Product: Zendesk
Use-Case: Compromised Credentials
| Rules | Models | MITRE ATT&CK® TTPs | Activity Types | Parsers |
|---|---|---|---|---|
| 39 | 24 | 2 | 1 | 1 |
| Event Type | Rules | Models |
|---|---|---|
| app-activity | T1078 - Valid Accounts ↳ APP-UApp-F: First login or activity within an application for user ↳ APP-UApp-A: Abnormal login or activity within an application for user ↳ APP-AppU-F: First login to an application for a user with no history ↳ APP-F-SA-NC: New service account access to application ↳ APP-AppG-F: First login to an application for group ↳ APP-GApp-A: Abnormal login to an application for group ↳ APP-UTi: Abnormal user activity time ↳ APP-UAg-F: First user agent string for user ↳ APP-UAg-2: Second new user agent string for user ↳ APP-UAg-3: More than two new user agents used by the user in the same session ↳ APP-UOs-F: First os/browser combination for user ↳ APP-UsH-F: First source asset for user in application ↳ APP-UsH-A: Abnormal source asset for user in application ↳ APP-UOb-F: First access to application object for user ↳ APP-UOb-A: Abnormal access to application object for user ↳ APP-UappA-F: First application activity for user ↳ APP-UappA-A: Abnormal application activity for user ↳ APP-GappA-F: First application activity for peer group ↳ APP-GappA-A: Abnormal application activity for peer group ↳ APP-AA-F: First application activity in the organization ↳ APP-AA-A: Abnormal activity in application for the organization ↳ APP-UId-F: First use of client Id for user ↳ APP-IdU-F: Reuse of client Id ↳ APP-UMime-F: First mime type for user ↳ APP-UMime-A: Abnormal mime type for user ↳ APP-GMime-F: First mime type for peer group ↳ APP-GMime-A: Abnormal mime type for peer group ↳ APP-OMime-F: First mime type for organization ↳ APP-OMime-A: Abnormal mime type for organization ↳ APP-AppSz-F: First application access from network zone ↳ APP-AT-PRIV: Non-privileged user performing privileged application activity ↳ APP-AppED-F: New Email-domain found in application ↳ UA-UI-F: First activity from ISP ↳ UA-UC-new: Abnormal country for user by new user ↳ UA-GC-new: Abnormal country for group by new user ↳ UA-OC-new: Abnormal country for organization by new user ↳ UA-UC-Suspicious: Activity from suspicious country ↳ UA-UC-Two: Activity from two different countries ↳ UA-UC-Three: Activity from 3 different countries T1133 - External Remote Services ↳ UA-UI-F: First activity from ISP ↳ UA-UC-new: Abnormal country for user by new user ↳ UA-GC-new: Abnormal country for group by new user ↳ UA-OC-new: Abnormal country for organization by new user ↳ UA-UC-Suspicious: Activity from suspicious country ↳ UA-UC-Two: Activity from two different countries ↳ UA-UC-Three: Activity from 3 different countries |
• UA-OC: Countries for organization • UA-GC: Countries for peer groups • UA-UC: Countries for user activity • UA-UI-new: ISP of users during application activity • APP-AppED: Email-domains per application • APP-AT-PRIV: Privileged application activities • APP-AppSz: Source zones per application • APP-OMime: Mime types for organization • APP-GMime: Mime types per peer group • APP-UMime: Mime types per user • APP-IdU: User per Client Id • APP-UId: Client Id per User • APP-AA: Activity per application • APP-GappA: Application activity per peer group • APP-UappA: Application activity per user • APP-UOb: Application objects per user • APP-UsH: User's machines accessing applications • APP-UOs-New: OS and Browser from user agent • APP-UAg: User Agent Strings • APP-UTi: Application activity time for user • APP-GApp: Group Logons to Applications • APP-AppG: Groups per Application • APP-AppU: User Logons to Applications • APP-UApp: Applications per User |