Curl-url-http-3a-2f-2f169.254.169.254-2flatest-2fapi-2ftoken -

curl http://169.254.169.254/latest/api/token This command retrieves a from the AWS Instance Metadata Service Version 2 (IMDSv2). That token can then be used to access deeper metadata, including IAM role credentials. In the wrong hands, it leads to account takeover , data breaches , and cryptocurrency mining attacks .

In plaintext, the command is:

curl -H "X-aws-ec2-metadata-token: <token>" http://169.254.169.254/latest/meta-data/iam/security-credentials/role-name IMDSv2 prevents HTTP redirect attacks and SSRF (Server-Side Request Forgery) that rely on simple GET requests without headers. When you see this command in logs, a payload, or a URL-encoded string like ours, it means someone is probing for IMDSv2 tokens . Attack scenario 1: SSRF in a web application Imagine a PHP app that fetches images from a user-provided URL: curl-url-http-3A-2F-2F169.254.169.254-2Flatest-2Fapi-2Ftoken

Instead, this string is an representation of a command and an internal IP address. curl http://169

Understanding what 169.254.169.254 represents, how IMDSv2 works, and why attackers target the token endpoint will make you a better cloud architect, a stronger defender, or a more effective ethical hacker. Understanding what 169