Get-InternetAccessInfo.psm1
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# # Created by: lucas.cueff[at]lucas-cueff.com # # v0.1 : initial release # Released on: 03/2018 # #'(c) 2018 lucas-cueff.com - Distributed under Artistic Licence 2.0 (https://opensource.org/licenses/artistic-license-2.0).' <# .SYNOPSIS simple PowerShell module to get all information regarding the way your endpoint is connected to internet .DESCRIPTION multiple functions are used to retrieve all information regarding your external network access usefull on a unknown host to find how the external network access is working informations retrieved : - network status from network location awareness / network location manager - settings of NLA service - all settings (proxy mainly) set for each network connections - winhttp settings - internet settings - wpad settings .EXAMPLE C:\PS> import-module Get-InternetAccessInfo.psm1 #> function Get-NLAInfo { <# .SYNOPSIS function used to retrieve Network Location Awareness information .DESCRIPTION Network location awareness automates several network test (icmp, dns, http) to detect the current network environment (type, category, connectivity) .PARAMETER NetworkStatus -NetworkStatus string from the following list : 'AllNetworks','ConnectedNetworks','DisconnectedNetworks' mandatory type of network interface you want to check : all, only the connected ones, only the disconnected ones. .OUTPUTS TypeName : System.Management.Automation.PSCustomObject Name MemberType Definition ---- ---------- ---------- Equals Method bool Equals(System.Object obj) GetHashCode Method int GetHashCode() GetType Method type GetType() ToString Method string ToString() Domain Type NoteProperty string Domain Type=NLM_DOMAIN_TYPE_NON_DOMAIN_NETWORK Network Category NoteProperty string Network Category=NLM_NETWORK_CATEGORY_PUBLIC Network Connectivity NoteProperty Object[] Network Connectivity=System.Object[] Network Name NoteProperty string Network Name=XYZ .EXAMPLE Get all information from NLA for the connected network interfaces C:\PS> Get-NLAInfo -NetworkStatus ConnectedNetworks #> [cmdletbinding()] param( [parameter(Mandatory=$true)] [ValidateSet('AllNetworks','ConnectedNetworks','DisconnectedNetworks')] [string]$NetworkStatus ) $NetworkListManager = [Activator]::CreateInstance([Type]::GetTypeFromCLSID('DCB00C01-570F-4A9B-8D69-199FDBA5723B')) $NLM_ENUM_NETWORK_CONNECTED=1 $NLM_ENUM_NETWORK_DISCONNECTED=2 $NLM_ENUM_NETWORK_ALL=3 $NetCategories = @{ 0x00="NLM_NETWORK_CATEGORY_PUBLIC"; 0x01="NLM_NETWORK_CATEGORY_PRIVATE"; 0x02="NLM_NETWORK_CATEGORY_DOMAIN_AUTHENTICATED" } $DomainTypes = @{ 0x00="NLM_DOMAIN_TYPE_NON_DOMAIN_NETWORK"; 0x01="NLM_DOMAIN_TYPE_DOMAIN_NETWORK"; 0x02="NLM_DOMAIN_TYPE_DOMAIN_AUTHENTICATED" } $NLMConnectivity = @{ 0x0000="NLM_CONNECTIVITY_DISCONNECTED"; 0x0001="NLM_CONNECTIVITY_IPV4_NOTRAFFIC"; 0x0002="NLM_CONNECTIVITY_IPV6_NOTRAFFIC"; 0x0010="NLM_CONNECTIVITY_IPV4_SUBNET"; 0x0020="NLM_CONNECTIVITY_IPV4_LOCALNETWORK"; 0x0040="NLM_CONNECTIVITY_IPV4_INTERNET"; 0x0100="NLM_CONNECTIVITY_IPV6_SUBNET"; 0x0200="NLM_CONNECTIVITY_IPV6_LOCALNETWORK"; 0x0400="NLM_CONNECTIVITY_IPV6_INTERNET" } Switch ($NetworkStatus) { 'AllNetworks' {$Networks = $NetworkListManager.GetNetworks($NLM_ENUM_NETWORK_ALL)} 'ConnectedNetworks' {$Networks = $NetworkListManager.GetNetworks($NLM_ENUM_NETWORK_CONNECTED)} 'DisconnectedNetworks' {$Networks = $NetworkListManager.GetNetworks($NLM_ENUM_NETWORK_DISCONNECTED)} } $AllNetworkObjects = @() foreach($Network in $Networks){ $AllConnectivityStatus = @() foreach($Key in $NLMConnectivity.Keys){ $KeyBand = $Key -band $Network.GetConnectivity() if($KeyBand -gt 0){ $AllConnectivityStatus += $NLMConnectivity.Get_Item($KeyBand) } } $NetworkObject = [PSCustomObject]@{ 'Network Name' = $Network.GetName() 'Domain Type' = $DomainTypes.Get_Item($Network.GetDomainType()) 'Network Category' = $NetCategories.Get_Item($Network.GetCategory()) 'Network Connectivity' = $AllConnectivityStatus } $AllNetworkObjects += $NetworkObject } return $AllNetworkObjects } Function Get-WinHttpProxy { <# .SYNOPSIS function used to retrieve proxy set for local machine web layer aka winhttp .DESCRIPTION retrieve proxy set for local machine web layer aka winhttp .OUTPUTS TypeName : System.Management.Automation.PSCustomObject Name MemberType Definition ---- ---------- ---------- Equals Method bool Equals(System.Object obj) GetHashCode Method int GetHashCode() GetType Method type GetType() ToString Method string ToString() Winhttp proxy NoteProperty string Winhttp proxy=Direct Access Winhttp proxy bypass list NoteProperty string Winhttp proxy bypass list=(none) .EXAMPLE Get all information about winhttp proxy C:\PS> Get-WinHttpProxy #> [CmdletBinding()] Param() try { $Conprx = (Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections" -Name WinHttpSettings).WinHttpSettings } catch { $Conprx = $null } finally { if ($Conprx) { $proxylength = $Conprx[12] if ($proxylength -gt 0) { $proxy = -join ($Conprx[(12+3+1)..(12+3+1+$proxylength-1)] | ForEach-Object {([char]$_)}) $bypasslength = $Conprx[(12+3+1+$proxylength)] if ($bypasslength -gt 0) { $bypasslist = -join ($Conprx[(12+3+1+$proxylength+3+1)..(12+3+1+$proxylength+3+1+$bypasslength)] | ForEach-Object {([char]$_)}) } else { $bypasslist = '(none)' } $result = [PSCustomObject]@{ "Winhttp proxy" = $proxy "Winhttp proxy bypass list" = $bypasslist } } else { $result = [PSCustomObject]@{ "Winhttp proxy" = "Direct Access" "Winhttp proxy bypass list" = "(none)" } } } else { $result = [PSCustomObject]@{ "Winhttp proxy" = "error - not able to read registry entry" "Winhttp proxy bypass list" = "error - not able to read registry entry" } } } return $result } Function Get-UserconnectionProxy { <# .SYNOPSIS function used to retrieve proxy information for all network connection used by the current user context .DESCRIPTION retrieve proxy information for all network connection used by the current user context .OUTPUTS TypeName : System.Management.Automation.PSCustomObject Name MemberType Definition ---- ---------- ---------- Equals Method bool Equals(System.Object obj) GetHashCode Method int GetHashCode() GetType Method type GetType() ToString Method string ToString() User proxy NoteProperty string User proxy=proxy.cc.dddddd.io:8080 User proxy bypass list NoteProperty string User proxy bypass list=test;<local>) User proxy connection name NoteProperty string User proxy connection name=SavedLegacySettings User proxy PAC NoteProperty string User proxy PAC=http://xxxxxx.yy.zzzz.io:8080/ .EXAMPLE Get all information about user connections C:\PS> Get-UserconnectionProxy #> [CmdletBinding()] Param() try { $Conprx = Get-Item "HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections" } catch { $Conprx = $null } finally { $results = @() if ($Conprx) { $ConRegValues = $Conprx.GetValueNames() foreach ($value in $ConRegValues) { $result = [PSCustomObject]@{ "User proxy connection name" = $value } $tmpvalue = $Conprx.GetValue($value) $pacentr = $null for($i=0;$i -le $tmpvalue.length;$i++){ if (($tmpvalue[$i] -eq 36) -or ($tmpvalue[$i] -eq 41)) { $pacentr = $i break } } if ($pacentr) { $proxypac = -join ($tmpvalue[($pacentr+3+1)..($pacentr+3+1+$tmpvalue.length-1)] | ForEach-Object {([char]$_)}) $Result | add-member -MemberType NoteProperty -Name "User proxy PAC" -Value $proxypac } else { $Result | add-member -MemberType NoteProperty -Name "User proxy PAC" -Value "none" } $proxylength = $tmpvalue[12] if ($proxylength -gt 0) { $proxy = -join ($tmpvalue[(12+3+1)..