Multiple failed logins from a single IP

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

1 Hour

Deduplication Period

5 Days

Required Data

  • Requires one of the following data sources:
    • AWS Audit Log
      OR
    • Azure Audit Log
      OR
    • Gcp Audit Log

Detection Modules

Cloud

ATT&CK Tactic

Initial Access (TA0001)

ATT&CK Technique

Trusted Relationship (T1199)

Severity

Informational

Description

Multiple failed logins were observed in a short period of time from a single external IP.
The IP is not a known identity provider.

Attacker's Goals

Gain initial access to the cloud console.

Investigative actions

  • Check if the IP is a known IP.
  • Check if a successful login from the same IP occurred after the failed login attempts.

Variations

Multiple failed logins from an unknown IP

Synopsis

ATT&CK Tactic

Initial Access (TA0001)

ATT&CK Technique

Trusted Relationship (T1199)

Severity

Medium

Description

Multiple failed logins were observed in a short period of time from a single external IP.
The IP is not a known identity provider.
The IP is not a known IP in the organization.
This could indicate on an active brute force attempt.

Attacker's Goals

Gain initial access to the cloud console.

Investigative actions

  • Check if the IP is a known IP.
  • Check if a successful login from the same IP occurred after the failed login attempts.