NET_Monitor.psm1
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function Find-Network { [CmdletBinding(SupportsShouldProcess)] Param( [Parameter(Mandatory)] [int32]$NetNumber , [Parameter(Mandatory)] [string]$Path , [Parameter(Mandatory)] [int32]$start_of_range , [Parameter(Mandatory)] [int32]$end_of_range ) if ($start_of_range -gt $end_of_range) { Write-Output "Wrong range" break } #Determination of changing octets for network of class C $ip1=192 $ip2=168 $ip3=$NetNumber $ip4=$start_of_range for ($ip4=$start_of_range;$ip4 -le $end_of_range;$ip4++) { $IP="$ip1"+'.'+"$ip2"+'.'+"$ip3"+'.'+"$ip4" #Pulling together the ip-address from octet-pieces Write-Output "Scanning host $ip1.$ip2.$ip3.$ip4" #Marking the current scanning host $attributes=@{ #Creating hash-table(array) of attributes for each host IPAddress=$IP ComputerName=$null Status='OFFLINE' MAC=$null Processor=$null User=$null #Added Password=$null #Added } #Connection's status if (Test-Connection -ComputerName $IP -Count 1 -Quiet) { $attributes.Status = 'ONLINE' } #DNS-name if ($DNS_Name = (Resolve-DnsName -Name $IP -ErrorAction SilentlyContinue).NameHost) { $attributes.ComputerName = $DNS_Name Set-Item WSMan:\localhost\Client\TrustedHosts -Value $DNS_Name -Force -ErrorAction SilentlyContinue #Adds a remote computer to list of trusted hosts(it's useful for sessions) #MAC-address $attributes.MAC=Get-CimInstance -Classname win32_Networkadapter -ComputerName $DNS_Name -ErrorAction SilentlyContinue | Where-Object {$_.AdapterType -eq "Ethernet 802.3"} | Where-Object {$_.MacAddress} | Select-Object -ExpandProperty macaddress #Processor's name $attributes.Processor=Get-CimInstance -Classname Win32_Processor -ComputerName $DNS_Name -ErrorAction SilentlyContinue | Select-Object -Property Name #User's name $attributes.User=Get-CimInstance -Classname win32_ComputerSystem -ComputerName $DNS_Name -ErrorAction SilentlyContinue | Select-Object -Property Username #Added later } else { $attributes.ComputerName = 'DOES NOT EXIST/diff OS' } [pscustomobject]$attributes | Export-Csv -Path $Path -Append -NoTypeInformation -Force #Creating PSobject for each row of table and sending it into the outer CSV-file } $result=Import-Csv -Path $Path #Imports the whole bunch of objects from the CSV-file to the array "$result" return $result #Containing the whole table of objects } function New-HtmlReport { [CmdletBinding(SupportsShouldProcess)] Param ( [Parameter(Mandatory,ValueFromPipelineByPropertyName=$true)] [string] $ComputerName , [Parameter(Mandatory)] [string]$Path ) process { Write-Output "Making report for $ComputerName ..." $File="$Path"+"\"+"$ComputerName"+".html" #Creating the report's name from its path and name of computer #Header of HTML report which includes css-styles within $Header="<style> p { border: 2px double olive; background: DeepSkyBlue; padding: 15px; width:450px; text-align:center; } div { border:4px solid black; background: Blue; text-align:center; margin-top:10px; } table { border: 1px solid #000000; background: SkyBlue; } h1{ background:MediumSlateBlue; text-align:center; display:inline-block; margin-left:50%; font-size:250%; } body { background:MediumAquamarine; } </style>" #WMI is the chosen technology for extraction info from local machines (distant Powershell sessions require more time for execution and demand additional settings with Powershell starting with 5.1) #Computer's Name $Name= "<b><h1>$ComputerName</h1></b><br>" #IPv4 IP-addresses of the remote machine $IP=Resolve-DnsName -Name $ComputerName | Where-Object {$_.Type -eq "A"} | Select-Object -Property "IPAddress" | ConvertTo-Html -PreContent "<b><big>IP-addresses</big></b>" #Cutting code for html-tags(div- for clauses , p - for subclauses) $p_start="<p><b><big>" $p_stop="</big></b></p>" $div_start="<div><b><h2>" $div_stop="</h2></b></div>" #It's impossible to unite the first paragraph into the cycle because of