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Daniel Jeremiah

@daniyyell
United KingdomTrusted contributorCompletionist
8 followers4,600 downloads2,430 copies68 likes128,312 views

978 detections

Targets service registration for msidiskserver or an ImagePath ending in fsdiskbit.sys. The UDM rule retains principal and target context for correlation.
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Daniel Jeremiah@daniyyell
Google SecOps
5 months ago
303
This rule detects unauthenticated POST requests to Serv-U that utilize 'deflate' content encoding, as described in a vendor advisory. It aims to identify exploitation attempts related to CVE-2026-28318 by filtering network events for specific HTTP POST request patterns. The XQL view retains actor and causality fields to aid in investigation.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
5 months ago
003
This rule detects the use of LdrCallEnclave, a function often associated with shellcode execution, when initiated by Python or an executable located in a user-writable temporary directory (e.g., Temp, AppData, ProgramData). The detection focuses on processes whose image name matches 'python', 'python3', or any executable name followed by '.exe', and whose path contains common temporary or user-writable directories. The rule specifically looks for 'ldrcallenclave' in the command line arguments, indicating potential malicious activity such as process injection or shellcode execution.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
5 months ago
003
This rule detects the creation of a file named 'notepadplusplus.dll' within the Microsoft Windows roaming profile path (AppData\Roaming\Microsoft\Windows). This activity is suspicious as Notepad++ DLLs are not typically found in this location and could indicate an attempt at DLL side-loading or other forms of execution hijacking.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
5 months ago
103
This rule detects the presence of the RawWNPF rootkit by searching for references to '\device\rawwnpf' or 'rawwnpf' in process command lines. It focuses on process events and provides causality fields for investigation.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
5 months ago
003
This rule detects the creation of a Run key or login persistence entry by an Electron or Node.js process, where the persistent application is located within the AppData\Local directory. It specifically looks for registry modifications that establish persistence for executables in user-specific application data folders, often indicative of malware or unwanted applications.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
5 months ago
003
This rule detects environment discovery activities that query Windows Defender PUA (Potentially Unwanted Application) policy settings and Windows product edition values. It specifically looks for commands executed via `reg.exe`, `powershell.exe`, `pwsh.exe`, or `wmic.exe` that contain keywords related to 'puaprotection', 'windows defender', 'productname', or 'editionid', especially when combined with 'enterprise'. The rule is designed to provide a causality view for investigation, linking the discovery activity to the initiating process.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
5 months ago
203
This rule detects attempts at path traversal within JRPC (JSON-RPC or RPC) requests targeting FortiSandbox, including plain, encoded, double-encoded, and mixed-separator path traversal patterns. It focuses on network events and provides causality fields for investigation.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
5 months ago
003
This rule detects the creation of an inbound firewall allow rule by `netsh` or `powershell` when the initiating process (actor) is launched from a user-writable location such as `temp`, `appdata`, `programdata`, or `users\public`. This behavior can indicate malicious activity where an adversary attempts to establish network access or persistence by modifying firewall settings from an unusual or untrusted execution path.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
5 months ago
213
This rule detects the creation or modification of files within the Windows Fonts directory that use specific naming conventions (starting with 'x1', 'kx1', or 'kw1') and have no file extension or a generic one. This pattern is often associated with malware attempting to hide encrypted data containers or malicious payloads by masquerading them as legitimate system files.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
5 months ago
103
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