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    Had my pfSense been compromised?

    Scheduled Pinned Locked Moved Firewalling
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    • B
      bchan @johnpoz
      last edited by

      @johnpoz
      Nothing logged around that time (05:29):
      Screenshot_2019-10-11 asus kleaders - Diagnostics Backup Restore Config History.png

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      • johnpozJ
        johnpoz LAYER 8 Global Moderator
        last edited by

        look in your full rule set for what that ID number matches up with.

        An intelligent man is sometimes forced to be drunk to spend time with his fools
        If you get confused: Listen to the Music Play
        Please don't Chat/PM me for help, unless mod related
        SG-4860 24.11 | Lab VMs 2.7.2, 24.11

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        • B
          bchan @JeGr
          last edited by

          @JeGr

          whois 103.240.140.10
          inetnum: 103.240.140.1 - 103.240.142.255
          netname: CTCL-HK
          descr: ClearDDoS Technologies
          country: HK

          It sounds like a web security company.

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          • JeGrJ
            JeGr LAYER 8 Moderator
            last edited by

            I'm talking about your alias. Not the IP.

            Don't forget to upvote ๐Ÿ‘ those who kindly offered their time and brainpower to help you!

            If you're interested, I'm available to discuss details of German-speaking paid support (for companies) if needed.

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            • B
              bchan @JeGr
              last edited by

              @JeGr

              I have checked the table values for this alias and they all resolve correctly to 192.168.x.x

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              • JeGrJ
                JeGr LAYER 8 Moderator
                last edited by

                @bchan said in Had my pfSense been compromised?:

                all resolve correctly to 192.168.x.x

                LAPTOP-1CGD66U4 resolves to 192.168.x.x? Even on pfsense itself? Its resolvers?

                Don't forget to upvote ๐Ÿ‘ those who kindly offered their time and brainpower to help you!

                If you're interested, I'm available to discuss details of German-speaking paid support (for companies) if needed.

                B 1 Reply Last reply Reply Quote 0
                • B
                  bchan @JeGr
                  last edited by

                  @JeGr
                  Screenshot_2019-10-11 asus kleaders - Diagnostics Tables.png

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                  • B
                    bchan @johnpoz
                    last edited by

                    @johnpoz said in Had my pfSense been compromised?:

                    pfctl -vvsr

                    pfctl -vvsr | grep 4294967295
                    return nothing.

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                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator
                      last edited by

                      Then the rule was deleted, make sure your grep is working by using a ID in your command that you see when just looking at the output.

                      Are you currently seeing logs for this?

                      An intelligent man is sometimes forced to be drunk to spend time with his fools
                      If you get confused: Listen to the Music Play
                      Please don't Chat/PM me for help, unless mod related
                      SG-4860 24.11 | Lab VMs 2.7.2, 24.11

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                      • B
                        bchan @johnpoz
                        last edited by

                        @johnpoz said in Had my pfSense been compromised?:

                        Then the rule was deleted, make sure your grep is working by using a ID in your command that you see when just looking at the output.

                        Are you currently seeing logs for this?

                        grep works for other id e.g. the teamviewer logger.
                        I have 2 WANs for months. This incident was the first time I saw incoming traffic to WAN2 and were logged.
                        As you can see from my rules, I don't have anything that will log incoming traffic for WAN2.

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                        • jimpJ
                          jimp Rebel Alliance Developer Netgate
                          last edited by

                          Do you have UPnP enabled? Do you have it set to use WAN2, and to log connections?

                          That's the most likely explanation.

                          Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

                          Need help fast? Netgate Global Support!

                          Do not Chat/PM for help!

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                          • johnpozJ
                            johnpoz LAYER 8 Global Moderator
                            last edited by

                            That would be my guess as well... You might be able to glean a bit more info by looking at the raw log in output.

                            An intelligent man is sometimes forced to be drunk to spend time with his fools
                            If you get confused: Listen to the Music Play
                            Please don't Chat/PM me for help, unless mod related
                            SG-4860 24.11 | Lab VMs 2.7.2, 24.11

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                            • jimpJ
                              jimp Rebel Alliance Developer Netgate
                              last edited by

                              When I manually trigger something like that (for example, open Deluge, go into settings, and trigger a port test), I get a similar log message with a random-ish ID.

