Rare AppID usage to a rare destination

Cortex XDR Analytics Alert Reference by Alert name

Product

Cortex XDR

Last date published

2024-10-08

Synopsis

Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	14 Days
Required Data	Requires one of the following data sources: Palo Alto Networks Platform Logs OR XDR Agent OR Third-Party Firewalls
Detection Modules
Detector Tags
ATT&CK Tactic	Command and Control (TA0011)
ATT&CK Technique	Application Layer Protocol (T1071) Non-Standard Port (T1571)
Severity	Informational

Description

Rare AppID with port usage to rare destination.

Attacker's Goals

Attackers might use well-known ports with uncommon applications to avoid being detected by a non-application aware firewall, or to bypass firewall rules based only on ports.

Investigative actions

Investigate the endpoints participating in the session.

Variations

Rare AppID usage to a rare destination using an unsigned process

Synopsis

ATT&CK Tactic

Command and Control (TA0011)

ATT&CK Technique

Severity

Low

Description

Rare AppID with port usage to rare destination.

Attacker's Goals

Attackers might use well-known ports with uncommon applications to avoid being detected by a non-application aware firewall, or to bypass firewall rules based only on ports.

Investigative actions

Investigate the endpoints participating in the session.

Rare AppID usage to a rare destination from an internet-facing server

Synopsis

ATT&CK Tactic

Command and Control (TA0011)

ATT&CK Technique

Severity

Low

Description

Rare AppID with port usage to rare destination.

Attacker's Goals

Attackers might use well-known ports with uncommon applications to avoid being detected by a non-application aware firewall, or to bypass firewall rules based only on ports.

Investigative actions

Investigate the endpoints participating in the session.