cacls.exe

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

Hashes

Type Hash
MD5 7B353F98E18FD9BEA92D4CA9AEEBA9CC
SHA1 4861B3D04E2DB776782736126E71E08F80BB6803
SHA256 C81018F19C8C104E568D5168C7CA7011FAA9C7BA7310510B303E54A7FAFCE84C
SHA384 8B0A4EAECB47D0C0355B5A1CE9B452139143B41A2A96B2CC4B9BCDDD9757B649528EABF184A8DA133EC7706EC9557670
SHA512 F0A3B6E6EA41FAE0E506936B85B4C437425F73C8F0704DC4A289D0B77CDC7CD4804536807CF4AE534C713A21DF1A2500CCD3C23BB6D284DF62E21BB66ED807B3
SSDEEP 768:gczFYtcN4HFs+QJp5UWh2/w/FxP9HnCi20b0DhDqG1+i2K:hzmtlnQJbUW8w/FxP1nkPDqGf2K
IMP 8F09CA312ABDFEB8B57BA1170C68E893
PESHA1 7BC9CA4D81C2F9A314581FF7F14703C4A45ABF41
PE256 E70ACC3BDFCA5255D7836E32A8483E9A75317DCF5C88FD67F3176B634E1609DC

Runtime Data

Usage (stdout):


 NOTE: Cacls is now deprecated, please use Icacls.

 Displays or modifies access control lists (ACLs) of files

 CACLS filename [/T] [/M] [/L] [/S[:SDDL]] [/E] [/C] [/G user:perm]
        [/R user [...]] [/P user:perm [...]] [/D user [...]]
    filename      Displays ACLs.
    /T            Changes ACLs of specified files in
                  the current directory and all subdirectories.
    /L            Work on the Symbolic Link itself versus the target
    /M            Changes ACLs of volumes mounted to a directory
    /S            Displays the SDDL string for the DACL.
    /S:SDDL       Replaces the ACLs with those specified in the SDDL string
                  (not valid with /E, /G, /R, /P, or /D).
    /E            Edit ACL instead of replacing it.
    /C            Continue on access denied errors.
    /G user:perm  Grant specified user access rights.
                  Perm can be: R  Read
                               W  Write
                               C  Change (write)
                               F  Full control
    /R user       Revoke specified user's access rights (only valid with /E).
    /P user:perm  Replace specified user's access rights.
                  Perm can be: N  None
                               R  Read
                               W  Write
                               C  Change (write)
                               F  Full control
    /D user       Deny specified user access.
 Wildcards can be used to specify more than one file in a command.
 You can specify more than one user in a command.

 Abbreviations:
    CI - Container Inherit.
         The ACE will be inherited by directories.
    OI - Object Inherit.
         The ACE will be inherited by files.
    IO - Inherit Only.
         The ACE does not apply to the current file/directory.
    ID - Inherited.
         The ACE was inherited from the parent directory's ACL.

Usage (stderr):

The system cannot find the file specified.

Signature

  • Status: Signature verified.
  • Serial: 33000001C422B2F79B793DACB20000000001C4
  • Thumbprint: AE9C1AE54763822EEC42474983D8B635116C8452
  • Issuer: CN=Microsoft Windows Production PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
  • Subject: CN=Microsoft Windows, O=Microsoft Corporation, L=Redmond, S=Washington, C=US

File Metadata

  • Original Filename: CACLS.EXE.MUI
  • Product Name: Microsoft Windows Operating System
  • Company Name: Microsoft Corporation
  • File Version: 10.0.17763.1 (WinBuild.160101.0800)
  • Product Version: 10.0.17763.1
  • Language: English (United States)
  • Legal Copyright: Microsoft Corporation. All rights reserved.
  • Machine Type: 64-bit

File Scan

  • VirusTotal Detections: 0/72
  • VirusTotal Link: https://www.virustotal.com/gui/file/c81018f19c8c104e568d5168c7ca7011faa9c7ba7310510b303e54a7fafce84c/detection/

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.