« LINUX:Wazuh-Décodeurs et Règles » : différence entre les versions

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=3<sup>ème</sup> cas=








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ossec: output: 'df -P': /dev/mapper/vgserverdb-lvserverdb      488143996 436452180  51691816      90% /disk1
&nbsp;
ossec: output: 'df -P': /dev/mapper/vgserverdb-lvserverdb      488143996 436452180  51691816      1O0% /disk1
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Starting wazuh-logtest v4.2.5
Type one log per line
&nbsp;
ossec: output: 'df -P': /dev/mapper/vgserverdb-lvserverdb      488143996 436452180  51691816      90% /disk1
&nbsp;
**Phase 1: Completed pre-decoding.
        full event: 'ossec: output: 'df -P': /dev/mapper/vgserverdb-lvserverdb      488143996 436452180  51691816      90% /disk1'
**Phase 2: Completed decoding.
        name: 'ossec'
**Phase 3: Completed filtering (rules).
        id: '530'
        level: '0'
        description: 'OSSEC process monitoring rules.'
        groups: '['ossec', 'process_monitor']'
        firedtimes: '1'
        mail: 'False'
----




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  <localfile>
    <log_format>command</log_format>
    <command>df -P</command>
    <frequency>360</frequency>
  </localfile>
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/var/ossec/ruleset/rules/0015-ossec_rules.xml 
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<group name="ossec,">
  <rule id="500" level="0">
    <category>ossec</category>
    <decoded_as>ossec</decoded_as>
    <description>Grouping of ossec rules.</description>
  </rule>
  <rule id="530" level="0">
    <if_sid>500</if_sid>
    <match>^ossec: output: </match>
    <description>OSSEC process monitoring rules.</description>
    <group>process_monitor,</group>
  </rule>
  <rule id="531" level="7" ignore="7200">
    <if_sid>530</if_sid>
    <match>ossec: output: 'df -P': /dev/</match>
    <regex>100%</regex>
    <description>Partition usage reached 100% (disk space monitor).</description>
    <group>low_diskspace,pci_dss_10.6.1,gpg13_10.1,gdpr_IV_35.7.d,hipaa_164.312.b,nist_800_53_AU.6,tsc_CC7.2,tsc_CC7.3,</group>
  </rule>
  <rule id="532" level="0">
    <if_sid>531</if_sid>
    <match>cdrom|/media|usb|/mount|floppy|dvd</match>
    <description>Ignoring external medias.</description>
  </rule>
</group>
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=3<sup>ème</sup> cas=


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<group name="ossec,">
  <rule id="100101" level="7" ignore="7200">
    <if_sid>530</if_sid>
    <match>ossec: output: 'df -P': /dev/</match>
    <regex>9\d%</regex>
    <description>Partition usage reached 90% (disk space monitor).</description>
    <group>low_diskspace,</group>
  </rule>
</group>.
----




----
Starting wazuh-logtest v4.2.5
Type one log per line
&nbsp;
ossec: output: 'df -P': /dev/mapper/vgserverdb-lvserverdb      488143996 436452180  51691816      90% /disk1
&nbsp;
**Phase 1: Completed pre-decoding.
        full event: 'ossec: output: 'df -P': /dev/mapper/vgserverdb-lvserverdb      488143996 436452180  51691816      90% /disk1'
**Phase 2: Completed decoding.
        name: 'ossec'
**Phase 3: Completed filtering (rules).
        id: '100101'
        level: '7'
        description: 'Partition usage reached 90% (disk space monitor).'
        groups: '['ossec']'
        firedtimes: '1'
        mail: 'True'
**Alert to be generated.
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