A user accessed an uncommon AppID

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-04
Category
Analytics Alert Reference
Order
Alert name

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

1 Day

Required Data

  • Requires:
    • Palo Alto Networks Platform Logs
  • Requires:
    • 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

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

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

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

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

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.