Initial Confidence and Impact is set by the analytic author. The Risk Score is calculated by the following formula: Risk Score = (Impact * Confidence/100). User $user_arn$ has concurrent sessions from more than one unique IP address $src_ip$ in the span of 5 minutes. A common way to link session start and session end events is with the Splunk transaction command, which needs some sort of unique value between the two to tie them together and then it can even give you the duration automatically.
#Splunk login from session software
Filter as needed and/or customize the threshold to fit your environment. We are currently hiring Software Development Engineers, Product Managers, Account Managers, Solutions Architects, Support Engineers, System Engineers, Designers. Known False PositivesĪ user with concurrent sessions from different Ips may also represent the legitimate use of more than one device. This search works with AWS CloudTrail logs.
#Splunk login from session install
You must install Splunk AWS Add on and Splunk App for AWS. List of fields required to use this analytic.
It allows the user to filter out any results (false positives) without editing the SPL. | `aws_concurrent_sessions_from_different_ips_filter`Īws_concurrent_sessions_from_different_ips_filter is a empty macro by default. | stats values(userAgent) values(eventName) values(src_ip) as src_ip dc(src_ip) as distinct_ip_count by _time user_arn `cloudtrail` eventName = DescribeEventAggregates src_ip!="AWS Internal" Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud As users may behave differently across organizations, security teams should test and customize this detection to fit their environments. At Splunk, we are continuously working to enhance the security of Splunk Enterprise and Splunk Cloud Platform. import splunklib.client as client service nnect. The presence of this event occurring from two different IP addresses is highly unlikely. Curl command works fine, it generates the session key as well it connects to the splunk results and fetches the results. The Splunk Threat Research team leveraged this event name to identify 2 concurrent sessions. When a user navigates the AWS Console after authentication, the API call with the event name DescribeEventAggregates is registered in the AWS CloudTrail logs. This behavior could represent a session hijacking attack whereby an adversary has extracted cookies from a victims browser and is using them from a different location to access corporate online resources. The following analytic identifies an AWS IAM account with concurrent sessions coming from more than one unique IP address within the span of 5 minutes. AWS Concurrent Sessions From Different Ips
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