SSO with abnormal user agent

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: Okta OR AzureAD OR Azure SignIn Log OR Duo OR PingOne
Detection Modules	Identity Analytics
ATT&CK Tactic	Initial Access (TA0001)
ATT&CK Technique	Valid Accounts: Domain Accounts (T1078.002)
Severity	Informational

Description

A user successfully authenticated via SSO with an abnormal user agent.

Attacker's Goals

Use a legitimate user and authenticate via an SSO service to gain access to the network.

Investigative actions

• Confirm that the activity is benign (e.g. the user has really moved to a new user agent app).
• Follow actions and suspicious activities regarding the user.

Variations

SSO with an offensive user agent

Synopsis

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

Description

A user successfully authenticated via SSO with an offensive user agent.

Attacker's Goals

Use a legitimate user and authenticate via an SSO service to gain access to the network.

Investigative actions

• Confirm that the activity is benign (e.g. the user has really moved to a new user agent app).
• Follow actions and suspicious activities regarding the user.