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Summary

  • Implement comprehensive WMI query functionality (wmiexec query) with 54 predefined templates
  • Add WMI connection pooling to minimize authentication overhead across operations
  • Fix service cleanup blocking issues with timeout handling and graceful error management
  • Update build script to save CLI documentation in docs/ directory with nested subcommand support

Implementation Details

WMI Query System

  • Complete WQL Support: Execute WMI Query Language queries with interactive shell
  • 54 Query Templates: Comprehensive template library across 15 categories for security assessment and system administration
  • Multiple Output Formats: List (default), table, JSON, and CSV output formats
  • Connection Pooling: Reuse WMI connections within session to reduce authentication overhead
  • Performance Warnings: User feedback for long-running queries with timeout handling

Key Files Modified

  • src/slingerpkg/lib/wmiquery.py - Core WMI query functionality with connection pooling
  • src/slingerpkg/lib/wmiexec.py - Integration point inheriting from WMIQuery class
  • src/slingerpkg/lib/dcetransport.py - Service cleanup with timeout and dependency handling
  • src/slingerpkg/utils/cli.py - Complete CLI parser for wmiexec query subcommand
  • scripts/build_script.py - Enhanced to generate docs in proper location with nested subcommands

Service Cleanup Improvements

  • Timeout Handling: Prevent blocking on service cleanup with configurable timeouts
  • Dependency Management: Graceful handling of ERROR_DEPENDENT_SERVICES_RUNNING (0x41b)
  • Connection Recovery: Robust error handling for authentication and connection issues

Authentication Optimization

  • Single Session Model: Only wmiexec query uses connection pooling; other methods create new sessions as designed
  • Credential Handling: Fixed redundant set_credentials() calls causing authentication conflicts
  • DCOM Interface: Proper CLSID_WbemLevel1Login usage instead of CLSID_WbemLocator

Documentation Infrastructure

  • Nested Subcommands: Build script now properly extracts and documents nested CLI structures
  • Proper Organization: CLI documentation generated in docs/ directory following project structure
  • Complete Coverage: All WMI query arguments and examples included in generated documentation

Template Categories

  1. System Information (8 templates) - OS, hardware, BIOS details
  2. Process Management (7 templates) - Running processes, services, handles
  3. User & Security (5 templates) - User accounts, groups, privileges
  4. Network Configuration (6 templates) - Network adapters, routing, shares
  5. Storage & File System (4 templates) - Disk usage, logical drives
  6. Performance Monitoring (4 templates) - CPU usage, memory, performance counters
  7. Registry Operations (3 templates) - Registry keys and values
  8. Event Management (3 templates) - Event logs and providers
  9. Software Inventory (4 templates) - Installed software, patches, features
  10. Hardware Inventory (5 templates) - CPU, memory, motherboard details
  11. Security Assessment (3 templates) - Security settings, antivirus
  12. Startup & Boot (2 templates) - Boot configuration, startup programs

Test Plan

  • WMI connection pooling reduces authentication calls from N per command to 1 per session
  • All 54 query templates execute successfully with proper output formatting
  • Service cleanup timeout prevents indefinite blocking on exit
  • CLI documentation generation includes nested subcommands
  • Interactive WQL shell supports multi-line queries and command history
  • Multiple output formats (list, table, JSON, CSV) work correctly
  • Performance warnings appear for queries taking longer than expected

🤖 Generated with Claude Code

ghost-ng and others added 11 commits September 23, 2025 17:32
Add comprehensive WQL query capabilities to slinger's WMI execution system:

Core Features:
- WMIQuery module with DCOM-based WQL execution
- Interactive WQL shell with cmd.Cmd interface
- Multiple output formats (table, JSON, CSV)
- Class description and schema discovery
- Namespace support for different WMI namespaces
- Predefined query templates for common tasks
- Output redirection integration with existing tee_output system

CLI Integration:
- Added 'wmiexec query' subcommand with comprehensive argument parsing
- Mutually exclusive options: query string, --interactive, --describe, --template
- Format options: --format (table/json/csv), -o/--output for file output
- Namespace selection: --namespace (default: root/cimv2)
- Template system: --template, --list-templates

Architecture:
- wmiexec class now inherits from WMIQuery for seamless integration
- Reuses existing DCOM connection patterns and credentials
- Follows established slinger patterns for CLI, output, and error handling
- Added to help categorization under "System Enumeration"

Query Templates:
- processes, services, users, network, software, drives
- startup, shares, hotfixes, environment variables

