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What You Must Know About Trojan

What You Must Know About Trojan

What is a Trojan horse?


A Trojan horse is a form of damaging software, which at first appears to perform a legitimate or desirable function. A Trojan is an insidious computer program. Once installed the Trojan will perform its expected function, but will do so while gradually damaging the system or stealing information from the database. 
This unfortunately common form of computer virus is derived from the Trojan Horse story that is often cited in Greek mythology. 
General Uses


A Trojan horse may permit a hacker to access a computer system from a remote location. Once a Trojan horse has been installed on a network or personal computer, a hacker may access the information stored on the system remotely, while performing various operations that are limited based on the design of the Trojan horse and the user’s implemented privileges. 
A hacker may use a Trojan horse to perform the following functions on a targeted computer system: 
The hacker may steal data through the installation of a Trojan horse. The hacker may access the user’s credit card information, passwords, banking passwords, and an assortment of other confidential information.
The hacker may use the targeted system as part of a botnet. Through this function the hacker can perform automated spamming or distribute a denial of service attack.
The hacker, through the use of a Trojan horse, may install third-party malware or other programs. 
The use of a Trojan horse allows a hacker to download or upload any file that the individual chooses. The hacker may also modify or delete files stored on the computer’s system. 
The installation of a Trojan horse will also enable the hacker to crash the computer and monitor the user’s actions.  
The above functions require interaction with a hacker, meaning an individual from an outside terminal must utilize the Trojan horse of the targeted computer to perform these illegal actions. 
Adware 


Adware is a disruptive Trojan horse program that takes the form of a benign application. Unlike a computer virus, a Trojan horse does not replicate itself. Adware is an insidious type of Trojan horse that claims to rid a computer of viruses, but instead introduces new infections to the database.  
This form of Trojan horse often takes the form of an anti-virus system. The program may pop-up on an individual’s screen as a trial offer for spyware removal or virus removal. 
When the individual downloads the application, it poses an adverse effect and ultimately acts as a host for an influx of new infections. Once again, the dominant trait associated with this common type of Trojan horse is that it poses itself as a fundamental or benign application only to act as a malignant agent. 

Discover The Facts About Free Antivirus

Discover The Facts About Free Antivirus

What is Anti-Virus Software?

 

Anti-Virus Software is a computer program that is used to prevent,
detect and subsequently remove various forms of malware, including computer
viruses, computer worms, Trojan horses, adware, and spyware. The programs can
be purchased in computer stores or downloaded through the Internet. 


Anti-virus software may be purchased and installed or downloaded
from the Internet to disinfect a user’s computer. Anti-virus software will
incorporate various programs and techniques to identify the presence of
malicious software or computer viruses. These forms of software may damage a
computer or compromise personal information stored on a system.
 


What is a Free Antivirus Download? 


A free antivirus download enables a user to obtain anti-virus
software without paying for the product. That being said, free anti-virus
software is typically limited. A free anti-virus download will not be equipped
with an updated platform or possess the full range of features found in a
paid-for version.
 


A free anti-virus download is typically made available to test a
product’s effectiveness in removing malware. For instance, the leaders in the
market (McAfee and Norton) will offer trial runs in the form of free anti-virus
software to scan a computer’s system and reveal what areas are infected. The
free anti-virus download, in most instances, will not remove the viruses or
infections, but instead will simply point them out. To disinfect the computer
the individual would then have to purchase the full program. 


In addition to the limited removal of viruses, a free anti-virus
program will not update itself, rendering it incapable of detecting new strands
or formations of viruses which possess undetected codes. 


Free Anti-Virus Identification Methods


To identify the presence of malicious software on a computer
platform, a free anti-virus program will institute an assortment of techniques
and technologies to pinpoint abnormal or disruptive behavior. 


Signature-based detection is the most generic identification
method incorporated by an anti-virus program. To identify malicious software
and computer viruses, anti-virus software will compare the contents of a file
to a dictionary of virus signatures. Due to the fact that viruses can be latent
in existing files, the entire file is searched as a whole and in fragments.
 


