A malicious URL scanner is a tool that can identify and warn users of potentially dangerous links in emails, texts, websites, browser popup ads, and other forms of online communication. These tools are useful for reducing the threat of malware and other types of cyberattacks that can compromise computer systems, steal sensitive data, and otherwise cause damage.

Malicious URLs are used to deliver phishing attacks, distribute spam, promote malware, and more. They can be hidden in otherwise legitimate-looking text, images, and logos to make them appear more convincing. Often, a victim can only identify the malicious URL by hovering over it, but even this technique does not work 100% of the time. The best way to identify a malicious URL is to use an advanced security scan tool.

Protect Your Network with a Malicious URL Scanner

There are many different tools available for scanning URLs. Some are as simple as copying a link and pasting it into Google’s VirusTotal, which checks it against 50 antivirus engines for free. Others are more advanced and have heuristics that analyze the code of an HTML page and run dynamic content in a sandbox to look for suspicious behavior. The disadvantage of this approach is that the software may have false positives and may need to contact Web Risk servers to confirm matches and disambiguate.

A more secure approach is to use a supervised machine learning algorithm that has been trained on a large dataset of known malicious URLs. These algorithms are known as Support Vector Machines (SVM), and they have the advantage of being able to detect new malicious URLs without needing human intervention, so long as a sufficient training set has been provided.