Sigma detection rules, expert-reviewed
Each one is checked against the reporting it came from before it is published, and shows the ATT&CK technique it covers, the telemetry it needs and where it falls short.
3,626 rules
Windows: File creation of C:\program.exe enabling unquoted service path execution
Flags creation of C:\program.exe that can be used to hijack unquoted Windows service binary paths.
frack113, Huntrule TeamWindowsfile_eventHigh508Free2021-12-30Windows: Suspicious .SCR Screensaver File Creation
Alerts on creation of new .scr screensaver binaries on Windows, excluding known benign paths and a specific TiWorker case.
frack113, Huntrule TeamWindowsfile_eventMedium122Free2021-12-29Windows File Creation: Custom Application Shim Database Files Created
Flags creation of custom Application Shim database files in AppPatch custom directories on Windows.
frack113, Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsfile_eventMedium583Free2021-12-29Windows Registry Changes to Outlook Security Settings
Alerts on registry updates to Outlook security configuration keys on Windows, excluding direct Outlook.exe changes.
frack113, Huntrule TeamWindowsregistry_setMedium132Free2021-12-28Windows Registry Startup: Chrome VPN Extensions Installed via Extension Registry Keys
Flags Windows Registry updates that register VPN/proxy Chrome extensions via the Chrome Extensions update_url key.
frack113, Huntrule TeamWindowsregistry_setHigh181Free2021-12-28Windows Process Creation: Suspicious Kernel Dump via dtrace.exe lkd(0) and syscall:::return
Alerts on Windows process executions of dtrace.exe with command lines consistent with kernel dumping (lkd).
Florian Roth (Nextron Systems), Huntrule TeamWindowsprocess_creationHigh436Free2021-12-28PowerShell ScriptBlock Requesting Kerberos Tickets via System.IdentityModel.Tokens.KerberosRequestorSecurityToken
Alerts on PowerShell ScriptBlock text that builds Kerberos ticket requests using KerberosRequestorSecurityToken and .GetRequest().
frack113, Huntrule TeamWindowsps_scriptHigh242Free2021-12-28PowerShell Script Blocks Register Malicious XLL via Office COM Automation on Windows
Detects PowerShell Script Block content that uses COM automation to call .RegisterXLL for an Office XLL add-in.
frack113, Huntrule TeamWindowsps_scriptHigh514Free2021-12-28Windows PowerShell Local User Account Manipulation via Script Block Logging
Alerts when PowerShell script blocks invoke local user management cmdlets that can be used to maintain persistence.
frack113, Huntrule TeamWindowsps_scriptMedium339Free2021-12-28PowerShell AD Account Creation Library Usage via AccountManagement Namespace on Windows
Alert on PowerShell Script Block content referencing System.DirectoryServices.AccountManagement, indicating potential AD principal manipulation.
frack113, Huntrule TeamWindowsps_scriptMedium351Free2021-12-28PowerShell Scheduled Task Creation via ScriptBlock Logging
Identifies PowerShell script blocks that create and register scheduled tasks using TaskScheduler cmdlets or CIM WMI method calls.
frack113, Huntrule TeamWindowsps_scriptMedium102Free2021-12-28Windows PowerShell Screen Capture via CopyFromScreen
Flags PowerShell scripts containing .CopyFromScreen, indicative of desktop screen capture activity.
frack113, Huntrule TeamWindowsps_scriptMedium141Free2021-12-28Windows Suspicious File Downloads from Outlook/OneNote Attachment Domains via Command-Line
Flags Windows command-line downloads using curl/wget or PowerShell from Outlook/OneNote attachment domains.
Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsprocess_creationHigh230Free2021-12-27Windows Process Execution of Hashcat.exe for Password Cracking
Alerts on Hashcat.exe launched with cracking-focused flags targeting an offline SAM-derived dataset.
frack113, Huntrule TeamWindowsprocess_creationHigh469Free2021-12-27Windows: Findstr searches GPP cpassword in SYSVOL XML
Alerts when Windows findstr/find searches SYSVOL XML files for GPP cpassword.
frack113, Huntrule TeamWindowsprocess_creationHigh497Free2021-12-27