Nice! Thanks Pedro! I've got it now.. Cheers.
On Wednesday, May 18, 2016 at 10:09:14 AM UTC-4, Pedro S wrote: > > Hi Rob, > > *extra_data *is another allowed field used by OSSEC decoders to extract > information from the event, once it is extracted you can match the field > content in order to create a rule. > The content of extra_data depends on the decoder which extracted it, in > Windows decoders > <https://github.com/wazuh/ossec-rules/blob/master/rules-decoders/ossec/decoders/windows_decoders.xml#L350>could > > be for example: Win source, Parent Image, Protocol, Signature, Start > function... > > Best regards, > > Pedro S. > > On Tuesday, May 17, 2016 at 5:32:25 PM UTC+2, Rob B wrote: >> >> Thanks Brent.! Funny enough, that day I figured it out and built a >> whole bunch very similar to your list. Seems to be working very nicely, as >> now I find myself leaning to creating some down right creative >> composites.... (finally) >> >> I've been looking for some reference material on the <extra_data> tag? >> How is this used properly? >> >> >> >> Cheers! Rob >> >> >> On Monday, May 16, 2016 at 5:22:08 PM UTC-4, Brent Morris wrote: >>> >>> Rob - can you post your OSSEC version of the log? I can check my rules. >>> These are a culmination of gleaned rules that I updated some time back >>> with new event IDs. Yours is covered in there.... but I would like to >>> test it against a valid OSSEC log. So if you can post it from the OSSEC >>> logs, that'd be great. >>> >>> Here they are.. >>> >>> </group> >>> <!-- Microsoft Security Essentials rules --> >>> <!-- see https://technet.microsoft.com/en-us/library/hh144989.aspx --> >>> <group name="windows,mse,"> >>> <rule id="720001" level="0"> >>> <category>windows</category> >>> <if_sid>18101,18102,18103</if_sid> >>> <extra_data>^Microsoft Antimalware</extra_data> >>> <description>Grouping of Microsoft Security Essentials >>> rules.</description> >>> </rule> >>> >>> <rule id="720010" level="12"> >>> <if_sid>720001</if_sid> >>> <id>^1118$|^1119$</id> >>> <group>virus,</group> >>> <description>Microsoft Security Essentials - Virus detected, but >>> unable to remove.</description> >>> </rule> >>> <rule id="720011" level="7"> >>> <if_sid>720001</if_sid> >>> <id>^1117$</id> >>> <group>virus,</group> >>> <description>Microsoft Security Essentials - Virus detected and >>> properly removed.</description> >>> </rule> >>> >>> <rule id="720012" level="7"> >>> <if_sid>720001</if_sid> >>> <id>^1119$|^1118$|^1117$|^1116$</id> >>> <group>virus,</group> >>> <description>Microsoft Security Essentials - Virus >>> detected.</description> >>> </rule> >>> >>> <rule id="720013" level="7"> >>> <if_sid>720001</if_sid> >>> <id>^1015$</id> >>> <group>virus,</group> >>> <description>Microsoft Security Essentials - Suspicious activity >>> detected.</description> >>> </rule> >>> >>> <!-- Service conditions and errors --> >>> <rule id="720020" level="3"> >>> <if_sid>720001</if_sid> >>> <id>^5007$</id> >>> <description>Microsoft Security Essentials - Configuration >>> changed.</description> >>> <group>policy_changed,</group> >>> </rule> >>> <rule id="720021" level="9"> >>> <if_sid>720001</if_sid> >>> <id>^5008$</id> >>> <description>Microsoft Security Essentials - Service >>> failed.</description> >>> </rule> >>> <rule id="720022" level="9"> >>> <if_sid>720001</if_sid> >>> <id>^3002$</id> >>> <description>Microsoft Security Essentials - Real time protection >>> failed.</description> >>> </rule> >>> <rule id="720023" level="8"> >>> <if_sid>720001</if_sid> >>> <id>^2012$</id> >>> <description>Microsoft Security Essentials - Cannot use Dynamic >>> Signature Service.</description> >>> </rule> >>> <rule id="720024" level="8"> >>> <if_sid>720001</if_sid> >>> <id>^2004$</id> >>> <description>Microsoft Security Essentials - Loading definitions >>> failed. Using last good set.</description> >>> </rule> >>> <rule id="720025" level="8"> >>> <if_sid>720001</if_sid> >>> <id>^2003$</id> >>> <description>Microsoft Security Essentials - Engine update >>> failed.</description> >>> </rule> >>> <rule id="720026" level="8"> >>> <if_sid>720001</if_sid> >>> <id>^2001$</id> >>> <description>Microsoft Security Essentials - Definitions update >>> failed.</description> >>> </rule> >>> <rule id="720027" level="7"> >>> <if_sid>720001</if_sid> >>> <id>^1005$</id> >>> <description>Microsoft Security Essentials - Scan error. Scan has >>> stopped.</description> >>> </rule> >>> <rule id="720028" level="5"> >>> <if_sid>720001</if_sid> >>> <id>^1002$</id> >>> <description>Microsoft Security Essentials - Scan stopped before >>> completion.</description> >>> </rule> >>> >>> <!-- EICAR test file special case --> >>> <!-- www.eicar.org/86-0-Intended-use.html --> >>> <rule id="720041" level="5"> >>> <if_sid>720012</if_sid> >>> <match>Virus:DOS/EICAR_Test_File</match> >>> <options>alert_by_email</options> >>> <description>Microsoft Security Essentials - EICAR test file >>> detected.</description> >>> </rule> >>> <rule id="720042" level="3"> >>> <if_sid>720011</if_sid> >>> <match>Virus:DOS/EICAR_Test_File</match> >>> <options>alert_by_email</options> >>> <description>Microsoft Security Essentials - EICAR test file >>> removed.</description> >>> </rule> >>> <rule id="720043" level="8"> >>> <if_sid>720010</if_sid> >>> <match>Virus:DOS/EICAR_Test_File</match> >>> <options>alert_by_email</options> >>> <description>Microsoft Security Essentials - EICAR test file >>> detected, but removal failed.</description> >>> </rule> >>> >>> <!-- Status messages --> >>> <rule id="720050" level="3"> >>> <if_sid>720001</if_sid> >>> <id>^2000$</id> >>> <description>Microsoft Security Essentials - Signature database >>> updated.</description> >>> </rule> >>> <rule id="720051" level="3"> >>> <if_sid>720001</if_sid> >>> <id>^2002$</id> >>> <description>Microsoft Security Essentials - Scan engine >>> updated.</description> >>> </rule> >>> <rule id="720053" level="3"> >>> <if_sid>720001</if_sid> >>> <id>^1000$|^1001$</id> >>> <description>Microsoft Security Essentials - Scan started or >>> stopped.</description> >>> </rule> >>> <rule id="720054" level="4"> >>> <if_sid>720001</if_sid> >>> <id>^1013$</id> >>> <description>Microsoft Security Essentials - History >>> cleared.</description> >>> </rule> >>> >>> <!-- Time based alerts --> >>> <rule id="720070" level="10" frequency="4" timeframe="240"> >>> <if_matched_sid>720011</if_matched_sid> >>> <description>Multiple Microsoft Security Essentials AV warnings >>> detected.</description> >>> </rule> >>> <rule id="720071" level="10" frequency="4" timeframe="240"> >>> <if_matched_sid>720012</if_matched_sid> >>> <description>Multiple Microsoft Security Essentials AV warnings >>> detected.</description> >>> </rule> >>> >>> </group> <!-- mse --> >>> >>> >>> On Friday, April 22, 2016 at 1:16:22 PM UTC-7, Rob B wrote: >>>> >>>> Hello All, >>>> >>>> Does anyone have a decoder for Windows Defender floating around out >>>> there?? >>>> >>>> Im having a heck of a time... Here is the event channel event example >>>> if anyone is curious or can help: (Win10 box) >>>> >>>> Log Name: Microsoft-Windows-Windows Defender/Operational >>>> Source: Microsoft-Windows-Windows Defender >>>> Date: 4/22/2016 4:05:17 PM >>>> Event ID: 1116 >>>> Task Category: None >>>> Level: Warning >>>> Keywords: >>>> User: SYSTEM >>>> Computer: VICTIM0 >>>> Description: >>>> Windows Defender has detected malware or other potentially unwanted >>>> software. >>>> For more information please see the following: >>>> >>>> http://go.microsoft.com/fwlink/?linkid=37020&name=Trojan:Win32/Bagsu!rfn&threatid=2147694406&enterprise=0 >>>> Name: Trojan:Win32/Bagsu!rfn >>>> ID: 2147694406 >>>> Severity: Severe >>>> Category: Trojan >>>> Path: >>>> containerfile:_\\10.0.1.10\share\Malware_For_Demo\REAL_BAD_Malz2\Server.exe;file:_\\10.0.1.10\share\Malware_For_Demo\REAL_BAD_Malz2\Server.exe;file:_\\10.0.1.10\share\Malware_For_Demo\REAL_BAD_Malz2\Server.exe->(VFS:svchost.exe) >>>> Detection Origin: Network share >>>> Detection Type: Concrete >>>> Detection Source: Real-Time Protection >>>> User: frog >>>> Process Name: C:\Windows\explorer.exe >>>> Signature Version: AV: 1.217.2054.0, AS: 1.217.2054.0, NIS: 115.8.0.0 >>>> Engine Version: AM: 1.1.12603.0, NIS: 2.1.11804.0 >>>> >>>> Event Xml: >>>> <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event";> >>>> <System> >>>> <Provider Name="Microsoft-Windows-Windows Defender" >>>> Guid="{11CD958A-C507-4EF3-B3F2-5FD9DFBD2C78}" /> >>>> <EventID>1116</EventID> >>>> <Version>0</Version> >>>> <Level>3</Level> >>>> <Task>0</Task> >>>> <Opcode>0</Opcode> >>>> <Keywords>0x8000000000000000</Keywords> >>>> <TimeCreated SystemTime="2016-04-22T20:05:17.551083000Z" /> >>>> <EventRecordID>95</EventRecordID> >>>> <Correlation ActivityID="{ECC2B320-F9A6-41AD-9F17-5C9EE24D3330}" /> >>>> <Execution ProcessID="2332" ThreadID="4540" /> >>>> <Channel>Microsoft-Windows-Windows Defender/Operational</Channel> >>>> <Computer>VICTIM0</Computer> >>>> <Security UserID="S-1-5-77" /> >>>> </System> >>>> <EventData> >>>> <Data Name="Product Name">%%827</Data> >>>> <Data Name="Product Version">4.9.10586.0</Data> >>>> <Data Name="Detection >>>> ID">{CAADD684-36C9-444B-8A6D-8CE537A93E40}</Data> >>>> <Data Name="Detection Time">2016-04-22T20:04:40.369Z</Data> >>>> <Data Name="Unused"> >>>> </Data> >>>> <Data Name="Unused2"> >>>> </Data> >>>> <Data Name="Threat ID">2147694406</Data> >>>> <Data Name="Threat Name">Trojan:Win32/Bagsu!rfn</Data> >>>> <Data Name="Severity ID">5</Data> >>>> <Data Name="Severity Name">Severe</Data> >>>> <Data Name="Category ID">8</Data> >>>> <Data Name="Category Name">Trojan</Data> >>>> <Data Name="FWLink"> >>>> http://go.microsoft.com/fwlink/?linkid=37020&name=Trojan:Win32/Bagsu!rfn&threatid=2147694406&enterprise=0 >>>> </Data> >>>> <Data Name="Status Code">1</Data> >>>> <Data Name="Status Description"> >>>> </Data> >>>> <Data Name="State">1</Data> >>>> <Data Name="Source ID">3</Data> >>>> <Data Name="Source Name">%%818</Data> >>>> <Data Name="Process Name">C:\Windows\explorer.exe</Data> >>>> <Data Name="Detection User">frog</Data> >>>> <Data Name="Unused3"> >>>> </Data> >>>> <Data >>>> Name="Path">containerfile:_\\10.0.1.10\share\Malware_For_Demo\REAL_BAD_Malz2\Server.exe;file:_\\10.0.1.10\share\Malware_For_Demo\REAL_BAD_Malz2\Server.exe;file:_\\10.0.1.10\share\Malware_For_Demo\REAL_BAD_Malz2\Server.exe->(VFS:svchost.exe)</Data> >>>> <Data Name="Origin ID">2</Data> >>>> <Data Name="Origin Name">%%846</Data> >>>> <Data Name="Execution ID">1</Data> >>>> <Data Name="Execution Name">%%813</Data> >>>> <Data Name="Type ID">0</Data> >>>> <Data Name="Type Name">%%822</Data> >>>> <Data Name="Pre Execution Status">0</Data> >>>> <Data Name="Action ID">9</Data> >>>> <Data Name="Action Name">%%887</Data> >>>> <Data Name="Unused4"> >>>> </Data> >>>> <Data Name="Error Code">0x00000000</Data> >>>> <Data Name="Error Description">The operation completed >>>> successfully. </Data> >>>> <Data Name="Unused5"> >>>> </Data> >>>> <Data Name="Post Clean Status">0</Data> >>>> <Data Name="Additional Actions ID">0</Data> >>>> <Data Name="Additional Actions String">No additional actions >>>> required</Data> >>>> <Data Name="Remediation User"> >>>> </Data> >>>> <Data Name="Unused6"> >>>> </Data> >>>> <Data Name="Signature Version">AV: 1.217.2054.0, AS: 1.217.2054.0, >>>> NIS: 115.8.0.0</Data> >>>> <Data Name="Engine Version">AM: 1.1.12603.0, NIS: 2.1.11804.0</Data> >>>> </EventData> >>>> </Event> >>>> >>>> >>>> Thanks!, Rob >>>> >>> -- --- You received this message because you are subscribed to the Google Groups "ossec-list" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
