Malware is software that is specifically designed to disrupt, damage, or gain unauthorized access to a computer system. In this guide you'll learn how to recognize malware and methods to prevent infection of your Windows system.
Tools You'll Need:
A Windows computer
Access to the internet
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2. Tips to Prevent Malware
By definition, Malware, short for malicious software, is any software used to disrupt computer or mobile operations, gather sensitive information, gain access to private computer systems, or display unwanted advertising.
Types of Malware You May Encounter
Ransomware: One particular form of malware that’s been making a lot of headlines lately is Ransomware. This type of malware blocks access to and encrypts your data until a ransom is paid.
Virus: A virus is malicious software attached to a document or file that supports macros to execute its code and spread from host to host. Once downloaded, the virus will lay dormant until the file is opened and in use. Viruses are designed to disrupt a system’s ability to operate and can cause significant operational issues and data loss.
Worm: Worms rapidly replicate and spread to any device within the network. Unlike viruses, worms do not need host programs to disseminate. A worm infects a device via a downloaded file or a network connection before it multiplies and disperses at an exponential rate. Like viruses, worms can severely disrupt the operations of a device and cause data loss.
Trojan: Trojans are disguised as helpful software programs. But once the user downloads it, the Trojan virus can gain access to sensitive data and then modify, block, or delete the data. This can be extremely harmful to the performance of the device.
Spyware: Spyware runs secretly on a computer and reports back to a remote user. Rather than simply disrupting a device’s operations, spyware targets sensitive information and can grant remote access to predators. Spyware is often used to steal financial or personal information. A specific type of spyware is a keylogger, which records your keystrokes to reveal passwords and personal information.
Adware: Adware is used to collect data on your computer usage and provide appropriate advertisements to you. While adware is not always dangerous, in some cases adware can cause issues for your system. Adware can redirect your browser to unsafe sites, and it can even contain Trojan horses and spyware. Additionally, significant levels of adware can slow down your system noticeably.
Types of Infection Methods
Phishing: Phishing often uses social engineering to scare you into giving up valuable data such as usernames and passwords. Phishing has even gone so far as to get credit card information, social security numbers, and banking details. You may receive scam calls or falsified emails posing to be your legitimate bank, the IRS, or other official businesses.
Social Engineering: Social engineering uses learned social skills and queues to steal information from you. Phishing often uses this to scare or manipulate you into giving up banking details, gift cards, social security numbers, and more.
Exploits: Exploits use vulnerabilities in popular software such as web browsers, Java, Adobe Flash Player, and Microsoft Office to infect devices. Keeping your software up to date protects you.
Pirated Software: Websites that offer free downloads of movies or expensive software are often dangerous as malware can piggy back on the file you're downloading.
There are a few ways you can keep your Windows system protected from malware.
Keep Your Windows Operating System Up to Date
Keeping your Windows system up to date is the first line of defense in securing your computer. Microsoft frequently sends out updates and security patches to fix discovered issues and prevent malware from being installed and used.
Using antivirus software is an additional layer of defense. While Microsoft bundles Windows Defender with all Windows systems, there are third party software systems that can also help.
If all else fails and you do manage to get infected, you'll want to have a working backup of your system.
First and foremost, it is always wise to backup you data and backups should be performed regularly. Even beyond the scope of malware or security, it is always prudent to have frequent backups because hard drives can fail, systems can crash, things can break, "life can happen", so you're always better off safe than sorry.
Data backups, just like any type of backup are a matter of redundancy. One backup solution is good, two or more is better.
Offsite backups are always a good idea, especially as a secondary backup. That way if an event happens such as a fire, flood or theft, you have the remote offsite backup to fall back on.
It is always prudent to set your backups to use a versioning scheme. That way if files are corrupted, infected or locked, you don't have to worry about having only one backup which may be the bad version.
If you are using a local backup such as an external hard drive it is always a good idea to disconnect the drive when it is not in use. The reason being, some forms of malware can encrypt or corrupt all data on all connected drives, so a drive that is not connected will not be affected.
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