HTTP with suspicious characteristics

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

2 Hours

Deduplication Period

1 Day

Required Data

  • Requires one of the following data sources:
    • XDR Agent
      OR
    • Third-Party Firewalls

Detection Modules

ATT&CK Tactic

ATT&CK Technique

Severity

Low

Description

Uncommon HTTP communication was performed by the host that might indicate its attempt to hide malicious activities.

Attacker's Goals

Data exfiltration, attack tool staging or command and control channel through a trusted service.

Investigative actions

  • Examine the legitimacy of the application that produced this uncommon connection.
  • Examine the parent process of this application.
  • Check for anomalies at the time when the communication occurred.

Variations

HTTP with suspicious characteristics which is repetitive

Synopsis

ATT&CK Tactic

ATT&CK Technique

Severity

Low

Description

Repetitevne HTTP communication was performed by the host that might indicate its attempt to hide malicious activities.

Attacker's Goals

Data exfiltration, attack tool staging or command and control channel through a trusted service.

Investigative actions

  • Examine the legitimacy of the application that produced this uncommon connection.
  • Examine the parent process of this application.
  • Check for anomalies at the time when the communication occurred.


HTTP with suspicious characteristics to an IP address

Synopsis

ATT&CK Tactic

ATT&CK Technique

Severity

Low

Description

Uncommon HTTP communication to IP address was performed by the host that might indicate its attempt to hide malicious activities.

Attacker's Goals

Data exfiltration, attack tool staging or command and control channel through a trusted service.

Investigative actions

  • Examine the legitimacy of the application that produced this uncommon connection.
  • Examine the parent process of this application.
  • Check for anomalies at the time when the communication occurred.


HTTP with suspicious characteristics that always fails

Synopsis

ATT&CK Tactic

ATT&CK Technique

Severity

Informational

Description

Unsuccessful HTTP communication to IP address was performed by the host that might indicate its attempt to hide malicious activities.

Attacker's Goals

Data exfiltration, attack tool staging or command and control channel through a trusted service.

Investigative actions

  • Examine the legitimacy of the application that produced this uncommon connection.
  • Examine the parent process of this application.
  • Check for anomalies at the time when the communication occurred.