antivirus is just a security program that is installed on a computer or mobile device to protect it from infections malware .
The term “malware” refers to any malicious or malicious software whose purpose is to infiltrate or damage a computer system or information without the consent of its owner
This type of software includes:.
- Virus : its function is to alter the normal functioning of the computer without the permission or knowledge of the user. Usually, they replace executable by others infected with the code of this file
- Trojans (Trojans) . It is presented to the user as a seemingly legitimate and harmless program, but at run , gives an attacker remote access to the infected computer
- Worms (IWorm) :. has the ability to replicate themselves. They spread from computer to computer, but unlike a virus, has the ability to spread without the help of a person
- Keyloggers :. Is responsible for registering the pulses that perform on the keyboard, for later memorizing in a file or send them via Internet
- Botnets . refers to a group or network of software robots, or bots, that run autonomously and automatically. The creator of the botnet can control all computers / servers remotely infected
- Spyware or Spy program. Collects information from a computer and then conveys this information to an external entity . without the knowledge or consent of the computer owner
- Adware : Shows user web advertisements during installation or during use to generate profit to their authors
- Rootkit : enables continuous privileged access to a computer but which maintains an active presence hidden from administrators to control corrupt the normal functioning of the operating system or other applications
- Hijackers : make changes to the configuration of the web browser. For example, some change the browser home page web pages advertising or porn site, other redirect search engine results to paid advertisements or banking phishing sites.
- Dialers : take control of dial-up modem, make a call to a phone number premium rate, often international, and leave the line open by charging the cost of the call to the infected user
- . Ransomwares or Hijackers : encrypt important files to the user, making them inaccessible, and ask that a “ransom” is paid to receive the password to retrieve files
- and so on. …
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Source: Malware (English ‘malicious software’ ) – Wikipedia
Any operating system, including Mac OS X and Linux, can be infected <. br /> And every month there are new viruses that attack smartphones and tablets
How does an antivirus
Basically, there are two ways that an antivirus software identifies the malware:
- Detection signatures and
- behavior detection .
The signature detection functions as the system Immune.
It scans your computer for characteristics or “signatures” identifiable malicious programs.
This makes use of a dictionary of known malware, if there is something on the computer that matches a pattern the dictionary, the program tries to neutralize it.
Like the human immune system, the dictionary approach requires updates (such as flu shots) to protect against new strains of malware. A virus can only protect what it recognizes as harmful.
The problem is that cyber attackers are developing new malware so quickly that antivirus developers can not keep up.
The behavior detection , the antivirus tries to identify known malware but monitors the behavior of software installed on your computer.
When a program acting suspiciously, as if trying to access a protected file or modify another program, the behavior-based antivirus software noted suspicious activity and warns you of this.
This approach provides protection against new types of malware that do not exist in dictionaries .
The problem with this approach is that it can generate false warnings. You as a user can feel unsure about what to allow or disallow and eventually become insensitive to all these warnings.
You may be tempted to click “OK” in each message leaving your computer open to attack or infection.
In addition, at the time that the behavior is detected, the malware is executed probably already on your machine and you could ignore what actions did before the antivirus software to identify him.
Abstract preventive security bulletin SANS Institute (SysAdmin Audit, Networking and Security Institute), one of the most prestigious organizations information security grouping 165,000 security professionals (consultants, administrators systems, universities, government agencies, etc)
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How to protect against “malware”?
- Install proper antivirus and a firewall.
- Use strong passwords: It is recommended that passwords do not contain full names, real names or your company as well as well-known numbers (telephone number or date of birth)
The web howsecureismypassword. see the difficulty deciphering your password to a computer - Keep updated the operating system and Web browser of your computer
- Use the “common sense”.. use caution when running software from Internet or peripherals such as CD or USB memories. Do not open pages or emails from unknown or dubious origins.
What antivirus should we use?
Currently, there are plenty of . virus and must choose the solution that best suits our needs
I will make special mention of BitDefender Antivirus Spain for reasons I will explain below:
- has a test laboratory, a technical service . and agreements with universities and public bodies such as the Open University of Catalonia and Warning Center Antivirus
- has multiple certifications and international awards: Bitdefender 2015 has won four awards from PC MAG and CNET, and earned Editor’s Choice excellent critique of PC WORLD. The product is built on an enhanced version of Bitdefender 2014 version, which won the title of “Best Antivirus of 2014” and two Editor’s Choice awards from PC MAG.
- Provides software threats to more than 500 million home users and corporate solutions in more than 180 countries.
It has offices in the US, UK, Germany, Spain (located in Madrid, Barcelona, Vigo, Las Palmas, Valencia and Sevilla), and Peru Romania. It also has a local network of distributors in more than 200 countries. - In addition to the usual anti-virus protection in these applications against malware, spyware, phishing attacks, etc., includes a firewall, manager passwords, Parental Controls, scanner for Facebook profiles (Safego) blocking possible connections that we can get through this network, an application for secure deletion of files and also a Web browser (Safepay) to access its secure any bank that operates on your own desktop without interacting with the rest of the operating system.
- It also offers a free license so you can test their products before purchasing.
All information on:
Bitdefender Antivirus Bitdefender Internet Security
Here you have a video on Full Bitdefender Total Security 2015 (in Spanish)