You get a call from a home computer user saying her computer is very slow today

Question

You get a call from a home computer user saying her computer is very slow today and both the NIC status light on the computer and the Internet status light on her DSL modem have been extremely active. What do you suspect?

A. Her computer has been compromised and is being used as a zombie.

B. She is sending an excessive number of e-mails to friends and family.

C. Her computer is infected with a dialer.

D. Her computer is being subjected to a phishing attack.

You get a call from a home computer user saying her computer is very slow today and both the NIC status light on the computer and the Internet status light on her DSL modem have been extremely active. What do you suspect?

A. Her computer has been compromised and is being used as a zombie.

B. She is sending an excessive number of e-mails to friends and family.

C. Her computer is infected with a dialer.

D. Her computer is being subjected to a phishing attack.

Explanation / Answer

A. It’s likely that her computer has been compromised by a rootkit or other malware that is using the computer as a “zombie,” which is a computer that is part of a large collection of compromised computers being used as spam relays or as part of a distributed denial-of-service (DDoS) attack on a host on the Internet.

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