If we do the questions below in the article, and the responses to them all are a resounding YES, then it is time to take the tools and get to work, because surely we will have to eliminate some viruses.
Your computer is too slow?
A simple and common symptom of a virus in our system it is that the computer becomes much slower than usual. However, there may be other reasons for low performance, including a hard drive that needs to be fragmented, a computer that needs more memory (RAM), or the existence of spyware or adware.
Unexpected messages appear or apps start automatically?
Some types of viruses can cause damage to Windows or in others apps. The results of this damage might include messages shown unexpectedly, apps that start automatically, or the sudden closure of windows we have open.
The modem or hard disk are working more than necessary?
An e-mail virus works by sending many copies by e-mail. An indicator that something bad happens is that the activity light on the broadband modem is constantly lit or flashing intensely all the time.
Another indicator is that the hard drive of the computer constantly working, we can confirm through the sound it produces, or the LED indicator in the cabinet. These symptoms do not always represent the presence of a virus, but may indicate a virus infection combined with other problems.
To verify no virus, examine the computer with an antivirus program. New viruses appear daily, therefore it is important to keep constantly updated antivirus.
Signs that are positively infected with a virus
Your computer is not the same? Performance presents different problems and appear strange messages? These, surely, are the signs of one of the many infections of the endless threats present when surfing the Internet.
In addition to a antivirus software, you need to have knowledge about the symptoms that cause malware on the computer to identify problems and react faster and avoid greater evils.
There are certain behaviors that are normally associated to virus infected computers, these are:
- The computer “talks”
There are many types of pop-ups, which indicate falsely that we are infected with viruses or we are too vulnerable, so we need to download some software, which generally includes more virus.
If we receive this type of pop-up messages, it’s likely that we are infected with “Rogueware” malware or other crap.
An computer slow performance can be caused by many things, including infection by viruses. The threats such as viruses, worms, and trojans among others, perform tasks consuming many resources, causing the system to run slower than usual.
- The applications do not start
When one or more applications do not respond, or stop working, it is obvious that something is not working correctly. There are certain malwares that directly attack specific applications or programs, and preventing them from running correctly.
- Internet is slow or not connecting
The loss of Internet connectivity is another common symptom of virus infection, but can also be a server problem, the modem or router. When the connection slows down, chances are that a malware are connecting a URL, or opening separate connection sessions, reducing band width available, Internet thus becomes impossible to navigate.
- Browser pages or windows opens without we have asked
This is another very common sign of infection. Many threats are designed to redirect certain websites against the user’s wishes. These pages can be imitations of legal pages to try to deceive.
- Personal files disappear
This type of situation is really worrying and horrific. There are still some threats designed to delete or encrypt information, or move documents from one place to another.
- The antivirus software disappears and the firewall is disabled
This is another typical characteristic of many threats, and involves disable installed security systems such as antivirus, firewall, etc. If a software is uninstalled, it may be due to a specific fault, but if it comes to the security systems of the computer, are unmistakable signs of virus infection.
- Changing language
If the language of certain applications and programs change, or the screen moves, or desktop shortcuts disappear, it is possible that the system is infected.
- The Library (which stores programs, documents or games) disappears
If this happens, it is more than an indication that the computer is infected, but can also be caused by incomplete or incorrect installation of some programs.
- The computer went crazy
If the computer starts acting on their own, send e-mails, opens sessions or run applications without our permission, it is a sign that is infected with some malware.