Public/Invoke-NetworkScan.ps1
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<#
.Description Get Hostnames, IPAddresses, Open Ports, Mac Addresses, and Mac Vendors. Mac resolution only works on locally attached networks. .Parameter CIDR A CIDR Range to search. ex: 192.168.0.0/24 .Parameter DeepScan Ports 21, 22, 23, 80, 443, 3389, 9100 are normally scanned. Use DeepScan to get open ports for 21, 22, 23, 25, 53, 67, 80, 139, 389, 443, 445, 902, 3389, 9100. .Parameter Threads Specify the number of threads that run on the port scan. Default is 64 .Example Invoke-NetworkScan -CIDR 192.168.0.0/24 | Sort-Object Vendor Get details for all devices on the local subnet and sort by their OUI .Example Invoke-NetworkScan -CIDR 192.168.0.0/24 -DeepScan | Out-GridView Perform a more thorough port scan and output to gridview .Link https://github.com/TheTaylorLee/AdminToolbox #> function Invoke-NetworkScan { [CmdletBinding()] [Alias('scan')] param( [Parameter (Mandatory = $true, Position = 1)] [ValidateScript( { if ($_ -match '^[0-9]{1,3}[.]{1}[0-9]{1,3}[.]{1}[0-9]{1,3}[.]{1}[0-9]{1,3}[/]{1}[0-9]{2}$') { $true } else { throw "$_ is an invalid pattern. CIDR format must be properly written like 192.168.0.1/24" } })] [string]$CIDR, [Parameter (Mandatory = $false)] [switch]$DeepScan, [Parameter (Mandatory = $false)] [switch]$SkipMac, [Parameter (Mandatory = $false)] [string]$Threads = '64' ) begin { #Flush the local arp cache for most accurate results $ArpRefresh = Remove-ArpCache #Perform port scan first and put results in a script scope variable. This will also cause the arp cache to rebuild if ($null -ne $ArpRefresh) { if ($DeepScan) { $Script:SlowScan = Invoke-PSnmap -ComputerName $CIDR -Port 21, 22, 23, 25, 53, 67, 80, 139, 389, 443, 445, 902, 3389, 9100 -ScanOnPingFail -Dns -NoSummary -PortConnectTimeoutMs 500 -ThrottleLimit $Threads } else { $Script:QuickScan = Invoke-PSnmap -ComputerName $CIDR -Port 21, 22, 23, 80, 443, 3389, 9100 -ScanOnPingFail -Dns -NoSummary -PortConnectTimeoutMs 500 -ThrottleLimit $Threads } } else { Return } #Get path to the OUI list $ModPath = Get-Module AdminToolbox.Networking $P1 = $ModPath.path $P2 = $p1 -replace ("AdminToolbox.NetworkingManifest.psm1", "") $Script:ScanOUI = "$P2" + "support\ScanOUI.txt" } process { #Start a Foreach loop against CIDR Addresses $IPList = (Invoke-PSipcalc -NetworkAddress $CIDR -Enumerate).IPEnumerated ForEach ($IP in $IPList) { #Get MAC Address if it exists try { $Script:Neighbor = Get-NetNeighbor $IP -ErrorAction 'stop' | Where-Object { ($_.LinkLayerAddress -ne '00-00-00-00-00-00') -and ($_.LinkLayerAddress -ne 'ff-ff-ff-ff-ff-ff') } } catch [Microsoft.PowerShell.Cmdletization.Cim.CimJobException] { $Script:Neighbor = $null } catch [System.Management.Automation.RemoteException] { $Script:Neighbor = $null } $MAC = $Script:Neighbor.LinkLayerAddress #If block runs against scan results where Mac Addresses are present if ($null -ne $MAC -and $SkipMac -eq $false) { #If Deepscan parameter is chosen if ($DeepScan) { #Filter the port scan to return results for the currently enumerated subnet from where the network scan returned live network devices $Scan = $Script:SlowScan | Where-Object { $_.Computername -eq $IP } $Mac2 = $Mac.substring(0, 8) #Invoke Mac Lookup against a text file in the support folder of this module $OUI1 = Get-Content $Script:ScanOUI | Where-Object { $_ -like "$mac2*" } #Sometimes the MAC won't be Null, but it's not an actual MAC address. This try catch was quicker to implement then troubleshooting the cause. try { $OUI2 = $OUI1.Substring(9) } catch { $OUI2 = $null } ForEach-Object { #Take the enumerated CIDR IP results from the API call and Port scan. Output using a PSCustomObject [pscustomobject]@{ IP = $IP Hostname = $Scan.'IP/DNS' MacAddress = $MAC Vendor = $OUI2 Ping = $Scan.Ping 'ssh(22)' = $Scan.'Port 22' 'telnet(23)' = $Scan.'Port 23' 'smtp(25)' = $Scan.'Port 25' 'dns(53)' = $Scan.'Port 53' 'dhcp(67)' = $Scan.'Port 67' 'http(80)' = $Scan.'Port 80' 'smb-netbios(139)' = $Scan.'Port 139' 'ldap(389)' = $Scan.'Port 389' 'https(443)' = $Scan.'Port 443' 'smb-cifs(445)' = $Scan.'Port 445' 'vmware(902)' = $Scan.'Port 902' 'rdp(3389)' = $Scan.'Port 3389' 'print(9100)' = $Scan.'Port 9100' } } | Where-Object { ($null -ne $scan.'IP/DNS') -or ($null -ne $MAC) -or ($Scan.Ping -eq $true) -or ($Scan.'Port 22' -eq $true) -or ($Scan.'Port 23' -eq $true) -or ($Scan.'Port 25' -eq $true) -or ($Scan.'Port 53' -eq $true) -or ($Scan.'Port 67' -eq $true) -or ($Scan.'Port 80' -eq $true) -or ($Scan.'Port 139' -eq $true) -or ($Scan.'Port 389' -eq $true) -or ($Scan.'Port 443' -eq $true) -or ($Scan.'Port 445' -eq $true) -or ($Scan.'Port 902' -eq $true) -or ($Scan.'Port 3389' -eq $true) -or ($Scan.'Port 9100' -eq $true) } } #If Deepscan parameter isn't chosen else { #Filter the port scan to return results for the currently enumerated subnet from where the network scan returned live network devices $Scan = $Script:QuickScan | Where-Object { $_.Computername -eq $IP } #Invoke Mac Lookup $Mac2 = $Mac.substring(0, 8) $OUI1 = Get-Content $Script:ScanOUI | Where-Object { $_ -like "$mac2*" } #Sometimes the MAC won't be Null, but it's not an actual MAC address. This try catch was quicker to implement then troubleshooting the cause. try { $OUI2 = $OUI1.Substring(9) } catch { $OUI2 = $null } ForEach-Object { #Take the enumerated CIDR IP results from the API call and Port scan. Output using a PSCustomObject [pscustomobject]@{ IP = $IP Hostname = $Scan.'IP/DNS' MacAddress = $MAC Vendor = $OUI2 Ping = $Scan.Ping 'ssh(22)' = $Scan.'Port 22' 'telnet(23)' = $Scan.'Port 23' 'http(80)' = $Scan.'Port 80' 'https(443)' = $Scan.'Port 443' 'rdp(3389)' = $Scan.'Port 3389' 'print(9100)' = $Scan.'Port 9100' } } | Where-Object { ($null -ne $scan.'IP/DNS') -or ($null -ne $MAC) -or ($Scan.Ping -eq $true) -or ($Scan.'Port 22' -eq $true) -or ($Scan.'Port 