Google Workspace Role Modified

 1[metadata]
 2creation_date = "2020/11/17"
 3integration = ["google_workspace"]
 4maturity = "production"
 5min_stack_comments = "Breaking changes for Google Workspace integration."
 6min_stack_version = "8.4.0"
 7updated_date = "2023/04/12"
 8
 9[rule]
10author = ["Elastic"]
11description = """
12Detects when a custom admin role or its permissions are modified. An adversary may modify a custom admin role in order
13to elevate the permissions of other user accounts and persist in their target’s environment.
14"""
15false_positives = [
16    """
17    Google Workspace admin roles may be modified by system administrators. Verify that the configuration change was
18    expected. Exceptions can be added to this rule to filter expected behavior.
19    """,
20]
21from = "now-130m"
22index = ["filebeat-*", "logs-google_workspace*"]
23interval = "10m"
24language = "kuery"
25license = "Elastic License v2"
26name = "Google Workspace Role Modified"
27note = """## Setup
28
29The Google Workspace Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.
30
31### Important Information Regarding Google Workspace Event Lag Times
32- As per Google's documentation, Google Workspace administrators may observe lag times ranging from minutes up to 3 days between the time of an event's occurrence and the event being visible in the Google Workspace admin/audit logs.
33- This rule is configured to run every 10 minutes with a lookback time of 130 minutes.
34- To reduce the risk of false negatives, consider reducing the interval that the Google Workspace (formerly G Suite) Filebeat module polls Google's reporting API for new events.
35- By default, `var.interval` is set to 2 hours (2h). Consider changing this interval to a lower value, such as 10 minutes (10m).
36- See the following references for further information:
37  - https://support.google.com/a/answer/7061566
38  - https://www.elastic.co/guide/en/beats/filebeat/current/filebeat-module-google_workspace.html"""
39references = ["https://support.google.com/a/answer/2406043?hl=en"]
40risk_score = 47
41rule_id = "6f435062-b7fc-4af9-acea-5b1ead65c5a5"
42severity = "medium"
43tags = ["Elastic", "Cloud", "Google Workspace", "Continuous Monitoring", "SecOps", "Identity and Access"]
44timestamp_override = "event.ingested"
45type = "query"
46
47query = '''
48event.dataset:google_workspace.admin and event.provider:admin and event.category:iam and event.action:(ADD_PRIVILEGE or UPDATE_ROLE)
49'''
50
51
52[[rule.threat]]
53framework = "MITRE ATT&CK"
54[[rule.threat.technique]]
55id = "T1098"
56name = "Account Manipulation"
57reference = "https://attack.mitre.org/techniques/T1098/"
58
59
60[rule.threat.tactic]
61id = "TA0003"
62name = "Persistence"
63reference = "https://attack.mitre.org/tactics/TA0003/"