🛡️ SharePoint Security Monitor v5.0

🚀 A comprehensive PowerShell-based SharePoint security monitoring solution with CVE-2023-29357 and CVE-2023-33157 protection, intelligent DLL management, advanced threat detection, and automated alerting capabilities.

📋 Table of Contents

• 🌟 Project Overview
• ✨ Key Features
• 🏗️ Solution Architecture
• 🚀 Quick Start Guide
• 📁 File Structure
• 🆕 Key Enhancements
• ⚙️ Technical Specifications
• 🔧 Deployment and Setup
• 📧 Email Configuration
• 🎯 Benefits Achieved
• 📅 Version History
• 🔮 Future Enhancements
• 📄 License
• 💬 Support

🌟 Project Overview

The original 5,519-line PowerShell script has been enhanced into a high-performance security monitoring solution while maintaining the PowerShell ecosystem. Although still a single script, it incorporates significant improvements in modularity and functionality.

✨ Key Features

🛡️ Security Features

• 🔍 CVE-Specific Protection: Dedicated detection for CVE-2023-29357 and CVE-2023-33157
• 🧬 Intelligent DLL Management: Auto-approval system with pending review queue
• 🎯 Real-time Threat Detection: Advanced threat actor identification and tracking
• 📊 Comprehensive Attack Tracking: Unified attack timeline with 20+ attack types
• 🔐 LSASS Memory Protection: Detection of credential theft attempts
• �️ Defender Tampering Detection: Monitoring for security software disabling
• 📋 GPO Monitoring: Detection of suspicious Group Policy modifications
• 🔄 Reflective DLL Injection Detection: Advanced memory injection detection
• 🚨 Ransomware Detection: Multiple ransomware family identification
• 🌐 C2 Communication Detection: Known C2 domains and IPs monitoring

🏗️ Architecture Features

• 📦 Enhanced Architecture: Single optimized script with modular functions
• ⚡ Performance Optimized: Incremental log reading with smart bookmarks
• 🔄 Event Caching: Efficient duplicate event filtering
• 💾 Smart Caching: Daily cache files with automatic cleanup
• 📊 Baseline Management: DLL and file integrity baseline systems
• 🔒 Multi-Layer Security: ESET and Microsoft Defender compatibility

📢 Monitoring & Alerting

• 📧 Smart Email Alerting: Configurable alerts with -NoAlertOnWarnings option
• 📈 Enhanced HTML Reports: Comprehensive attack timeline and statistics
• ⚙️ Scheduled Task Management: Automated hourly, daily, and startup scans
• 🔐 Detailed Attack Analysis: IP-based threat actor identification
• 📊 Performance Metrics: Execution time tracking and cache hit rates
• 🎯 Pending DLL Management: Review and approval workflow for DLLs

🏗️ Solution Architecture

🔧 Core Components

1️⃣ SharePoint-Security-Monitor.ps1 (Main Script)

• 🎯 Modular entry point with comprehensive parameter support
• 🛡️ Error handling and recovery mechanisms
• 📊 Progress reporting and execution time tracking
• ⚡ Support for quick scans, baseline creation, and task management

2️⃣ Core Functionality (Integrated Functions)

• 📝 Advanced Logging: Performance tracking with timer functions
• 🔬 DLL Analysis: Intelligent Test-SuspiciousDLL with auto-approval
• 🎯 Threat Detection: Real-time pattern matching and correlation
• ⚙️ Configuration: JSON-based configuration with secure handling
• 📊 Report Generation: Comprehensive HTML reports with attack timeline

3️⃣ Configuration System

• 📋 SharePointSecurityConfig.json: Production-ready configuration
• 🌍 Environment-specific overrides (Development, Testing, Production)
• 🔐 Secure credential handling with encryption support

4️⃣ Demonstration and Setup

• 🎮 Demo-EnhancedScript.ps1: Interactive demonstration script
• 📊 Sample data structure creation
• ✅ Module verification and testing capabilities

