Signs of Infection by Computer Virus
Sometimes it happens that your antivirus program can not detect the virus, although in fact the computer may be infected. Therefore, you should know the signs that may alert you. These include the following:
- Termination of the application or improper work (although they had previously operated successfully);
- The computer starts slowly;
- The operating system will not boot; Disappearing, some files and directories or the distortion of their contents;
- Changes the date and time of last modification of files; Changes file size Significantly increased the number of files on a disk;
- Significantly reduced the amount of free RAM;
- On screen displays unsolicited messages or images;
- Failures in the computer.
It should be noted that the above phenomena do not necessarily caused by the presence of the virus, but may be due to other causes. Therefore it is always difficult to correct diagnosis of your computer.
All actions of the virus can be carried out quickly and without issuing any message, so users are very difficult to notice that your computer is something unusual.
While your computer is infected with relatively few programs, the presence of the virus can be almost imperceptible. Most often manifest the following symptoms, so they should pay particular attention to:
- Some programs no longer work;
- On screen displays extraneous messages, symbols, etc.;
- Work on your computer considerably slows down;
- Some files are corrupted, etc.
They say that by this time, already a lot (or even most) programs can be infected by computer virus, and some files and drives – spoiled. Moreover, the infected programs from one computer can be transferred to other computers.
Some types of viruses behave even more insidious. They initially unnoticed infect a large number of programs or files, and then causing serious damage.
There are computer viruses that try to behave inconspicuously as possible, but slowly and gradually corrupt data on your hard disk.
Thus, if you do not take measures to protect against the virus, the consequences of infecting your computer can be very serious. You can get more information on the antivirus ratings“.
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