An app was removed from a blocked list in Google Workspace

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	2 Days
Required Data	Google Workspace Audit Logs
Detection Modules	Identity Threat Module, SaaS Threat Detection
Detector Tags	Google Workspace
ATT&CK Tactic	Defense Impairment (TA0112)
ATT&CK Technique	Modify Authentication Process (T1556)
Severity	Informational

Description

An identity removed an app from Google Workspace blocked OAuth or third-party apps list.

Attacker's Goals

Malicious OAuth Apps can be used to request elevated permissions or to impersonate another user.

Investigative actions

• Check if the identity intended to perform this action or look for signs that the user account is compromised (e.g. abnormal logins, unusual activity).
• Check if the app that was removed from the trusted apps list looks suspicious.
• Follow further actions done by the account.

Variations

An app was removed from a blocked list in Google Workspace by a suspicious identity

Synopsis

Field	Value
ATT&CK Tactic	Defense Impairment (TA0112)
ATT&CK Technique	Modify Authentication Process (T1556)
Severity	Low

Description

An identity removed an app from Google Workspace blocked OAuth or third-party apps list.

Attacker's Goals

Malicious OAuth Apps can be used to request elevated permissions or to impersonate another user.

Investigative actions

• Check if the identity intended to perform this action or look for signs that the user account is compromised (e.g. abnormal logins, unusual activity).
• Check if the app that was removed from the trusted apps list looks suspicious.
• Follow further actions done by the account.

An app was removed from a blocked list in Google Workspace by a non Google Workspace administrative user

Synopsis

Field	Value
ATT&CK Tactic	Defense Impairment (TA0112)
ATT&CK Technique	Modify Authentication Process (T1556)
Severity	Low

Description

An identity removed an app from Google Workspace blocked OAuth or third-party apps list.

Attacker's Goals

Malicious OAuth Apps can be used to request elevated permissions or to impersonate another user.

Investigative actions

• Check if the identity intended to perform this action or look for signs that the user account is compromised (e.g. abnormal logins, unusual activity).
• Check if the app that was removed from the trusted apps list looks suspicious.
• Follow further actions done by the account.

An app was removed from a blocked list in Google Workspace from an unusual ASN

Synopsis

Field	Value
ATT&CK Tactic	Defense Impairment (TA0112)
ATT&CK Technique	Modify Authentication Process (T1556)
Severity	Low

Description

An identity removed an app from Google Workspace blocked OAuth or third-party apps list.

Attacker's Goals

Malicious OAuth Apps can be used to request elevated permissions or to impersonate another user.

Investigative actions

• Check if the identity intended to perform this action or look for signs that the user account is compromised (e.g. abnormal logins, unusual activity).
• Check if the app that was removed from the trusted apps list looks suspicious.
• Follow further actions done by the account.