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Fix logon alerts triggering #304

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merged 3 commits into from
Mar 4, 2019
Merged

Fix logon alerts triggering #304

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96d3822
Fix logon alert triggering
cristgl Feb 26, 2019
7025dc9
Update workstation logon rule
chemamartinez Feb 26, 2019
c27b896
Assert start and end of logonType value
cristgl Mar 4, 2019
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15 changes: 12 additions & 3 deletions rules/0220-msauth_rules.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -1145,6 +1145,15 @@
</rule>

<rule id="20019" level="3">
<if_sid>20007</if_sid>
<field name="win.eventdata.workstationName">\.+</field>
<field name="win.eventdata.logonType">^2$</field>
<description>Windows Workstation Logon Success</description>
<options>no_full_log</options>
<group>authentication_success,pci_dss_10.2.5,gpg13_7.1,gpg13_7.2,gdpr_IV_32.2,</group>
</rule>

<rule id="20020" level="3">
<if_sid>20007</if_sid>
<options>alert_by_email</options>
<if_fts />
Expand All @@ -1153,7 +1162,7 @@
<group>authentication_success,pci_dss_10.2.5,gpg13_7.1,gpg13_7.2,gdpr_IV_32.2,</group>
</rule>

<rule id="20020" level="0">
<rule id="20021" level="0">
<if_sid>20005</if_sid>
<field name="win.system.eventID">^680$</field>
<description>Windows login attempt (ignored). Duplicated</description>
Expand Down Expand Up @@ -1907,7 +1916,7 @@
<rule id="20166" level="3">
<if_sid>20007</if_sid>
<field name="win.system.eventID">^4624$</field>
<field name="win.eventdata.logonType">8</field>
<field name="win.eventdata.logonType">^8$</field>
<description>MS Exchange Logon Success</description>
<options>no_full_log</options>
<group>pci_dss_10.2.5,gpg13_7.1,gpg13_7.2,gdpr_IV_32.2,</group>
Expand All @@ -1916,7 +1925,7 @@
<rule id="20167" level="0">
<if_sid>20049</if_sid>
<field name="win.system.eventID">^4634$</field>
<field name="win.eventdata.logonType">8</field>
<field name="win.eventdata.logonType">^8$</field>
<description>MS Exchange User Logoff</description>
<options>no_full_log</options>
<group>pci_dss_10.2.5,gpg13_7.1,gpg13_7.2,gdpr_IV_32.2,</group>
Expand Down