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83 lines
5.7 KiB
Markdown
83 lines
5.7 KiB
Markdown
# Physical Attacks
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{% hint style="success" %}
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Learn & practice AWS Hacking:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
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Learn & practice GCP Hacking: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
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<details>
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<summary>Support HackTricks</summary>
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* Check the [**subscription plans**](https://github.com/sponsors/carlospolop)!
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* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
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* **Share hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
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</details>
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{% endhint %}
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## BIOS Password Recovery and System Security
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**Resetting the BIOS** can be achieved in several ways. Most motherboards include a **battery** that, when removed for around **30 minutes**, will reset the BIOS settings, including the password. Alternatively, a **jumper on the motherboard** can be adjusted to reset these settings by connecting specific pins.
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For situations where hardware adjustments are not possible or practical, **software tools** offer a solution. Running a system from a **Live CD/USB** with distributions like **Kali Linux** provides access to tools like **_killCmos_** and **_CmosPWD_**, which can assist in BIOS password recovery.
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In cases where the BIOS password is unknown, entering it incorrectly **three times** will typically result in an error code. This code can be used on websites like [https://bios-pw.org](https://bios-pw.org) to potentially retrieve a usable password.
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### UEFI Security
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For modern systems using **UEFI** instead of traditional BIOS, the tool **chipsec** can be utilized to analyze and modify UEFI settings, including the disabling of **Secure Boot**. This can be accomplished with the following command:
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`python chipsec_main.py -module exploits.secure.boot.pk`
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### RAM Analysis and Cold Boot Attacks
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RAM retains data briefly after power is cut, usually for **1 to 2 minutes**. This persistence can be extended to **10 minutes** by applying cold substances, such as liquid nitrogen. During this extended period, a **memory dump** can be created using tools like **dd.exe** and **volatility** for analysis.
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### Direct Memory Access (DMA) Attacks
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**INCEPTION** is a tool designed for **physical memory manipulation** through DMA, compatible with interfaces like **FireWire** and **Thunderbolt**. It allows for bypassing login procedures by patching memory to accept any password. However, it's ineffective against **Windows 10** systems.
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### Live CD/USB for System Access
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Changing system binaries like **_sethc.exe_** or **_Utilman.exe_** with a copy of **_cmd.exe_** can provide a command prompt with system privileges. Tools such as **chntpw** can be used to edit the **SAM** file of a Windows installation, allowing password changes.
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**Kon-Boot** is a tool that facilitates logging into Windows systems without knowing the password by temporarily modifying the Windows kernel or UEFI. More information can be found at [https://www.raymond.cc](https://www.raymond.cc/blog/login-to-windows-administrator-and-linux-root-account-without-knowing-or-changing-current-password/).
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### Handling Windows Security Features
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#### Boot and Recovery Shortcuts
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- **Supr**: Access BIOS settings.
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- **F8**: Enter Recovery mode.
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- Pressing **Shift** after the Windows banner can bypass autologon.
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#### BAD USB Devices
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Devices like **Rubber Ducky** and **Teensyduino** serve as platforms for creating **bad USB** devices, capable of executing predefined payloads when connected to a target computer.
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#### Volume Shadow Copy
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Administrator privileges allow for the creation of copies of sensitive files, including the **SAM** file, through PowerShell.
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### Bypassing BitLocker Encryption
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BitLocker encryption can potentially be bypassed if the **recovery password** is found within a memory dump file (**MEMORY.DMP**). Tools like **Elcomsoft Forensic Disk Decryptor** or **Passware Kit Forensic** can be utilized for this purpose.
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### Social Engineering for Recovery Key Addition
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A new BitLocker recovery key can be added through social engineering tactics, convincing a user to execute a command that adds a new recovery key composed of zeros, thereby simplifying the decryption process.
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{% hint style="success" %}
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Learn & practice AWS Hacking:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
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Learn & practice GCP Hacking: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
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<details>
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<summary>Support HackTricks</summary>
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* Check the [**subscription plans**](https://github.com/sponsors/carlospolop)!
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* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
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* **Share hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
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</details>
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{% endhint %}
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