![]() ![]() You can find the answer to this question by running that query and looking at what filenames the base64 blobs are being saved to in /tmp. Index=botsv3 earliest=0 colonel.c OR definitelydontinvestigatethisfile.sh OR loot.txt OR blargh.tgz OR suitecrm.sql | reverse I decide to reverse the order of these results to find the earliest mention of these files and am met with gigantic blobs of Base64 being saved to files in /tmp/: We can infer from this that blargh.tgz contains the contents of both suitecrm.sql and loot.txt based on the command syntax. ![]() One of the resulting events has the following commandline value: cmdline: "tar" "czvf" "blargh.tgz" "suitecrm.sql" "loot.txt" I’ll investigate using: index=botsv3 earliest=0 While reviewing some of the osquery data from the pack_fim_file_events query, I notice some interesting files in the “/tmp” directory that I want to investigate further: Index=botsv3 earliest=0 /tmp/*.* sourcetype!=ps sourcetype!=lsof NOT phpsessionclean I immediately see some things I want to filter out: We know it’s likely that we’ll be able to find these files in the /tmp directory based on the question, so I’m going to start pretty broad here: What are the names of these files? Answer guidance: Comma separated without spaces, in alphabetical order, include the file extension where applicable. During the attack, two files are remotely streamed to the /tmp directory of the on-premises Linux server by the adversary. In the sum(status) field we are getting (200 + 304 + 303 + 404) = 1211 for method field value is equal to GET. After computing the value it is showing summation value inline with the each row where it is finding method field value is equal to GET. ![]() Eventstats command takes the whole value before the pipe as input and computes the summation value. Įxample : For method field value is equal to GET we have taken the summation of status. You can see in the above image in sum(status) field we are getting the summation. For computing the summation we have used eventstats command. At last we have taken summation of status field values by method with the help of sum function. We have taken method and status field in a tabular format by table command and by the dedup command we have removed duplicate values from the result set. In the above query method and status both are existing field names in _internal index and sourcetype name is splunkd_ui_access. Below we have given an example : index=_internal sourcetype=splunkd_ui_access | table method,status | dedup method,status | eventstats sum(status) by method But values will be same for each of the field values. It gives the output inline with the results which is returned by the previous pipe. It looks all events at a time then computes the result. Unlike streamstats, for eventstats command indexing order doesn’t matter with the output. You can also know about : Usage of Splunk commands : GEOSTATSĮventstats command computes the aggregate function taking all event as input and returns statistics result for the each event. Values are coming in row 1, row 4,row 5,row 7. After getting the new value it is performing summation operation. It holds the data until it is getting a new data for GET value. The result is showing in each of the rows by streaming order. You can see in the above image in sum(status) field we are getting the summation values.Įxample : For method field value is equal to GET we have taken the summation of status. For computing the summation we have used streamstats command. It gives the output inline with the results which is returned by the previous pipe. Below we have given an example : index=_internal sourcetype=splunkd_ui_access | table method,status | dedup method,status | streamstats sum(status) by method It holds the memory of previous events until it receives a new event. For streamstats command indexing order matters with the output. Strea mstats command computes the aggregate function taking the just previous event of current event and returns statistics result for the each event. So here we are to give you a clear idea about the difference between the streamstats and eventstats commands. Sometimes you might hear about streamstats and eventstats commands when you are making dashboards in Splunk. Hi everyone !! Here we have come with an interesting topic related to the SPL command. Difference between STREAMSTATS and EVENTSTATS commands in Splunk ![]()
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