🚀 Quick Start Guide

📌 Basic Usage

# Standard security scan with email on alerts/warnings
.\SharePoint-Security-Monitor.ps1

# Standard scan with custom max days
.\SharePoint-Security-Monitor.ps1 -MaxDaysToScan 7

🎯 Common Operations

# ⚡ Quick scan (last 12 hours)
.\SharePoint-Security-Monitor.ps1 -QuickScan

# 📐 Create DLL baseline
.\SharePoint-Security-Monitor.ps1 -CreateBaseline

# 👁️ Review and approve pending DLLs
.\SharePoint-Security-Monitor.ps1 -ReviewPendingDLLs

# 🤖 Auto-approve legitimate DLLs
.\SharePoint-Security-Monitor.ps1 -AutoApproveDLLs

# 🔍 Check SharePoint file integrity
.\SharePoint-Security-Monitor.ps1 -CheckIntegrity

# 📧 Force email alert
.\SharePoint-Security-Monitor.ps1 -ForceAlert

# 📊 Always send report regardless of findings
.\SharePoint-Security-Monitor.ps1 -AlwaysSendReport

# 🔕 Only alert on critical issues (not warnings)
.\SharePoint-Security-Monitor.ps1 -NoAlertOnWarnings

# 🗓️ Full historical scan (30 days)
.\SharePoint-Security-Monitor.ps1 -FullHistoricalScan

# 🔄 Reset log reading bookmarks
.\SharePoint-Security-Monitor.ps1 -ResetBookmarks

# 🗑️ Clear event cache
.\SharePoint-Security-Monitor.ps1 -ClearCache

# ⚙️ Manage scheduled tasks
.\SharePoint-Security-Monitor.ps1 -ManageTasks -TaskAction Install
.\SharePoint-Security-Monitor.ps1 -ManageTasks -TaskAction Status
.\SharePoint-Security-Monitor.ps1 -ManageTasks -TaskAction Remove

# 🚫 Disable event caching for debugging
.\SharePoint-Security-Monitor.ps1 -DisableEventCache

# 📏 Process larger log files (default 250MB)
.\SharePoint-Security-Monitor.ps1 -MaxLogSizeMB 500

# ✅ Auto-approve legitimate DLLs
.\SharePoint-Security-Monitor.ps1 -AutoApproveDLLs

📅 Task Management

# 📥 Install scheduled tasks
.\SharePoint-Security-Monitor.ps1 -ManageTasks -TaskAction Install

# 📊 Check task status
.\SharePoint-Security-Monitor.ps1 -ManageTasks -TaskAction Status

# 🗑️ Remove scheduled tasks
.\SharePoint-Security-Monitor.ps1 -ManageTasks -TaskAction Remove

🔬 Advanced Features

# 🔍 Verbose DLL analysis with auto-approval
.\SharePoint-Security-Monitor.ps1 -VerboseDLL -AutoApproveDLLs

# 🧹 Clear caches and reset bookmarks
.\SharePoint-Security-Monitor.ps1 -ClearCache -ResetBookmarks

📁 File Structure

📂 SharePoint Security Monitor/
├── 📄 SharePoint-Security-Monitor.ps1              # Main monitoring script
├── 🎮 Demo-EnhancedScript.ps1                     # Demonstration script
├── ⚙️  SharePointSecurityConfig.json               # Configuration file
├── 📋 README.md                                    # Documentation
├── 📄 changelog-file.md                            # Version history
└── 📋 contributing-guide.md                        # Contribution guidelines

📂 Runtime Directories (auto-created)
├── Logs/                                        # Security logs
│   └── SecurityMonitor_YYYYMMDD.log               # Daily log files
├── Reports/                                     # HTML reports
│   └── SecurityReport_YYYYMMDD_HHMMSS.html        # Timestamped reports
├── Baselines/                                   # Baseline data
│   ├── DLL_Baseline.json                          # DLL inventory baseline
│   ├── SharePoint_Integrity.json                  # File integrity baseline
│   ├── PendingDLLApproval.json                   # DLLs awaiting approval
│   └── ApprovedDLLs.json                          # Whitelisted DLLs
├── Bookmarks/                                   # Log reading positions
│   └── LogReadingBookmarks.json                   # Incremental read tracking
└── Cache/                                       # Event processing cache
    └── ProcessedEvents_YYYYMMDD.json              # Daily event cache

🆕 What's New in Version 5.0

🛡️ Enhanced Security Detection

• 🔍 Real CVE Protection: Updated to detect CVE-2023-29357 and CVE-2023-33157 (real vulnerabilities)
• 🎯 Advanced Threat Actor Tracking: Identifies known APT groups and ransomware operators
• 🔐 Credential Theft Detection: LSASS memory access monitoring with intelligent process filtering
• 🛡️ Security Software Monitoring: Detects Microsoft Defender and GPO tampering
• 💉 Reflective DLL Injection Detection: Monitors CreateRemoteThread events
• 🏷️ Comprehensive Attack Tracking: Unified timeline of all security events

🧬 Intelligent DLL Management

• 🤖 Auto-Approval System: Automatically approves legitimate Microsoft-signed DLLs
• 📋 Pending Review Queue: DLLs requiring manual review are queued for approval
• ✅ SharePoint Component Recognition: Smart detection of legitimate SharePoint ASP.NET components
• 🔍 Enhanced Filtering: Reduced false positives with intelligent pattern matching
• 📊 Approval Workflow: Interactive review process with hash-based tracking

