In short, spyware is a specific type of unwanted software that covertly collects your information. A virus is a specific way software can be covertly distributed, often by e-mail. Both spyware and viruses can cause damage to your computer or cause you to lose important data. To help protect against spyware, try Windows Defender. For viruses, consider Windows Live OneCare or software from another antivirus provider.
Skip to main content. Worms are malicious programs that make copies of themselves again and again on the local drive, network shares, etc. The only purpose of the worm is to reproduce itself again and again. Unlike a virus, it does not need to attach itself to an existing program. Worms spread by exploiting vulnerabilities in operating systems. Due to its replication nature it takes a lot of space in the hard drive and consumes more CPU uses which in turn makes the pc too slow also consumes more network bandwidth.
Macro Virus: These type of virus infects word, excel, PowerPoint, access and other data files. Once infected repairing of these files is very much difficult. Master boot record files: MBR viruses are memory-resident viruses and copy itself to the first sector of a storage device which is used for partition tables or OS loading programs. A MBR virus will infect this particular area of Storage device instead of normal files. These are also memory resident in nature. As soon as the computer starts it gets infected from the boot sector.
Cleaning this type of virus is very difficult. They infect program files and when the infected program is executed, these viruses infect the boot record. When you boot the computer next time the virus from the boot record loads in memory and then start infecting other program files on disk. Polymorphic viruses: A virus that can encrypt its code in different ways so that it appears differently in each infection.
These viruses are more difficult to detect. Stealth viruses: These types of viruses use different kind of techniques to avoid detection. For example, the Whale virus adds bytes to an infected file; then the virus subtracts the same number of bytes from the size given in the directory.
Generically adware is a software application in which advertising banners are displayed while any program is running. Adware can automatically get downloaded to your system while browsing any website and can be viewed through pop-up windows or through a bar that appears on a computer screen automatically. Adwares are used by companies for marketing purpose.
A cookie is a plain text file that is stored on your computer in a cookies folder and it stores data about your browsing session. Cookies are used by many websites to track visitor information A tracking cookie is a cookie which keeps tracks of all your browsing information and this is used by hackers and companies to know all your personal details like bank account details, your credit card information etc. Spamming is a method of flooding the Internet with copies of the same message. Most spams are commercial advertisements which are sent as an unwanted email to users.
Spams are also known as Electronic junk mails or junk newsgroup postings. These spam mails are very annoying as it keeps coming every day and keeps your mailbox full. Misleading applications misguide you about the security status of your computer and shows you that your computer is infected by some malware and you have to download the tool to remove the threat.
As you download the tool it shows some threats in your computer and to remove it you have to buy the product for which it asks some personal information like credit card information etc. A typical website even the simplest blog may have thousands of potential vulnerabilities. Continue Reading. Change Language. Related Articles. Table of Contents. Save Article. Improve Article. Like Article. Last Updated : 18 Sep, Virus : A virus is a malicious executable code attached to another executable file which can be harmless or can modify or delete data.
0コメント