First VPN access from ASN for user

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 user logged in to a VPN with a new ASN.

Attacker's Goals

Use an account that was possibly compromised to gain access to the network.

Investigative actions

• Confirm that the activity is benign (e.g. the user has switched locations and providers).
• Verify if the ASN is an approved ASN to authenticate from.
• Follow further actions done by the user.

Variations

Unusual VPN access from ASN

Synopsis

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

Description

An unusual VPN login was made by a user.

Attacker's Goals

Use an account that was possibly compromised to gain access to the network.

Investigative actions

• Confirm that the activity is benign (e.g. the user has switched locations and providers).
• Verify if the ASN is an approved ASN to authenticate from.
• Follow further actions done by the user.