Ann. An employee in the payroll department, has contacted the help desk citing multiple issues with her device, including:
+Slow performance
+Word documents, PDFs, and images no longer opening
+A pop-up
Ann states the issues began after she opened an invoice that a vendor emailed to her. Upon opening the invoice, she had to click several security warnings to view it in her word processor. With which of the following is the device MOST likely infected?

A.
Spyware
B.
Crypto-malware
C.
Rootkit
D.
Backdoor
where are the security warning generating from?
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i would tend to A or C, but i’m not quite sure which of them.
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Yah, I would think that both a rootkit and back door wouldn’t affect anything. Just gives a bad guy a way to access your data and/or control your computer and hack into the network. If they work like they are supposed to, the end user would never be the wiser. Spyware, again, is software that is installed on a computing device without the end user’s knowledge to covertly obtain info about them. I’m guessing Crypto-Malware “B” is the correct answer. Although worded pretty lamely, it would encrypt your files/hard-drive which wouldn’t allow Ann to open her files and a pop-up would reveal how she can pay the bad guy to unlock her files/hard-drive.
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A or C. I suspect A because the vendor may have reason to target Ann, and a rootkit wouldn’t normally spread through a legitimate and expected email.
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I think B coz she is not able to open files -> coz the are encrypted. Slow performance coz it takes lots of cpu power to encrypt stuff. Pop up probably displays the h4x0r’s btc address
Spyware, rootkit or backdoor supposed to be stealth so no popups
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Backdoor Provide another way of accessing a system so i think its wrong answer
B — will be the correct one
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If the threat came in via an email, in the FRONT END, quite visibly and with user interaction, how on earth can this be construed as a backdoor? No way. A backdoor does not require user interaction, and it is just that, a backdoor. This came via the front door. B-Crypto-malware requires user interaction
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Cant be a crypto malware.
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I say it’s a spyware because of the popups
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Cryptomalware
Kaspersky IT Encyclopedia Glossary C Cryptomalware
Type of ransomware that encrypts user’s files, and demands ransom. Sophisticated cryptomalware uses advanced encryption methods so files could not be decrypted without unique key.
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I like B.
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