anti viruses

 

Antivirus

Definition

Software that is created specifically to help detect, prevent and remove malware (malicious software).

Antivirus is a kind of software used to prevent, scan, detect and delete viruses from a computer. Once installed, most antivirus software runs automatically in the background to provide real-time protection against virus attacks.

Comprehensive virus protection programs help protect your files and hardware from malware such as worms, Trojan horses and spyware, and may also offer additional protection such as customizable firewalls and website blocking.

Common types of cyber threats

As the Internet of Things (IoT) grows, so does the risk of cybercrime for mobile phones

 and other internet-connected devices, not just your personal computer. According to Symantec’s Internet Security

 Threat Report 2018, malware for mobile devices including spyware, ransomware and viruses increased 54% in 2017;

 and data breaches and identity theft are also on the rise.

What is phishing?

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Phishing attacks use email or fraudulent websites to try to trick you into providing personal or financial information to compromise an account or steal money by posing as a trustworthy entity. They may claim there’s a problem with payment information or that they’ve noticed activity on an account and ask you to click on a link or attachment and provide personal information.

What is malware?

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Malware, short for “malicious software,” is a blanket term that refers to a wide variety of software programs designed to do damage or do other unwanted actions to a computer, server or computer network Common examples include viruses, spyware and trojan horses. Malware can slow down or crash your device or delete files. Criminals often use malware to send spam, obtain personal and financial information and even steal your identity.

What is spyware?

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Spyware is a type of malware that attaches itself and hides on a computer’s operating system without your permission to make unwanted changes to your user experience. It can be used to spy on your online activity and may generate unwanted advertisements or make your browser display certain website sites or search results.

Antivirus programs and computer protection software

Antivirus programs and computer protection software are designed to evaluate data such as web pages, files, software and applications to help find and eradicate malware as quickly as possible.

Most provide real-time protection, which can protect your devices from incoming threats; scan your entire computer regularly for known threats and provide automatic updates; and identify, block and delete malicious codes and software.

Because so many activities are now conducted online and new threats emerge continuously, it’s more important than ever to install a protective antivirus program. Fortunately, there are a number of excellent products on the market today to choose from.

How does antivirus work?

Antivirus software begins operating by checking your computer programs and files against a database of known types of malware. 

Since new viruses are constantly created and distributed by hackers, it will also scan computers for the possibility of new or 

unknown type of malware threats.

Typically, most programs will use three different detection devices: specific detection, which identifies known mal

ware; generic detection, which looks for known parts or types of malware or patterns that are related by a common codebase;

 and heuristic detection, which scans for unknown viruses by identifying known suspicious file structures.'

 When the program finds a file that contains a virus, it will usually quarantine it and/or mark it for deletion, 

making it inaccessible and removing the risk to your device.

Description

SPAM

Spamming is the use of messaging systems to send multiple unsolicited messages to large numbers of recipients for the purpose of commercial advertising, for the purpose of non-commercial proselytizing, for any prohibited purpose, or simply repeatedly sending the same message to the same user

Spam is any kind of unwanted, unsolicited digital communication that gets sent out in bulk. Often spam is sent via email, but it can also be distributed via text messages, phone calls, or social media.

Why is it called spam?

SPAM is an acronym: Special Processed American Meat.

Is spam a type of virus?

They do not contain viruses or malware. They don't try so promote websites or defraud us in any way. The objective of nonsensical spam is simply to test anti-spam and content filters so that spammers can more successfully deliver future messages.

What are the 5 types of spam?

5 Common Types of SPAM & How You Can Protect Yourself Against Them

• Comment Spam.
• Trackback Spam.
• Negative SEO Attack.
• Spiders, Bots and DDoS Attacks.
• E-mail Spam.

MALWARE

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What Is Malware?

Malware is intrusive software that is designed to damage and destroy computers and computer systems. Malware is a contraction for “malicious software.” Examples of common malware includes viruses, worms, Trojan viruses, spyware, adware, and ransomware.

