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.
6,158 rules
Windows Sysinternals PsSuspend Process Execution
Alerts on execution of Sysinternals PsSuspend on Windows via process creation events.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsprocess_creationMedium210Free2023-03-23Windows DLL sideloading: iviewers.dll loaded from non-Windows Kits paths
Alerts on unexpected loads of iviewers.dll outside Windows Kits paths, consistent with DLL sideloading attempts.
X__Junior (Nextron Systems), Huntrule TeamWindowsimage_loadHigh283Free2023-03-21Windows PowerShell File Dropper Activity: Creating Executables or Script Files
Alerts when PowerShell writes .exe/.dll or script-like files, consistent with binary/script staging or dropping.
frack113, Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsfile_eventMedium261Free2023-03-17Windows svchost.exe Spawning rundll32.exe with WebDav davclnt.dll DavSetCookie
Alerts on svchost.exe launching rundll32.exe to run davclnt.dll DavSetCookie for WebDav over a non-local IP.
Nasreddine Bencherchali (Nextron Systems), Florian Roth (Nextron Systems), Huntrule TeamWindowsprocess_creationHigh241Free2023-03-16Windows Registry: Hypervisor Enforced Code Integrity Enabled DWORD Set to 0
Alerts when HVCI-related registry values are set to 0, indicating Hypervisor Enforced Code Integrity has been disabled.
Nasreddine Bencherchali (Nextron Systems), Anish Bogati, Huntrule TeamWindowsregistry_setHigh211Free2023-03-14Windows Process Creation: Sysinternals ADExplorer Snapshot Exports Active Directory Database
Flags Sysinternals ADExplorer running with -snapshot to export an Active Directory database to suspicious local directories.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsprocess_creationHigh319Free2023-03-14Windows: Sysinternals ADExplorer invoked with snapshot flag to create AD database snapshot
Flags Sysinternals ADExplorer running with "snapshot" to create a local Active Directory database copy.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsprocess_creationMedium170Free2023-03-14Windows AD Structure Export Using ldifde.exe with -f
Flags ldifde.exe executions using -f that indicate Active Directory structure export from a Windows host.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsprocess_creationMedium213Free2023-03-14Windows Process Creation: dotnet-dump.exe collect Flag
Flags dotnet-dump.exe executions using the collect parameter, which may indicate memory dumping of sensitive processes.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsprocess_creationMedium332Free2023-03-14Windows: Detect csvde.exe Active Directory export to CSV
Flags csvde.exe executions on Windows that include -f, consistent with exporting Active Directory data for discovery.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsprocess_creationMedium387Free2023-03-14Windows Registry Event for Potential Qakbot/IceID Persistence Key
Alerts on Windows registry events referencing a specific \\Software\\firm\\soft\\Name key suffix linked to Qakbot/IceID-like activity.
Hieu Tran, Huntrule TeamWindowsregistry_eventHigh272Free2023-03-13Windows Rundll32 Execution Masquerading as Image Files via Image Extensions
Flags rundll32.exe executions whose command line references image file extensions used for DLL masquerading.
Hieu Tran, Huntrule TeamWindowsprocess_creationHigh201Free2023-03-13Windows PowerShell Downloading DLLs via Invoke-WebRequest or Invoke-RestMethod
Alerts on PowerShell using web request cmdlets to download an HTTP DLL to disk.
Florian Roth (Nextron Systems), Hieu Tran, Huntrule TeamWindowsprocess_creationMedium150Free2023-03-13PowerShell GzipStream Decompression Attempts on Windows
Detects Windows PowerShell commands using GZipStream and ::Decompress to decompress encoded Gzip data.
Hieu Tran, Huntrule TeamWindowsprocess_creationMedium253Free2023-03-13Windows Wazuh Platform DLL Side-Loading via ImageLoad of libwazuhshared.dll
Alerts on suspicious loading of Wazuh platform DLLs in Windows image load telemetry, excluding common Program Files and Mingw64 patterns.
X__Junior (Nextron Systems), Huntrule TeamWindowsimage_loadMedium251Free2023-03-13