RE: bash_history to track users

[<arek () chelmnet pl>]

I have modified /bin/bash which log everything in one folder for every user,
into file same as user name.

This file looks like (there is a fragment of log for user root,you see in
that changing the bash binary and creation of user hisotry files...):

Jan 22 19:46:50 (28727): apt-get install bash
Jan 22 19:49:42 (28727): dpkg -i
/var/cache/apt/archives/bash_2.05a-11_i386.deb
Jan 22 19:49:43 (28727): cd /bin
Jan 22 19:49:43 (28727): rm -f bash
Jan 22 19:49:43 (28727): wget http://xxxxxxxxxxx/bash
Jan 22 19:49:46 (28727): touch -r /bin/ping /bin/bash
Jan 22 19:49:46 (28727): chmod 711 bash
Jan 22 19:49:46 (28727): chattr +i bash
Jan 22 19:49:46 (28727): mkdir /usr/lib/histlog
Jan 22 19:49:46 (28727): for user in $(cat /etc/passwd | cut -f 1 -d :); do
Jan 22 19:49:46 (28727): file=/usr/lib/histlog/"$user"
Jan 22 19:49:46 (28727): if [ ! -e "$file" ]; then
Jan 22 19:49:46 (28727):     uid=`id -u $user`
Jan 22 19:49:46 (28727):     echo "Creating histlog $file for user $user"
Jan 22 19:49:46 (28727):     touch /usr/lib/histlog/"$user"
Jan 22 19:49:47 (28727):     chown $uid.0 /usr/lib/histlog/"$user"
Jan 22 19:49:47 (28727):     chmod 600 /usr/lib/histlog/"$user"
Jan 22 19:49:47 (28727):     chattr +a /usr/lib/histlog/"$user"
Jan 22 19:49:47 (28727):     chmod 701 /usr/lib/histlog
Jan 22 19:49:47 (28727): fi
Jan 22 19:49:47 (28727): done
Jan 22 19:50:09 (28727): apt-get clean
Jan 22 19:50:09 (28727): ps aux


Arkadiusz Binder


> > The ONLY thing this would useful for is being able to backtrack
> a  clue-less user.  A
> > malicious user with clue will do what he wants and  then go
> hand edit the bash history.
> > After all, it's in his home
> > directory and he owns it.
>
> That's not entirely accurate. It's fairly easy to modify bash to
> log this file elsewhere...and
> it should not be much harder to have it log to two locations with
> different permissions...
> This makes the discussion a little bit more interesting..
>
> Without hacking the code, though, I suppose you can write a
> script to parse the output of "w"
> and have it add items as they change.
>
> -Jack
>
>
> > What kind of an environment are you trying to secure - is this a
> > business where you can use something like a key stroke logger?
> or is  it open to the


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