Antivirus and its Techniques

Antivirus Basic Introduction

  • Antivirus software is created to prevent the computer from various unwanted attack by detecting malicious software, normally called malware, on your computer and, when suitable, removing the malware and disinfecting the computer. Malware can be classified into various kinds, namely, Trojans, viruses (infectors), Ransomware, pop-ups, droppers, worms, and so on. Antivirus software is particular secure software that aims to give better control on viruses than that offered by the original operating system (such as Windows or Mac OS X). In most cases, it is used as a precautionary solution. However, when that fails, the Antivirus software is used to disinfect the infected programs or to completely clean malicious software from the operating system.

Antivirus Software and its techniques

  • Antivirus software uses various techniques to methods to identify malicious software, which often self-protects and hides deep in an operating system or in the kernel files. New malware may use unrecognized operating system functionality and difficult to understand issues in order to persist and avoid being detected infections. Because of the larger attack on these days, Antivirus software is designed to protect with all kinds of malicious payloads coming from both trusted and untrusted operating systems and other sources. Attempts that Antivirus software applications try to save and protect an operating system from with nasty degrees of success like network issue packets, spamming email attachments and exploits for different browsers and document readers like an acrobat, as well as executable programs running on the operating system.

Antivirus Software and its basic working

  • The most basic Antivirus Software works are to do scanning for the entire computer system or where ever it is installed because they were command line scanners that tried to identify malicious patterns in .exe programs. Antivirus Software has changed a lot since then. For example, many Antivirus Software products no longer include command-line scanners. Most Antivirus Softwares now uses Graphical User Interface (GUI) scanners that check scan every single file that is created, modified, or accessed by the operating system or by the user. They also used firewalls to detect malicious software attempts that use the network to disturb the normal functioning of the computers, install browser add-ons to detect web-based exploit, separate browsers for safe payment, create kernel drivers for Antivirus Software self-protection or sandboxing, and so on.

Evolution of Malware and Anti-Malware Software.

  • The rapid evolution of malware and anti-malware software applications products is now driven by a money motivator rather than focus on the safety of cyber laws.  In the early days, virus creators used to write a special kind of file infector that focused on performance on the functions which is now not done by others in order to gain recognition or just as a personal challenge for earning more money. Now, malware development is a highly profitable business for big organization which used to extort money from computer users, as well as steal their credentials for various online services such as Flipkart, Amazon, Yahoo mail and Google Mail, as well as banks and payment platforms like Paypal; the common goal is to make as much money as possible. Some players in the malware industry can steal email credentials for your Yahoo or Gmail accounts and use them to send spam or malicious software to thousands of users in your name. They can also use your stolen credit card information to issue payments to other bank accounts controlled by them or to pay mules to move the stolen money from dirty bank accounts to clean ones, so their criminal activity becomes harder to trace.

Fast Growing of Malware and its types.

  • Another fast-growing common type of malware is created by governments, false organizations, or companies that sell malware (spying software) to governments, who in turn spy on their own people’s activities. Some software is designed to harm foreign countries’ infrastructures.

Malware Development

  • Big improvements and the huge amounts of money invested in malware development have forced the Antivirus Software industry to change and evolve and increase their market dramatically over the last decade. Unluckily, the defensive side of information security, where Antivirus Software lies, is always behind the offensive side. Usually, an Antivirus Software company cannot detect malware which is still hidden inside the computer system or if it is still unknown to them, especially if there is some quality assurance during the development of the malware software piece. Antivirus Software evasion is a key part of malware development, and for attackers, it is important that their malware stay hidden as long as possible. Many commercial malware packages, both legal and illegal, are sold with a window of support time. During that support period, the malware product is updated so it bypasses detection by Antivirus Software or by the operating system antivirus. Alternatively, malware may be updated to detect and fix bugs, add new features, and so on.

Antivirus product and third party access to it.

  • An antivirus product may not always offer third-party developers direct access to its core and do the correction; instead, it may offer access to command-line scanners to develop it further for the new threats. Some Antivirus Software products may not give access to command-line scanners they may only allow access to the GUI scanner or to a GUI program to configure how the real-time protection, or another part of the product, handle malware detection and disinfection. The Antivirus Software product also comes with the other security and utility programs, such as browsers, browser toolbars, drivers for self-protection, firewalls, defender, security setup and so on. As you can see, the product is the whole software package the Antivirus Software company ships to the customer, while the scanners are the tools used to scan files and directories, and the kernel includes the core features offered to higher-level software components such as the GUI or command-line scanners.

Antivirus Software and Malware bytes

  • Most Antivirus software engines other like old Malware bytes software, which was not a fully Antivirus product, are written in non-managed and local languages such as C, C++, or in both. Antivirus engines must execute as quickly as possible without degrading the system’s performance. Native languages fulfill these requirements because, when a code is compiled, they run natively on the host CPU at full speed.



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