Security

How to create exception EventID 8004 - imputs.conf?

RenanMarcelino
Explorer

Hi everyone,

I'm trying to create an EventID 8004 exception from the C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\acrocef_1\RdrCEF.exe directory. I need to receive in Splunk EventID 8004 but not from RdrCEF.exe . I'm trying to use these blacklists below, but I still get events from this directory. I'm suspicious about the regex, perhaps incorrectly. Some help?

directory
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\acrocef_1\RdrCEF.exe

regex usage:
blacklist = EventCode = "^8004$" FullFilePath = "C:\\Program\sFiles\s\(x86\)\\Adobe\\Acrobat\sReader\sDC\\Reader\\acrocef\_1\\RdrCEF\.exe"

blacklist1 = EventCode = "^8004$" Message = "C:\\Program\sFiles\s\(x86\)\\Adobe\\Acrobat\sReader\sDC\\Reader\\acrocef\_1\\RdrCEF\.exe"

in event viwer the trigger is:
%PROGRAMFILES%\ADOBE\ACROBAT READER DC\READER\ACROCEF_1\RDRCEF.EXE

Labels (1)
0 Karma

RenanMarcelino
Explorer

Hello, @isoutamo .

I posted my imputs.conf iabove.

I appreciate it if you can help me 

 

0 Karma

RenanMarcelino
Explorer
[WinEventLog://Microsoft-Windows-AppLocker/EXE and DLL]
checkpointInterval = 5
current_only = 0
disabled = 0
index = "our indexer"
start_from = oldest
renderXml = 1
whitelist = 8000, 8004, 8007, 8008, 8029, 8032, 8035, 8036, 8040
blacklist = EventCode = "^8004$" FullFilePath = "C:\\Program\sFiles\s\(x86\)\\Adobe\\Acrobat\sReader\sDC\\Reader\\acrocef\_1\\RdrCEF\.exe"
blacklist1 = EventCode = "^8004$" Message = "C:\\Program\sFiles\s\(x86\)\\Adobe\\Acrobat\sReader\sDC\\Reader\\acrocef\_1\\RdrCEF\.exe"
_TCP_ROUTING = "our destiny"
0 Karma

isoutamo
SplunkTrust
SplunkTrust

I think that your white and black lists are not correct regular expressions. You should try to use something like

C:\\\\Program Files \(x86\)\\Adobe\\Acrobat Reader DC\\Reader\\acrocef\_1\\RdrCEF\.exe

as a FullFilePath. A good place to test those is regex101.com.

0 Karma

isoutamo
SplunkTrust
SplunkTrust

Can you post your real inputs.conf inside </> block?

RenanMarcelino
Explorer

follow the imputs.conf @isoutamo 

[WinEventLog://Microsoft-Windows-AppLocker/EXE and DLL]
checkpointInterval = 5
current_only = 0
disabled = 0
index = "our indexer"
start_from = oldest
renderXml = 1
whitelist = 8000, 8004, 8007, 8008, 8029, 8032, 8035, 8036, 8040
blacklist = EventCode = "^8004$" FullFilePath = "C:\\Program\sFiles\s\(x86\)\\Adobe\\Acrobat\sReader\sDC\\Reader\\acrocef\_1\\RdrCEF\.exe"
blacklist1 = EventCode = "^8004$" Message = "C:\\Program\sFiles\s\(x86\)\\Adobe\\Acrobat\sReader\sDC\\Reader\\acrocef\_1\\RdrCEF\.exe"
_TCP_ROUTING = "our destiny"

 

0 Karma
Get Updates on the Splunk Community!

Building Reliable Asset and Identity Frameworks in Splunk ES

 Accurate asset and identity resolution is the backbone of security operations. Without it, alerts are ...

Cloud Monitoring Console - Unlocking Greater Visibility in SVC Usage Reporting

For Splunk Cloud customers, understanding and optimizing Splunk Virtual Compute (SVC) usage and resource ...

Automatic Discovery Part 3: Practical Use Cases

If you’ve enabled Automatic Discovery in your install of the Splunk Distribution of the OpenTelemetry ...