ML
    • Recent
    • Categories
    • Tags
    • Popular
    • Users
    • Groups
    • Register
    • Login

    Solved Wazuh - operational and can add agents - now what

    IT Discussion
    wazuh windows log management alerts
    3
    23
    3.2k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • DustinB3403D
      DustinB3403 @IRJ
      last edited by

      @IRJ How are rulesets installed?

      IRJI 1 Reply Last reply Reply Quote 0
      • IRJI
        IRJ
        last edited by IRJ

        None of those rules displayed are a true correlations like you are looking to do.

        So you need to go to /var/ossec/etc/rules and create a new file called smb_security_correlations.xml

        Note: I like to specify rule ranges and makes notes in my custom rule files

        <!-- ################################### -->
<!-- # SMB Security Correlations                #  --> 
<!-- ################################### -->

<!-- ################################### -->
<!-- # Rule numbers 100100 - 100150    #  --> 
<!-- ################################### -->


<group name="smb_security_correlations,">

<rule id="100100" level="8" frequency="6" timeframe="360">
  <if_sid>13102</if_sid>
  <description>Multiple Failed Attempts on SMB Share</description>
  <group>smb_security_correlations,</group>
</rule>


</group>

        This will create a level 8 alert if there are 5 failed attempts within a 90 second time frame.

        1 Reply Last reply Reply Quote 1
        • IRJI
          IRJ @DustinB3403
          last edited by

          @DustinB3403 said in Wazuh - operational and can add agents - now what:

          @IRJ How are rulesets installed?

          They are in your /var/ossec/rules directory. You should not change those rules ever.

          Any new rules, you will need to put in /var/ossec/etc/rules like I explained in previous post.

          1 Reply Last reply Reply Quote 1
          • DustinB3403D
            DustinB3403
            last edited by

            Okay, so I've added that file to /var/ossec/etc/rules and entered what you provided (probably should verify that for my own sanity). Do I need to "enable" it or refresh the rules?

            IRJI 1 Reply Last reply Reply Quote 0
            • IRJI
              IRJ @DustinB3403
              last edited by

              @DustinB3403 said in Wazuh - operational and can add agents - now what:

              Okay, so I've added that file to /var/ossec/etc/rules and entered what you provided (probably should verify that for my own sanity). Do I need to "enable" it or refresh the rules?

              You need to restart the wazuh manager and agents

              You can restart agents from the manager by using this command /var/ossec/bin/agent_control -R -a

              You can restart wazuh-manager by using systemctl restart wazuh-manager

              DustinB3403D 1 Reply Last reply Reply Quote 0
              • DustinB3403D
                DustinB3403 @IRJ
                last edited by

                @IRJ so I can't start the wazuh-manager because ossec-analysisd: ERROR: Invalid option 'frequency' for rule '100100'.

                I'll have to look into that in a bit, have a meeting to run too.

                IRJI 2 Replies Last reply Reply Quote 0
                • IRJI
                  IRJ @DustinB3403
                  last edited by

                  @DustinB3403 said in Wazuh - operational and can add agents - now what:

                  @IRJ so I can't start the wazuh-manager because ossec-analysisd: ERROR: Invalid option 'frequency' for rule '100100'.

                  I'll have to look into that in a bit, have a meeting to run too.

                  2-9999 are allowed values

                  https://documentation.wazuh.com/3.10/user-manual/ruleset/ruleset-xml-syntax/rules.html

                  1 Reply Last reply Reply Quote 0
                  • IRJI
                    IRJ @DustinB3403
                    last edited by IRJ

                    @DustinB3403 said in Wazuh - operational and can add agents - now what:

                    @IRJ so I can't start the wazuh-manager because ossec-analysisd: ERROR: Invalid option 'frequency' for rule '100100'.

                    I'll have to look into that in a bit, have a meeting to run too.

                    I made an error writing the rule. frequency and timeframe go up next to rule_id and level . I edited my previous post and fixed it

                    Just like rule 5703 here https://github.com/wazuh/wazuh-ruleset/blob/master/rules/0095-sshd_rules.xml

                    DustinB3403D 1 Reply Last reply Reply Quote 0
                    • DustinB3403D
                      DustinB3403 @IRJ
                      last edited by

                      @IRJ

                       Starting Wazuh manager...
 env[11414]: 2019/12/11 13:57:27 ossec-analysisd: CRITICAL: rules_list: Signature ID '13202' not found. Invalid 'if_sid'.
 env[11414]: ossec-analysisd: Configuration error. Exiting
 systemd[1]: wazuh-manager.service: Control process exited, code=exited status=1
 systemd[1]: wazuh-manager.service: Failed with result 'exit-code'.
 systemd[1]: Failed to start Wazuh manager.
                      IRJI 1 Reply Last reply Reply Quote 0
                      • DashrenderD
                        Dashrender
                        last edited by

                        13202 > 9999,

                        @IRJ said in Wazuh - operational and can add agents - now what:

                        2-9999 are allowed values

                        https://documentation.wazuh.com/3.10/user-manual/ruleset/ruleset-xml-syntax/rules.html

                        IRJI DustinB3403D 2 Replies Last reply Reply Quote 0
                        • IRJI
                          IRJ @Dashrender
                          last edited by

