RunAs without password prompt in C#

This alternative of RunAs utility allows to specify a password in command line.

It does same as standard runas.exe does. The only difference is you can specify your user password right in command line.

It can be used by System Administrators in batch jobs to run tasks under admin account.

Download RunAs Utility with password parameter in command line

Syntax:
runasuser [-u user] [-p password] [-d domain] someprogram.exe [params]

Here is full source code:

using System;
using System.Diagnostics;
using System.Security;

namespace RunAsUser
{
    class Program
    {
        static int Main(string[] args)
        {
            string username = "", password = "", domain = "", apppath = "", arguments = "";

            for( int i=0; i<args.Length; i++)
            {
                switch (args[i].ToLower())
                {
                    case "-u":
                        username = args[++i];
                        break;
                    case "-p":
                        password = args[++i];
                        break;
                    case "-d":
                        domain = args[++i];
                        break;
                    default:
                        if (apppath == "")
                            apppath = args[i];
                        else
                            arguments += args[i] + (i<args.Length?" ":"");
                        break;
                }
            }

            if (args.Length == 0 || apppath == "" )
            {
                Console.WriteLine("\nCommand line syntax:\nrunasuser [-u user] [-p password] [-d domain] someprogram.exe [params]\n");
                return 1;
            }
            Console.WriteLine(arguments);
            return RunAs(apppath, arguments, domain, username, password);

        }
        static int RunAs(string apppath, string arguments, string domain, string username, string password)
        {
            Process userProcess;
            try
            {
                userProcess = Process.Start( apppath, arguments, username, GetSecure(password), domain);
                while (!userProcess.HasExited) ;
                return userProcess.ExitCode;
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
            }
            return -1;
        }

        static SecureString GetSecure(string str)
        {
            SecureString SecureStr = new SecureString();
            foreach (char c in str)
            {
                SecureStr.AppendChar(c);
            }

            return SecureStr;
        }
    }
}

Microsoft DNS live sync to MySQL (VBScript)

Sometime its handy to have replica of DNS records in MySQL server. You can use this database to build some network diagrams, count computers etc.

In this example I use WMI to synchronize Microsoft DNS database with MySQL server.

This script makes complete snapshot of DNS database first. Then it set a handler for each event: Create/Modify/Delete.

Each event makes changes in MySQL database. This approach allow to have exact replica of DNS records in MySQL without visible delays.

Download dnsmonitor.vbs script

You can find source code below.
Don't forget to change NetBios name of your server and MySQL credentials on top.

'Netbios name of DNS server
Const SERVERNAME = "SERVER"

'MySQL credentials
Const host="localhost"
Const Db="system"
Const login= "user"
Const password="userpassword"

'MySQL connection options
Const MYDRIVER = "MySQL ODBC 5.1 Driver"
Const FLAG_BIG_PACKETS = 8 'Allow big results
Const FLAG_NO_PROMPT = 16 'Dont prompt anything
Const FLAG_DYNAMIC_CURSOR = 32 'Allow dynamic cursor
Const FLAG_COMPRESSED_PROTO = 2048 'Use compressed protocol
Const FLAG_NO_BIGINT = 16384 'Change bigint(8) to int(4)
Const FLAG_MULTI_STATEMENTS = 67108864 'Enable batch statements
Const FLAG_AUTO_RECONNECT = 4194304 'Auto reconnect

'ADODB connection
Dim conn

'Create global objects
Set oFSO = CreateObject("Scripting.FileSystemObject")
Set objWMIService = GetObject("winmgmts:{impersonationLevel=impersonate}\\" & SERVERNAME & "\root\MicrosoftDNS")
Set objSink = WScript.CreateObject("WBemScripting.SWbemSink","event_")
Set objShell = CreateObject("WScript.Shell")

'Exit if already running
Set oProcess = Nothing
If alreadyRunning() Then: WScript.Quit

If Not MySQLConnect() Then
WScript.Quit
Else
PrepareDatabase
End If

'Initialize mysql data once
MySQLExecute "DELETE FROM dns_cache"
Set dnsRecords = objWMIService.ExecQuery( "SELECT * FROM MicrosoftDNS_AType", "WQL", 48 )
For Each objRecord in dnsRecords
domain = objRecord.DomainName
name = Replace(objRecord.OwnerName,domain,"")
ip = objRecord.IPAddress 
ttl = objRecord.TTL
timestamp = objRecord.Timestamp
OnCreation domain,name,ip,timestamp,ttl
Next

