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Sigma rules for CVE-2024-7889

9 rules · scoped to cve · back to CVE-2024-7889
Direct rules mention this entity in their title or description. Related rules cover the techniques this entity is known to use.
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Detection rules

9 of 9
direct medium
Google Workspace Out Of Domain Email Forwarding
Detects automatic email forwarding to external domains in Google Workspace, which may indicate data leakage or misuse.
status experimental author Tom kluter id 2a0bb2dd-eb5f-4517-8cb9-404f8ba764a5 license Sigma · DRL-1.1
view Sigma YAML 
title: Google Workspace Out Of Domain Email Forwarding
id: 2a0bb2dd-eb5f-4517-8cb9-404f8ba764a5
status: experimental
description: Detects automatic email forwarding to external domains in Google Workspace, which may indicate data leakage or misuse.
references:
    - https://developers.google.com/workspace/admin/reports/v1/appendix/activity/login#email_forwarding_out_of_domain
author: Tom kluter
date: 2026-04-28
tags:
    - attack.t1114.003
    - attack.collection
logsource:
    product: gcp
    service: google_workspace.login
detection:
    selection:
        protoPayload.serviceName: 'login.googleapis.com'
        protoPayload.metadata.event.eventName: 'email_forwarding_out_of_domain'
    condition: selection
falsepositives:
    - Legitimate forwarding
level: medium
direct medium
Google Workspace Government Attack Warning
Detects a login attempt in Google Workspace flagged as a potential attack by a government-backed threat actor
status experimental author Tom Kluter id eafe6f2b-cfec-4612-aec2-49563c33a087 license Sigma · DRL-1.1
view Sigma YAML 
title: Google Workspace Government Attack Warning
id: eafe6f2b-cfec-4612-aec2-49563c33a087
status: experimental
description: Detects a login attempt in Google Workspace flagged as a potential attack by a government-backed threat actor
references:
    - https://cloud.google.com/logging/docs/audit/gsuite-audit-logging
    - https://cloud.google.com/logging/docs/audit/understanding-audit-logs
    - https://developers.google.com/workspace/admin/reports/v1/appendix/activity/login#gov_attack_warning
author: Tom Kluter
date: 2026-04-28
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.initial-access
    - attack.impact
    - attack.stealth
    - attack.t1078
logsource:
    product: gcp
    service: google_workspace.login
detection:
    selection:
        protoPayload.serviceName: 'login.googleapis.com'
        protoPayload.metadata.event.eventName: 'gov_attack_warning'
    condition: selection
falsepositives:
    - Unknown
level: medium
direct medium
Google Workspace Role Modified or Deleted
Detects when an a role is modified or deleted in Google Workspace.
status test author Austin Songer id 6aef64e3-60c6-4782-8db3-8448759c714e license Sigma · DRL-1.1
view Sigma YAML 
title: Google Workspace Role Modified or Deleted
id: 6aef64e3-60c6-4782-8db3-8448759c714e
status: test
description: Detects when an a role is modified or deleted in Google Workspace.
references:
    - https://cloud.google.com/logging/docs/audit/gsuite-audit-logging#3
    - https://developers.google.com/admin-sdk/reports/v1/appendix/activity/admin-delegated-admin-settings
author: Austin Songer
date: 2021-08-24
modified: 2023-10-11
tags:
    - attack.impact
logsource:
    product: gcp
    service: google_workspace.admin
detection:
    selection:
        eventService: admin.googleapis.com
        eventName:
            - DELETE_ROLE
            - RENAME_ROLE
            - UPDATE_ROLE
    condition: selection
falsepositives:
    - Unknown

level: medium
direct medium
Google Workspace Granted Domain API Access
Detects when an API access service account is granted domain authority.
status test author Austin Songer id 04e2a23a-9b29-4a5c-be3a-3542e3f982ba license Sigma · DRL-1.1
view Sigma YAML 
title: Google Workspace Granted Domain API Access
id: 04e2a23a-9b29-4a5c-be3a-3542e3f982ba
status: test
description: Detects when an API access service account is granted domain authority.
references:
    - https://cloud.google.com/logging/docs/audit/gsuite-audit-logging#3
    - https://developers.google.com/admin-sdk/reports/v1/appendix/activity/admin-domain-settings#AUTHORIZE_API_CLIENT_ACCESS
author: Austin Songer
date: 2021-08-23
modified: 2023-10-11
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1098
logsource:
    product: gcp
    service: google_workspace.admin
detection:
    selection:
        eventService: admin.googleapis.com
        eventName: AUTHORIZE_API_CLIENT_ACCESS
    condition: selection
falsepositives:
    - Unknown

