Malware is any software mainly designed with objectives of disrupting your system, steal of data (spying on you) and data destruction.
Malware is an umbrella term used to identify many different types of malicious software. To understand its more general concept and to prevent and remove malware. First, we need to know about typology of malwares.
What are the different types of malware?
- Computer virus – has the ability to spread to other systems by copying itself during the exchange of data. Viruses perform harmful actions, like destroying systems and data.
- Adware – such types of malware shows unwanted ads on your interface and generate revenue for its author. Annoying pop-ups are an example of these ads.
- Trojan horse– mimic itself as a regular file to trick the user into downloading unwanted malware. It is the most common type of malware.
- Worm – copy itself and spread over the network and occupy a lot of bandwidth which makes internet very slow. This malware can delete files and send documents through email.
- Rootkit – a bundle of programs specifically designed to access your computer remotely without being detected.
Key logger– is a type of malware that runs in the background and saves every keystroke made in the targeted system. Keystrokes might contain usernames, passwords, important pin codes, and sensitive documents.
Have I been infected by a malware?
Usually, the most common symptoms of a malware infection are:
- Frequent system and program crash
- Hard disk often have excess activity even when you are not using it
- Slow internet connection
- Unwanted pop-up ads and windows
- Web browser unresponsive and freezing
- Sudden occupation of disk space
- Unknown icons on your computer
- Blockage of access to the control panel, command prompt, registry editor and task manager
- Unusual message appears on screen
How to prevent malware infection?
Here are some precautionary measures that you must adopt in order to prevent malware
- Keep your windows/Mac OS always up-to-date
- Activate Windows firewall
- Always take seriously windows warning messages. Never ignore them !
- Never download and install pirated software
- Don’t click Ok or Run on pop-up window messages to install unknown software
- Always browse through reliable and secure web browsers like Google Chrome, Microsoft Edge, Mozilla Firefox and Opera, and keep them updated
- Do not open unknown and strange looking URL
- When copying data via flash drive or USB always scan it first before performing the transfer
How to remove a malware (for windows only)?
Step 1. Create a backup of all your folders and documents before start removing malware
Regardless of malware infection, you need to create a backup of all your data. You can save your data in an external storage drive like a flash drive or external hard drive.
Step 2. Your PC should be in safe mode with networking
Step 3. Remove all temporary files
To make a smooth and quick scan remove all the unnecessary data stored in your system. Click right on windows drive then go to properties> disk cleanup.
Step 4. Use any malware removal tool
You can use malware bytes, super anti-spyware, Kaspersky TDSSkiller, and ADWcleaner to remove a malware infection from your system.
Step 5. Reset Browsing settings
Malware often changes browser settings to re-infect your system.
Open your browser Right click> properties. Under the Shortcut tab, target field is located. What happens is that malware may alter this field, and whenever you run your browser, it will go to that page, which surely is a malicious website.