Can Antivirus Software Detect And Remove Ransomware?

Cybersecurity: Understanding Ransomware and Antivirus Software

Ransomware is a type of cyber attack that encrypts a device or network, demanding payment for decryption. This form of malware has been increasingly affecting a wide range of targets, including businesses, individuals, hospitals, and schools. In 2025, approximately 19,000 UK businesses reported ransomware incidents, nearly double the number from the previous year.

Ransomware is a malicious software that encrypts files or entire systems, rendering them unusable unless a ransom is paid, typically in cryptocurrency. Attackers may also steal sensitive data and threaten to release it if the ransom is not fulfilled. This cybercrime impacts both large corporations and smaller entities, with 60% of UK companies affected in 2024.

Antivirus software serves as a primary defense mechanism against cyber threats, operating in the background to detect and neutralize suspicious activities. It employs various techniques to provide comprehensive protection.

This method involves comparing files against a database of known malware codes. If a match is identified, the file is flagged and blocked.

Antivirus software observes the behavior of files and programs in real-time. Anomalies trigger alerts to the user, indicating potential threats.

This approach evaluates unusual behavior rather than exact matches. For instance, if multiple files are encrypted simultaneously, it raises an alert.

Data related to cyber threats is logged in the cloud, enabling antivirus software to preemptively address threats identified globally.

Most reputable antivirus software can detect and block ransomware before it encrypts data. When ransomware attempts to encrypt files, the system's behavior changes, which antivirus software can detect and halt.

If files are already encrypted by ransomware, antivirus software cannot decrypt them unless a specific decryption key is available for that ransomware strain. This scenario is rare, highlighting a limitation of antivirus capabilities.

Preventive Measures Against Ransomware

While antivirus software is crucial, additional proactive measures can mitigate ransomware risks:

Keep systems updated: Regular updates address known vulnerabilities that ransomware may exploit. Select reputable providers: Ensure antivirus solutions include ransomware-specific monitoring features. Be cautious of phishing: Phishing is a common method for distributing ransomware. Exercise caution when handling emails and links.

Based on reporting by techround.co.uk.