the ability of conveyer - it's possible to change varibles into the left side of it #1.Info(first paragraph about OS and hardware of the remote computer) $Info= $div_start,"1.INFO",$div_stop #Fragment(Motherboard) $about_motherboard=Get-CimInstance -ComputerName $ComputerName -Classname win32_baseboard | Select-Object -Property Manufacturer,Product,Version,SerialNumber | ConvertTo-Html -PreContent $p_start,"1.1 Motherboard",$p_stop #Fragment(RAM) $about_ram=Get-CimInstance -ComputerName $ComputerName -Classname win32_physicalmemory | Select-Object -Property BankLabel,PartNumber,@{Label="Capacity(Gb)"; Expression={$_.Capacity/1Gb}},ConfiguredClockSpeed,ConfiguredVoltage,SerialNumber | ConvertTo-Html -PreContent $p_start,"1.2 RAM",$p_stop #Fragment(Processor) $about_processor=Get-CimInstance -ComputerName $ComputerName -Classname win32_processor |Select-Object -Property Name,ThreadCount,Virualization,AddressWidth,MaxClockSpeed | ConvertTo-Html -PreContent $p_start,"1.3 Processor",$p_stop #Fragment(Physical disks) $about_physicaldisks=Get-CimInstance -ComputerName $ComputerName -Classname win32_diskdrive | Select-Object -Property DeviceID,Caption,Status,InterfaceType,@{Label="Size(Gb)"; Expression={[math]::Round($_.Size/1Gb,1)}},SerialNumber | ConvertTo-Html -PreContent $p_start,"1.4 Physical disks",$p_stop #Fragment(network adapter with type of Ethernet) $about_netAdapter=Get-CimInstance -ComputerName $ComputerName -Classname win32_NetworkAdapter |Where-Object {$_.NetConnectionID -eq "Ethernet"} |Select-Object -Property Name,Description,MACAddress,PhysicalAdapter | ConvertTo-Html -PreContent $p_start,"1.5 Network adapter ETHERNET",$p_stop #Fragment(Operating system) $about_operatingSystem=Get-CimInstance -ComputerName $ComputerName -Classname win32_operatingsystem | Select-Object -Property Name,OSArchitecture,Version,SerialNumber,SystemDirectory | ConvertTo-Html -PreContent $p_start,"1.6 Operating system",$p_stop #Fragment(BIOS) $about_bios=Get-CimInstance -ComputerName $ComputerName -Classname win32_bios | Select-Object -Property Description,Manufacturer,Status,PrimaryBIOS,ReleaseDate | ConvertTo-Html -PreContent $p_start,"1.7 BIOS",$p_stop #Fragment(Videocard) $about_graphics=Get-CimInstance -ComputerName $ComputerName -Classname Win32_VideoController | Select-Object -Property DeviceID,VideoProcessor,CurrentHorizontalResolution,CurrentVerticalResolution | ConvertTo-Html -PreContent $p_start,"1.8 Videocard",$p_stop #2.Perfomance(second paragraph about state of system in the real time) $Perfomance= $div_start,"2.PERFOMANCE",$div_stop #Fragment(Logical disks of OS) $about_logicaldisks=Get-CimInstance -ComputerName $ComputerName -Classname win32_logicaldisk | Select-Object -Property DeviceID,VolumeName,FileSystem,@{Label="FreeSpace(Gb)"; Expression={[math]::Round($_.FreeSpace/1Gb,1)}},@{Label="Size(Gb)"; Expression={[math]::Round($_.Size/1Gb,1)}} | ConvertTo-Html -PreContent $p_start,"2.1 Logical partitions of OS ",$p_stop #Fragment(Available RAM , in %) #-Counter '\Memory\Available MBytes'(for eng version of OS Windows) $about_ramusage=Get-Counter -ComputerName $ComputerName -Counter '\Memory\Available MBytes' -ErrorAction SilentlyContinue | Select-Object -Property TimeStamp,Readings | ConvertTo-Html -PreContent $p_start,"2.2 Free RAM in % (at the current moment)",$p_stop #Fragment(Percent usage of processor) #-Counter '\Processor(_Total)\% Processor Time'(for eng version of OS Windows) $about_cpuUsage=Get-Counter -ComputerName $ComputerName -Counter '\Processor(_Total)\% Processor Time' -ErrorAction SilentlyContinue | Select-Object -Property TimeStamp,Readings | ConvertTo-Html -PreContent $p_start,"2.3 CPU usage in %(at the current moment)",$p_stop #Fragment(Working services of OS) $about_services=Get-Service -ComputerName $ComputerName | Where-Object {$_.Status -eq "Running"} | Select-Object -Property Name,Status | ConvertTo-Html -PreContent $p_start,"2.4 Services(Running)",$p_stop #Fragment(Processes of OS with usage of CPU >=10) try { $about_processes=Get-Process -ComputerName $ComputerName -ErrorAction SilentlyContinue | Where-Object {$_.CPU -ge 10} | Select-Object -Property Id,ProcessName,CPU | ConvertTo-Html -PreContent $p_start,"2.5 Processes",$p_stop } catch { Write-Output "Inforamtion about the processes at the remote host can't be extracted.Check status of the service 'RemoteRegistry' and open 135 TCP port at the remote computer..." } #3.Printers(third paragraph about outer printers) $Printers=$div_start,"3.AVAILABLE PRINTERS",$div_stop #Fragment(Available printers on the remote machine) $about_printers=Get-CimInstance -ComputerName $ComputerName -classname win32_printer | Select-Object -Property DeviceID,Default,Network,HorizontalResolution,VerticalResolution | ConvertTo-Html -PreContent $p_start,"3.1 Connected printers",$p_stop ConvertTo-Html -Head $Header -Body "$Name $IP $Info $about_motherboard $about_ram $about_processor $about_physicaldisks $about_netAdapter $about_operatingSystem $about_bios $about_graphics $Perfomance $about_logicaldisks $about_ramusage $about_cpuUsage $about_services $about_processes $Printers $about_printers" -Title "$ComputerName report" | Out-File $File #Gathering the blocks of HTML-code into the single outer file with name of PC and path from input } } function Watch-TcpConnection { [CmdletBinding(SupportsShouldProcess)] Param ( [Parameter(Mandatory,ValueFromPipelineByPropertyName=$true)] [string]$ComputerName , [Parameter(Mandatory)] [int32[]] $tcp_ports , [Parameter(Mandatory=$true)] [string]$token , [Parameter(Mandatory=$true)] [string]$chatID , [Parameter(Mandatory=$true)] [string]$LogPath ) process { #Creating new PS-session with the remote computer $session=New-PSSession -ComputerName $ComputerName -Name CheckTCPPorts -ErrorAction SilentlyContinue #Checking the connection #(In the case of "yes" - each port from input is going to be checked againt the table of established connections which was acquired from the remote server, #if the numbers of those two ports matches then the program sends notification to system administrator. Otherwise , it writes about what it's impossible to create remote session $zero=$null If ($session -ne $zero ) { Write-Output "The connection had been succesfully established" #Executing an infinite cycle(just like a service in operating system) while ($true) { $IncomingConnection =Invoke-Command -session $session -scriptblock { Get-NetTCPConnection -State Established } foreach ($port in $tcp_ports) { #The cycle through input ports foreach ($connection in $IncomingConnection) { #The incapsulated cycle through active TCP-connections at the remote server if ($connection.LocalPort -eq $port) { Write-Output "Established connection was detected on $port port!" "ALERT!!! SOMEONE IS TRYING TO REACH YOUR SERVER $ComputerName BY USING $port PORT! " | New-TelegramMessage -token $token -chatID $chatID -ErrorAction SilentlyContinue #Writing logs (date + message) $date=Get-Date -Format "HH:mm dd-MM-yyyy" $date+" "+"ALERT!!! SOMEONE IS TRYING TO REACH YOUR SERVER $ComputerName BY USING $port PORT! " | Out-File -FilePath $LogPath -Append } } } Start-Sleep 60 } } else { Write-Output "Impossible to create session. Check the status of WMI service at the distant computer" } } } function Watch-DiskCSpace { [CmdletBinding(SupportsShouldProcess)] #For supporting such attributes like -whatif and -confirm Param ( [Parameter(Mandatory=$true,ValueFromPipelineByPropertyName)] [string]$ComputerName , [Parameter(Mandatory=$true,ValueFromPipelineByPropertyName)] [string]$token , [Parameter(Mandatory=$true,ValueFromPipelineByPropertyName)] [string]$chatID ) process { $session=New-PSSession -ComputerName $ComputerName -Name CheckDiskC #Session's name serves as identificator for farther her eliminating #Invoke-Command -Session $session -ArgumentList $token,$chatID -ScriptBlock { while ($true) { $HostName=Invoke-Command -Session $session -ScriptBlock {hostname} $FreeSpace=(Get-CimInstance -ComputerName $ComputerName -ClassName win32_logicaldisk | Where-Object {$_.Name -eq "C:"}).FreeSpace $FullSize=(Get-CimInstance -ComputerName $ComputerName -ClassName win32_logicaldisk | Where-Object {$_.Name -eq "C:"}).Size $FreeSpaceInPercents=[math]::Round(($FreeSpace/$FullSize)*100,1) #Calculating free disk space in % and rounding the number to a single symbol after comma if ($FreeSpaceInPercents -lt 20) { #If the number is lower than 20 $message="ALERT!!! FREE DISK C SPACE IS EQUAL $FreeSpaceInPercents PERCENTS AT HOST $HostName ! Take some actions!" Write-Output $message $message | New-TelegramMessage -token $token -chatID $chatID -ErrorAction SilentlyContinue #Sending message to the Telegram chat #Deleting temporary files in "C:\Windows\Temp" folder (if that's impossible the exception is invoked) Invoke-Command -Session $session -ScriptBlock { $temp_files=Get-ChildItem -Path C:\Windows\Temp -Recurse -Force foreach ($temp_file in $temp_files) { try { #$_.Delete() - can't delete most of files because of that what operating system locked them Remove-Item $temp_file -ErrorAction SilentlyContinue Write-Output "File $temp_file was succesfully deleted!" } catch { Write-Output "File $temp_file is been using by operating system. It's impossilbe to delete!" } } } } Start-Sleep 120 } #} } } function New-TelegramMessage { [CmdletBinding(SupportsShouldProcess,ConfirmImpact='Medium')] Param ( [Parameter(Mandatory=$true)] [string]$token , [Parameter(Mandatory=$true)] [string]$chatID , [Parameter(Mandatory=$true,ValueFromPipeline)] [string]$message , [Parameter()] [string]$email_from , [Parameter()] [string]$email_to , [Parameter()] [string]$SmtpServer , [Parameter()] [string]$subject ) process { #1. Support of e-mail(check of input if it required) if (($email_from -ne $null) -and ($email_to -ne $null) -and ($SmtpServer -ne $null) -and ($subject -ne $null)) { Send-MailMessage -Body $message -From $email_from -To $email_to -SmtpServer $SmtpServer -Subject $subject } else { Write-Output "Some of the parameters of e-mail weren't set!" } #Confirmation if ($PSCmdlet.ShouldProcess("ShouldProcess?")) { Write-Output "Just warning! Some of the mail parameters might not be set in place - email_from,email_to,SmtpServer,subject" } #2.Sending of messages to the Telegram $URL="https://api.telegram.org/bot"+$token+"/sendMessage?chat_id="+$chatID+"&text="+$message #Creating the URL with the text of alert for bot account $URL_request= Invoke-WebRequest -Uri $URL #Sending the alert by using URL-request with generated URL Write-Output $URL_request } } function Set-CommfortRemoteDesktop { [CmdletBinding(SupportsShouldProcess)] Param ( [Parameter(Mandatory=$true,ValueFromPipelineByPropertyName)] [string]$ComputerName , [Parameter(Mandatory=$true)] [String]$Password , [Parameter(Mandatory=$true)] [String]$Username ) Invoke-Command -ComputerName $ComputerName -ScriptBlock { #Creating the path to the config of Commfort programm - main.ini -withing user path C:\Users\<username> $ComfortPath="C:\Users\$using:Username\AppData\Roaming\CommFort\Default\Config\Main.ini" #Invoking the "replace" method for changing of all values of attributes within the desktop paragraph. After that the document is directed to change its content (Get-Content $ComfortPath) -replace '^AccessMode=1$','AccessMode=2' -replace '^PasswordAccessMode=0$', "PasswordAccessMode=1" -replace "^Password=$", "Password=$using:Password" | Set-Content $ComfortPath #Checking done changes if ( ((Get-Content $ComfortPath) -ccontains 'AccessMode=2') -and ((Get-Content $ComfortPath) -ccontains 'PasswordAccessMode=1') -and ((Get-Content $ComfortPath) -ccontains "Password=$args")) { Write-Output "Config file of Commfort was succesfully changed!" } } } |