'Set DNS event handler
objWMIService.ExecNotificationQueryAsync objSink, "Select * from __InstanceOperationEvent within 1 where TargetInstance ISA 'MicrosoftDNS_AType'"

'Infinite loop
Do
WScript.Sleep 1000
Loop

'Events handler
Sub event_OnObjectReady( objEvent, objContext )
With objEvent
domain = objEvent.TargetInstance.DomainName
name = Replace(objEvent.TargetInstance.OwnerName,domain,"")
ip = objEvent.TargetInstance.IPAddress 
ttl = objEvent.TargetInstance.TTL
timestamp = objEvent.TargetInstance.timestamp
if name <> "" Then
Select Case .Path_.Class
Case "__InstanceModificationEvent"
OnModify domain,name,ip,timestamp,ttl
Case "__InstanceCreationEvent"
OnCreation domain,name,ip,timestamp,ttl
Case "__InstanceDeletionEvent"
OnDeletion domain,name,ip
End Select
End If
End With
End Sub

'Handler for modify event
Sub OnModify( domain, name,ip,timestamp,ttl )
update = "domainname='" & domain & "',hostname='" & name & "',ipaddress=inet_aton('" & ip & "')," & _ 
"refreshon=IF(" & timestamp & "=0,Null,'1601-01-01 00:00') + INTERVAL " & timestamp & " HOUR,ttl=" & ttl
MySQLExecute "INSERT INTO dns_cache SET " & update & " ON DUPLICATE KEY UPDATE " & update
End Sub

'Handler for create event
Sub OnCreation( domain, name,ip,timestamp,ttl )
update = "domainname='" & domain & "',hostname='" & name & "',ipaddress=inet_aton('" & ip & "')," & _
"refreshon=IF(" & timestamp & "=0,Null,'1601-01-01 00:00') + INTERVAL " & timestamp & " HOUR,ttl=" & ttl
MySQLExecute "INSERT INTO dns_cache SET " & update & " ON DUPLICATE KEY UPDATE " & update 
End Sub

'Handler for delete event
Sub OnDeletion( domain, name,ip )
MySQLExecute "DELETE FROM dns_cache WHERE hostname='" & name & "' AND ipaddress=inet_aton('" & ip & "') AND domainname='" & domain & "'"
End Sub

'Create database and tables if it wasn't done
Function PrepareDatabase
CreateDatabase = False
On Error Resume Next
MySQLExecute "CREATE DATABASE IF NOT EXISTS " & db & " CHARACTER SET utf8 COLLATE utf8_general_ci"
On Error Goto 0
MySQLExecute "USE " & db
MySQLExecute "CREATE TABLE IF NOT EXISTS dns_cache(" & _
"hostname VARCHAR(255) NOT NULL," & _
"domainname VARCHAR(255) NOT NULL," & _
"ipaddress INT(11) UNSIGNED NOT NULL," & _
"refreshon DATETIME DEFAULT NULL," & _
"ttl INT(11) NOT NULL DEFAULT 0," & _
"PRIMARY KEY (ipaddress, hostname, domainname)," & _
"INDEX IX_dns_cache_deadline (refreshon)," & _
"INDEX IX_dns_cache_domainname (domainname)," & _
"INDEX IX_dns_cache_ipaddress (ipaddress)," & _
"INDEX IX_dns_cache_name (hostname)," & _
"INDEX IX_dns_cache_ttl (ttl)" & _
") " & _
"ENGINE = INNODB " & _
"AVG_ROW_LENGTH = 68 " & _
"CHARACTER SET utf8 " & _
"COLLATE utf8_general_ci;"
If Err.Number <> 0 Then: CreateDatabase = True
End Function

Function alreadyRunning()
alreadyRunning = False
wscrCount = ProcessCount( "%wscript%" & WScript.ScriptName & "%" )
cscrCount = ProcessCount( "%cscript%" & WScript.ScriptName & "%" )
If wscrCount > 1 or cscrCount > 1 Then:alreadyRunning = True
End Function

Public Function ProcessCount(likestr)
Set objWMI = GetObject("winmgmts:{impersonationLevel=impersonate}\\.\root\cimv2")
Set colItems = objWMI.ExecQuery("SELECT Name,CommandLine FROM Win32_Process WHERE CommandLine Like '" & likestr & "'")
ProcessCount = colItems.Count
End Function 

