COMPUTER VIRUSES AND LATEST ANTI VIRUSES
Computer Virus: A computer virus is a malicious piece of code or software which affects the
normal functioning of a computer. Viruses may disrupt the system by hijacking system memory,
surreptitiously collect data or shut down the system altogether.
viruses such as malware, trojans and network viruses. Many prominent software companies
specialise in antivirus software. Some of the biggest software vendors who develop and market
antivirus software are McAfee, Norton, Eset and Kaspersky Labs.
TYPES OF VIRUSES
GEEKSFORGEEKS
Types of Viruses
A virus is a fragment of code embedded in a legitimate program. Virus are self-replicating and are designed to infect other programs. They can wreak havoc in a system by modifying or destroying files causing system crashes and program malfunctions. On reaching the target machine a virus dropper(usually trojan horse) inserts the virus into the system.
For more details, refer this.
Various
types of virus :
File Virus : A file virus also called file injector or file-infecting virus is a malware that infects your
files with the intent to cause permanent damage or make files unusable. A file-infecting virus
overwrites code or inserts infected code into a executable file.
Boot sector Virus : It infects the boot sector of the system, executing every time system is
booted and before operating system is loaded. It infects other bootable media like floppy disks.
These are also known as memory virus as they do not infect file system.
Macro Virus : Unlike most virus which are written in low-level language(like C or assembly
language), these are written in high-level language like Visual Basic. These viruses are triggered
when a program capable of executing a macro is run. For example, macro virus can be contained in spreadsheet files.
Source code Virus : It looks for source code and modifies it to include virus and help to spread it.
Polymorphic Virus : A polymorphic virus is a harmful, destructive or intrusive type of malware that can change or
"morph," making it difficult to detect with antimalware programs. Evolution of the malicious
code can occur in a variety of ways such as filename changes, compression and encryption with variable keys
each time it is installed. The functionality of virus remains same but its signature is changed.
Encrypted Virus : In order to avoid detection by antivirus, this type of virus exists in encrypted
form. It carries a decryption algorithm along with it. So the virus first decrypts and then
executes.
Stealth Virus : A stealth virus,as the name suggests, is a hidden computer virus that attacks
operating system processes and tactfully fools the operating system and anti-virus or anti
-malware tools into believing that everything is in good shape.
Multipartite Virus : This type of virus is able to infect multiple parts of a system including boot
sector,memory and files. This makes it difficult to detect and contain.
Armored Virus : An armored virus is coded to make it difficult for antivirus to unravel and
understand. It uses a variety of techniques to do so like fooling antivirus to believe that it lies
somewhere else than its real location or using compression to complicate its code
Malware Virus:
Malware is a type of virus. It is defined as malicious software which corrupts computer and mobile operations and provides unauthorized access to a private system or displays harmful content. The information on a specific system gets copied without the user’s notice and disrupts the normal operation. Usage of malware specific tools or antivirus helps to prevent malware. Malware is spread through careless use of browser extensions, email attachments and storage media
LATEST ANTIVIRUSES
Avast
Antivirus
Avast is one of the most trusted names in the genreration of free antivirus available in the
market. More than 220 million people have chosen this antivirus to keep their PC safe online.
Recently the security system has celebrated the 100 millionth download of its mobile security and antivirus worldwide.
Norton
Antivirus
Norton antivirus from Symantec is one of the most popular antiviruses that are used all over the world. Many corporates placed their trust in this popular security software. This is a patented antivirus that protects your PC from any kind of online and offline threats. This antivirus offers social networking protection and 24/7 support.
McAfee
Antivirus
It offers antivirus security for home usage, home offices and also large organizations. The
company offers a range of security technology including Data Center Security, Database
Security, Endpoint Protection, Mobile Security and much more. It delivers proactive and proven solutions and services in order to keep your systems safe and secure.
Eset
Antivirus
This antivirus is available both for home as well for business. Their fast and award-winning
antivirus software give you peace of mind while surfing the internet. The evasive threats and
exploitation of browser and application are protected when you use Eset antivirus in your
computers. The Social Media Scanner helps to protect your Facebook and Twitter accounts.
TrendMicro
Antivirus
You can secure your home PC as well as your business data by using the TrendMicro antivirus.
This antivirus is smart, simple and secure that fits all your security requirements. This antivirus
offers smart protection for your PC and is simple to use. It also offers mobile security and it does not slow down the processing of your machine.
Bitdefender
Antivirus
This antivirus is regarded as one-click antivirus because of its feature of removing the virus from your PC in just one click. This antivirus is simple yet powerful. It offers both total and internet security antivirus software for your PC that comes with loads of features and specifications for optimized security.
Webroot
Antivirus
This is the numerouno brand name in the US in the field of internet security. The latest antivirus
software has the capability to combat not only viruses but also against spyware and phishing
attacks. It protects your PC from unsafe websites and also protects your identity and social network thefts.
