Splunk
AWS Bedrock Delete Knowledge Base
The following analytic identifies attempts to delete AWS Bedrock Knowledge Bases, which are resources that store and manage domain-specific information for AI models. (...)
Generic stable cloud_audit - AWS CloudTrail · AWS - mediumBhavin Patel, Splunk 2025-03-25 2026-05-13 8b4e3d62-f743-11ee-9f6e-acde48001123
2 AWS EFS Fileshare Mount Modified or Deleted
Detects when a EFS Fileshare Mount is modified or deleted. (...)
Generic test cloud_audit - AWS CloudTrail · AWS - mediumAustin Songer @austinsonger 2021-08-15 2022-10-09 6a7ba45c-63d8-473e-9736-2eaabff79964
1 AWS EKS Cluster Created or Deleted
Identifies when an EKS cluster is created or deleted.
Generic test cloud_audit - AWS CloudTrail · AWS - lowAustin Songer 2021-08-16 2022-10-09 33d50d03-20ec-4b74-a74e-1e65a38af1c0
1 Azure Container Registry Created or Deleted
Detects when a Container Registry is created or deleted.
Generic test cloud_audit - Azure Activity Logs · Azure - lowAustin Songer @austinsonger 2021-08-07 2022-08-23 93e0ef48-37c8-49ed-a02c-038aab23628e
4 Azure Device or Configuration Modified or Deleted
Identifies when a device or device configuration in azure is modified or deleted.
Generic test cloud_audit - Azure Activity Logs · Azure - mediumAustin Songer @austinsonger 2021-09-03 2022-10-09 46530378-f9db-4af9-a9e5-889c177d3881
1 Azure Kubernetes Cluster Created or Deleted
Detects when a Azure Kubernetes Cluster is created or deleted.
Generic test cloud_audit - Azure Activity Logs · Azure - lowAustin Songer @austinsonger 2021-08-07 2022-08-23 9541f321-7cba-4b43-80fc-fbd1fb922808
4 Azure Kubernetes Network Policy Change
Identifies when a Azure Kubernetes network policy is modified or deleted.
Generic test cloud_audit - Azure Activity Logs · Azure - mediumAustin Songer @austinsonger 2021-08-07 2022-08-23 08d6ac24-c927-4469-b3b7-2e422d6e3c43
4 Azure Kubernetes RoleBinding/ClusterRoleBinding Modified and Deleted
Detects the creation or patching of potential malicious RoleBinding/ClusterRoleBinding.
Generic test cloud_audit - Azure Activity Logs · Azure - mediumAustin Songer @austinsonger 2021-08-07 2022-08-23 25cb259b-bbdc-4b87-98b7-90d7c72f8743
4 Azure Kubernetes Secret or Config Object Access
Identifies when a Kubernetes account access a sensitive objects such as configmaps or secrets.
Generic test cloud_audit - Azure Activity Logs · Azure - mediumAustin Songer @austinsonger 2021-08-07 2022-08-23 7ee0b4aa-d8d4-4088-b661-20efdf41a04c
4 Azure Kubernetes Sensitive Role Access
Identifies when ClusterRoles/Roles are being modified or deleted.
Generic test cloud_audit - Azure Activity Logs · Azure - mediumAustin Songer @austinsonger 2021-08-07 2022-08-23 818fee0c-e0ec-4e45-824e-83e4817b0887
4 Azure Kubernetes Service Account Modified or Deleted
Identifies when a service account is modified or deleted.
Generic test cloud_audit - Azure Activity Logs · Azure - mediumAustin Songer @austinsonger 2021-08-07 2022-08-23 12d027c3-b48c-4d9d-8bb6-a732200034b2
4 Cisco File Deletion
See what files are being deleted from flash file systems
Generic test authentication - Cisco AAA · Cisco - mediumAustin Clark 2019-08-12 2023-01-04 71d65515-c436-43c0-841b-236b1f32c21e
- Splunk
Common Ransomware Extensions
The following analytic detects modifications to files with extensions commonly associated with ransomware. (...)
