First SSO Resource Access in the Organization

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: AzureAD OR Azure SignIn Log OR Idira OR Duo OR Okta OR OneLogin OR PingOne
Detection Modules	Identity Analytics
ATT&CK Tactic	Initial Access (TA0001), Discovery (TA0007)
ATT&CK Technique	Valid Accounts: Domain Accounts (T1078.002), Cloud Service Discovery (T1526)
Severity	Informational

Description

A resource was accessed for the first time via SSO.

Attacker's Goals

Use a possibly compromised account to access privileged resources.

Investigative actions

• Confirm that the activity is benign (e.g. this is a newly approved resource).
• Follow further actions done by the user that attempted to access the resource.

Variations

Abnormal first access to a resource via SSO in the organization

Synopsis

Field	Value
ATT&CK Tactic	Initial Access (TA0001), Discovery (TA0007)
ATT&CK Technique	Valid Accounts: Domain Accounts (T1078.002), Cloud Service Discovery (T1526)
Severity	Low

Description

A resource was accessed for the first time via SSO with suspicious characteristics.

Attacker's Goals

Use a possibly compromised account to access privileged resources.

Investigative actions

• Confirm that the activity is benign (e.g. this is a newly approved resource).
• Follow further actions done by the user that attempted to access the resource.