Malware includes viruses, spyware, and other unwanted software that installs on your computer or mobile device without your consent. These programs can block your device and can be used to monitor and control your online activity. They can also make your computer vulnerable to viruses and spread unwanted or inappropriate ads. Criminals use malware to steal personal information, send spam and commit fraud.
Each type of malware has its own way of doing damage, and most rely on the action of the user. Some strains are delivered via email via a link or an executable file. Others are delivered via instant messaging or social media. Even mobile phones are vulnerable to attack. It is essential that organizations are aware of all vulnerabilities in order to establish an effective line of defense.
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What are some common types of malware?
- Spyware – As its name suggests, spyware is used to spy on a user’s behavior. Spyware can be used to monitor a user’s browsing activity, display unwanted ads, and edit affiliate marketing feeds. Some spyware uses a so-called keylogger to record the user’s keystrokes, giving the attacker access to sensitive information, including usernames and passwords.
- Viruses – A virus is a malicious program that can be integrated into an operating system or software, the victim must run the operating system or open the infected file to be affected.
- Worms – Unlike viruses, worms self-replicate and transmit themselves on a network. The user does not have to run any software to become the victim, just connect to the infected network.
- Trojan Horses -These are malware hidden in other software useful to encourage the user to install them. Pirated copies of popular software are often infected with Trojans.
- Rootkits – These packages are designed to modify an operating system so that unwanted installations are hidden from the user. A famous example is the Sony rootkits scandal in 2005, when Sony sold 22 million music CDs infected with a rootkit that secretly installs software to disrupt the copy of CDs on the buyer’s computer. This rootkit opened the door to other attackers by allowing them to target infected computers with additional malware.
- Ransomware – This software can encrypt files or even a complete operating system on a computer or network and keep them encrypted until a ransom is paid to the attacker. The emergence of Bitcoin and other crypto-currencies has spurred the popularity of ransomware attacks, as attackers can anonymously accept money and minimize the risk of being caught.
How does Malware enter in your system
- E-mails: When you read e-mail, malware spreads through attachments, so it’s always best to scan them before you download them.
- Removable media: USBs are another common way that malware attacks and spreads in a system. Even systems in a computer lab can be infected with malware. When you transfer files from an infected system to your system with a USB key, the infection also enters your system.
- Websites: There are many sites, infested with different malware, that enter your computer when you visit them.
How to Know If a Computer Is Infected with Malware?
Various signs indicate that a computer has been infected with malicious software.
- Often, the machine would run more slowly than usual if the infection had occurred.
- Especially for adware infections, many pop-ups would open up and interfere not only with the machine’s performance, but also with the user’s experience.
- It is common for a machine to crash if malware is present. Of course, this would be detrimental to the user and in such cases it may be necessary to completely replace the machine in case the malware can not be eradicated.
- Higher network activity volume, even when the user is not connected to the Internet at all, or any other online connection to servers to download or download present data. In such cases, various checks should be made to rule out infection with malware or any other cause of irregularity.
- Another, more social way to find out if a user’s computer has been infected is to hear from their network of friends or colleagues that they have received unwanted or suspicious messages from the user who, in his opinion, were sent.
In short, any irregularities, whether they are unwanted desk elements, a slow down of the machine or unusual error messages, may indicate that something is wrong and needs to be examined.
How Ram Malware Removal protect your system
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