bypassing_the_login_password
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bypassing_the_login_password [2025.08.01 08:36] – [4. Use Command Prompt via Recovery Console (Local Accounts)] Steve Isenberg | bypassing_the_login_password [2025.08.02 15:38] (current) – Steve Isenberg | ||
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~~NOCACHE~~ <fc # | ~~NOCACHE~~ <fc # | ||
visits {{counter|today| time| times}} today, {{counter|yesterday| time| times}} yesterday, and {{counter|total| time total| total times}}]</ | visits {{counter|today| time| times}} today, {{counter|yesterday| time| times}} yesterday, and {{counter|total| time total| total times}}]</ | ||
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+ | The information on this page is publicly available, much of it came from ChatGPT and Claude.ai. | ||
====== Regaining Access to a Windows Computer Without a Known Password ====== | ====== Regaining Access to a Windows Computer Without a Known Password ====== | ||
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* Boot into **Windows Recovery Environment** (Shift + Restart or via installation USB). | * Boot into **Windows Recovery Environment** (Shift + Restart or via installation USB). | ||
* Open **Command Prompt**. | * Open **Command Prompt**. | ||
- | * Replace | + | * Replace |
- | < | + | < |
- | | + | copy c: |
- | copy c: | + | |
- | | + | |
* Reboot the machine. | * Reboot the machine. | ||
* On the login screen, click the **Ease of Access** button to open a command prompt. | * On the login screen, click the **Ease of Access** button to open a command prompt. | ||
* Reset the password: | * Reset the password: | ||
- | < | + | < |
- | | + | |
- | | + | |
* Restore the original `utilman.exe` file: | * Restore the original `utilman.exe` file: | ||
- | < | + | < |
- | | + | |
- | | + | |
===== 5. Reset Microsoft Account Password (Online Accounts) ===== | ===== 5. Reset Microsoft Account Password (Online Accounts) ===== | ||
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* **PassFab 4WinKey** (Commercial): | * **PassFab 4WinKey** (Commercial): | ||
* **iSunshare Windows Password Genius** (Commercial): | * **iSunshare Windows Password Genius** (Commercial): | ||
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+ | |||
+ | |||
+ | ====== Bypassing Windows Login with osk.exe ====== | ||
+ | |||
+ | This page explains a legacy method for bypassing the Windows login screen using the `osk.exe` accessibility feature. Note: This method is largely blocked on modern systems and should only be used with proper authorization. | ||
+ | |||
+ | ===== What is osk.exe? ===== | ||
+ | |||
+ | `osk.exe` is the **On-Screen Keyboard** executable in Windows. It is part of the **Ease of Access** tools that are available even on the login screen, intended to help users with physical limitations. | ||
+ | |||
+ | ===== How the Exploit Works (In Theory) ===== | ||
+ | |||
+ | The idea behind the exploit is to replace `osk.exe` with `cmd.exe` so that launching the On-Screen Keyboard at the login screen actually opens a command prompt with **SYSTEM-level privileges**. From there, one can reset a password or create a new administrative account. | ||
+ | |||
+ | ==== Steps (assuming admin or physical access): ==== | ||
+ | |||
+ | - Boot into Windows Recovery Environment (WinRE) or from a Windows installation USB/DVD. | ||
+ | - Open a command prompt from the recovery options. | ||
+ | - Rename the original '' | ||
+ | - Replace it with '' | ||
+ | - Reboot the machine. | ||
+ | - At the login screen, click the On-Screen Keyboard icon. | ||
+ | - A command prompt opens instead. | ||
+ | - Reset the password or create a new user: | ||
+ | * For example, to reset a password:\\ '' | ||
+ | * Or to create a new admin user:\\ '' | ||
+ | |||
+ | ===== Limitations and Warnings ===== | ||
+ | |||
+ | * Most **modern Windows systems block this method** using security features like Windows Defender, Secure Boot, and Trusted Platform Module (TPM). | ||
+ | * This method **does not work if BitLocker is enabled** and the drive is locked. | ||
+ | * It may trigger **security alerts or logs**, especially on domain-joined machines. | ||
+ | * **Using this method without permission is illegal**. | ||
+ | * For legitimate recovery, use tools such as: | ||
+ | * Offline NT Password & Registry Editor | ||
+ | * Microsoft Account password recovery tools | ||
+ | |||
+ | ===== Bottom Line ===== | ||
+ | |||
+ | The `osk.exe` method is a creative example of leveraging accessibility features for privilege escalation, but it is mostly ineffective on secure, up-to-date systems. It's useful from a **security awareness or forensic analysis** perspective, | ||
+ | |||
+ | ---- | ||
+ | |||
+ | **Note:** Use these techniques only on machines you own or are authorized to service. | ||
===== Notes and Cautions ===== | ===== Notes and Cautions ===== |
bypassing_the_login_password.1754062562.txt.gz · Last modified: by Steve Isenberg