23' -eq $true) -or ($Scan.'Port 25' -eq $true) -or ($Scan.'Port 53' -eq $true) -or ($Scan.'Port 67' -eq $true) -or ($Scan.'Port 80' -eq $true) -or ($Scan.'Port 139' -eq $true) -or ($Scan.'Port 389' -eq $true) -or ($Scan.'Port 443' -eq $true) -or ($Scan.'Port 445' -eq $true) -or ($Scan.'Port 902' -eq $true) -or ($Scan.'Port 3389' -eq $true) -or ($Scan.'Port 9100' -eq $true) } } } #If Mac is Null or Skipmac parameter is used else { #If Deepscan parameter is chosen if ($DeepScan) { #Filter the port scan to return results for the currently enumerated IP from the CIDR Range foreach-object loop $Scan = $Script:SlowScan | Where-Object { $_.Computername -eq $IP } #Take the enumerated CIDR IP results from the Port scan and Output using a PSCustomObject [pscustomobject]@{ IP = $IP Hostname = $Scan.'IP/DNS' MacAddress = $MAC Vendor = $null Ping = $Scan.Ping 'ssh(22)' = $Scan.'Port 22' 'telnet(23)' = $Scan.'Port 23' 'smtp(25)' = $Scan.'Port 25' 'dns(53)' = $Scan.'Port 53' 'dhcp(67)' = $Scan.'Port 67' 'http(80)' = $Scan.'Port 80' 'smb-netbios(139)' = $Scan.'Port 139' 'ldap(389)' = $Scan.'Port 389' 'https(443)' = $Scan.'Port 443' 'smb-cifs(445)' = $Scan.'Port 445' 'vmware(902)' = $Scan.'Port 902' 'rdp(3389)' = $Scan.'Port 3389' 'print(9100)' = $Scan.'Port 9100' } | Where-Object { ($null -ne $scan.'IP/DNS') -or ($null -ne $MAC) -or ($Scan.Ping -eq $true) -or ($Scan.'Port 22' -eq $true) -or ($Scan.'Port 23' -eq $true) -or ($Scan.'Port 25' -eq $true) -or ($Scan.'Port 53' -eq $true) -or ($Scan.'Port 67' -eq $true) -or ($Scan.'Port 80' -eq $true) -or ($Scan.'Port 139' -eq $true) -or ($Scan.'Port 389' -eq $true) -or ($Scan.'Port 443' -eq $true) -or ($Scan.'Port 445' -eq $true) -or ($Scan.'Port 902' -eq $true) -or ($Scan.'Port 3389' -eq $true) -or ($Scan.'Port 9100' -eq $true) } } #If Deepscan parameter isn't chosen else { #Filter the port scan to return results for the currently enumerated IP from the CIDR Range foreach-object loop $Scan = $Script:QuickScan | Where-Object { $_.Computername -eq $IP } #Take the enumerated CIDR IP results from the Port scan and Output using a PSCustomObject [pscustomobject]@{ IP = $IP Hostname = $Scan.'IP/DNS' MacAddress = $MAC Vendor = $null Ping = $Scan.Ping 'ssh(22)' = $Scan.'Port 22' 'telnet(23)' = $Scan.'Port 23' 'http(80)' = $Scan.'Port 80' 'https(443)' = $Scan.'Port 443' 'rdp(3389)' = $Scan.'Port 3389' 'print(9100)' = $Scan.'Port 9100' } | Where-Object { ($null -ne $scan.'IP/DNS') -or ($null -ne $MAC) -or ($Scan.Ping -eq $true) -or ($Scan.'Port 22' -eq $true) -or ($Scan.'Port 23' -eq $true) -or ($Scan.'Port 25' -eq $true) -or ($Scan.'Port 53' -eq $true) -or ($Scan.'Port 67' -eq $true) -or ($Scan.'Port 80' -eq $true) -or ($Scan.'Port 139' -eq $true) -or ($Scan.'Port 389' -eq $true) -or ($Scan.'Port 443' -eq $true) -or ($Scan.'Port 445' -eq $true) -or ($Scan.'Port 902' -eq $true) -or ($Scan.'Port 3389' -eq $true) -or ($Scan.'Port 9100' -eq $true) } } } } } end { } } |