1. Trojans

A Trojan (or Trojan Horse) disguises itself as legitimate software with the purpose of tricking you into executing malicious software on your computer.

2. Spyware

Spyware invades your computer and attempts to steal your personal information such as credit card or banking information, web browsing data, and passwords to various accounts.

3. Adware

Adware is unwanted software that displays advertisements on your screen. Adware collects personal information from you to serve you with more personalized ads.

4. Rootkits

Rootkits enable unauthorized users to gain access to your computer without being detected.

5. Ransomware

Ransomware is designed to encrypt your files and block access to them until a ransom is paid.

6. Worms

A worm replicates itself by infecting other computers that are on the same network. They’re designed to consume bandwidth and interrupt networks.

7. Keyloggers

Keyloggers keep track of your keystrokes on your keyboard and record them on a log. This information is used to gain unauthorized access to your accounts.

How do I protect my network against malware?

Typically, businesses focus on preventative tools to stop breaches. By securing the perimeter, businesses assume they are safe. Some advanced malware, however, will eventually make their way into your network. As a result, it is crucial to deploy technologies that continually monitor and detect malware that has evaded perimeter defenses. Sufficient advanced malware protection requires multiple layers of safeguards along with high-level network visibility and intelligence.

How do I detect and respond to malware?

Malware will inevitably penetrate your network. You must have defenses that provide significant visibility and breach detection. In order to remove malware, you must be able to identify malicious actors quickly. This requires constant network scanning. Once the threat is identified, you must remove the malware from your network. Today's antivirus products are not enough to protect against advanced cyber threats. Learn how to update your antivirus strategy.

DO YOU EVER THINK THAT VIRUS AND MALWARE ARE SAME? WELL I DONT KNOW ABOUT IT  BUT I HAVE FINDED A TABLE FOR THIS AND

HERE ARE SOME DIFFERENCE BETWEEN 

MALWARE AND VIRUS

Difference Between Malware and Virus
Malware	Virus
Definition: Malware is a software which is designed to get unauthorised access of a computer system, generally for a third party benefit.	Definition: A virus is a code which attaches itself to various files and programs which get infected in a manner that they can disrupt and corrupt a device.
Types of Malware include: Virus Trojan Worm Ransomware Spyware Adware	Types of Virus include:  Boot sector Multipartite Spacefiller Resident Polymorphic File infector Direct Action Macro
The full form of Malware is Malicious Software	The full form of Virus is Vital Information Resource Under Seize
A computer system with a malware software can be repaired using an antimalware software	Antivirus is used to remove viruses from a computer device
If a malware software affects your computer device, it may: Try to retrieve personal information Steal data like saved cards or payment details Initiate mining for bitcoin Overpower its presence and execute unwanted tasks	A system attacked by a computer virus can be apprehended if: The processing speed decreases Too many pop-ups appear on the screen Passwords are reset Different programs begin to execute themselves
Examples of Anti-Malware software include: Total AV Bitdefender Malwarebytes Hitman Pro	Examples of Antivirus software are: McAfee Norton Avast Kaspersky

☆💜Additional Tip: Always back up your files!

As mentioned earlier in this article, sometimes malware can cause irrevocable damage — such as file encryption and file loss. To save yourself a lot of trouble, it’s important to keep your files backed up so you can restore them in case something like this happens.

Viruses Blog by BDX

VIRUSES👽

 A computer virus is a kind of malicious computer program, which when executed, replicates itself and inserts its own code. When the replication is done, this code infects the other files and program present on your system. 

💀These computer viruses are present in various types and each of them can infect a device in a different manner. 

To know more about them lets study some basic fundamental of computer viruses:-

👉What is a Computer Virus?

A computer virus is a program which can harm our device and files and infect them for no further use. When a virus program is executed, it replicates itself by modifying other computer programs and instead enters its own coding. This code infects a file or program and if it spreads massively, it may ultimately result in crashing of the device. 