(12+3+1+$proxylength-1)] | ForEach-Object {([char]$_)}) $bypasslength = $tmpvalue[(12+3+1+$proxylength)] if ($bypasslength -gt 0) { $bypasslist = -join ($tmpvalue[(12+3+1+$proxylength+3+1)..(12+3+1+$proxylength+3+1+$bypasslength)] | ForEach-Object {([char]$_)}) } else { $bypasslist = '(none)' } $Result | add-member -MemberType NoteProperty -Name "User proxy" -Value $proxy $Result | add-member -MemberType NoteProperty -Name "User proxy bypass list" -value $bypasslist } else { $Result | add-member -MemberType NoteProperty -Name "User proxy" -value "Direct Access" $Result | add-member -MemberType NoteProperty -Name "User proxy bypass list" -value "(none)" } $results += $result } } else { $result = [PSCustomObject]@{ "User connection proxy" = "error - not able to read registry entry" } $results += $result } } return $results } Function Get-NLAServiceInfo { <# .SYNOPSIS function used to retrieve windows service paramareters for all NLA service .DESCRIPTION function used to retrieve windows service paramareters for all NLA service : - DNS, HTTP endpoint used for test, IPV4 and IPV6 endpoint used for test .OUTPUTS TypeName : System.Management.Automation.PSCustomObject Name MemberType Definition ---- ---------- ---------- Equals Method bool Equals(System.Object obj) GetHashCode Method int GetHashCode() GetType Method type GetType() ToString Method string ToString() NLA Check Disabled By Policy NoteProperty bool NLA Check Disabled By Policy=False NLA Service Settings NoteProperty hashtable NLA Service Settings=System.Collections.Hashtable .EXAMPLE Get all information about NLA service parameters C:\PS> Get-NLAServiceInfo #> [CmdletBinding()] Param() $NLASettings=@{} try { $NLASVCSettings = Get-Item "hklm:\SYSTEM\CurrentControlSet\Services\NlaSvc\Parameters\Internet" } catch { $NLASVCSettings = $null } finally { if ($NLASVCSettings) { $SvcRegValues = $NLASVCSettings.GetValueNames() } foreach ($value in $SvcRegValues) { $NLASettings.add($value,$NLASVCSettings.GetValue($value)) } } try { $NLAPolicyKey = Get-Item "hklm:\SOFTWARE\Policies\Microsoft\Windows\NetworkConnectivityStatusIndicator" $NLAPolicyIndicatorValue = $NLAPolicyKey.GetValue("EnableActiveProbing") } catch { $NLAPolicyKey = $null } Finally { if ($NLAPolicyIndicatorValue -eq 0) { $NLACheckDisabledByPolicy = $true } Else { $NLACheckDisabledByPolicy = $false } } $SettingsObject = [PSCustomObject]@{ 'NLA Service Settings' = $NLASettings 'NLA Check Disabled By Policy' = $NLACheckDisabledByPolicy } return $SettingsObject } Function Get-InternetAccessInfo { <# .SYNOPSIS main function calling all other functions available in the module do build a global summary of all available information regarding the internet access of the computer/user .DESCRIPTION main function calling all other functions available in the module do build a global summary of all available information regarding the internet access of the computer/user .OUTPUTS TypeName : System.Management.Automation.PSCustomObject Name MemberType Definition ---- ---------- ---------- Equals Method bool Equals(System.Object obj) GetHashCode Method int GetHashCode() GetType Method type GetType() ToString Method string ToString() Internet settings NoteProperty System.Management.Automation.PSCustomObject Internet settings=@{User Proxy=False; Use... NLA NoteProperty Object[] NLA=System.Object[] NLA service NoteProperty System.Management.Automation.PSCustomObject NLA service=@{NLA Service Settings=System... User connections NoteProperty Object[] User connections=System.Object[] Winhttp NoteProperty System.Management.Automation.PSCustomObject Winhttp=@{Winhttp proxy=Direct Access; Wi... .EXAMPLE Get all information about current user/machine internet access C:\PS> Get-InternetAccessInfo #> [CmdletBinding()] Param() $Result = [PSCustomObject]@{ "NLA" = (Get-NLAInfo -NetworkStatus 'ConnectedNetworks') "NLA service"= Get-NLAServiceInfo "Winhttp" = Get-WinHttpProxy "User connections" = Get-UserconnectionProxy "Internet settings" = Get-UserInternetSettings } return $Result } Function Get-UserInternetSettings { <# .SYNOPSIS function used to get : - all information regarding your basic internet settings used by Internet Explorer/Edge or third party browser like Goole Chrome/Chromium - wpad settings .DESCRIPTION function used to get : - all information regarding your basic internet settings used by Internet Explorer/Edge or third party browser like Goole Chrome/Chromium - wpad settings .OUTPUTS TypeName : System.Management.Automation.PSCustomObject Name MemberType Definition ---- ---------- ---------- Equals Method bool Equals(System.Object obj) GetHashCode Method int GetHashCode() GetType Method type GetType() ToString Method string ToString() Force Disable WPAD NoteProperty bool Force Disable WPAD=False User Proxy NoteProperty bool User Proxy=False User Proxy Autoconfig URL NoteProperty object User Proxy Autoconfig URL=null User Proxy HTTP1.1 NoteProperty bool User Proxy HTTP1.1=False User Proxy Migrate NoteProperty bool User Proxy Migrate=True User Proxy server NoteProperty string User Proxy server=proxy.xx.yyyyyyyyyyyyyyy.io:8080 User Proxy WPAD NoteProperty bool User Proxy WPAD=False WPAD Service Status NoteProperty ServiceControllerStatus WPAD Service Status=Running .EXAMPLE Get all information regarding your basic internet settings C:\PS> Get-UserInternetSettings #> [CmdletBinding()] Param() $Results=[PSCustomObject]@{} try { $InternetSettings = Get-Item "hkcu:\Software\Microsoft\Windows\CurrentVersion\Internet Settings" } catch { $InternetSettings = $null } finally { if ($InternetSettings) { try { [bool]$booltmp = $InternetSettings.GetValue("ProxyEnable") } catch { $booltmp = $false } finally { $Results | add-member -MemberType NoteProperty -Name "User Proxy" -Value $booltmp } try { [bool]$booltmp2 = $InternetSettings.GetValue("ProxyHTTP1.1") } catch { $booltmp2 = $false } finally { $Results | add-member -MemberType NoteProperty -Name "User Proxy HTTP1.1" -Value $booltmp2 } $Results | add-member -MemberType NoteProperty -Name "User Proxy server" -Value $InternetSettings.GetValue("ProxyServer") $Results | add-member -MemberType NoteProperty -Name "User Proxy Autoconfig URL" -Value $InternetSettings.GetValue("AutoConfigURL") try { [bool]$booltmp3 = $InternetSettings.GetValue("AutoDetect") } catch { $booltmp3 = $false } finally { $Results | add-member -MemberType NoteProperty -Name "User Proxy WPAD" -Value $booltmp3 } try { [bool]$booltmp4 = $InternetSettings.GetValue("MigrateProxy") } catch { $booltmp4 = $false } finally { $Results | add-member -MemberType NoteProperty -Name "User Proxy Migrate" -Value $booltmp4 } } } try { $WPADSettings = Get-Item "hkcu:\Software\Microsoft\Windows\CurrentVersion\Internet Settings\WPAD" } catch { $WPADSettings = $null } finally { if ($WPADSettings.GetValue("WpadOverride")) { [bool]$booltmp5 = $WPADSettings.GetValue("WpadOverride") $Results | add-member -MemberType NoteProperty -Name "Force Disable WPAD" -Value $booltmp5 } Else { $Results | add-member -MemberType NoteProperty -Name "Force Disable WPAD" -Value $false } } try { $WPADServiceStatus = (Get-Service WinHttpAutoProxySvc).status } catch { $WPADServiceStatus = $null } finally { If ($WPADServiceStatus) { $Results | add-member -MemberType NoteProperty -Name "WPAD Service Status" -Value $WPADServiceStatus } else { $Results | add-member -MemberType NoteProperty -Name "WPAD Service Status" -Value "N/A" } } return $results } Export-ModuleMember -Function Get-NLAInfo,Get-NLAServiceInfo,Get-UserconnectionProxy,Get-WinHttpProxy,Get-InternetAccessInfo,Get-UserInternetSettings |