VPN login with a machine account

Synopsis

Field	Value
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	Informational

Description

A machine account successfully logged 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 login 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 with a machine account

Synopsis

Field	Value
ATT&CK Tactic	Initial Access (TA0001)
ATT&CK Technique	Valid Accounts: Domain Accounts (T1078.002)
Severity	Low

Description

A machine account successfully logged 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 login 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.