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AWS EC2 instance communicating with malicious IP

guardduty

Classification:

threat-intel

Goal

Detect when an EC2 instance makes an outbound network connection to a malcious IP address.

Strategy

This rule lets you monitor this GuardDuty integration finding:

Triage and response

  1. Determine which IP address triggered the signal. This can be found in the sample.
  2. If the instance is compromised:
    • Review the AWS documentation on remediating a compromised EC2 instance.

Changelog

  • 1 November 2022 - Updated links.