VPN login by a service account

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-18
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 one of the following data sources:
    • Palo Alto Networks Global Protect
      OR
    • Third-Party VPNs

Detection Modules

Identity Analytics

ATT&CK Tactic

Initial Access (TA0001)

ATT&CK Technique

Valid Accounts: Domain Accounts (T1078.002)

Severity

Low

Description

A service account attempted to log in to a VPN service.

Attacker's Goals

Use an account that was possibly compromised in the past to gain access to the network and access privileged resources.

Investigative actions

  • See whether the service authentication was successful.
  • Check whether the account has done any administrative actions it should not usually do.
  • Look for more logins and authentications by the account throughout the network.

Variations

Rare VPN login by an administrative service account

Synopsis

ATT&CK Tactic

Initial Access (TA0001)

ATT&CK Technique

Valid Accounts: Domain Accounts (T1078.002)

Severity

Medium

Description

An administrative service account attempted to log in to a VPN service.

Attacker's Goals

Use an account that was possibly compromised in the past to gain access to the network and access privileged resources.

Investigative actions

  • See whether the service authentication was successful.
  • Check whether the account has done any administrative actions it should not usually do.
  • Look for more logins and authentications by the account throughout the network.