# Ghost - Implementation TODO This document outlines the missing implementations needed to make Ghost a production-grade process injection detection framework. --- ## 1. eBPF Detection (Linux) **Status:** Stub implementation only **Priority:** HIGH **Effort:** 2-3 weeks ### What's Missing: - Actual eBPF program compilation (BPF bytecode) - Kernel probe attachment for syscalls - Ring buffer event processing - Process tree tracking with real data - Memory map change monitoring ### Implementation Tasks: - [ ] Write eBPF C programs for: - `sys_ptrace` monitoring - `sys_process_vm_writev` interception - `mmap`/`mprotect` tracking - Thread creation hooks - [ ] Use `libbpf-rs` or `aya` for Rust eBPF integration - [ ] Implement real ring buffer parsing - [ ] Add CO-RE (Compile Once, Run Everywhere) support - [ ] Create detection rules based on syscall patterns ### Files to Modify: - `ghost-core/src/ebpf.rs` (replace all stubs) - Add `bpf/` directory with C programs - Update `Cargo.toml` with eBPF dependencies --- ## 2. YARA Rules Engine Integration **Status:** Not implemented **Priority:** HIGH **Effort:** 1 week ### What's Missing: - YARA rule compilation - Memory scanning with YARA - Custom rule loading from files - Match result processing ### Implementation Tasks: - [ ] Add `yara` or `yara-rust` dependency - [ ] Implement rule compilation from `.yar` files - [ ] Create default ruleset for common malware patterns: - Metasploit payloads - Cobalt Strike beacons - Common shellcode signatures - [ ] Scan process memory regions with compiled rules - [ ] Parse and report YARA matches with metadata - [ ] Add rule update mechanism ### Files to Modify: - `ghost-core/src/yara_engine.rs` (implement YaraEngine) - Add `rules/` directory with `.yar` files - Update detection engine to use YARA results --- ## 3. ML Behavioral Analysis **Status:** Fake/mock implementation **Priority:** MEDIUM **Effort:** 3-4 weeks ### What's Missing: - Real ML model (currently returns random scores) - Feature extraction from process behavior - Model training pipeline - Anomaly detection algorithms ### Implementation Tasks: - [ ] Design feature vector (memory patterns, API calls, timing) - [ ] Collect training dataset: - Clean process samples - Known malware injection samples - [ ] Train models using: - Random Forest for classification - Isolation Forest for anomaly detection - LSTM for temporal patterns - [ ] Use `smartcore` or `linfa` for Rust ML - [ ] Implement feature extraction in real-time - [ ] Add model serialization/loading - [ ] Create confidence scoring system ### Files to Modify: - `ghost-core/src/behavioral_ml.rs` (complete rewrite) - `ghost-core/src/neural_memory.rs` (implement real neural net) - Add `models/` directory for trained models --- ## 4. Windows API Hook Detection **Status:** Incomplete **Priority:** HIGH **Effort:** 2 weeks ### What's Missing: - IAT (Import Address Table) hook detection - Inline hook verification (compare with clean DLL) - SSDT (System Service Descriptor Table) checks - User-mode callback hooks ### Implementation Tasks: - [ ] Read and parse PE IAT from memory - [ ] Compare IAT entries with disk file versions - [ ] Detect inline hooks by checking first bytes of functions: - Look for JMP/CALL instructions - Compare with known-good signatures - [ ] Read clean DLL copies from `System32` - [ ] Implement trampoline detection - [ ] Check for hardware breakpoints (DR registers) - [ ] Detect SetWindowsHookEx chains ### Files to Modify: - `ghost-core/src/hooks.rs` (complete detect_inline_hooks) - Add PE parser for IAT/EAT analysis - Add function prologue comparison --- ## 5. Thread Hijacking Detection **Status:** Not implemented **Priority:** MEDIUM **Effort:** 1 week ### What's Missing: - Thread context inspection (RIP/EIP analysis) - Suspicious thread start address detection - Call stack unwinding and validation ### Implementation Tasks: - [ ] Enumerate all threads in target process - [ ] Get thread context (registers) - [ ] Check if RIP/EIP points to: - Non-image memory - Unbacked regions - RWX pages - [ ] Perform stack walk to detect anomalies - [ ] Compare thread start addresses with legitimate entry points - [ ] Detect suspended threads with modified context ### Files to Modify: - `ghost-core/src/thread.rs` (implement detection logic) - Add stack unwinding on Windows (DbgHelp) - Add thread snapshot