Question

How do we known the virus attack?​

Answer 1

Answer:

1) Frequent pop-up windows.

2) Changes to your homepage.

3) Mass emails being sent from your email account.

4) Frequent crashes.

5) Unusually slow computer performance.

6) Unknown programs that start up when you turn on your computer.

Answer 2

Answer:

A computer virus[1] is a type of computer program that, when executed, replicates itself by modifying other computer programs and inserting its own c ode.[2][3] If this replication succeeds, the affected areas are then said to be "infected" with a computer virus, a metaphor derived from biological viruses