Sigma Rules
3,132 rules found
Enable Local Manifest Installation With Winget
Detects changes to the AppInstaller (winget) policy. Specifically the activation of the local manifest installation, which allows a user to install new packages via custom manifests.
Winlogon AllowMultipleTSSessions Enable
Detects when the 'AllowMultipleTSSessions' value is enabled. Which allows for multiple Remote Desktop connection sessions to be opened at once. This is often used by attacker as a way to connect to an RDP session without disconnecting the other users
Winlogon Notify Key Logon Persistence
Adversaries may abuse features of Winlogon to execute DLLs and/or executables when a user logs in. Winlogon.exe is a Windows component responsible for actions at logon/logoff as well as the secure attention sequence (SAS) triggered by Ctrl-Alt-Delete.
Sysmon Configuration Change
Detects a Sysmon configuration change, which could be the result of a legitimate reconfiguration or someone trying manipulate the configuration
Sysmon Configuration Error
Detects when an adversary is trying to hide it's action from Sysmon logging based on error messages
Sysmon Configuration Modification
Detects when an attacker tries to hide from Sysmon by disabling or stopping it
Sysmon Blocked Executable
Triggers on any Sysmon "FileBlockExecutable" event, which indicates a violation of the configured block policy
Sysmon Blocked File Shredding
Triggers on any Sysmon "FileBlockShredding" event, which indicates a violation of the configured shredding policy.
Sysmon File Executable Creation Detected
Triggers on any Sysmon "FileExecutableDetected" event, which triggers every time a PE that is monitored by the config is created.
WMI Event Subscription
Detects creation of WMI event subscription persistence method
Suspicious Encoded Scripts in a WMI Consumer
Detects suspicious encoded payloads in WMI Event Consumers
Suspicious Scripting in a WMI Consumer
Detects suspicious commands that are related to scripting/powershell in WMI Event Consumers