SubInACL – Complete solution to configure security permission

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SubInACL is a tiny tool from Microsoft for performing permission management on folders, files, registries, services, and other objects. It was released as one of the tools in Windows Resource Kits. It is very powerful and practical, and much more powerful than cacls and its replacement, icacls. It is considered to be an edge tool for setting access permissions, suitable for professionals such as programmers and administrators.

When you encounter a situation where a file/folder is not accessible even to the system administrator, it is usually caused by the fact that the owner of this file/folder is not set and the permission of system administrator has been removed. The only way to access this folder or file is to set its owner to system administrator and add the full control permission of administrator. In another case, if a user does not have the administrator permission, when installing Windows service, its Start, Stop and other functions are disabled (in gray state). In cases like these, you can use SubInACL to increase/elevate the permissions of an account to solve the problem with precision.

// Key Features //

  • If used properly, it does not tamper any existing permission.
  • Can change permission/ owner to those subfolders where inheritance is disabled.
  • Can change permission even if we do not have access to a folder/subfolder.
  • Output log and error log can be enabled.

// Main Applications //

  • Display security information associated with files, registry keys, or services. This information includes owner, group, permission access control list (ACL), discretionary ACL (DACL), and system ACL (SACL).
  • Change the owner of an object.
  • Replace the security information for one identifier (account, group, well-known security identifier (SID)) with that of another identifier.
  • Migrate security information about objects. This is useful if you have reorganized a network’s domains and need to migrate the security information for files from one domain to another.

// Main Parameters //

Parameter Description
/view_mode Specifies the amount of information to be displayed during the run. There are two quantity levels to choose from: verbose=1 or verbose=2. Default is the latter, at which point most of the information is displayed.
/test_mode Indicates whether commands interact directly with the operating system when they are run or tested for successful execution. The default option is that all commands interact directly with the OS.
/object_type Specifies which Windows object is executed for this operation. Optional objects include services, registry keys, registry subkeys, files, subdirectories, shares, printers, and so on. There is no default value for this parameter, but it is required.
/action Specify the operations of SubInACL. The default option is to display the corresponding information for the specified object. Options include display, replace, changedomain, migratetodomain, findsid, grant, deny, revoke, accesscheck, and ifchangecontinue, and so on.

// Some Use Examples //

Action Command line
Sets the owner of directory  subinacl /subdirectories=directoriesonly directory name\*.* /setowner=administrators
Sets the owner of file  subinacl /subdirectories directory name\*.* /setowner=administrators
Sets full control permission of directory subinacl /subdirectories=directoriesonly directory name\*.* /grant=administrators=f
Sets full control permission of file  subinacl /subdirectories directory name\*.* /grant=administrators=f
Clears the unused user SID of the specified directory and files
  • subinacl /file *.htm /cleandeletedsidfrom=s-1-5-21-448539723-1500820517-14170013330-500
  • Subinacl /subdirectories Path\*.* /suppresssid=S-1-5-21-448539723-1500820517-1417001333-500
Sets registry subinacl /keyreg “HKEY_LOCAL_MACHINE\system\ControlSet001\Services” /grant=administrators=f
Sets folder subinacl /file d:\ /grant=administrators=F
Starts mysql service with normal user subinacl.exe /service SERVICENAME /grant=USER=f

// Prompts //

  • The most complete instructions from the official are available in the software directory.
  • The installation version will automatically attach this program to the “Path” system variable of environment variables.
  • Copy subinacl.exe to C:\Windows\System32, then you can use it by running “subinacl” directly in the CMD.
  • Permissions for files and directories need to be set separately, they do not support extending up or down.
  • It is also wise to test the changes with the “/testmode” parameter before using the tool on a running operating system.
  • Run “subinacl /help /full” to see a descriptive help file, which describes the objects and operations of SubInACL, as well as how they are used in some specific circumstances.

// Related Links //

// Download URLs //

License Version Download Size
Freeware v5.2.3790 Final Setup + Portable 129 KB | 89.3 KB

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