Generic stable file_event windows Sysmon - mediumDavid Dorsey, Michael Haag, Nasreddine Bencherchali, Splunk, Steven Dick 2019-10-16 2026-09-22 a9e5c5db-db11-43ca-86a8-c852d1b2c0ec
1 Splunk
Common Ransomware Notes
The following analytic detects the creation of files with names commonly associated with ransomware notes. (...)
Hunting stable file_event windows Sysmon - mediumDavid Dorsey, Splunk 2019-10-16 2026-07-02 ada0f478-84a8-4641-a3f1-d82362d6bd71
- DD File Overwrite
Detects potential overwriting and deletion of a file using DD.
Generic test process_creation linux Sysmon - lowRoberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research), MSTIC 2021-10-15 2022-07-07 2953194b-e33c-4859-b9e8-05948c167447
1 Deleted Data Overwritten Via Cipher.EXE
Detects usage of the "cipher" built-in utility in order to overwrite deleted data from disk. (...)
Generic test process_creation windows Sysmon · WinEventLog Security - mediumfrack113 2021-12-26 2023-02-21 4b046706-5789-4673-b111-66f25fe99534
1 Splunk
Detect DNS Query to Decommissioned S3 Bucket
This detection identifies DNS queries to domains that match previously decommissioned S3 buckets. (...)
Anomaly experimental dns windows Sysmon - mediumJose Hernandez, Splunk 2025-02-12 2026-05-13 2f1c5fd1-4b8a-4f5d-a0e9-7d6a8e2f5e1e
2 Splunk
Detect Web Access to Decommissioned S3 Bucket
This detection identifies web requests to domains that match previously decommissioned S3 buckets through web proxy logs. (...)
Anomaly experimental webserver - AWS - mediumJose Hernandez, Splunk 2025-02-12 2026-05-13 3a1d8f62-5b9c-4e7d-b8f3-9d6a8e2f5e1f
2 Splunk
Excessive File Deletion In WinDefender Folder
The following analytic detects excessive file deletion events in the Windows Defender folder. (...)
Generic stable file_event windows Sysmon - mediumTeoderick Contreras, Splunk, Steven Dick 2022-01-21 2026-05-13 b5baa09a-7a05-11ec-8da4-acde48001122
1 Fsutil Suspicious Invocation
Detects suspicious parameters of fsutil (deleting USN journal, configuring it with small size, etc). (...)
Generic stable process_creation windows Sysmon · WinEventLog Security - highEcco, E.M. Anhaus, oscd.community 2019-09-26 2023-09-09 add64136-62e5-48ea-807e-88638d02df1e
5 Splunk
GitHub Enterprise Remove Organization
The following analytic detects when a user removes an organization from GitHub Enterprise. (...)
Anomaly stable - - GitHub - mediumPatrick Bareiss, Splunk 2025-01-15 2026-05-13 94cb89aa-aec1-4585-91b1-affcdacf357e
2 Splunk
GitHub Enterprise Repository Archived
The following analytic detects when a repository is archived in GitHub Enterprise. (...)
Anomaly stable - - GitHub - mediumPatrick Bareiss, Splunk 2025-01-15 2026-05-13 8367cb99-bae1-4748-ae3b-0927bb381424
2 Splunk
GitHub Enterprise Repository Deleted
The following analytic detects when a user deletes a repository in GitHub Enterprise. (...)
Anomaly stable - - GitHub - mediumPatrick Bareiss, Splunk 2025-01-15 2026-05-13 f709e736-3e6c-492f-b865-bc7696cc24a7
2 Splunk
GitHub Organizations Repository Archived
The following analytic detects when a repository is archived in GitHub Organizations. (...)
Anomaly stable cloud_audit - GitHub - mediumPatrick Bareiss, Splunk 2025-01-15 2026-05-13 4f568a0e-896f-4d94-a2f7-fa6d82ab1f77
2 Splunk
GitHub Organizations Repository Deleted
The following analytic identifies when a repository is deleted within a GitHub organization. (...)
