What is Malware and Types of Malware

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(Last Updated On: September 20, 2017)

Hello Friends welcome to Quick Malware today I will talk about Malware and tell you about the types of Malware before I continue first I tell you about malware

What is Malware?

It’s should be a software a single file and website that is intended to damage or disable computers files data and computer systems

Types of Malware

We are living in 2017 and everyone know technology is growing very fast every day we’re get something new so I try to share you all types of malware which I know so here is types of Malware

  1. Adware
  2. Bot
  3. Bug
  4. Ransomware
  5. Rootkit
  6. Spyware
  7. Trojan Horse
  8. Virus
  9. Worm
  10. Malware Symptoms
  11. Spam

Adware (short for advertising-supported software) is a type of malware that automatically delivers advertisement. Its common example have pop-up when you visit some website you see when you click anywhere website a pop-up ads will be open that called adware While some adware is solely designed to deliver advertisements, it is not uncommon for adware to come bundled with spyware (see below) that is capable of tracking user activity and stealing information

Bot are software programs created to automatically perform specific operations. While some bots are created for relatively harmless purposes (video gaming, internet auctions, online contests, etc), it is becoming increasingly common to see bots being used maliciously. Bots can be used in botnets (collections of computers to be controlled by third parties) for DDoS attacks, as spambots that render advertisements on websites, as web spiders that scrape server data, and for distributing malware disguised as popular search items on download sites. Websites can guard against bots with CAPTCHA tests that verify users as human.

Bug In the context of software package, a bug could be a flaw produces AN unwanted outcome. These flaws ar sometimes the results of human error and generally exist within the ASCII text file or compilers of a program. Minor bugs solely slightly have an effect on a program’s behavior and as a result will opt for long periods of your time before being discovered. a lot of important bugs will cause blinking or physical change. Security bugs ar the foremost severe style of bugs and might enable attackers to bypass user authentication, override access privileges, or steal information. Bugs are often prevented with developer education, internal control, and code analysis tools

Ransomware is a form of malware that essentially holds a computer system captive while demanding a ransom. The malware restricts user access to the computer either by encrypting files on the hard drive or locking down the system and displaying messages that are intended to force the user to pay the malware creator to remove the restrictions and regain access to their computer. Ransomware typically spreads like a normal computer worm (see below) ending up on a computer via a downloaded file or through some other vulnerability in a network service.

Rootkit A rootkit is a type of malicious software designed to remotely access or control a computer without being detected by users or security programs. Once a rootkit has been installed it is possible for the malicious party behind the rootkit to remotely execute files, access/steal information, modify system configurations, alter software (especially any security software that could detect the rootkit), install concealed malware, or control the computer as part of a botnet. Rootkit prevention, detection, and removal can be difficult due to their stealthy operation. Because a rootkit continually hides its presence, typical security products are not effective in detecting and removing rootkits. As a result, rootkit detection relies on manual methods such as monitoring computer behavior for irregular activity, signature scanning, and storage dump analysis. Organizations and users can protect themselves from rootkits by regularly patching vulnerabilities in software, applications, and operating systems, updating virus definitions, avoiding suspicious downloads, and performing static analysis scans.

Spyware Spyware is a type of malware that functions by spying on user activity without their knowledge. These spying capabilities can include activity monitoring, data harvesting (account information, logins, financial data), and more. Spyware often has additional capabilities as well, ranging from modifying security settings of software or browsers to interfering with network connections. Spyware spreads by exploiting software vulnerabilities, bundling itself with legitimate software, or in Trojans.

Trojan Horse commonly known as a “Trojan,” is a type of malware that disguises itself as a normal file or program to trick users into downloading and installing malware. A Trojan can give a malicious party remote access to an infected computer. Once an attacker has access to an infected computer, it is possible for the attacker to steal data (logins, financial data, even electronic money), install more malware, modify files, monitor user activity (screen watching, keylogging, etc), use the computer in botnets, and anonymize internet activity by the attacker.

Virus form of malware that is capable of copying itself and spreading to other computers. Viruses often spread to other computers by attaching themselves to various programs and executing code when a user launches one of those infected programs. Viruses can also spread through script files, documents, and cross-site scripting vulnerabilities in web apps. Viruses can be used to steal information, harm host computers and networks, create botnets, steal money, render advertisements, and more.

Worm Computer worms are among the most common types of malware. They spread over computer networks by exploiting operating system vulnerabilities. Worms typically cause harm to their host networks by consuming bandwidth and overloading web servers. Computer worms can also contain “payloads” that damage host computers. Payloads are pieces of code written to perform actions on affected computers beyond simply spreading the worm. Payloads are commonly designed to steal data, delete files, or create botnets. Computer worms can be classified as a type of computer virus, but there are several characteristics that distinguish computer worms from regular viruses. A major difference is that computer worms have the ability to self-replicate and spread independently while viruses rely on human activity to spread (running a program, opening a file, etc). Worms often spread by sending mass emails with infected attachments to users’ contacts.

Malware Symptoms While these types of malware differ greatly in how they spread and infect computers, they all can produce similar symptoms. Computers that are infected with malware can exhibit any of the following symptoms:

 

  1. Increased CPU usage
  2. Slow computer or web browser speeds
  3. Problems connecting to networks
  4. Freezing or crashing
  5. Modified or deleted files
  6. Appearance of strange files, programs, or desktop icons
  7. Programs running, turning off, or reconfiguring themselves (malware will often reconfigure or turn off antivirus and firewall programs)
  8. Strange computer behavior

Emails/messages being sent automatically and without user’s knowledge (a friend receives a strange email from you that you did not send)

Spam is the electronic sending of mass unsolicited messages. The most common medium for spam is email, but it is not uncommon for spammers to use instant messages, texting, blogs, web forums, search engines, and social media. While spam is not actually a type of malware, it is very common for malware to spread through spamming. This happens when computers that are infected with viruses, worms, or other malware are used to distribute spam messages containing more malware. Users can prevent getting spammed by avoiding unfamiliar emails and keeping their email addresses as private as possible.