As new viruses are being created each day, the signature-based
detectio
n approach requires constant updates of the virus signature dictionary.
To achieve constant and thorough updates, anti-virus software companies will
typically allow the user to upload new variants to the software, allowing new
viruses to be analyzed and the attached signature to be added to the
dictionary. 
 


As a result of the different forms of viruses that can be placed
on a computer, a variety of strategies are typically employed in a basic anti-virus
software program. A signature-based detection anti-virus program will
incorporate a search of the system’s hardware. The search is performed to
evaluate known patterns of data within executable codes. That being said, this
form of anti-virus software is susceptible to newer malware for which no
signature is known.
 


To counter this problem (known as zero-day threats) forms of
anti-virus software, known as heuristics, can be employed. A generic signature,
a type of heuristic approach, can effectively identify new computer viruses or
variations of existing viruses by searching the system for malicious code or
variations of such code. 
 


Another type of Heuristic-based detection system incorporated by
anti-virus software is file emulation. This process involves executing a
program in a virtual environment and logging specific actions the program
performs. Depending on the actions present, the anti-virus software can
determine if the program is malicious or not. If the anti-virus software finds
malicious programming, it will carry out appropriate disinfection
actions. 

Quick and Easy Guide to Anti Virus

Quick and Easy Guide to Anti Virus

What is Anti Virus Software?
Anti-Virus Software is a form of computer program that is used to prevent, detect and subsequently remove various forms of malware, including computer viruses, computer worms, Trojan horses, adware, and spyware.  
Anti-virus software may be purchased and installed or downloaded from the Internet to disinfect a user’s computer. 
Anti-virus software will incorporate various programs and techniques to identify the presence of malicious software or computer viruses. These forms of software may damage a computer or compromise personal information stored on a system.


What is Malware?
Malware, which is short for malicious software, is a type of software that is specifically designed to harm or infiltrate a computer system without the owner or user’s informed consent. Malware will incorporate a variety of computer viruses or specific program inhibitors, such as generic computer viruses, Trojan horses, worms, spyware, scareware, and adware. Malware is regarded as the most common mechanism to initiate Internet crime.
What is a Computer Virus?
A computer virus is a computer program that infects an operating system or computer. The term “virus” is held separately from other types of malware, including adware and spyware programs that do not possess the reproductive ability of a computer virus. A traditional computer virus can spread from one computer or system to another (the virus is spread in some form of executable code) particularly when its host is taken to the target computer. For instance, if the virus is uploaded through a removable medium, such as a floppy disc, a DVD, a USB drive, or a CD.

Anti-Virus Identification Methods
To identify the presence of malicious software on a computer platform, an anti-virus program will institute an assortment of techniques and technologies to pinpoint abnormal or disruptive behavior. 
Signature-based detection is the most generic identification method incorporated by an anti-virus program. To identify malicious software and computer viruses, anti-virus software will compare the contents of a file to a dictionary of virus signatures. Due to the fact that viruses can be latent in existing files, the entire file is searched as a whole and in fragments. As new viruses are being created each day, the signature-based detection approach requires constant updates of the virus signature dictionary.
To achieve constant and thorough updates, anti-virus software companies will typically allow the user to upload new variants to the software, allowing new viruses to be analyzed and the attached signature to be added to the dictionary. 
As a result of the different forms of viruses that can be placed on a computer, a variety of strategies are typically employed in a basic Anti-Virus software program. A signature-based detection anti-virus program will incorporate a search of the system’s hardware. The search is performed to evaluate known patterns of data within executable codes. That being said, this form of anti-virus software is susceptible to newer malware for which no signature is known.
To counter this problem (known as zero-day threats) forms of anti-virus software, known as heuristics, can be employed. A generic signature, a type of heuristic approach, can effectively identify new computer viruses or variations of existing viruses by searching the system for malicious code or variations of such code. 
Another type of Heuristic-based detection system incorporated by anti-virus software is file emulation. This process involves executing a program in a virtual environment and logging specific actions the program performs. Depending on the actions present, the anti-virus software can determine if the program is malicious or not. If the anti-virus software finds malicious programming it will carry out appropriate disinfection actions.