Browse Rules

Search and filter across all detection sources

2,945 rules

sigma informational sigma

New Okta User Created

Detects new user account creation

synacktiv informational sigma

FortiManager File Download

Download of a file on FortiManager

synacktiv informational sigma

FortiManager FlatUI Login Success

Login Success via FlatUI on FortiManager

synacktiv informational sigma

FortiManager FlatUI Upload Success

Upload Success via FlatUI on FortiManager

synacktiv informational sigma

FortiManager Logout

User logout from FortiManager

synacktiv informational sigma

FortiManager WebSocket Connection

A WebSocket connection successfully opened on FortiManager

synacktiv informational sigma

FortiManager Low-privilege User Login Success

Successful login from a low-privilege user to FortiManager

hayabusa informational sigma

Failed Code Integrity Checks

Detects code integrity failures such as missing page hashes or corrupted drivers due unauthorized modification. This could be a sign of tampered binaries.

sigma informational sigma

Failed Code Integrity Checks

Detects code integrity failures such as missing page hashes or corrupted drivers due unauthorized modification. This could be a sign of tampered binaries.

hayabusa informational sigma

Suspicious High IntegrityLevel Conhost Legacy Option

ForceV1 asks for information directly from the kernel space. Conhost connects to the console application. High IntegrityLevel means the process is running with elevated privileges, such as an Administrator context.

hayabusa informational sigma

Suspicious High IntegrityLevel Conhost Legacy Option

ForceV1 asks for information directly from the kernel space. Conhost connects to the console application. High IntegrityLevel means the process is running with elevated privileges, such as an Administrator context.

sigma informational sigma

File and Directory Discovery - Linux

Detects usage of system utilities such as "find", "tree", "findmnt", etc, to discover files, directories and network shares.

sigma informational sigma

Suspicious High IntegrityLevel Conhost Legacy Option

ForceV1 asks for information directly from the kernel space. Conhost connects to the console application. High IntegrityLevel means the process is running with elevated privileges, such as an Administrator context.

sigma informational sigma

System Network Discovery - macOS

Detects enumeration of local network configuration

hayabusa informational sigma

Locked Workstation

Detects locked workstation session events that occur automatically after a standard period of inactivity.

sigma informational sigma

Locked Workstation

Detects locked workstation session events that occur automatically after a standard period of inactivity.

hayabusa informational sigma

New PowerShell Instance Created

Detects the execution of PowerShell via the creation of a named pipe starting with PSHost

sigma informational sigma

New PowerShell Instance Created

Detects the execution of PowerShell via the creation of a named pipe starting with PSHost

hayabusa informational sigma

Windows Defender Malware Detection History Deletion

Windows Defender logs when the history of detected infections is deleted.

sigma informational sigma

Windows Defender Malware Detection History Deletion

Windows Defender logs when the history of detected infections is deleted.

hayabusa informational sigma

Windows Update Error

Detects Windows update errors including installation failures and connection issues. Defenders should observe this in case critical update KBs aren't installed.

sigma informational sigma

Windows Update Error

Detects Windows update errors including installation failures and connection issues. Defenders should observe this in case critical update KBs aren't installed.

hayabusa informational sigma

New Application in AppCompat

A General detection for a new application in AppCompat. This indicates an application executing for the first time on an endpoint.

hayabusa informational sigma

New Application in AppCompat

A General detection for a new application in AppCompat. This indicates an application executing for the first time on an endpoint.

sigma informational sigma

New Application in AppCompat

A General detection for a new application in AppCompat. This indicates an application executing for the first time on an endpoint.