Avira
Antivirus
Avira offers free and paid antivirus software ranges for both Mac and PC. The software maker uses the same award-winning technology for building both free and premium antivirus software. The antivirus helps you keep your PC malware-free. The antivirus is light yet powerful and simple and easy to use.
Kaspersky
Antivirus
This popular antivirus software offers security against computer viruses, Trojans, spyware, rootkits and many others. The best part is this antivirus does not undermine the performance of your PC. Your PC will respond as fast it used to before installation of Kaspersky antivirus ( Best Kaspersky Deals and coupons are found at MyDealsClub). The heuristic scanner rapidly reacts to the new and emerging threats as well.
F-Secure
Antivirus
This antivirus is always up-to-date and offers high-end protection against malware. This
software instantly responds against any kind of threats and stops intrusions. It does not slow
down your PC and this antivirus is easy to install and simple to use. This software offers advanced protection for your PC against any kind of online threat.
AVG
Antivirus
The AVG antivirus is available for your PC, Mac, Tablet and also mobile. Their award-winning
antivirus software is a must-have for any kind of device that you want to protect. The best part
is it is a free antivirus and offers the range of service that equals any paid antivirus software.
Norman
Antivirus (Acquired by AVG)
This is an effective antivirus that protects your PC from any kind of malicious software. The new
interface of the software is easy to navigate and it contains smart default settings. The latest
version of the software has a simple user interface and offers better protection by its blocking and cleaning tools.
Bullguard Antivirus
Bullguard
Antivirus
The Bullguard internet security comes with a 60-day free trial offer that you can use for protecting your PC. Its simple interface has a low impact on system resources. This antivirus offers the best protection against malware. The antivirus auto-scans your PC for cleaning purposes and makes your PC virus-free.
G Data
Antivirus
The G Data antivirus is not just an antivirus that only protects your PC from viruses, Trojans,
spyware, and malware but also offers some extra features like encryption of your personal data
and reliable device control. This antivirus protects your system from every other threat that the
online transaction can pose for you.
Panda Security Antivirus
If you have a Panda Seity antivirus on your computer your computer is safe from any kind of
viruses. This software also safeguards you from any kind of online fraud and prevent data theft
from your computer. This also offers you to backup your valuable data. You can download the
free trial to test the effectiveness of it.
EScan Antivirus
eScan antivirus and internet security suites are designed and developed to support home, small office setups and also for large enterprises. This software offers comprehensive antivirus and content security solutions that protect your machine from any kind of online threat. You can try the free trial version before buying the complete antivirus suite.
Vipre
Antivirus
This is one of the top antivirus software that ensures the protection of your PC but won’t slow it
down. The 2014 version of the antivirus software is an all-in-one security solution to protect
your PC from any kind of online threat. The always-on feature of the software scans and protects your PC from real-time threats.
Adaware By
Lavasoft Security
The Ad-Aware Pro Security suite from Lavasoft is one of the most comprehensive and all-in-one
security suites that any system should have. This security suite offers a complete line of
defense mechanism that protects your PC from any kind of extreme malware and other cyber
threats. This suite offers the most advanced kind of defense.
TrustPort
Antivirus
This is an ideal basic protection antivirus that you can have on your PC in order to protect it
from spyware and viruses. The best part of this antivirus is that it gets automatically updated
from the online resource and is always ready to stop the latest, viruses, Trojans, malware and worms.
Total
Defense Antivirus
Total Defense antivirus offers the most comprehensive spyware and virus protection for your
PC. It has best-in-class rootkit protection as well. The design of this software is based on an
intuitive interface and it has a central control as well. Its quick scan feature is one of its kind and it is convenient to install in just one click.
Pareto
Logic Antivirus
The antivirus software from Pareto Logic is a trusted name in the field of security of PCs across
the world. Its defense mechanism against spyware is and the XoftSpy antivirus
of this software maker is used by millions of users across the world. This software keeps the malware away from your computer.
F.Prot
Antivirus
This antivirus is powerful antivirus for your Windows PC. This antivirus program is reliable, easy-
to-use and does not slow down the performance of your computer. This antivirus program offers real-time file system protection.❤
Zone Alarm
Antivirus
This is advanced antivirus software that offers advanced real-time protection from malware and
updates the program automatically. This program offers advanced two-way firewall protection
along with identity protection and Facebook privacy scan. Enhanced Browser Protection is a new feature that is included in the program.
ViRobot
Antivirus
This antivirus offers loads of features like anti-spyware, anti-SPAM, network protection, folder
protection, and vulnerability analysis along with the antivirus feature. This means it is the one-
stop-shop for all your security requirements. This program gives you logs and reports with multi
-language support from the manufacturer. This is a powerful antivirus program that you should have.
Trend Micro
House call
Trend micro offers a number of other free tools that you may
be interested in as well, like the anti-ransomware toolkit, browser guard, and
rootkit buster.
