> 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/a-user-accessed-an-uncommon-appid.md).
# A user accessed an uncommon AppID
### Synopsis
| Field | Value |
| -------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | N/A (single event) |
| Deduplication Period | 1 Day |
| Required Data | Requires all of the following:
Palo Alto Networks Firewall EAL Logs OR Palo Alto Networks Firewall threat Logs OR Palo Alto Networks Firewall traffic Logs
XDR Agent
|
| Detection Modules | Identity Threat Module |
| ATT\&CK Tactic | Exfiltration (TA0010) |
| ATT\&CK Technique | Exfiltration Over Web Service (T1567) |
| Severity | Informational |
### Description
A user accessed an uncommon AppID that is rarely accessed by them or anyone else in the organization.
### Attacker's Goals
A user accessed an uncommon AppID that is rarely accessed by them or anyone else in the organization. This may indicate an attempt to exfiltrate sensitive data.
### Investigative actions
Check for any other suspicious activity related to the host and the user involved in the alert.
### Variations
A user accessed an uncommon external peer-to-peer service
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------- |
| ATT\&CK Tactic | Exfiltration (TA0010) |
| ATT\&CK Technique | Exfiltration Over Web Service (T1567) |
| Severity | Informational |
**Description**
A user accessed an uncommon external peer-to-peer service that is rarely accessed by them or anyone else in the organization.
**Attacker's Goals**
A user accessed an uncommon external peer-to-peer service that is rarely accessed by them or anyone else in the organization. This may indicate an attempt to exfiltrate sensitive data.
**Investigative actions**
Check for any other suspicious activity related to the host and the user involved in the alert.
A user accessed an uncommon external file-sharing service
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------- |
| ATT\&CK Tactic | Exfiltration (TA0010) |
| ATT\&CK Technique | Exfiltration Over Web Service (T1567) |
| Severity | Informational |
**Description**
A user accessed an uncommon external file-sharing service that is rarely accessed by them or anyone else in the organization.
**Attacker's Goals**
A user accessed an uncommon external file-sharing service that is rarely accessed by them or anyone else in the organization. This may indicate an attempt to exfiltrate sensitive data.
**Investigative actions**
Check for any other suspicious activity related to the host and the user involved in the alert.
A user accessed an uncommon peer-to-peer service
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------- |
| ATT\&CK Tactic | Exfiltration (TA0010) |
| ATT\&CK Technique | Exfiltration Over Web Service (T1567) |
| Severity | Informational |
**Description**
A user accessed an uncommon peer-to-peer service that is rarely accessed by them or anyone else in the organization.
**Attacker's Goals**
A user accessed an uncommon peer-to-peer service that is rarely accessed by them or anyone else in the organization. This may indicate an attempt to exfiltrate sensitive data.
**Investigative actions**
Check for any other suspicious activity related to the host and the user involved in the alert.
A user accessed an uncommon file-sharing service
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------- |
| ATT\&CK Tactic | Exfiltration (TA0010) |
| ATT\&CK Technique | Exfiltration Over Web Service (T1567) |
| Severity | Informational |
**Description**
A user accessed an uncommon file-sharing service that is rarely accessed by them or anyone else in the organization.
**Attacker's Goals**
A user accessed an uncommon file-sharing service that is rarely accessed by them or anyone else in the organization. This may indicate an attempt to exfiltrate sensitive data.
**Investigative actions**
Check for any other suspicious activity related to the host and the user involved in the alert.
A user accessed an uncommon VPN service
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------- |
| ATT\&CK Tactic | Exfiltration (TA0010) |
| ATT\&CK Technique | Exfiltration Over Web Service (T1567) |
| Severity | Informational |
**Description**
A user connected to an unusual VPN service that is rarely accessed by them or anyone else in the organization. This may indicate an attempt to hide their online activity.
**Attacker's Goals**
A user connected to an unusual VPN service that is rarely accessed by them or anyone else in the organization. This may indicate an attempt to hide their online activity.
**Investigative actions**
Check for any other suspicious activity related to the host and the user involved in the alert.
---
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