Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

2,112 detections

Detects applications being added to the "allowed applications" list of exploit guard in order to bypass controlled folder settings
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects when an attacker modifies values of the Disk Cleanup Handler in the registry to achieve persistence via autorun.
The disk cleanup manager is part of the operating system.
It displays the dialog box […] The user has the option of enabling or disabling individual handlers by selecting or clearing their check box in the disk cleanup manager's UI.
Although Windows comes with a number of disk cleanup handlers, they aren't designed to handle files produced by other applications.
Instead, the disk cleanup manager is designed to be flexible and extensible by enabling any developer to implement and register their own disk cleanup handler.
Any developer can extend the available disk cleanup services by implementing and registering a disk cleanup handler.
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects tampering with the "Enabled" registry key in order to disable Windows logging of a Windows event channel
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects registry persistence technique using the GlobalFlags and SilentProcessExit keys
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects registry changes to Microsoft Office "VBAWarning" to a value of "1" which enables the execution of all macros, whether signed or unsigned.
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects the registration of a new ODBC driver where the driver is located in a potentially suspicious location
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects the enabling of the PowerShell script execution policy. Once enabled, this policy allows scripts to be executed.
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects registry changes to Microsoft Office "AccessVBOM" to a value of "1" which disables trust access for VBA on the victim machine and lets attackers execute malicious macros without any Microsoft Office warnings.
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects modification of autostart extensibility point (ASEP) in registry.
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects changes to the "ServiceDLL" value related to a service in the registry.
This is often used as a method of persistence.
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects tampering with the "ChannelAccess" registry key in order to change access to Windows event channel.
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects when an attacker tries to disable User Account Control (UAC) notification by tampering with the "UACDisableNotify" value.
UAC is a critical security feature in Windows that prevents unauthorized changes to the operating system. It prompts the user for permission or an administrator password before allowing actions that could affect the system's operation or change settings that affect other users.
When "UACDisableNotify" is set to 1, UAC prompts are suppressed.
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects changes to the registry values related to outlook security settings
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by application shims.
The Microsoft Windows Application Compatibility Infrastructure/Framework (Application Shim) was created to allow for backward compatibility of software as the operating system codebase changes over time
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects changes to the "DisableRestrictedAdmin" registry value in order to disable or enable RestrictedAdmin mode.
RestrictedAdmin mode prevents the transmission of reusable credentials to the remote system to which you connect using Remote Desktop.
This prevents your credentials from being harvested during the initial connection process if the remote server has been compromise
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects potential persistence activity via the registering of a new custom protocole handlers. While legitimate applications register protocole handlers often times during installation. And attacker can abuse this by setting a custom handler to be used as a persistence mechanism.
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
This rule detects that the path to the DLL written in the registry is different from the default one. Launched WAB.exe tries to load the DLL from Registry.
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects the disabling of the Windows Defender eventlog as seen in relation to Lockbit 3.0 infections
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects changes to the PowerShell execution policy in order to bypass signing requirements for script execution
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
Detects changes to the Netsh registry key to add a new DLL value that is located on a suspicious location. This change might be an indication of a potential persistence attempt by adding a malicious Netsh helper
Yamato Security Hayabusa@YamatoSecurityHayabusa
avatar
Yamato Security Hayabusa Rules
1 year ago
004
Detects non-sysinternals tools setting the "accepteula" key which normally is set on sysinternals tool execution
Yamato Security Hayabusa@YamatoSecurityHayabusa
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Yamato Security Hayabusa Rules
1 year ago
004
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