comparison --- ## 6. APC Injection Detection **Status:** Stub only **Priority:** MEDIUM **Effort:** 1 week ### What's Missing: - APC queue inspection - User-mode APC monitoring - Kernel-mode APC detection (requires driver) ### Implementation Tasks: - [ ] Use `NtQueryInformationThread` to enumerate APCs - [ ] Check APC target addresses against legitimate modules - [ ] Monitor for `QueueUserAPC` API calls - [ ] Detect alertable wait states being exploited - [ ] Track APC injection from untrusted processes - [ ] Add signature for common APC shellcode loaders ### Files to Modify: - `ghost-core/src/thread.rs` (add APC inspection) - Hook `QueueUserAPC` for real-time detection - Add kernel driver project for kernel APC visibility --- ## 7. Process Hollowing Detection (Advanced) **Status:** Basic checks only **Priority:** MEDIUM **Effort:** 1-2 weeks ### What's Missing: - Deep PE header comparison (memory vs disk) - Section hash verification - Entry point validation - Parent process verification ### Implementation Tasks: - [ ] Read PE from disk and compare with memory: - Section addresses - Import table - Entry point - Code section hashes - [ ] Detect mismatched image base - [ ] Check for suspicious parent/child relationships - [ ] Validate process creation flags - [ ] Detect "doppelgänging" technique - [ ] Check PEB for manipulation - [ ] Monitor for process suspension during startup ### Files to Modify: - `ghost-core/src/hollowing.rs` (expand detection) - `ghost-core/src/memory.rs` (add PE comparison utils) - Add cryptographic hashing for sections --- ## 8. Threat Intelligence Integration **Status:** Mock data **Priority:** LOW **Effort:** 1-2 weeks ### What's Missing: - Real IOC (Indicator of Compromise) feeds - API integration with threat intel platforms - IOC database with updates - Reputation scoring from multiple sources ### Implementation Tasks: - [ ] Integrate with threat intel APIs: - VirusTotal - AlienVault OTX - MISP - Abuse.ch - [ ] Implement IOC database (SQLite/PostgreSQL) - [ ] Add automatic feed updates - [ ] Hash-based lookups (SHA256 of memory regions) - [ ] IP/Domain reputation checks - [ ] Create caching layer for performance - [ ] Add manual IOC import/export ### Files to Modify: - `ghost-core/src/threat_intel.rs` (implement real feeds) - `ghost-core/src/live_feeds.rs` (add API clients) - Add database schema for IOCs - Implement async feed updates --- ## Additional Production Requirements ### Performance Optimization - [ ] Reduce memory scanning overhead (smart region filtering) - [ ] Implement incremental scanning (only changed regions) - [ ] Add multi-threaded process analysis - [ ] Use memory-mapped files for large scans - [ ] Cache detection results ### Real-Time Monitoring - [ ] Implement process creation callbacks (Windows ETW) - [ ] Add memory change notifications - [ ] Create event-driven detection pipeline - [ ] Add filesystem watcher for DLL changes ### Response Actions - [ ] Implement process suspension/termination - [ ] Add memory dumping for forensics - [ ] Create alert notification system (email, webhook) - [ ] Add automatic remediation options - [ ] Generate detailed incident reports ### Evasion Detection - [ ] Detect debugger checks in target process - [ ] Identify VM/sandbox detection attempts - [ ] Monitor timing attacks - [ ] Detect anti-analysis techniques ### Kernel-Level Detection (Windows) - [ ] Develop WDM/WDF kernel driver - [ ] Implement kernel callbacks: - PsSetCreateProcessNotifyRoutine - PsSetLoadImageNotifyRoutine - ObRegisterCallbacks - [ ] Add SSDT hook detection from kernel mode - [ ] Monitor kernel memory modifications --- ## Testing Requirements - [ ] Create test suite with real malware samples (in safe environment) - [ ] Add unit tests for each detection method - [ ] Implement integration tests with injection tools - [ ] Add performance benchmarks - [ ] Create CI/CD for Windows kernel driver signing - [ ] Add fuzzing for input validation --- ## Documentation - [ ] Write detailed API documentation - [ ] Create detection methodology guide - [ ] Add architecture diagrams - [ ] Document MITRE ATT&CK coverage - [ ] Write deployment guide - [ ] Create troubleshooting guide --- ## Estimated Total Effort **Core Features:** 12-15 weeks **Production Polish:** 4-6 weeks **Testing & Documentation:** 2-3 weeks **Total:** ~4-6 months for full implementation