☝Since the computer virus only hits the programming of the device, it is not visible. But there are certain indications which can help you analyze that a device is virus-hit.

 Given below are such signs which may help you identify computer viruses:

• Speed of the System👥– In case a virus is completely executed into your device, the time taken to open applications may become longer and the entire system processing may start working slowly
• Pop-up Windows 👥– One may start getting too many pop up windows on their screen which may be virus affected and harm the device even more
• Self Execution of Programs 👥– Files or applications may start opening in the background of the system by themselves and you may not even know about them
• Log out from Accounts 👥– In case of a virus attack, the probability of accounts getting hacked increase and password protected sites may also get hacked and you might get logged out from all of them
• Crashing of the Device 👥– In most cases, if the virus spreads in maximum files and programs, there are chances that the entire device may crash and stop working

The first thing which you might notice in case of virus attack is the speed with which your system shall process. And then gradually other changes can also be observed. 

         👉  Types of Computer Virus

Different types of computer viruses:

• 💢Boot Sector Virus – It is a type of virus that infects the boot sector of floppy disks or the Master Boot Record (MBR) of hard disks. The Boot sector comprises all the files which are required to start the Operating system of the computer. The virus either overwrites the existing program or copies itself to another part of the disk.
• 💢Direct Action Virus – When a virus attaches itself directly to a .exe or .com file and enters the device while its execution is called a Direct Action Virus. If it gets installed in the memory, it keeps itself hidden. It is also known as Non-Resident Virus.
• 💢Resident Virus – A virus which saves itself in the memory of the computer and then infects other files and programs when its originating program is no longer working. This virus can easily infect other files because it is hidden in the memory and is hard to be removed from the system.
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• 💢Multipartite Virus – A virus which can attack both, the boot sector and the executable files of an already infected computer is called a multipartite virus. If a multipartite virus attacks your system, you are at risk of cyber threat.
• 💢Overwrite Virus – One of the most harmful viruses, the overwrite virus can completely remove the existing program and replace it with the malicious code by overwriting it. Gradually it can completely replace the host’s programming code with the harmful code.
• 💢Polymorphic Virus – Spread through spam and infected websites, the polymorphic virus are file infectors which are complex and are tough to detect. They create a modified or morphed version of the existing program and infect the system and retain the original code.
• 💢File Infector Virus – As the name suggests, it first infects a single file and then later spreads itself to other executable files and programs. The main source of this virus are games and word processors.
• 💢Space filler Virus – It is a rare type of virus which fills in the empty spaces of a file with viruses. It is known as cavity virus. It will neither affect the size of the file nor can be detected easily.
• 💢Macro Virus – A virus written in the same macro language as used in the software program and infects the computer if a word processor file is opened. Mainly the source of such viruses is via emails.

👉How To Protect Your Computer from Virus?

The most suitable way of making your computer virus-free is by installing an Anti-virus software. Such software help in removing the viruses from the device and can be installed in a computer via two means:

• 👻Online download
• 👻Buying an Anti-virus software and installing it 
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👉What is an Anti-Virus?

An anti-virus is a software which comprises programs or set of programs which can detect and remove all the harmful and malicious software from your device. This anti-virus software is designed in a manner that they can search through the files in a computer and determine the files which are heavy or mildly infected by a virus. 

Given below is a list of few of the 💪major antivirus software which is most commonly used:

• Norton Antivirus
• F-Secure Antivirus
• Kaspersky Antivirus
• AVAST Antivirus
• Comodo Antivirus
• McAfee Antivirus

🙌These are few of the many anti-virus software widely used to remove viruses from a device.

💬HERE I M GOING TO SHARE A VIDEO OF TECHNICAL GURUJI SO THEN HE CAN EXPLAIN THE VIRUS AND THE HISTORY OF IT IN A FUN AND IN INTERESTING WAY!!!

💥 https://youtu.be/HcIZWxBct0A 💥