Suspicious API call from a Tor exit node

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Suspicious API call from a Tor exit node

A cloud API was called from a Tor exit node.

Module:: Cortex Cloud
Licensed by:: Cloud Runtime Security (CRS)
Data source:: AWS Audit Log, Azure Audit Log, Gcp Audit Log, Kubernetes Audit Logs

ATT&CK tactics: Command and Control (TA0011) Initial Access (TA0001)

ATT&CK techniques: Proxy: Multi-hop Proxy (T1090.003) Valid Accounts: Cloud Accounts (T1078.004)

Detector tags: Kubernetes - API OCI Analytics

Attacker's goals:

Conceal information about malicious activities, such as location and network usage.

Investigative actions:

Block all web traffic to and from public Tor entry and exit nodes.

Test period:: N/A (single event)
Deduplication:: 1 Day

2 variations:

Suspicious Kubernetes API call from a Tor exit node High
A Failed API call from a Tor exit node Informational (parent: High)