CompTIA Security+ SY0-601 Practice Questions Correct Answers Graded A+

The user installed Trojan horse malware. - A user used an administrator account to download and install a software application. After the user launched the .exe extension installer file, the user experienced frequent crashes, slow computer performance, and strange services running when turning on the computer. What most likely happened to cause these issues? A worm - A security operations center (SOC) analyst investigates the propagation of a memoryresident virus across the network and notices a rapid consumption of network bandwidth, causing a Denial of Service (DoS). What type of virus is this? PUP (potentially unwanted program) - A user purchased a laptop from a local computer shop. After powering on the laptop for the first time, the user noticed a few programs like Norton Antivirus asking for permission to install. How would an IT security specialist classify these programs? -Uses lightweight shellcode -Uses low observable characteristic attacks - A fileless malicious software can replicate between processes in memory on a local host or over network shares. What other behaviors and techniques would classify malware as fileless rather than a normal virus? (Select all that apply.) -Computer Bots, -Command & Control - An attacker is planning to set up a backdoor that will infect a set of specific computers at an organization, to inflict a set of other intrusion attacks remotely. Which of the following will support the attackers' plan? (Select all that apply.) -Launch a Distributed Denial of Service (DDoS) attack -Establish a connection with a Command and Control server -Launch a mass-mail spam attack - If a user's computer becomes infected with a botnet, which of the following can this compromise allow the attacker to do? (Select all that apply.)Have up-to-date backups. - If a user's device becomes infected with crypto-malware, which of the following is the best way to mitigate this compromise? A logic bomb - A security specialist discovers a malicious script on a computer. The script is set to execute if the administrator's account becomes disabled. What type of malware did the specialist discover? Spyware infected the computers. - End-users at an organization contact the cybersecurity department. After downloading a file, they are being redirected to shopping websites they did not intend to navigate to, and built-in webcams turn on. The security team confirms the issue as malicious, and notes modified DNS (Domain Name System) queries that go to nefarious websites hosting malware. What most likely happened to the users' computers?