'MySQL routines
Function MySQLExecute( cmd )
On Error Resume Next
Set rst = conn.Execute( cmd )
If conn.Errors.Count > 0 Then
If conn.Errors(conn.Errors.Count-1).NativeError = 2006 Then 
conn.Errors.Clear
If InitConnection() Then
Set rst = conn.Execute( cmd )
End If
End If 
End If
If rst.State = 1 And Err.Number = 0 Then
Set MySQLExecute = rst
Else
Set MySQLExecute = conn.Execute( "SELECT Null LIMIT 0" )
End If
On Error Goto 0
End Function

Function MySQLConnect
Set conn = CreateObject("ADODB.Connection")
MySQLConnect = False
On Error Resume next
conn.ConnectionString = "DRIVER={" & MYDRIVER & "};" & _
"SERVER=" & host & ";" & _
"UID=" & login & ";" & _
"PWD=" & password & ";" & _
"OPTION=" & (FLAG_BIG_PACKETS + FLAG_COMPRESSED_PROTO + FLAG_NO_BIGINT + FLAG_MULTI_STATEMENTS)
conn.ConnectionTimeout = 3
conn.Open
If Err.Number = -2147467259 Then
MsgBox "MyODBC isn't installed. Can't connect to MySQL!"
Exit Function
End If
If Err.Number <> 0 Then
MsgBox err.description
Exit Function
End If
MySQLConnect = True
On Error GoTo 0
End Function

Sub MySQLDisconnect
conn.Close
Set conn = Nothing
End Sub

USB device insert/remove monitoring with VBScript

Some time ago I got an Android Phone. To manage it from PC I installed MyPhoneExplorer. 
Thats great software but it doesn't have one vital feature: reconnect automatically when phone is connected via USB. On other hand it have such an option as "Connect on start".
So my idea was to write some program/script to kill MyPhoneExplorer's process on disconnect and start it on connect.
This script just sitting and watching when "Android ADB Interface" device get connected or disconnected via USB executing corresponding action on each event.

Download VBS script 

Const DEVICENAME = "Android ADB Interface"
Const EXENAME = "MyPhoneExplorer.exe"
Dim lastOperation
Set objWMIService = GetObject("winmgmts:{impersonationLevel=impersonate}\\.\root\cimv2")

'Exit if already running
If alreadyRunning() Then: WScript.Quit

Set objSink = WScript.CreateObject("WBemScripting.SWbemSink","event_")
Set objShell = CreateObject("WScript.Shell")
Set deviceIDs = CreateObject("Scripting.Dictionary")

'Set event hook
objWMIService.ExecNotificationQueryAsync objSink, "Select * from __InstanceOperationEvent within 1 where TargetInstance ISA 'Win32_PnPEntity'"

'Get device IDs by name
EnumerateDevices DEVICENAME
objShell.Popup "USB monitoring started",2
'Infinite loop
Do
 WScript.Sleep 1000
Loop

'USB insert/remove hook procedure
Sub event_OnObjectReady( objEvent, objContext )
 With objEvent
  If deviceIDs.Exists(.TargetInstance.DeviceId) Then
   Select Case .Path_.Class
    Case "__InstanceCreationEvent"
     If lastOperation <> "Insert" Then
      lastOperation = "Insert"
      OnInsert
     End If
      
    Case "__InstanceDeletionEvent"
     If lastOperation <> "Remove" Then
      lastOperation = "Remove"
      OnRemove
     End If
    End Select
  End If
 End With
End Sub

Sub OnInsert
 objShell.Run EXENAME,1,0
End Sub

Sub OnRemove
 objShell.Run "taskkill /f /im " & EXENAME,0,0
End Sub

Sub EnumerateDevices(name)
 Set objDevices = objWMIService.ExecQuery("SELECT DeviceId FROM Win32_PnPSignedDriver WHERE Description='" & name & "'")
 For Each dev in objDevices
  deviceId = dev.DeviceId
  If Not deviceIDs.Exists(deviceId) Then
   deviceIDs.Add deviceId, deviceId
  End If
  d = d + 1
 Next
End Sub

Function alreadyRunning()
 alreadyRunning = False
 wscrCount = ProcessCount( "%wscript%" & WScript.ScriptName & "%" )
 cscrCount = ProcessCount( "%cscript%" & WScript.ScriptName & "%" )
 If  wscrCount > 1 or cscrCount > 1 Then:alreadyRunning = True
End Function

Public Function ProcessCount(likestr)
 Set colItems = objWMIService.ExecQuery("SELECT Name,CommandLine FROM Win32_Process WHERE CommandLine Like '" & likestr & "'")
 ProcessCount = colItems.Count
End Function