level: medium
direct medium
Google Workspace User Granted Admin Privileges
Detects when an Google Workspace user is granted admin privileges.
status test author Austin Songer id 2d1b83e4-17c6-4896-a37b-29140b40a788 license Sigma · DRL-1.1
view Sigma YAML 
title: Google Workspace User Granted Admin Privileges
id: 2d1b83e4-17c6-4896-a37b-29140b40a788
status: test
description: Detects when an Google Workspace user is granted admin privileges.
references:
    - https://cloud.google.com/logging/docs/audit/gsuite-audit-logging#3
    - https://developers.google.com/admin-sdk/reports/v1/appendix/activity/admin-user-settings#GRANT_ADMIN_PRIVILEGE
author: Austin Songer
date: 2021-08-23
modified: 2023-10-11
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1098
logsource:
    product: gcp
    service: google_workspace.admin
detection:
    selection:
        eventService: admin.googleapis.com
        eventName:
            - GRANT_DELEGATED_ADMIN_PRIVILEGES
            - GRANT_ADMIN_PRIVILEGE
    condition: selection
falsepositives:
    - Google Workspace admin role privileges, may be modified by system administrators.
level: medium
direct medium
Google Workspace Application Removed
Detects when an an application is removed from Google Workspace.
status test author Austin Songer id ee2803f0-71c8-4831-b48b-a1fc57601ee4 license Sigma · DRL-1.1
view Sigma YAML 
title: Google Workspace Application Removed
id: ee2803f0-71c8-4831-b48b-a1fc57601ee4
status: test
description: Detects when an an application is removed from Google Workspace.
references:
    - https://cloud.google.com/logging/docs/audit/gsuite-audit-logging#3
    - https://developers.google.com/admin-sdk/reports/v1/appendix/activity/admin-domain-settings?hl=en#REMOVE_APPLICATION
    - https://developers.google.com/admin-sdk/reports/v1/appendix/activity/admin-domain-settings?hl=en#REMOVE_APPLICATION_FROM_WHITELIST
author: Austin Songer
date: 2021-08-26
modified: 2023-10-11
tags:
    - attack.impact
logsource:
    product: gcp
    service: google_workspace.admin
detection:
    selection:
        eventService: admin.googleapis.com
        eventName:
            - REMOVE_APPLICATION
            - REMOVE_APPLICATION_FROM_WHITELIST
    condition: selection
falsepositives:
    - Application being removed may be performed by a System Administrator.
level: medium
direct medium
Google Workspace Application Access Level Modified
Detects when an access level is changed for a Google workspace application. An access level is part of BeyondCorp Enterprise which is Google Workspace's way of enforcing Zero Trust model. An adversary would be able to remove access levels to gain easier access to Google workspace resources.
status test author Bryan Lim id 22f2fb54-5312-435d-852f-7c74f81684ca license Sigma · DRL-1.1
view Sigma YAML 
title: Google Workspace Application Access Level Modified
id: 22f2fb54-5312-435d-852f-7c74f81684ca
status: test
description: |
    Detects when an access level is changed for a Google workspace application.
    An access level is part of BeyondCorp Enterprise which is Google Workspace's way of enforcing Zero Trust model.
    An adversary would be able to remove access levels to gain easier access to Google workspace resources.
references:
    - https://developers.google.com/admin-sdk/reports/v1/appendix/activity/admin-application-settings
    - https://support.google.com/a/answer/9261439
author: Bryan Lim
date: 2024-01-12
tags:
    - attack.persistence
    - attack.privilege-escalation
    - attack.t1098.003
logsource:
    product: gcp
    service: google_workspace.admin
detection:
    selection:
        eventService: 'admin.googleapis.com'
        eventName: 'CHANGE_APPLICATION_SETTING'
        setting_name|startswith: 'ContextAwareAccess'
    condition: selection
falsepositives:
    - Legitimate administrative activities changing the access levels for an application
level: medium
direct medium
Google Workspace MFA Disabled
Detects when multi-factor authentication (MFA) is disabled.
status test author Austin Songer id 780601d1-6376-4f2a-884e-b8d45599f78c license Sigma · DRL-1.1
view Sigma YAML 
title: Google Workspace MFA Disabled
id: 780601d1-6376-4f2a-884e-b8d45599f78c
status: test
description: Detects when multi-factor authentication (MFA) is disabled.
references:
    - https://cloud.google.com/logging/docs/audit/gsuite-audit-logging#3
    - https://developers.google.com/admin-sdk/reports/v1/appendix/activity/admin-security-settings#ENFORCE_STRONG_AUTHENTICATION
    - https://developers.google.com/admin-sdk/reports/v1/appendix/activity/admin-security-settings?hl=en#ALLOW_STRONG_AUTHENTICATION
author: Austin Songer
date: 2021-08-26
modified: 2023-10-11
tags:
    - attack.impact
logsource:
    product: gcp
    service: google_workspace.admin
detection:
    selection_base:
        eventService: admin.googleapis.com
        eventName:
            - ENFORCE_STRONG_AUTHENTICATION
            - ALLOW_STRONG_AUTHENTICATION
    selection_eventValue:
        new_value: 'false'
    condition: all of selection*
falsepositives:
    - MFA may be disabled and performed by a system administrator.
level: medium
direct medium
Google Workspace Role Privilege Deleted
Detects when an a role privilege is deleted in Google Workspace.
status test author Austin Songer id bf638ef7-4d2d-44bb-a1dc-a238252e6267 license Sigma · DRL-1.1
view Sigma YAML 
title: Google Workspace Role Privilege Deleted
id: bf638ef7-4d2d-44bb-a1dc-a238252e6267
status: test
description: Detects when an a role privilege is deleted in Google Workspace.
references:
    - https://cloud.google.com/logging/docs/audit/gsuite-audit-logging#3
    - https://developers.google.com/admin-sdk/reports/v1/appendix/activity/admin-delegated-admin-settings
author: Austin Songer
date: 2021-08-24
modified: 2023-10-11
tags:
    - attack.impact
logsource:
    product: gcp
    service: google_workspace.admin
detection:
    selection:
        eventService: admin.googleapis.com
        eventName: REMOVE_PRIVILEGE
    condition: selection
falsepositives:
    - Unknown

level: medium
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