A User Receives a Potentially Malicious Email That Contains Spelling

question 8

Multiple Choice

A user receives a potentially malicious email that contains spelling errors and a PDF document. A security analyst reviews the email and decides to download the attachment to a Linux sandbox for review. Which of the following commands would MOST likely indicate if the email is malicious?

• A) sha256sum ~/Desktop/file.pdf
• B) file ~/Desktop/file.pdf
• C) strings ~/Desktop/file.pdf | grep "<script"
• D) cat < ~/Desktop/file.pdf | grep -i .exe

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Definitions:

Manufacturing Overhead

All indirect costs associated with the production process, such as utilities, maintenance, and management salaries, not directly tied to direct materials or direct labor.

Predetermined Overhead Rate

A rate used in cost accounting to allocate overhead costs based on an estimated activity level.

Direct Labor-hours

The hours that workers contribute directly towards the manufacture of goods over a specified period.

Fixed Manufacturing Overhead

Costs associated with production that do not vary with the level of output, such as depreciation of machinery and the salary of the factory manager.