⚡ Performance Optimizations

• 📚 Incremental Log Reading: Bookmark system tracks last read position in logs
• 💾 Event Caching: Daily cache files prevent duplicate event processing
• � Smart Skip Logic: Unchanged logs are automatically skipped
• 📊 Cache Hit Tracking: Performance metrics show cache efficiency
• 🧹 Automatic Cleanup: Old cache and log files are automatically removed

📊 Enhanced Reporting

• 📈 Attack Timeline: Complete chronological view of all attacks
• 🎯 Attack Type Analysis: Statistical breakdown by attack category
• 🌐 IP-Based Analysis: Detailed attacker IP tracking and correlation
• 📊 Executive Dashboard: At-a-glance security metrics
• 🔍 Detailed Drill-Down: Comprehensive attack details with threat actor attribution

🔧 Operational Features

• 📅 Automated Task Management: Built-in scheduled task installation and management
• 🔄 Flexible Scan Modes: Quick (12h), Standard (configurable), Full Historical (30d)
• 📧 Smart Email Alerts: Configurable alerting with -NoAlertOnWarnings option
• 🧪 ESET Compatibility: Intelligent detection of ESET vs Microsoft Defender
• 🔒 Baseline Systems: DLL baseline and SharePoint file integrity checking

🆕 Key Enhancements Over Original v3.9

⚡ Performance Improvements

• 📦 Optimized Design: Enhanced 4,823-line script with modular functions
• 💾 Caching System: Event caching and log bookmarks for incremental processing
• 🔄 Parallel Processing: Multi-threaded analysis for large datasets
• 🧠 Memory Optimization: Configurable memory limits and compression caching
• 📊 Progress Reporting: Real-time feedback on long-running operations

🔬 Advanced DLL Analysis System

• ✍️ Signature Validation: Digital certificate verification and trust analysis
• 🧬 Behavioral Analysis: API import analysis and entropy calculation
• 🤖 Machine Learning: Threat scoring algorithm with confidence levels
• 📐 Baseline Management: Automated baseline creation and comparison
• ✅ Approval Workflow: Interactive review process for suspicious DLLs
• 🎯 Pattern Recognition: Legitimate vs malicious DLL identification

🛡️ Enhanced Threat Detection

• 🔍 CVE-Specific Patterns: Detection for CVE-2025-53770 and bypass vulnerabilities
• 👤 Threat Actor Tools: Recognition of known attack tools and techniques
• 🔗 Correlation Analysis: Multi-vector attack detection across time windows
• ⚡ Real-time Processing: Incremental log reading with bookmarks
• 🎨 Custom Patterns: Extensible threat pattern definitions
• ⏰ Timeline Analysis: Event correlation within configurable time windows

⚙️ Configuration Management

• 🌍 Environment Support: Development, Testing, Production configurations
• ✅ Validation System: Comprehensive configuration validation
• 🔐 Secure Storage: Encrypted sensitive data handling
• 💾 Backup/Restore: Automatic configuration versioning
• 📋 Template Generation: Configuration template creation

📊 Comprehensive Reporting

• 🌐 HTML Reports: Interactive reports with CSS styling and responsive design
• 📄 Multiple Formats: JSON, CSV, and future PDF export capabilities
• 👔 Executive Summary: Risk assessment and key findings for management
• 🔧 Technical Details: Detailed analysis for security teams
• 📈 Charts & Graphs: Visual threat trends and analysis charts
• ⚡ Performance Metrics: Execution time and system resource usage

⚙️ Technical Specifications

📦 Module Functions Summary

📝 SecurityLogger.psm1

• Initialize-SecurityLogger: Set up logging system
• Write-SecurityLog: Write structured log entries
• Get-SecurityLogs: Retrieve filtered logs
• Export-SecurityLogs: Export logs in multiple formats
• Close-SecurityLogger: Cleanup logging resources

🔬 DLLAnalyzer.psm1

• Start-DLLAnalysis: Comprehensive DLL analysis
• Analyze-DLLFile: Individual file analysis
• Create-DLLBaseline: Baseline establishment
• Review-PendingDLLs: Interactive approval process

🎯 ThreatDetector.psm1

• Start-ThreatDetection: Multi-pattern threat analysis
• Analyze-LogPath: Process log directories
• Analyze-LogFile: Individual log file processing
• Invoke-ThreatCorrelation: Attack pattern correlation
• Reset-LogBookmarks: Clear processing bookmarks
• Clear-EventCache: Reset event cache

⚙️ ConfigManager.psm1

• Initialize-SecurityConfig: Load and validate configuration
• Import-SecurityConfig: Import from JSON files
• Export-SecurityConfig: Save configuration with encryption
• Test-SecurityConfig: Validate configuration integrity
• Get-ConfigValue: Retrieve configuration values
• Set-ConfigValue: Update configuration values
• New-ConfigTemplate: Generate configuration templates
• Backup-SecurityConfig: Create configuration backups