Anomaly stable cloud_audit - GitHub - mediumPatrick Bareiss, Splunk 2025-01-15 2026-05-13 9ff4ca95-fdae-4eea-9ffa-6d8e1c202a71
2 Splunk
Linux Account Manipulation Of SSH Config and Keys
The following analytic detects the deletion of SSH keys on a Linux machine. (...)
Anomaly stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 73a56508-1cf5-4df7-b8d9-5737fbdc27d2
1 Splunk
Linux Auditd Data Destruction Command
The following analytic detects the execution of a Unix shell command designed to wipe root directories on a Linux host. (...)
Generic stable process_creation linux Linux Auditd - mediumTeoderick Contreras, Splunk 2023-02-08 2026-05-13 4da5ce1a-f71b-4e71-bb73-c0a3c73f3c3c
2 Splunk
Linux Auditd Dd File Overwrite
The following analytic detects the use of the 'dd' command to overwrite files on a Linux system. (...)
Generic stable process_creation linux Linux Auditd - mediumTeoderick Contreras, Splunk 2024-08-09 2026-10-02 d1b74420-4cea-4752-a123-9b40dfcca49a
3 Splunk
Linux Auditd Shred Overwrite Command
The following analytic detects the execution of the 'shred' command on a Linux machine, which is used to overwrite files to make them unrecoverable. (...)
Generic stable process_creation linux Linux Auditd - mediumTeoderick Contreras, Splunk 2024-08-12 2026-05-13 ce2bde4d-a1d4-4452-8c87-98440e5adfb3
2 Splunk
Linux Data Destruction Command
The following analytic detects the execution of a Unix shell command designed to wipe root directories on a Linux host. (...)
Anomaly stable process_creation linux Sysmon - mediumTeoderick Contreras, Splunk 2023-02-08 2026-09-01 b11d3979-b2f7-411b-bb1a-bd00e642173b
2 Splunk
Linux DD File Overwrite
The following analytic detects the use of the 'dd' command to overwrite files on a Linux system. (...)
Generic stable process_creation linux Sysmon - mediumTeoderick Contreras, Splunk 2022-02-15 2026-10-02 9b6aae5e-8d85-11ec-b2ae-acde48001122
3 Splunk
Linux Deleting Critical Directory Using RM Command
The following analytic detects the deletion of critical directories on a Linux machine using the `rm` command with argument rf. (...)
Generic stable process_creation linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-26 2026-05-13 33f89303-cc6f-49ad-921d-2eaea38a6f7a
2 Splunk
Linux Deletion Of Cron Jobs
The following analytic detects the deletion of cron jobs on a Linux machine. (...)
Anomaly stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 3b132a71-9335-4f33-9932-00bb4f6ac7e8
1 Splunk
Linux Deletion Of Init Daemon Script
The following analytic detects the deletion of init daemon scripts on a Linux machine. (...)
Generic stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 729aab57-d26f-4156-b97f-ab8dda8f44b1
1 Splunk
Linux Deletion Of Services
The following analytic detects the deletion of services on a Linux machine. (...)
Generic stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 b509bbd3-0331-4aaa-8e4a-d2affe100af6
3 Splunk
Linux Deletion of SSL Certificate
The following analytic detects the deletion of SSL certificates on a Linux machine. (...)
Anomaly stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 839ab790-a60a-4f81-bfb3-02567063f615
1 Splunk
Linux High Frequency Of File Deletion In Boot Folder
The following analytic detects a high frequency of file deletions in the /boot/ folder on Linux systems. (...)
Generic stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 e27fbc5d-0445-4c4a-bc39-87f060d5c602
2 Splunk
Linux High Frequency Of File Deletion In Etc Folder
The following analytic detects a high frequency of file deletions in the /etc/ folder on Linux systems. (...)
Anomaly stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 9d867448-2aff-4d07-876c-89409a752ff8
1 Splunk
Linux Shred Overwrite Command
The following analytic detects the execution of the 'shred' command on a Linux machine, which is used to overwrite files to make them unrecoverable. (...)
