GitHub Repo

O365 Sso Logon Errors

Date: 2021-02-01 ID: cc9b25d0-efc9-11eb-926b-550bf0943fbb Author: Patrick Bareiss Environment: attack_range Directory: o365_sso_logon_errors

Description

Multiple failed sso logins to O365

MITRE ATT&CK Techniques

ID Technique Tactic
T1556 Modify Authentication Process Credential Access, Defense Evasion, Persistence

Environment Details

Field Value
Environment attack_range
Directory o365_sso_logon_errors
Test Date 2021-02-01

Datasets

The following datasets were collected during this attack simulation:

O365_sso_logon_errors2-Json

  • Path: /datasets/attack_techniques/T1556/o365_sso_logon_errors/o365_sso_logon_errors2.json
  • Sourcetype: o365:management:activity
  • Source: o365

O365_sso_logon_errors-Json

  • Path: /datasets/attack_techniques/T1556/o365_sso_logon_errors/o365_sso_logon_errors.json
  • Sourcetype: o365:management:activity
  • Source: o365

The following detections in our security content repository use this attack data for testing:

Detection Name Type Source MITRE ATT&CK Analytic Story
O365 Excessive SSO logon errors Anomaly Cloud T1556 Office 365 Account Takeover, Cloud Federated Credential Abuse

Usage Instructions

Replay with Splunk Attack Data

Replay attack data with replay.py from Splunk Attack Data.

1python replay.py --dataset /datasets/attack_techniques/T1556/o365_sso_logon_errors/o365_sso_logon_errors2.json --index attack_data

Manual Import

  1. Download the dataset files from the paths listed above
  2. Configure your Splunk instance with the appropriate sourcetypes
  3. Import the logs using the Splunk Add Data wizard

Related Content

Find more detections and analytics for this attack technique in our security content repository.

Source: GitHub | Version: 1.0