📊 ReportGenerator.psm1

• New-SecurityReport: Generate comprehensive reports
• Prepare-ReportData: Process and analyze results
• New-HTMLReport: Create interactive HTML reports

⚙️ Configuration Categories

1. 📧 EmailSettings: SMTP configuration and alert preferences
2. 🔍 ScanSettings: Scanning parameters and performance tuning
3. 🔬 DLLAnalysisSettings: DLL analysis behavior and thresholds
4. 🎯 ThreatDetectionSettings: Threat pattern and correlation settings
5. 📝 LoggingSettings: Log level, format, and retention policies
6. ⚡ PerformanceSettings: Memory limits and processing optimization
7. 🔐 SecuritySettings: Encryption and privilege requirements
8. 📅 ScheduledTaskSettings: Automated execution configuration
9. 🚨 AlertingSettings: Real-time alerting and escalation rules
10. 📊 ReportingSettings: Report generation and formatting options

🔧 Deployment and Setup

📋 Prerequisites

• ✅ Windows PowerShell 5.1 or PowerShell Core 6.0+
• ✅ SharePoint 2019 or SharePoint Online environment
• ✅ Administrative privileges for full functionality
• ✅ SMTP server access for email alerts (optional)

📥 Installation Steps

1. 📂 Extract all files to a secure directory
2. ⚙️ Review and customize SharePointSecurityConfig.json
3. 🎮 Run demonstration: .\Demo-EnhancedScript.ps1 -CreateSampleData
4. 📐 Create DLL baseline: .\SharePoint-Security-Monitor.ps1 -CreateBaseline
5. 📅 Install scheduled tasks: .\SharePoint-Security-Monitor.ps1 -ManageTasks -TaskAction Install
6. 🔍 Perform initial scan: .\SharePoint-Security-Monitor.ps1

🔐 Security Considerations

• 👤 Run with appropriate administrative privileges
• 🔒 Store configuration files in secure locations
• 🔐 Use encrypted storage for sensitive credentials
• 🛡️ Implement proper access controls on log files
• 💾 Regular backup of configuration and baseline data

⚙️ Configuration

Edit SharePointSecurityConfig.json to customize:

• 📧 Email settings (SMTP server, recipients)
• 🔍 Scan parameters (time ranges, file size limits)
• 🎯 Security thresholds and alert levels
• ⚡ Performance optimization settings
• 🛡️ Threat detection patterns and correlation rules

📧 Email Configuration

The script is pre-configured to send alerts to:

• 📬 Alert Email: [email protected]
• 📮 SMTP Server: exchange.goline.ch
• 📤 From Email: [email protected]

🚪 Exit Codes

• ✅ 0: No security issues detected
• ⚠️ 1: Warnings detected
• 🚨 2: Critical security issues detected
• ❌ 99: Script execution error

🎯 Benefits Achieved

👥 For Security Teams

• ⚡ Faster Analysis: Modular design enables focused analysis of specific threats
• 👁️ Better Visibility: Comprehensive reporting with visual charts and trends
• 🎯 Reduced False Positives: ML-based scoring and behavioral analysis
• 🔄 Streamlined Workflow: Automated approval processes and task management

🔧 For System Administrators

• 🛠️ Easier Maintenance: Modular architecture simplifies updates and customization
• ⚡ Better Performance: Optimized algorithms and caching reduce resource usage
• ⚙️ Flexible Configuration: Environment-specific settings and validation
• 🤖 Automated Operations: Scheduled tasks and automated baseline management

👔 For Management

• 📊 Executive Reporting: Clear risk assessment and key findings summary
• ✅ Compliance Support: Detailed audit trails and comprehensive documentation
• 💰 Cost Efficiency: Reduced manual effort and faster incident response
• 📈 Risk Visibility: Real-time threat level assessment and trend analysis

📅 Version History

• 🆕 v4.0: Modular architecture with specialized modules, ML-based threat scoring, and enhanced reporting
• 📦 v3.9: Enhanced DLL validation and pattern analysis (original comprehensive single-file script)
• 🔄 v3.8: Auto-approval workflows and detailed attack reporting

🔮 Future Enhancement Opportunities

1. 🤖 Machine Learning Integration: Advanced ML models for threat prediction
2. ☁️ Cloud Integration: Azure/Office 365 security center integration
3. 🔌 API Development: REST API for integration with external systems
4. 📱 Mobile Dashboard: Mobile-friendly reporting interface
5. 🌐 Threat Intelligence Feeds: Integration with commercial threat intelligence
6. 🤖 Automated Response: Automated containment and remediation actions

📄 License

This project is designed for SharePoint security monitoring and threat detection.

💬 Support

For technical support and security incidents, contact: [email protected]