cacls.exe

  • File Path: C:\windows\system32\cacls.exe
  • Description: Control ACLs Program

Hashes

Type Hash
MD5 D2CDE111F1F7EF8BA469CF980A1A13BA
SHA1 3201E01B40878FBBFFE5D330085154AD1BDF047B
SHA256 4162FAF99C4FD924AC71151CE344F38EECD424CEFA1B6B9018A22B44A9532BAC
SHA384 A71D6AAE1366FEDF266BA8892A10FDB69CA9E5D3D307E34DCFA1BB4747AA79C023A47BCA9FC7CB3ADB80A104987430CD
SHA512 5DE1FD8C9DD222CB684AF49BCE3A60E79B9C1475AEBE31BD49174B5A07DA04BFFB3E267626818E05D8387C7871ACC2AC61A885ED7578939E9E4D5475810BC257
SSDEEP 768:X/+XpZXwy9nTbf4xjo4ZRGQnDR+rOk7HPNLjiauu3r2AQ2ov:XWTXwATsxs4LGvPN4AQ2ov

Signature

  • Status: The file C:\windows\system32\cacls.exe is not digitally signed. You cannot run this script on the current system. For more information about running scripts and setting execution policy, see about_Execution_Policies at http://go.microsoft.com/fwlink/?LinkID=135170
  • Serial: ``
  • Thumbprint: ``
  • Issuer:
  • Subject:

File Metadata

  • Original Filename: CACLS.EXE.MUI
  • Product Name: Microsoft Windows Operating System
  • Company Name: Microsoft Corporation
  • File Version: 6.3.9600.16384 (winblue_rtm.130821-1623)
  • Product Version: 6.3.9600.16384
  • Language: English (United States)
  • Legal Copyright: Microsoft Corporation. All rights reserved.

Possible Misuse

The following table contains possible examples of cacls.exe being misused. While cacls.exe is not inherently malicious, its legitimate functionality can be abused for malicious purposes.

Source Source File Example License
sigma win_file_permission_modifications.yml - '\cacls.exe' DRL 1.0
atomic-red-team index.md - Atomic Test #2: cacls - Grant permission to specified user or group recursively [windows] MIT License. © 2018 Red Canary
atomic-red-team windows-index.md - Atomic Test #2: cacls - Grant permission to specified user or group recursively [windows] MIT License. © 2018 Red Canary
atomic-red-team T1222.001.md Adversaries can interact with the DACLs using built-in Windows commands, such as icacls, cacls, takeown, and attrib, which can grant adversaries higher permissions on specific files and folders. Further, PowerShell provides cmdlets that can be used to retrieve or modify file and directory DACLs. Specific file and directory modifications may be a required step for many techniques, such as establishing Persistence via Accessibility Features, Boot or Logon Initialization Scripts, or tainting/hijacking other instrumental binary/configuration files via Hijack Execution Flow.</blockquote> MIT License. © 2018 Red Canary
atomic-red-team T1222.001.md - Atomic Test #2 - cacls - Grant permission to specified user or group recursively MIT License. © 2018 Red Canary
atomic-red-team T1222.001.md ## Atomic Test #2 - cacls - Grant permission to specified user or group recursively MIT License. © 2018 Red Canary
signature-base cn_pentestset_tools.yar $s1 = “cacls %s /t /c /e /r administrators” fullword ascii /* PEStudio Blacklist: strings */ CC BY-NC 4.0

Additional Info*

*The information below is copied from MicrosoftDocs, which is maintained by Microsoft. Available under CC BY 4.0 license.


cacls

[!IMPORTANT] This command has been deprecated. Please use icacls instead.

Displays or modifies discretionary access control lists (DACL) on specified files.

Syntax

cacls <filename> [/t] [/m] [/l] [/s[:sddl]] [/e] [/c] [/g user:<perm>] [/r user [...]] [/p user:<perm> [...]] [/d user [...]]

Parameters

Parameter Description
<filename> Required. Displays ACLs of specified files.
/t Changes ACLs of specified files in the current directory and all subdirectories.
/m Changes ACLs of volumes mounted to a directory.
/l Works on the Symbolic Link itself instead of the target.
/s:sddl Replaces the ACLs with those specified in the SDDL string. This parameter is not valid for use with the /e, /g, /r, /p, or /d parameters.
/e Edit an ACL instead of replacing it.
/c Continue after access denied errors.
/g user:<perm> Grants specified user access rights, including these valid values for permission:<ul><li>n - None</li><li>r - Read</li><li>w - Write</li><li>c - Change (write)</li><li>f - Full control</li></ul>
/r user […] Revoke specified user’s access rights. Only valid when used with the /e parameter.
[/p user:<perm> [...] Replace specified user’s access rights, including these valid values for permission:<ul><li>n - None</li><li>r - Read</li><li>w - Write</li><li>c - Change (write)</li><li>f - Full control</li></ul>
[/d user […] Deny specified user access.
/? Displays help at the command prompt.
Sample output
Output Access control entry (ACE) applies to
OI Object inherit. This folder and files.
CI Container inherit. This folder and subfolders.
IO Inherit only. The ACE does not apply to the current file/directory.
No output message This folder only.
(OI)(CI) This folder, subfolders, and files.
(OI)(CI)(IO) Subfolders and files only.
(CI)(IO) Subfolders only.
(OI)(IO) Files only.
Remarks
  • You can use wildcards (? and *) to specify multiple files.

  • You can specify more than one user.

Additional References


MIT License. Copyright (c) 2020-2021 Strontic.