                              Since the UPnP rules don't have a description, and have random IDs, and are probably short-lived, they wouldn't have a visible description in the logs even if you caught them when they were active.

                              Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

                              Need help fast? Netgate Global Support!

                              Do not Chat/PM for help!

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                              • B
                                bchan @jimp
                                last edited by bchan

                                @jimp said in Had my pfSense been compromised?:

                                Do you have UPnP enabled?

                                No I have not enabled UPnP.
                                Screenshot_20191012-105227.png

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                                • johnpozJ
                                  johnpoz LAYER 8 Global Moderator
                                  last edited by johnpoz

                                  That doesn't actually mean its not running - that is a wiget that can be edited to not show specific services.

                                  An intelligent man is sometimes forced to be drunk to spend time with his fools
                                  If you get confused: Listen to the Music Play
                                  Please don't Chat/PM me for help, unless mod related
                                  SG-4860 24.11 | Lab VMs 2.7.2, 24.11

                                  B 1 Reply Last reply Reply Quote 0
                                  • B
                                    bchan @johnpoz
                                    last edited by

                                    @johnpoz
                                    UPnP is not running:
                                    Screenshot_20191012-184544.png

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                                    • H
                                      hulleyrob @bchan
                                      last edited by

                                      @bchan hey dude, im interested in this as i saw exactly the same thing this morning, about 5 low ports opened by upnp and incoming UDP traffic however i now have no idea what opened them up. Do you have a PS4 on the network as its the only thing i can think that would do this?

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                                      • B
                                        bchan @hulleyrob
                                        last edited by

                                        @hulleyrob said in Had my pfSense been compromised?:

                                        Do you have a PS4 on the network as its the only thing i can think that would do this?

                                        I am running a small office and have no PS4 and have not enabled any uPnP.

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                                        • H
                                          hulleyrob @bchan
                                          last edited by

                                          @bchan ah ok i do have upnp enabled but have the same problem you are and cannot see after the even which computer opened up the ports just that there was a rule and its been deleted.

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                                          • johnpozJ
                                            johnpoz LAYER 8 Global Moderator
                                            last edited by johnpoz

                                            Which is exactly how upnp would work.. So it creates a rule to allow whatever was requested.. It then would delete that rule when request is removed.. So in the logs you would see just the rule ID..

                                            Look with sockstat do you see miniupnpd running? Vs just the status, could be process that didn't shutdown or something.. Also look to see if the ports used are listening 1900, and I think maybe even 2189 or 5351 could be used.

                                            here I enabled it for test

                                            [2.4.4-RELEASE][admin@sg4860.local.lan]/root: sockstat | grep miniupnpd
                                            root     miniupnpd  18015 4  tcp6   *:2189                *:*
                                            root     miniupnpd  18015 5  dgram  -> /var/run/logpriv
                                            root     miniupnpd  18015 6  tcp4   *:2189                *:*
                                            root     miniupnpd  18015 7  udp4   *:1900                *:*
                                            root     miniupnpd  18015 8  udp6   *:1900                *:*
                                            root     miniupnpd  18015 9  udp4   192.168.9.253:1920    *:*
                                            root     miniupnpd  18015 10 udp6   *:44710               *:*
                                            root     miniupnpd  18015 12 stream /var/run/php-fpm.socket
                                            root     miniupnpd  18015 13 stream /var/run/php-fpm.socket
                                            root     miniupnpd  18015 14 udp4   192.168.9.253:5351    *:*
                                            root     miniupnpd  18015 16 udp6   *:5351                *:*
                                            

                                            Then turned it off

                                            [2.4.4-RELEASE][admin@sg4860.local.lan]/root: sockstat | grep miniupnpd
                                            [2.4.4-RELEASE][admin@sg4860.local.lan]/root: 
                                            

                                            An intelligent man is sometimes forced to be drunk to spend time with his fools
                                            If you get confused: Listen to the Music Play
                                            Please don't Chat/PM me for help, unless mod related
                                            SG-4860 24.11 | Lab VMs 2.7.2, 24.11

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