Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Script for Screenshots

Posted on 2011-03-18
11
Medium Priority
?
1,588 Views
Last Modified: 2012-05-11
Can someone please help me in writing a script which takes screenshots of a remote system. Remote systems can any windows box including Windows XP, 7, 2003 or 2008.
0
Comment
Question by:Dhiraj Mutha
11 Comments
 
LVL 13

Expert Comment

by:soostibi
ID: 35169313
The idea came from Alexandair and Shay ( http://www.vistax64.com/powershell/124315-take-screenshot-via-script.html ):
$screen = [System.Windows.Forms.Screen]::PrimaryScreen.Bounds
[reflection.assembly]::LoadWithPartialName("System.Drawing") > $null
$Bitmap = new-object System.Drawing.Bitmap ($screen.width),($screen.height)
$Size = New-object System.Drawing.Size ($screen.width),($screen.height)
$FromImage = [System.Drawing.Graphics]::FromImage($Bitmap)
$FromImage.copyfromscreen(0,0,0,0, $Size,([System.Drawing.CopyPixelOperation]::SourceCopy))
$Bitmap.Save("C:\ee\PrintScreen.png", ([system.drawing.imaging.imageformat]::png))

Open in new window

0
 
LVL 13

Expert Comment

by:soostibi
ID: 35169321
And to do this remotely of course you have to call this script via PowerShell remoting:

Invoke-Command -ComputerName PC1 -ScriptBlock $scriptabove
0
 
LVL 13

Expert Comment

by:soostibi
ID: 35169408
Sorry, I made some mistakes in the previous comments. So the right solution is this:
$script = {
Add-Type -AssemblyName system.drawing
Add-Type -AssemblyName System.Windows.Forms
$screen = [System.Windows.Forms.Screen]::PrimaryScreen.Bounds
$Bitmap = new-object System.Drawing.Bitmap ($screen.width),($screen.height)
$Size = New-object System.Drawing.Size ($screen.width),($screen.height)
$FromImage = [System.Drawing.Graphics]::FromImage($Bitmap)
$FromImage.copyfromscreen(0,0,0,0, $Size,([System.Drawing.CopyPixelOperation]::SourceCopy))
$Bitmap.Save("C:\ee\PrintScreen2.png", ([system.drawing.imaging.imageformat]::png))
}

Invoke-Command -ComputerName PC1 -ScriptBlock $script

Open in new window

0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 
LVL 13

Expert Comment

by:soostibi
ID: 35169433
Well, it seems, that remotely it could not run... Locally it works fine if it runs under a normal user context, but it does not, when it's initiated from a background process. So we have to found a workaround.
0
 
LVL 1

Expert Comment

by:clietech
ID: 35173054
You can use poison ivy or metasploit with a reverce tcp connection you can fall into the shell and do what you want to do take screenshot, run a task etc on a remote computer.
You can develop your ruby scripts to use with a metasploit framework or you can use the scripts in the following link

http://www.metasploit.com/redmine/issues/3255 
0
 
LVL 13

Expert Comment

by:soostibi
ID: 35173306
To run my PowerShell script remotely you may use PSExec, I'm still exploring this possibility.
0
 
LVL 14

Author Comment

by:Dhiraj Mutha
ID: 35174266
I dont want to use any third party application. An smal .exe woluld be fine like "capn.exe", but capn doesn't take screenshots of windows 7. Soostibi: i think you script is good, we can work on that, please let me know the final script.
0
 
LVL 13

Expert Comment

by:soostibi
ID: 35194504
Unfortunately I can not make it work.

I have this screenshot.BAT file:
powershell.exe -noninteractive -command "&{Add-Type -AssemblyName system.drawing; Add-Type -AssemblyName System.Windows.Forms; $screen = [System.Windows.Forms.Screen]::PrimaryScreen.Bounds; $Bitmap = new-object System.Drawing.Bitmap ($screen.width),($screen.height); $Size = New-object System.Drawing.Size ($screen.width),($screen.height); $FromImage = [System.Drawing.Graphics]::FromImage($Bitmap); $FromImage.copyfromscreen(0,0,0,0, $Size,([System.Drawing.CopyPixelOperation]::SourceCopy)) ; $Bitmap.Save('c:\Remote1.png', ([system.drawing.imaging.imageformat]::png)); Copy-Item -Path C:\remote1.png -Destination '\\DC\c$'}"

And I call PSExec like this from machine DC to take a screenshot from MEMBER1:
C:\PSTools\PsExec.exe \\member1 -i -h -c C:\work\screenshot.bat

It takes the picture, but the png file is actually empty. So PSExec is not interacting with the user environment as it should...
0
 
LVL 10

Expert Comment

by:wls3
ID: 35195102
I am not sure this will work.  Typically you will need to be associated with a particular user session to take a screenshot.  Additionally, the modifications made to the kernel after Vista/2008/7 dissociate the session from the traditional model.  I suspect, even if you find a way to remote to a particular machine, you will not be able to actually acquire the image of a desktop without first initiating a desktop session.  Lastly, since the interactive session option has been nullified in the new kernel, it doesn't seem there would be a workaround without using terminal services or RDP.
0
 
LVL 14

Accepted Solution

by:
Dhiraj Mutha earned 0 total points
ID: 35212702
Then I think this doesn't resolve my issue....
0
 
LVL 14

Author Closing Comment

by:Dhiraj Mutha
ID: 35357082
This did not resolved my issue.
0

Featured Post

Creating Active Directory Users from a Text File

If your organization has a need to mass-create AD user accounts, watch this video to see how its done without the need for scripting or other unnecessary complexities.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Windows 10 came with  a lot of built in applications, Some organisations leave them there, some will control them using GPO's. This Article is useful for those who do not want to have any applications in their image (example:me).
In this post, I will showcase the steps for how to create groups in Office 365. Office 365 groups allow for ease of flexibility and collaboration between staff members.
Loops Section Overview
Screencast - Getting to Know the Pipeline

916 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question