|Gordon Dexter on 13 Aug 2010 21:00:23 -0700|
JP Vossen wrote:
I know I'm not the best shell scripter but this one seems to work. Watch out though, I once managed to accidentally delete the contents of /bin on one of the campus servers with a shell script I wrote that was supposed to delete old webcam images. :-)Date: Tue, 13 Jul 2010 22:01:52 -0400 From: Gordon Dexter<firstname.lastname@example.org> Subject: [PLUG] Laptop recovery--useful data to collect? I'm setting up my Eee 901 netbook with a 'phone-home' type shell script that will collect various data in the event that it is stolen. I used to have Adeona but I found that DHT is no longer working, and that didn't get webcam shots anyways, so I thought I'd roll my own. The script will check for a certain subdomain that I will only create when the laptop is stolen, and then make a tarball with info that might help me find the thief and get my laptop back. So far I'm getting *webcam frame grabs using streamer *screen captures with scrot *wireless network scan (iwlist) *IP address and routing info of course It's all uploaded to an https webdav server in my living room. Does anybody have any further suggestions as to information to collect that might lead to the laptop's recovery in case of theft? Anything else the script should do that might be useful? I know this probably won't do much in most cases, since professional thieves will just format it and resell it, and it might still be hard to recover the laptop even with all this info, but this is in part a theoretical exercise/just for fun. Ideas?Topical:* http://ask.slashdot.org/story/10/07/12/2253218/Retrieving-a-Stolen-Laptop-By-IP-Address-Alone* http://ask.slashdot.org/comments.pl?sid=1716946&cid=32882378 * http://preyproject.com/ I'd be interested to see the script when you are finished. Later,JP
############# #!/bin/bash #GPL software by Gordon Dexter if anybody cares to use it TARGET=https://www.mydomain.com/webdav/ DAV_LOGIN=phonehome:shhhhh ALERT=laptopstolen.mydomain.com #The host must be created to activate the tracker host $ALERT || exit #Create working dir TMPDIR=/tmp/phonehome WORKDIR=$TMPDIR/snap_`date +%F_%R` mkdir -p $WORKDIR#Save previous camera state and enable it--this is Eee PC specific power management
OLDCAM=`cat /sys/devices/platform/eeepc/camera` echo 1 > /sys/devices/platform/eeepc/camera #Take snapshot streamer -c /dev/video0 -o $WORKDIR/webcam.jpeg #Restore camera state -- again Eee PC specific echo $OLDCAM > /sys/devices/platform/eeepc/camera #Take screenshot scrot $WORKDIR/screencap.png #List nearby wireless networks iwlist ra0 scan > $WORKDIR/iwlist ifconfig > $WORKDIR/ifconfig route -n >> $WORKDIR/route TARBALL=$TMPDIR/message`date +%s`.tbz2 tar -cjvf $TARBALL $TMPDIR/snap_* #Attempt upload curl -u $DAV_LOGIN -T $TARBALL $TARGET | grep "has been created" #If upload succeeded delete snap directories#If it didn't work (e.g. no internet) it will leave them there until it manages to upload them
WORKED=$? if [ $WORKED ] then rm -rf $TMPDIR/snap_* fi #Delete tarball rm $TARBALL ##################I just put it in cron to be run every ten minutes or so. It should be noted that it doesn't actually get an external IP, so if it's behind NAT I'll have to get the IP from the server logs. I made that choice since I occasionally take this laptop to work and don't care to raise any red flags (I originally intended to have it run all the time, perhaps more frequently when it was activated).
--Gordon ___________________________________________________________________________ Philadelphia Linux Users Group -- http://www.phillylinux.org Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug