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&amp;name=Trojan:Win32/Bagsu!rfn&amp;threatid=2147694406&amp;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-&gt;(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
>>
>

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