Câu 1: GCFA: GIAC Certified Forensic Analyst

Adam, a malicious hacker has successfully gained unauthorized access to the Linux system ofUmbrella Inc. Web server of the company runs on Apache. He has downloaded sensitive documents and database files from the computer. After performing these malicious tasks, Adam finally runs the following command on the Linux command box before disconnecting. for (( i = 0;i<11;i++ )); do dd if=/dev/random of=/dev/hda && dd if=/dev/zero of=/dev/hda doneWhich of the following actions does Adam want to perform by the above command?

1. A. Making a bit stream copy of the entire hard disk for later download.
2. B. Deleting all log files present on the system.
3. C. Wiping the contents of the hard disk with zeros. — đáp án hiện tại
4. D. Infecting the hard disk with polymorphic virus strings.