                          @Dashrender said in Wazuh - operational and can add agents - now what:

                          13202 > 9999,

                          @IRJ said in Wazuh - operational and can add agents - now what:

                          2-9999 are allowed values

                          https://documentation.wazuh.com/3.10/user-manual/ruleset/ruleset-xml-syntax/rules.html

                          13202 is the rule number not frequency or timeframe

                          1 Reply Last reply Reply Quote 0
                          • IRJI
                            IRJ @DustinB3403
                            last edited by

                            @DustinB3403 said in Wazuh - operational and can add agents - now what:

                            @IRJ

                            Starting Wazuh manager...
                            env[11414]: 2019/12/11 13:57:27 ossec-analysisd: CRITICAL: rules_list: Signature ID '13202' not found. Invalid 'if_sid'.
                            env[11414]: ossec-analysisd: Configuration error. Exiting
                            systemd[1]: wazuh-manager.service: Control process exited, code=exited status=1
                            systemd[1]: wazuh-manager.service: Failed with result 'exit-code'.
                            systemd[1]: Failed to start Wazuh manager.

                            Does rule 13202 not exist? you should be able to find it in your rules folder under 0200-smbd_rules.xml file

                            1 Reply Last reply Reply Quote 0
                            • DustinB3403D
                              DustinB3403 @Dashrender
                              last edited by

                              @Dashrender

                              Starting Wazuh manager...
 env[11593]: 2019/12/11 15:11:32 ossec-analysisd: CRITICAL: rules_list: Signature ID '9999' not found. Invalid 'if_sid'.
 env[11593]: ossec-analysisd: Configuration error. Exiting
 systemd[1]: wazuh-manager.service: Control process exited, code=exited status=1
 systemd[1]: wazuh-manager.service: Failed with result 'exit-code'.
 systemd[1]: Failed to start Wazuh manager.
                              IRJI 1 Reply Last reply Reply Quote 0
                              • IRJI
                                IRJ @DustinB3403
                                last edited by

                                @DustinB3403 said in Wazuh - operational and can add agents - now what:

                                @Dashrender

                                Starting Wazuh manager...
 env[11593]: 2019/12/11 15:11:32 ossec-analysisd: CRITICAL: rules_list: Signature ID '9999' not found. Invalid 'if_sid'.
 env[11593]: ossec-analysisd: Configuration error. Exiting
 systemd[1]: wazuh-manager.service: Control process exited, code=exited status=1
 systemd[1]: wazuh-manager.service: Failed with result 'exit-code'.
 systemd[1]: Failed to start Wazuh manager.

                                Oh I made a typo! Its supposed to be 13102

                                1 Reply Last reply Reply Quote 0
                                • IRJI
                                  IRJ
                                  last edited by IRJ

                                  @DustinB3403

                                  This is how you verify rule ID numbers

                                  c2826081-0d96-4382-a777-fa5644cf47e9-image.png

                                  Then you open the rule file

                                  bf7fbc92-da9a-4ee0-b147-9baee6dd8646-image.png

                                  1 Reply Last reply Reply Quote 1
                                  • DustinB3403D
                                    DustinB3403
                                    last edited by

                                    @IRJ so a lot of this works out of the box, one question I have is how the heck do I get the details of specific events.

                                    In the below I specifically failed a login attempt a few times, How can I find out what client was attempting to login to this server and failed?

                                    chrome_43H3sn69pw.png

                                    IRJI 1 Reply Last reply Reply Quote 0
                                    • DustinB3403D
                                      DustinB3403
                                      last edited by

                                      Or I guess an even better question is there some free training on wazuh? I did a very brief search and found a few things, but it's all over the place as to what may be useful.

                                      IRJI 1 Reply Last reply Reply Quote 0
                                      • IRJI
                                        IRJ @DustinB3403
                                        last edited by

                                        @DustinB3403 said in Wazuh - operational and can add agents - now what:

                                        @IRJ so a lot of this works out of the box, one question I have is how the heck do I get the details of specific events.

                                        In the below I specifically failed a login attempt a few times, How can I find out what client was attempting to login to this server and failed?

                                        chrome_43H3sn69pw.png

                                        So you already filtered it. Just click discover on top right

                                        DustinB3403D 1 Reply Last reply Reply Quote 0
                                        • IRJI
                                          IRJ @DustinB3403
                                          last edited by

                                          @DustinB3403 said in Wazuh - operational and can add agents - now what:

                                          Or I guess an even better question is there some free training on wazuh? I did a very brief search and found a few things, but it's all over the place as to what may be useful.

                                          Nope, I should make a course on Udemy, though

                                          1 Reply Last reply Reply Quote 0
                                          • DustinB3403D
                                            DustinB3403 @IRJ
                                            last edited by DustinB3403

                                            @IRJ said in Wazuh - operational and can add agents - now what:

                                            So you already filtered it. Just click discover on top right

                                            Doh that is so easy that I didn't even think that was it.

                                            IRJI 1 Reply Last reply Reply Quote 0
                                            • 1
                                            • 2
                                            • 1 / 2
                                            • First post
                                              Last post