Generic stable process_creation linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-26 2026-05-13 c1952cf1-643c-4965-82de-11c067cbae76
2 Microsoft 365 - Unusual Volume of File Deletion
Detects when a Microsoft Cloud App Security reported a user has deleted a unusual a large volume of files.
Generic test - - Azure Threat Management · Microsoft 365 - mediumaustinsonger 2021-08-19 2022-10-09 78a34b67-3c39-4886-8fb4-61c46dc18ecd
2 Splunk
Microsoft Intune Bulk Wipe
The following analytic detects a high volume of "wipe ManagedDevice" events from the Intune admin portal (5+ per hour by default). (...)
Generic stable cloud_audit - Azure - mediumJake Enea 2026-04-15 2026-05-13 c3f48aa9-878e-443f-8889-e42a11a9bea9
3 MSSQL Destructive Query
Detects the invocation of MS SQL transactions that are destructive towards table or database data, such as "DROP TABLE" or "DROP DATABASE".
Generic experimental - windows WinEventLog Application - mediumDaniel Degasperi '@d4ns4n_' 2025-06-04 — 00321fee-ca72-4cce-b011-5415af3b9960
3 Splunk
O365 Email Hard Delete Excessive Volume
The following analytic identifies when an O365 email account hard deletes an excessive number of emails within a short period (within 1 hour). (...)
Anomaly stable cloud_audit - Microsoft 365 - mediumSteven Dick 2025-01-23 2026-05-13 c7fe0949-348a-41ce-8f17-a09a7fe5fd7d
3 Splunk
O365 Email Password and Payroll Compromise Behavior
The following analytic identifies when an O365 email recipient receives and then deletes emails for the combination of both password and banking/payroll changes within a short period. (...)
Generic stable email - Microsoft 365 - mediumSteven Dick 2025-01-23 2026-09-23 e36de71a-6bdc-4002-98ff-e3e51b0d8f96
3 Splunk
O365 Email Receive and Hard Delete Takeover Behavior
The following analytic identifies when an O365 email recipient receives and then deletes emails related to password or banking/payroll changes within a short period. (...)
Anomaly stable email - Microsoft 365 - mediumSteven Dick 2025-01-23 2026-09-23 b66aeaa4-586f-428b-8a2b-c4fd3039d8d3
3 Splunk
O365 Email Send and Hard Delete Exfiltration Behavior
The following analytic identifies when an O365 email account sends and then hard deletes an email to an external recipient within a short period (within 1 hour). (...)
Anomaly stable email - Microsoft 365 - mediumSteven Dick 2025-01-23 2026-09-23 dd7798cf-c4f5-4114-ad0f-beacd9a33708
3 Splunk
O365 Email Send and Hard Delete Suspicious Behavior
The following analytic identifies when an O365 email account sends and then hard deletes email with within a short period (within 1 hour). (...)
Anomaly stable cloud_audit - Microsoft 365 - mediumSteven Dick 2025-01-23 2026-05-13 c97b3d72-0a47-46f9-b742-b89f1cc2d551
3 Splunk
O365 Email Send Attachments Excessive Volume
The following analytic identifies when an O365 email account sends an excessive number of email attachments to external recipients within a short period (within 1 hour). (...)
Anomaly stable email - Microsoft 365 - mediumSteven Dick 2025-01-23 2026-09-23 70a050a2-8537-488a-a628-b60a9558d96a
3 Overwriting the File with Dev Zero or Null
Detects overwriting (effectively wiping/deleting) of a file.
Generic stable process_creation linux Linux Auditd - lowJakob Weinzettl, oscd.community 2019-10-23 — 37222991-11e9-4b6d-8bdf-60fbe48f753e
1 Potential BlackByte Ransomware Activity
Detects command line patterns used by BlackByte ransomware in different operations
Emerging test process_creation windows Sysmon · WinEventLog Security - highFlorian Roth (Nextron Systems) 2022-02-25 2023-02-08 999e8307-a775-4d5f-addc-4855632335be
1