secure quarantine system
Directory whitelist protection
EXIF metadata extraction
GPS metadata extraction
Safe file traversal using os.walk
Error handling

Project Folder Structure

security_tools_portfolio/

secure_auth.py
siem_lite.py
malware_analyzer.py
logs/
sample_files/
quarantine/
README.md

How to Run Secure Authentication Tool

python3 secure_auth.py



How to Run SIEM Lite Tool
python3 siem_lite.py logs/auth.log 3
How to Run Malware Analyzer
python3 malware_analyzer.py

Enter directory when prompted:

sample_files
Dependencies

Install required library:

pip3 install pillow
Testing

Create test malware file:

echo "test malware file" > sample_files/test.txt

Generate hash:

sha256sum sample_files/test.txt
Security Features Implemented
Secure password storage
Salted hashing
Regex password validation
Brute-force protection
Regex log parsing
Dynamic alert threshold
JSON export
Chunk-based hashing
Quarantine vault
Directory whitelist
EXIF metadata extraction
Safe file traversal

varrir/security_tools_portfolio

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