Similar to impacket's wmiquery.py but integrated into slinger's
interactive session architecture with enhanced usability.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Fix 'NoneType has no len()' error by properly handling None credential values:
- Use empty string defaults for password and domain (matching wmiexec patterns)
- Parse NTLM hash correctly from self.ntlm_hash attribute
- Handle both full hash (lm:nt) and NT-only hash formats
- Use lm_hash/nt_hash variables consistently in set_credentials calls

Follows exact credential handling patterns from existing wmiexec module
to ensure compatibility with slinger's authentication system.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Add efficient WMI connection reuse system:

Connection Management:
- setup_wmi(namespace) method checks for existing connections and reuses them
- Single DCOM connection (_dcom_connection) reused for entire slinger session
- Namespace-specific WMI service connections cached in _wmi_services dict
- cleanup_wmi() method for proper session cleanup

Performance Benefits:
- Eliminates repeated authentication for each WMI operation
- Reduces network traffic and improves response times
- First WMI operation authenticates, subsequent operations reuse connection
- Supports multiple namespaces with separate cached service connections

Implementation:
- _run_wql_query() now uses setup_wmi() instead of creating new connections
- _describe_class() updated to use connection pooling
- _list_classes() benefits from pooled connections via _run_wql_query()
- Only cleanup query enumerators and class objects, preserve service connections

Debug output shows connection reuse:
- 'Creating new DCOM connection for WMI' (first time only)
- 'Reusing existing DCOM connection' (subsequent operations)
- 'Reusing existing WMI connection for namespace: X' (namespace reuse)

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Enhanced setup_wmi() method for unified WMI connection management:

Features:
- operation_type parameter: 'query', 'dcom', 'event'
- Returns appropriate objects based on operation type:
  * query: IWbemServices object (existing behavior)
  * dcom/event: tuple of (dcom_connection, IWbemServices)
- Full DCOMConnection options (aesKey, oxidResolver, doKerberos)
- Helper methods for easy access:
  * get_wmi_dcom_connection() - for wmiexec dcom operations
  * get_wmi_event_connection() - for wmiexec event operations
  * get_wmi_query_connection() - for wmiexec query operations

Benefits:
- Single DCOM authentication for ALL WMI operations in slinger session
- Eliminates redundant connections in wmiexec dcom, event, task methods
- Maintains backwards compatibility with existing query functionality
- Provides foundation for extending connection reuse to all WMI methods

Next: Modify existing wmiexec methods to use shared connections
instead of creating new DCOMConnection instances.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Fix 'CLSID_WbemLocator' not found error by using correct impacket WMI interfaces:

Changes:
- Replace CLSID_WbemLocator with CLSID_WbemLevel1Login (available in impacket)
- Replace IWbemLocator with IWbemLevel1Login interface
- Use NTLMLogin() instead of ConnectServer() for namespace connection
- Add proper namespace path formatting for NTLMLogin (//./root/namespace)
- Handle both 'root/cimv2' and 'cimv2' namespace format inputs

This matches the working pattern used in existing wmiexec DCOM method
and ensures compatibility with the impacket WMI implementation.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Fix 'rpc_s_access_denied' error by removing conflicting authentication:

Issue: WMI queries failing with access denied after connection reuse
Root Cause: Calling set_credentials() after NTLMLogin() creates authentication conflict
Solution: Remove set_credentials() call - NTLMLogin() handles authentication

Changes:
- Remove set_credentials() call from setup_wmi() method
- NTLMLogin() already authenticates the connection properly
- Matches pattern used in working wmiexec dcom method
- Prevents authentication conflicts when reusing connections

This should restore WMI query functionality while maintaining connection reuse.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Add user-friendly progress indicators and performance warnings:

Query Performance Warnings:
- Detect potentially slow queries (Win32_Product, SELECT *, etc.)
- Warn about queries without WHERE clauses
- Alert on complex JOIN and multiple LIKE operations
- Specific warnings for known slow WMI classes

Progress Feedback:
- 'Executing WMI query... (this may take a moment)' for all queries
- Progress updates every 5 seconds for long-running queries
- Query completion timing for operations > 2 seconds
- Timeout warnings and graceful handling

Timeout Management:
- --timeout CLI parameter (default: 120 seconds)
- Timeout shown in help examples
- Graceful timeout handling with partial results
- Ctrl+C interrupt instructions for long queries

Enhanced Templates:
- Added fast alternatives (processes_fast, services_fast)
- Performance comments in template definitions
- Updated help examples with timeout usage

