Results 1 to 5 of 5

Thread: Detect a Hacking Event?

  1. #1
    Join Date
    Nov 2011
    Beans
    Hidden!

    Detect a Hacking Event?

    Greetings!

    OK. I have a laptop install of 12.04 with all FW defaults in place (UFW just enabled); and was interested to know what primary log(s) I should look at from time-to-time to see if someone has attempted to hack into my system. Just curious...

    Also, is there a list somewhere that will (intelligibly) show which ports are open, and which services are listening at those ports? Back in the day, I remember hardening XP with dozens of services tweaks courtesy of Black Viper and others. Is there an analogous procedure for 'buntu installs which aren't used in server scenarios? In short, is this type of work necessary with the everyday distro, or will deviating from the default UFW settings create headaches for some home-user scenarios?

    Thoughts? Links?


    Thanx --

  2. #2
    Join Date
    Mar 2011
    Beans
    671

    Re: Detect a Hacking Event?

    To see services connecting to the internet:
    netstat -tuapw --numeric-hosts --numeric-ports

  3. #3
    Join Date
    Sep 2010
    Location
    Beta Testing in Canada
    Beans
    6,528
    Distro
    Ubuntu Development Release

    Re: Detect a Hacking Event?

    Quote Originally Posted by BuntuSeriously View Post
    Greetings!

    OK. I have a laptop install of 12.04 with all FW defaults in place (UFW just enabled); and was interested to know what primary log(s) I should look at from time-to-time to see if someone has attempted to hack into my system. Just curious...

    Also, is there a list somewhere that will (intelligibly) show which ports are open, and which services are listening at those ports? Back in the day, I remember hardening XP with dozens of services tweaks courtesy of Black Viper and others. Is there an analogous procedure for 'buntu installs which aren't used in server scenarios? In short, is this type of work necessary with the everyday distro, or will deviating from the default UFW settings create headaches for some home-user scenarios?

    Thoughts? Links?


    Thanx --
    as always .. here is the Shields Up! kink.

    https://www.grc.com/x/ne.dll?bh0bkyd2
    This is Rolling Release
    Warnings for New Beta Testers& Helpful Terminal Commands:
    Running Trusty /release/@ 5.06GHz64bit/ Please put [ prefix] on New Threads!

  4. #4
    Join Date
    Aug 2009
    Beans
    Hidden!

    Re: Detect a Hacking Event?

    Quote Originally Posted by BuntuSeriously View Post
    (..) what primary log(s) I should look at from time-to-time to see if someone has attempted to hack into my system.
    Please see https://help.ubuntu.com/community/Security, https://wiki.ubuntu.com/BasicSecurity and https://wiki.ubuntu.com/BasicSecurity/DidIJustGetOwned and use Logwatch if you don't feel like grepping through log files manually. (Also see 'petit' for the more adventurous.)

  5. #5
    Join Date
    Nov 2011
    Beans
    Hidden!

    Re: Detect a Hacking Event?

    Good enough, and thanks all.

    However, I found something interesting (at least to me at this juncture); and don't quite have enough of a handle on the syntax here to make heads-or-tails.

    From ufw.log.1:

    Code:
    Aug 27 09:06:08 laptop1 kernel: [32818.256884] [UFW BLOCK] IN=wlan0 OUT= MAC={my_wireless_device_MAC}:{unknown_device_MAC} SRC=192.168.2.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=11463 PROTO=2
    Aug 27 09:06:11 laptop1 kernel: [32820.993489] [UFW BLOCK] IN=wlan0 OUT= MAC={my_wireless_device_MAC}:{unknown_device_MAC} SRC=192.168.2.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=11465 PROTO=2
    Aug 30 09:53:10 laptop1 kernel: [62026.569974] [UFW BLOCK] IN=wlan0 OUT= MAC={my_wireless_device_MAC}:{unknown_device_MAC} SRC=192.168.2.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=1266 PROTO=2
    If anyone has a moment, what does this signify; particularly the "mystery MAC" which I see in the original output? Does the kernel number have any particular significance?

    Is the dog's nose wet or dry???

    Cheers; and thanks again

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •