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 InstallUtil Execution Suspiciously Omitting /logfile Output
Alert when InstallUtil.exe runs from .NET Framework with logging parameters indicating output suppression.
frack113, Huntrule TeamWindowsprocess_creationMedium133Free2022-01-23Windows PowerShell Scripts Testing Uncommon Port Connectivity via Test-NetConnection
Detects PowerShell scripts using Test-NetConnection to reach a target on non-443/80 ports.
frack113, Huntrule TeamWindowsps_scriptMedium121Free2022-01-23Windows PowerShell: Suspicious SslStream Client Certificate Validation in Script Block
Flags PowerShell scripts referencing SslStream and client-side certificate validation during SSL client authentication.
frack113, Huntrule TeamWindowsps_scriptLow203Free2022-01-23Windows PowerShell: WebRequest User-Agent Modification in ScriptBlockText
Detects PowerShell scripts that make web requests and set a custom -UserAgent value.
frack113, Huntrule TeamWindowsps_scriptMedium152Free2022-01-23Windows Office Macro File Creation Triggered by Script/LOLBin Parent Process
Alerts when macro-enabled Office files are created by common Windows script execution processes.
frack113, Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsfile_eventHigh193Free2022-01-23Windows Office Macro File Creation from Browser or Email Client
Flags Windows creation of macro-enabled Office files (.docm/.xlsm/.pptm) initiated by common browsers or email clients.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsfile_eventLow237Free2022-01-23Windows Office Macro File Creation via Office Applications
Alerts on creation of macro-enabled Office documents/templates by Office apps on Windows, excluding Office temporary files.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsfile_eventLow221Free2022-01-23Windows curl.exe Execution Using Custom User-Agent Flags
Flags Windows process launches of curl.exe with -A/--user-agent parameters to set a custom user agent.
frack113, Huntrule TeamWindowsprocess_creationMedium90Free2022-01-23Windows Registry: Internet Settings Zone and Cache-related Key Modifications
Flags registry writes to Windows Internet Settings-related keys that can be abused to alter zone trust or store persistence data.
frack113, Huntrule TeamWindowsregistry_setLow183Free2022-01-22Windows Registry Set to Hide File Extensions via Explorer Advanced Keys
Flags registry changes under Explorer Advanced that hide file extensions by setting specific DWORD values.
frack113, Huntrule TeamWindowsregistry_setMedium308Free2022-01-22Windows Registry: IE ZoneMap Domain Zone Change via ZoneMap\Domains
Flags Windows registry changes to IE ZoneMap domain entries that alter security zone assignments for targeted domains.
frack113, Huntrule TeamWindowsregistry_setMedium3510Free2022-01-22Radmin Viewer Utility Execution on Windows (Process Creation)
Alerts when Radmin Viewer (Radmin.exe) is launched, based on process metadata in Windows process creation logs.
frack113, Huntrule TeamWindowsprocess_creationMedium265Free2022-01-22Windows Network Connection Initiated by IMEWDBLD.EXE
Alerts when IMEWDBLD.EXE initiates a network connection on Windows.
frack113, Huntrule TeamWindowsnetwork_connectionHigh251Free2022-01-22Linux Auditd: Stop Firewalld, iptables, or UFW Services
Detects stopping firewall services (firewalld/iptables/ufw) on Linux via auditd service-stop events.
Pawel Mazur, Huntrule TeamLinuxauditdHigh263Free2022-01-22Windows: Suspicious colorcpl.exe file creation/copy to System32 spool drivers color
Alerts on colorcpl.exe creating files in C:\Windows\System32\spool\drivers\color\ with suspicious target filenames.
frack113, Huntrule TeamWindowsfile_eventHigh236Free2022-01-21