choice.exe

  • File Path: C:\windows\system32\choice.exe
  • Description: Offers the user a choice

Hashes

Type Hash
MD5 5078D50A9D570C72E95D4CD689F28879
SHA1 64BD5EF35ABF5E808A913664243918DBF7CF6368
SHA256 A0AC4AD10A633E0FEAB5D674818043FE2EAB7814FDB6BE67F0CE84CDBAD46A6B
SHA384 296FFECCC6196428A1D492A89C8461D4FD3EDEB2B9B4D1CF157269B02314D070FEF06F0DB386651AFFCD41AD7B45BACE
SHA512 59B338F13BB8D634DA04D46540139F2A0B451A675F4BBEA65EDD8D690C80072C9CE5E322863D12ABD2FF053CA4E6EFDF34C368D2CA9D0EF33E79CA1808B1F3B7
SSDEEP 768:YrfGlB2JS5YQDvL/HyHegHUaquMHFFxYqLHv4T0FhoN5NxLWnd:YrfYB0mYQ7LfyRay2PBoZxynd

Signature

  • Status: The file C:\windows\system32\choice.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: choice.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 choice.exe being misused. While choice.exe is not inherently malicious, its legitimate functionality can be abused for malicious purposes.

Source Source File Example License
sigma edr_command_execution_by_office_applications.yml #useful_information: Add more office applications to the rule logic of choice DRL 1.0
sigma file_event_win_script_creation_by_office_using_file_ext.yml description: This rule will monitor executable and script file creation by office applications. Please add more file extensions or magic bytes to the logic of your choice. DRL 1.0
sigma file_event_win_script_creation_by_office_using_file_ext.yml #useful_information: Please add more file extensions to the logic of your choice. DRL 1.0
sigma proc_creation_win_lolbins_by_office_applications.yml #useful_information: add more LOLBins to the rules logic of your choice. DRL 1.0
sigma proc_creation_win_lolbins_with_wmiprvse_parent_process.yml #useful_information: add more LOLBins to the rules logic of your choice. DRL 1.0
sigma proc_creation_win_office_applications_spawning_wmi_commandline.yml #useful_information: Add more office applications to the rule logic of choice DRL 1.0
sigma proc_creation_win_office_from_proxy_executing_regsvr32_payload.yml #useful_information: add more LOLBins to the rules logic of your choice. DRL 1.0
sigma proc_creation_win_office_from_proxy_executing_regsvr32_payload2.yml #useful_information: add more LOLBins to the rules logic of your choice. DRL 1.0
sigma proc_creation_win_office_spawning_wmi_commandline.yml #useful_information: Add more office applications to the rule logic of choice DRL 1.0
sigma registry_event_wab_dllpath_reg_change.yml title: Execution DLL of Choice Using WAB.EXE DRL 1.0
sigma file_event_executable_and_script_creation_by_office_using_file_ext.yml description: This rule will monitor executable and script file creation by office applications. Please add more file extensions or magic bytes to the logic of your choice. DRL 1.0
sigma file_event_executable_and_script_creation_by_office_using_file_ext.yml #useful_information: Please add more file extensions and magic bytes to the logic of your choice. DRL 1.0
LOLBAS Wab.yml Description: Change HKLM\Software\Microsoft\WAB\DLLPath and execute DLL of choice  
atomic-red-team index.md - Atomic Test #3: Maldoc choice flags command execution [windows] MIT License. © 2018 Red Canary
atomic-red-team windows-index.md - Atomic Test #3: Maldoc choice flags command execution [windows] MIT License. © 2018 Red Canary
atomic-red-team T1204.002.md - Atomic Test #3 - Maldoc choice flags command execution MIT License. © 2018 Red Canary
atomic-red-team T1204.002.md ## Atomic Test #3 - Maldoc choice flags command execution MIT License. © 2018 Red Canary
atomic-red-team T1204.002.md $macrocode = “ a = Shell("cmd.exe /c choice /C Y /N /D Y /T 3”, vbNormalFocus)” MIT License. © 2018 Red Canary
signature-base apt_eqgrp_apr17.yar $x5 = “If one choice fails, you may want to try another.” fullword ascii CC BY-NC 4.0
signature-base apt_eqgrp_apr17.yar $x1 = “[-] Error: Exploit choice not supported for target OS!!” fullword ascii CC BY-NC 4.0
signature-base gen_mal_backnet.yar $s6 = “/C choice /C Y /N /D Y /T 4 & Del” wide CC BY-NC 4.0
signature-base gen_webshells.yar // a good choice is a string with good atom quality = ideally 4 unusual characters next to each other CC BY-NC 4.0
signature-base thor-hacktools.yar $s1 = “if not "%Choice%"=="" set Choice=%Choice:~0,1%” ascii 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.

choice

Prompts the user to select one item from a list of single-character choices in a batch program, and then returns the index of the selected choice. If used without parameters, choice displays the default choices Y and N.

Syntax

choice [/c [<choice1><choice2><…>]] [/n] [/cs] [/t <timeout> /d <choice>] [/m <text>]

Parameters

Parameter Description
/c <choice1><choice2><…> Specifies the list of choices to be created. Valid choices include a-z, A-Z, 0-9, and extended ASCII characters (128-254). The default list is YN, which is displayed as [Y,N]?.
/n Hides the list of choices, although the choices are still enabled and the message text (if specified by /m) is still displayed.
/cs Specifies that the choices are case-sensitive. By default, the choices are not case-sensitive.
/t <timeout> Specifies the number of seconds to pause before using the default choice specified by /d. Acceptable values are from 0 to 9999. If /t is set to 0, choice does not pause before returning the default choice.
/d <choice> Specifies the default choice to use after waiting the number of seconds specified by /t. The default choice must be in the list of choices specified by /c.
/m <text> Specifies a message to display before the list of choices. If /m is not specified, only the choice prompt is displayed.
/? Displays help at the command prompt.

Remarks

  • The ERRORLEVEL environment variable is set to the index of the key that the user selects from the list of choices. The first choice in the list returns a value of 1, the second a value of 2, and so on. If the user presses a key that is not a valid choice, choice sounds a warning beep.

  • If choice detects an error condition, it returns an ERRORLEVEL value of 255. If the user presses CTRL+BREAK or CTRL+C, choice returns an ERRORLEVEL value of 0.

[!NOTE] When you use ERRORLEVEL values in a batch program, you must list them in decreasing order.

Examples

To present the choices Y, N, and C, type the following line in a batch file:

choice /c ync

The following prompt appears when the batch file runs the choice command:

[Y,N,C]?

To hide the choices Y, N, and C, but display the text Yes, No, or Continue, type the following line in a batch file:

choice /c ync /n /m "Yes, No, or Continue?"

[!NOTE] If you use the /n parameter, but do not use /m, the user is not prompted when choice is waiting for input.

To show both the text and the options used in the previous examples, type the following line in a batch file:

choice /c ync /m "Yes, No, or Continue"

To set a time limit of five seconds and specify N as the default value, type the following line in a batch file:

choice /c ync /t 5 /d n

[!NOTE] In this example, if the user doesn’t press a key within five seconds, choice selects N by default and returns an error value of 2. Otherwise, choice returns the value corresponding to the user’s choice.

Additional References

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