Metasploit provide some commands to extend the usage of meterpreter. We will describe here under the usage of webcam, webcam_list, webcam_snap and record_mic.
First of all you require a valid meterpreter session on a Windows box to use these extensions.
- webcam_list :
This stdapi command provide you a list of all webcams on the target system. Each webcam will have an index number.
- webcam_snap :
This stdapi command take a snapshot for the specified webcam, by default number 1 and will try without argument precision to open the saved snapshot.
webcam_snap could have arguments :
-h : to display the help banner.
-i <opt> : The index number of the webcam to use.
-p <opt> : The JPEG image file path. By default $HOME/[randomname].jpeg
-q <opt> : The JPEG image quality, by default ’50’.
-v <opt> : Automatically view the JPEG image, by default ‘true’.
- record_mic
This stdapi command record audio, by default 1 second, from the default microphone and will try without argument precision to play the captured audio wav file.
record_mic could have arguments :
-h : to display the help banner.
-d <opt> : Number of seconds to record, by default 1 second (useless).
-f <opt> : The wav file path. By default $HOME/[randomname].wav
-p <opt> : Automatically play the captured audio, by default ‘true’.
- (bg)run webcam
Same as the stdapi webcam_snap command, but with loop delay interval to refresh the displayed jpeg snap. A refreshed HTML file, “webcam.htm”, will provide you each x milliseconds a new snapshot. You can invoke the webcam script with run or bgrun meterpreter command.
The possible arguments to begin a recording are :
-h : to display the help banner.
-d <opt> : Loop delay interval in milliseconds, by default 1000.
-f : Just grab a single frame.
-g : Send to the GUI instead of writing file.
-i <opt> : The index of the webcam to use, by default 1.
-l : Keep capturing in a loop, by default (useless).
-p <opt> : The path to the folder images will be saved in, by default current working directory.
-q <opt> : The JPEG quality, by default ’50’.
To stop the webcam recording, just type the following command :