Frozen Assets: The Snowflake Tenant Heist
A retailer's Snowflake tenant is accessed with a contractor credential lifted from an infostealer log. With no MFA and no network policy to stop it, the actor logs in from VPN-exit IPs, recons with anomalous tooling, and bulk-exfiltrates an entire customer table. Work the Snowflake audit trail to reconstruct the theft.
Start this operation
Investigation Tasks
Complete each task by investigating alerts and submitting your findings.
Spot the foothold
20Production data is meant to be reachable only by the ETL service and BI accounts, with MFA, from the corporate network. Overnight, one login broke that pattern. Identify the Snowflake account behind the suspicious activity.
Trace the first exit node
20The account does not normally sign in from the public internet. Pinpoint the external address behind its first successful authenticated session.
Name the tooling tell
25The intruder's sessions did not use the normal drivers or the browser UI. Identify the unrecognized client application string used to run the reconnaissance and the bulk unload.
Find the staging step
20Before the data left, it was gathered into one place on the platform. Identify the temporary stage the actor created to hold the dump.
Recover the exfiltrated table
20Identify the fully-qualified table whose entire contents were unloaded and downloaded off the platform.
Classify the exfiltration
15Map the way the data left the platform to its MITRE ATT&CK technique.
6 tasks · 120 points total
Training Tools
Cloud Console
Cloud infrastructure logs
SIEM Console
Log analysis & SPL queries
Skills You'll Build
Requires foundational alert triage skills. Multiple data sources to correlate.
Prerequisites
- Basic understanding of security alerts
- Familiarity with Cloud concepts
- Familiarity with SIEM concepts
Ready to investigate?
More Operations
View allThe Agent Who Saw Too Much
A self-registered 'football agent' read live match data, downloaded internal documents, and pulled broadcast RTMP stream keys — all without a single assigned role. The frontend said Access Denied; the backend served everything. Reconstruct the broken-authorization chain across Entra sign-ins, web/API logs, cloud audit, and the perimeter firewall.
Zerologon DC takeover → ransomware
An unprivileged phishing foothold becomes a domain-wide ransomware outbreak in hours. The attacker abuses the Zerologon flaw to reset a domain controller's machine-account password, pivots controller-to-controller, and encrypts the estate after gutting the backups. Work the Windows Security log, the endpoint process tree, and the perimeter traffic to reconstruct the takeover.
One Packet From Disaster: SSRF to IMDS to S3
A misconfigured WAF in front of a bank's card-application portal was tricked into asking the cloud for its own keys. Follow the request from the web tier into the metadata service, watch an over-privileged role's credentials walk out the door, and reconstruct the 30 GB customer-data theft across CloudTrail, the perimeter, and the WAF logs.