In a critical investigation, forensic experts aim to perform physical acquisition on a rooted Android device using the dd command. This method…

Physical acquisition using the dd command on a rooted Android device requires a specific sequence. First, a connection must be established, typically via USB using the Android Debug Bridge (ADB). Second, the investigator must gain privileged access by acquiring a root shell (su). Third, it is critical to identify the correct source block device for the internal memory (e.g., /dev/block/mmcblk0) and a destination path for the image file. Finally, the dd command is executed with the identified source (if=) and destination (of=) to create a bit-for-bit copy.

A. This option is too vague; "secure connection" and "remotely" do not specify the necessary ADB shell and root access steps.

B. The dd command is a software utility, not custom hardware. Hardware is used for connection, but the core process is software-based.

C. Using Bluetooth is not a forensically sound or reliable method for full physical acquisition due to its low speed and instability.

1. Vidas

T.

& Christin

N. (2012). Evading Android Forensics. Carnegie Mellon University CyLab. Section 3.1

"Physical Acquisition

" describes the use of dd on rooted devices

which requires identifying the flash memory device file. (Technical Report CMU-CyLab-12-018)

2. Al-Azani

S.

& Al-Sallami

H. (2017). A Forensic Analysis of Android Mobile Operating System. International Journal of Computer Science and Network Security

17(5)

189-197. Page 192 discusses physical acquisition on rooted devices using tools like dd via an ADB shell.