Downloadable rule updates

8.8.15

28 Nov 2023

2

67

This release includes a new Windows and a new Okta rule. The new rule for Windows checks for the first time one has seen a NewCredentials logon process. The Okta rule is a detection for phishing using FastPass.

8.8.14

14 Nov 2023

2

366

This release includes new machine learning and Linux rules. New rules for Linux include detection for suspicious network connections via Kworker, kernel ring buffer manipulation and driver loading. Additionally, significant rule tuning for Windows, Linux and macOS rules has been added for better rule efficacy.

8.8.13

24 Oct 2023

9

279

This release includes new rules for Windows and Linux. New rules for Windows include detection for image loading with invalid signatures. Linux rules include additional detection for suspicious Unix socket connections, privilege esvalation via cap_setuid and reverse shells. Several building block rules have been added for Linux and Windows regarding user entity behavior. Additionally, lucene queries using boolean logic have been updated to use uppercase operators.

8.8.12

14 Oct 2023

8

56

This release includes new rules for GitHub, Windows and Linux. New rules for GitHub include detection for organization wide applications and new repository owners. Linux rules include detection for CVE-2023-4911 and CVE-2023-38646 exploitation and reverse shells via background processes. Windows rules include detection for suspicious file extensions and user enumeration. Additionally, significant rule tuning for Windows PowerShell and Microsoft Build Engine rules has been added for better rule efficacy.

8.8.11

18 Sep 2023

5

7

This release includes new rules for Windows, Linux and Github. Github rules have officially been added to the prebuilt rules package. New rules for Windows include additional detection for suspicious shorcut files, WMI execution and persistence via Office documents. Regarding, Linux include additional detection for reverse shells via UDP and Meterpreter. Windows rules have been tuned for better rule efficacy.

8.8.10

07 Sep 2023

14

505

This release includes new rules for Windows, Linux and macOS. New rules for Windows include additional detection for LOLBins, credential access and defense evasion. Regarding, Linux include additional detection for privilege escalation, user enumeration and anomalous binary execution. New detection for macOS includes trap signal execution, hidden files and suspicious process relationships. Additionally, significant rule tuning for Windows and Linux rules has been added for better rule efficacy.

8.8.9

17 Aug 2023

10

29

This release includes new Linux rules for detecting additional privilege escalation and enumeration techniques. Additionally, a Windows rule has been added to detection PowerShell script execution with Webcam access. The Suspicious Network Connection Attempt by Root Linux rule has been deprecated in favor of the new privilege escalation rules. Rule tuning for Windows and Linux rules has been added for better rule efficacy.

8.8.8

02 Aug 2023

7

62

This release includes new building block rules for Windows and Linux. Additionally, threat intel indicator rules have been deprecated in favor of new categorized indicator rules. Windows, Linux and Kubernetes rules have been tuned for better rule efficacy.

8.8.7

14 Jul 2023

20

28

This release includes new rules for Linux regarding reverse shells, credential access and reconnaissance. Additionally, Windows rules for PowerShell and WMI abuse have been tuned for better rule efficacy. Linux rule tuning included detection for shadow files, abnormal PID relationships and brute forcing attempts.

8.8.6

29 Jun 2023

4

8

This release includes new Threat Indicator rules for IP addresses, domains, URLs, file hashes and Windows registry keys. Additionally, Windows rules for PowerShell abuse have been tuned for better rule efficacy.

8.8.5

28 Jun 2023

8

798

This release includes new Linux rules for detecting additional privilege escalation and enumeration techniques. Additionally, a new cross-platform rule for detecting command-and-control to Google Drive has been added. All rule tags have been adjusted to key value pairs for better rule searching and filtering in the Kibana UI. All network rules have been adjusted to query the network packet capture data indices. Rule tuning for Windows and Linux rules has been added for better rule efficacy.

8.8.4

14 Jun 2023

3

4

This release includes rule tuning for Windows rules for better rule efficacy. Rules tuned include WMI lateral movement, PowerShell Engine ImageLoad and unusual files created from alternate data streams. New Linux rules regarding suspicious process and Systemd service or timer relationships have been added.

8.8.3

01 Jun 2023

1

35

This release includes a new Linux rule for SSH brute force detection. Additionally, new investigation guides for Google Workspace and Windows rules have been added. Rule tuning for Linux, Google Workspace and Windows rules have been added for better rule efficacy.

8.8.2

19 May 2023

19

47

This release includes new rules for Linux, Windows, Kubernetes and Containers. New rules for Linux include detection for ransomware, credential dumping and web server exploitation. New Terms rules have been added for Linux to detect persistence techniques. A rule to detect web shells in Linux has been deprecated in favor of the new web server exploitation rule. Another rule to detect commonly abused remote administration tools on Windows has also been added. New rules for Kubernetes and Containers leverage the new Defend for Containers and Kubernetes integrations. Additionally, significant rule tuning for Windows, AWS and Linux rules has been added for better rule efficacy.

8.8.1

27 Apr 2023

10

14

This release includes new rules for Windows, Linux, Google Workspace and ESXI. Additionally, significant rule tuning for Windows, Linux and Google Workspace has been added for better rule efficacy. Detection logic for Linux shell breakouts, Windows process injection and credential access has been improved. A Google Workspace rule has been added to detect potential phishing with Google Apps Script. Several ESXI rules have been added to detect discovery commands, timestomping and suspicious processes. A new promotional rule to promote alerts from the Cloud Defend integration has been added regarding container security.