Malware Definition:
Malware, short for 'malicious software,' is any software intentionally designed to cause harm, steal information, or disrupt operations on a computer system, network, or device. Malware is a broad term that includes various types of harmful software, such as Viruses, Worms, Trojans, Ransomware, and Spyware.
What is Malware?
Malware infiltrates systems through various means, often disguised as legitimate software or hidden in downloads, email attachments, or malicious links. Once installed, Malware can perform a range of actions, from stealing data to encrypting files, or taking control of system functions. It’s commonly used by cybercriminals to execute attacks or gain unauthorised access to sensitive information.
Why is Malware important?
The purpose of Malware is to compromise the security of a device or network to benefit the attacker. Malware can be used for numerous malicious purposes, such as data theft, financial fraud, espionage, and network disruption. Its flexibility and range of functions make it one of the most common tools in cyber attacks.
How does Malware work?
Malware is typically delivered through Phishing emails, malicious downloads, or vulnerabilities in unPatched software. Once Malware is executed, it may install itself on the system, connect to a command and control (C&C) server for instructions, and begin executing harmful tasks. Anti-Malware software and Firewalls are often used to detect and block Malware, although new and evolving strains can bypass standard security measures.
Malware Examples:
Examples of Malware include Ransomware, which encrypts data and demands payment for decryption, and Spyware, which monitors user activities to steal sensitive information. Other types include Trojans, which disguise themselves as benign applications to deceive users, and Worms, which replicate themselves to spread across networks.
Malware Issues:
Malware poses significant risks to both individuals and organisations, potentially leading to Data Breaches, financial loss, and system downtime. Defending against Malware requires robust cybersecurity measures, including regular software updates, employee awareness training, and the use of anti-Malware tools. Advanced Malware strains may evade detection, highlighting the need for layered security and proactive threat monitoring.
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