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Merge pull request #1581 from splunk/deleted_wrong_merged_detections
remove detections which was pushed to develop by accident
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@@ -1,53 +0,0 @@
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name: Gdrive suspictious file sharing
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id: b842f557-c7b3-4b92-aa34-8243217a6685
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version: 1
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date: '2021-08-19'
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author: Rod Soto, Splunk
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type: Anomaly
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datamodel:
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- Endpoint
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- Email
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- Updates
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description: This search can help the detection of compromised accounts or internal users sending malicious documents via GSuite file sharing.
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search: 'sourcetype="gsuite:drive:json" parameters.target_user=* name=change_user_access | spath "parameters.owner" | search "parameters.owner"="*" | stats count by src_ip parameters.owner parameters.target_user parameters.doc_type parameters.doc_title | `security_content_ctime(firstTime)`| `security_content_ctime(lastTime)`
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| `gdrive_suspicious_file_sharing_filter`'
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how_to_implement: To successfully implement this search, you need to be ingesting
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logs related to gsuite (gsuite:drive:json) having the file sharing metadata like file type, source owner, destination target user, description, etc.
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known_false_positives: This search will also produce normal activity statistics. Fields such as parameters.doc_type and parameters.doc_title may give away
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phishing intent.
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references:
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- https://www.csoonline.com/article/3274546/cybercriminals-impersonate-popular-file-sharing-services-to-take-over-email-accounts.html
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tags:
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analytic_story:
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- DevSecOps
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dataset:
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- UPDATE_DATASET_URL
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kill_chain_phases:
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- Exploitation
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mitre_attack_id:
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- T1566
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product:
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- Splunk Enterprise
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- Splunk Enterprise Security
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- Splunk Cloud
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required_fields:
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- parameters.target_user
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- parameters.owner
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security_domain: Cloud
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impact: 50
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confidence: 50
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# (impact * confidence)/100
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risk_score: 25
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context:
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- Source:Cloud
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- Stage:Initial Access
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message: N/A
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observable:
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- name: parameters.owner
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type: User
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role:
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- attacker
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- name: parameters.target_user
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type: User
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role:
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- Victim
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@@ -1,56 +0,0 @@
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name: GSuite suspicious calendar invite
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id: b842f557-c7b3-4b92-aa34-8243217a6685
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version: 1
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date: '2021-08-19'
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author: Rod Soto, Splunk
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type: Anomaly
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datamodel:
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- Endpoint
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- Email
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- Updates
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description: This search can help the detection of compromised accounts or internal users sending suspcious calendar invites via GSuite calendar. These
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invites may contain malicious links or attachments.
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search: 'sourcetype="gsuite:calendar:json" email=* parameters.event_title!=null | stats count by email ip_address source name parameters.api_kind parameters.event_title parameters.organizer_calendar_id parameters.target_calendar_id parameters.user_agent parameters.event_response_status | convert timeformat="%Y-%m-%dT%H:%M:%S" ctime(firstTime)
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| convert timeformat="%Y-%m-%dT%H:%M:%S" ctime(lastTime)| `gsuite_suspicious_calendar_invite_filter`'
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how_to_implement: To successfully implement this search, you need to be ingesting
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logs related to gsuite (gsuite:drive:json) having the file sharing metadata like file type, source owner, destination target user, description, etc.
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known_false_positives: This search will also produce normal activity statistics. Fields such as email, ip address, name, parameters.organizer_calendar_id, parameters.target_calendar_id and parameters.event_title may give away
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phishing intent.
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references:
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- https://www.techrepublic.com/article/how-to-avoid-the-dreaded-google-calendar-malicious-invite-issue/
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tags:
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analytic_story:
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- DevSecOps
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dataset:
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- UPDATE_DATASET_URL
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kill_chain_phases:
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- Exploitation
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mitre_attack_id:
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- T1566
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product:
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- Splunk Enterprise
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- Splunk Enterprise Security
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- Splunk Cloud
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required_fields:
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- email
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- parameters.organizer_calendar_id
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- parameters.target_calendar_id
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- parameters.event_title
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security_domain: Cloud
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impact: 50
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confidence: 50
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# (impact * confidence)/100
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risk_score: 25
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context:
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- Source:Cloud
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- Stage:Initial Access
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message: N/A
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observable:
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- name: parameters.organizer_calendar_id
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type: User
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role:
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- attacker
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- name: parameters.target_calendar_id
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type: User
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role:
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- Victim
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