Greetings Everyone! Let’s continue to turn Splunk into a multipurpose tool that can quickly detect any threat. My last article described how to create correlation events using Alerts. Now I’ll tell you how to make a simple integration with Virus Total base.
Many of us use Sysmon in the environment to monitor network connections, process creations and any changes in time of file creation. This system driver provides monitoring and logging of system activity to the Event Log. One of the most required Sysmon features is calculation and recording of running processes’ hashes. Thus, we can use this data, Splunk and Virus Total base to detect malicious processes that possibly run in your environment.
To setup collecting Sysmon logs from Windows systems, we need to install Add-on for Microsoft Sysmon on Splunk. You can find the description of this process on https://splunkbase.splunk.com/app/1914/.
Sysmon event with ID 1:
index=* source=”WinEventLog:Microsoft-Windows-Sysmon/Operational” EventCode=1
Building of statistics table:
index=* source=”WinEventLog:Microsoft-Windows-Sysmon/Operational” EventCode=1 | stats count by Computer Hashes Image
<drilldown target=”My New Window”>
In this article, I showed a simple way to make integration using drilldown. You can leverage this method to integrate a lot of different and convenient checks on external web resources. With a single click, you will get the information you need. You can also use Sysmon Framework by SOC Prime for detection and deeper analysis of malicious activities. My next article will be about leveraging of depends panels, the tool that helps make dashboards more informative.