> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/analytics-alerts/alerts-by-name/suspicious-api-call-from-a-tor-exit-node.md).
# Suspicious API call from a Tor exit node
### Synopsis
| Field | Value |
| -------------------- | -------------------------------------------------------------------------------------------------------------------------------- |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | N/A (single event) |
| Deduplication Period | 1 Day |
| Required Data | Requires one of the following data sources:
AWS Audit Log OR Azure Audit Log OR Gcp Audit Log OR Kubernetes Audit Logs
|
| Detection Modules | Cloud |
| Detector Tags | Kubernetes - API |
| ATT\&CK Tactic | Command and Control (TA0011), Initial Access (TA0001) |
| ATT\&CK Technique | Proxy: Multi-hop Proxy (T1090.003), Valid Accounts: Cloud Accounts (T1078.004) |
| Severity | High |
### Description
A cloud API was called from a Tor exit node.
### 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.
### Variations
Suspicious Kubernetes API call from a Tor exit node
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------------------------------------------------ |
| ATT\&CK Tactic | Command and Control (TA0011), Initial Access (TA0001) |
| ATT\&CK Technique | Proxy: Multi-hop Proxy (T1090.003), Valid Accounts: Cloud Accounts (T1078.004) |
| Severity | High |
**Description**
A Kubernetes API was called from a Tor exit node.
**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.
A Failed API call from a Tor exit node
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------------------------------------------------ |
| ATT\&CK Tactic | Command and Control (TA0011), Initial Access (TA0001) |
| ATT\&CK Technique | Proxy: Multi-hop Proxy (T1090.003), Valid Accounts: Cloud Accounts (T1078.004) |
| Severity | Informational |
**Description**
A cloud API was called from a Tor exit node.
**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.
---
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