These may end up becoming the words of my imaginary friends or colleagues. The friend that disables the antivirus on the computer.
What are malwares?
Any program or file that intentionally causes harm to a computer, network, or server is known as malware, or malicious software.
Malware comes in various forms, such as spyware, Trojan horses, worms, ransomware, and computer viruses. These malicious programs alter or hijack essential computer functions, steal, encrypt, and delete sensitive data, and keep an eye on end users’ computer activities.
How do malware infections happen?
Malware creators disseminate their malicious software across networks and devices using a range of both physical and digital channels.
Malicious software can, for instance, be installed on a computer via a USB drive, common collaboration tools, or drive-by downloads, which silently and automatically install malicious software onto computers without the user’s awareness or consent.
Malware creators often work with programmers who crack licensed software to distribute their malicious software by first prompting you to disable your antivirus , just like my imaginary friend does.
As a user of these software, you may feel that you do not have anything vital on your computer. Bad cyber actors however think differently. They might steal useful information from you and use them to scam unsuspecting persons, especially those related or close to you.
Are there differences between malwares and viruses?
All viruses are malware but not all malware are viruses.
There are no good viruses if you have once asked yourself that question.
The reasons why there are no good viruses are:
Lack of Control.
Once released, the person who has released a computer virus has no control on how this virus will spread.
Recognition Difficulty.
In general it is not always possible to distinguish between a virus and a non-virus program.
There is no reason to think that distinguishing between “good” and “bad” viruses will be much easier. Many people are relying on generic anti-virus defenses (e.g., activity monitoring and/or integrity checking) which will trigger a response to changes.
Resource Wasting.
A computer virus eats up disk space, CPU time, and memory resources during its replication.
Bug Containment.
A computer virus can easily escape a controlled environment.
Compatibility Problems.
A computer virus that attaches itself to user programs would disable several programs on the market that perform a checksum on themselves at runtime.
What is an antivirus?
Computers and mobile devices are protected from malware, hackers, and cybercriminals by antivirus software.
Antivirus software is able to recognize, block, and safeguard against malicious software, infected links, and other threats and suspicious activity by examining data on your hard drive and data that is incoming from the internet, including websites, email messages and attachments, and applications.
How is an antivirus programmed to identify malwares and viruses on computers?
Signature detection
Antivirus programs use signature detection to look for specific pieces of code that are found in known viruses in order to contain and remove them.
Signature detection is a core component of most antivirus software, but it’s reactive – a virus must be known for its signature to be added to antivirus software.
Heuristic detection
While there is a type of virus called a heuristic virus that attacks and disables antivirus software, the heuristic detection method examines code for suspicious architecture and behavior rather than a specific signature.
Intrusion prevention via HIPS
HIPS (host intrusion prevention system) monitors activity within a single host system for changes and behaviors that indicate a virus is present. Some HIPSs work by weighing new activity or behaviors against a list of trusted software and then blocking the new systems from stepping beyond the bounds of what the HIPS designates as safe behavior.