8/8/2023 0 Comments Splunk query not equal![]() ![]() There must have been several hundred GB of downloaded data that vanished with it. The admin I was working with, without skipping a beat, shift-deleted the folder from the employee's workstation remotely. BTW, the regex strings in the rex commands are invalid, but that may be a typing error in the question. Try search query rex 'message ( \S\s)' where match (message, 'removed.Plus, we verified the DNS logs from sysmon to the firewall logs which showed "winword.exe" using several hundred IP connections around the world. 1 Answer Sorted by: 2 The match function expects a regular expression, not a pattern, as the second argument. When we compared the lookup to that employee's sysmon data, we found that that "winword.exe" hash didn't match the known good one. Using boolean and comparison operators This example shows field-value pair matching with boolean and comparison operators. We had a Windows 10 workstation VM w/ sysmon installed and sending data to Splunk, so we opened up over a dozen applications to log the file names and hashes, built the look up. Field-value pair matching This example shows field-value pair matching for specific values of source IP (src) and destination IP (dst). The client, qbittorrent, was a standalone application that was renamed to "winword.exe" Since it was a standalone application, it bypassed the need for an admin to run the installer. I did this specific type use case for a company that suspected an employee using a Bittorrent client. Use the if function to analyze field values Create a new field called error in each event. ![]() By looking at the hashes, you can see which one is legit and which one is not.Ī novel way you can use EDR data in Splunk is to generate a list of known filenames and hashes and store it in a lookup table or KV-store to compare against. ![]() I know how to search for parameters/variables that equal X valuebut how to I construct a. Configuring a Splunk Search Collector From the top nav, click Manage, then select a Worker Group to configure. Splunk Search Field Contains When use Splunk, if we have log. This page covers how to configure the Collector. log is not equal to a certain value(The configured TTL), for any cache key. The queries can be both simple and complex, as well as real-time searches. splunk table query Note that there are literals with and without quoting and. Yes, the file hashes are the same for the first 2. Version: 4.1 Splunk Search Cribl Stream supports collecting search results from Splunk queries. I would suggest combining the file names with the file hashes your EDR produces to give better, more precise results. While filenames are good for monitoring, one can easily rename the files out of band and that'll make your reporting and alerting much harder. ![]()
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