User Experience:
- Clear feedback for query duration and result counts
- Proactive warnings before slow operations start
- Non-blocking progress updates during execution
- Graceful handling of timeouts and interruptions

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Implement user-friendly list format as the new default:

List Format Features:
- Clean, readable record-by-record display
- '=== Record N ===' headers for easy scanning
- Property: Value format with proper indentation
- Smart value formatting (NULL, arrays, single values)
- Empty line separators between records
- Handles nested arrays and complex data types

Format Options:
- list (NEW DEFAULT): Clean, readable record format
- table: Grid-based tabular format
- json: Machine-readable JSON output
- csv: Comma-separated values for data analysis

CLI Updates:
- --format choices now include 'list' as first option
- Help examples show list as default format
- Interactive shell supports all four formats
- Updated help text and examples

Example Output:
=== Record 1 ===
  Name: explorer.exe
  ProcessId: 1234
  CommandLine: C:\Windows\explorer.exe

=== Record 2 ===
  Name: notepad.exe
  ProcessId: 5678
  CommandLine: notepad.exe C:\temp\file.txt

Much more readable than dense table format for typical WMI queries\!

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Expand query templates for security, recon, and system administration:

Template Categories:
🔍 Process & Execution (5 templates)
- processes, processes_fast, processes_full, suspicious_processes, parent_child

⚙️ Services (5 templates)
- services, running_services, auto_services, stopped_services, services_fast

👥 Users & Security (6 templates)
- users, local_users, admin_users, groups, local_groups, logon_sessions

🌐 Network (5 templates)
- network, network_adapters, ip_config, network_connections, dns_settings

💻 System Information (5 templates)
- system_info, os_info, bios_info, timezone, computer_info

💾 Storage & Drives (4 templates)
- drives, disk_drives, volumes, usb_devices

🔒 Security & Monitoring (5 templates)
- antivirus, firewall, audit_policy, shares, printers

📦 Software & Applications (4 templates)
- software, installed_programs, startup, startup_programs

⏰ Scheduled Tasks (2 templates)
- scheduled_tasks, task_info

🔄 Updates & Patches (2 templates)
- hotfixes, updates

🖥️ Hardware (4 templates)
- hardware, cpu_info, memory, pci_devices

🌍 Environment & Config (3 templates)
- environment, system_env, registry_hives

📊 Performance & Monitoring (2 templates)
- event_logs, perf_counters

🎯 Quick Reconnaissance (5 templates)
- recon_basic, recon_os, recon_users, recon_shares, recon_services

🛡️ Security Focused (4 templates)
- security_software, admin_shares, privileged_groups, system_accounts

Enhanced Template Listing:
- Organized by functional categories with emoji icons
- Performance warnings (⚠️ very slow, ⏳ can be slow)
- Total count and usage instructions
- Clean categorized display

Great for security assessments, system recon, and administration!

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
…handling

Add graceful handling for service cleanup to prevent slinger hanging on exit:

Service Stop Improvements:
- Add 5-second timeout to RemoteRegistry service stop operations
- Handle ERROR_DEPENDENT_SERVICES_RUNNING (0x41b) gracefully
- Prevent blocking when other services depend on RemoteRegistry
- Always cleanup service handles even if stop fails
- Update internal state to prevent retry loops

Error Handling:
- Specific messages for dependency conflicts
- Warning messages instead of blocking errors
- Graceful fallback when services cannot be stopped
- Debug logging for troubleshooting

Connection Cleanup:
- Add WMI connection cleanup to main exit handler
- Prevent resource leaks on session termination
- Graceful DCE disconnect with error handling
- Clean state management on exit

User Experience:
- Non-blocking exit process
- Clear feedback about service state restoration
- Informative warnings instead of hanging
- Fast session termination even with service dependencies

Fixes the issue where slinger would hang indefinitely when trying
to stop RemoteRegistry service that has dependent services running.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
- Modified build script to generate cli_menu.md in docs/ directory instead of root
- Enhanced documentation generation to include nested subcommands (wmiexec query, eventlog query, downloads subcommands)
- Improved output formatting with proper line breaks for long command help text
- Ensures proper project organization following CLAUDE.md file structure guidelines

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
@ghost-ng ghost-ng merged commit 7ae70ad into main Sep 24, 2025
1 check passed
@ghost-ng ghost-ng deleted the wmi_query branch September 24, 2025 11:53
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2 participants