Here are the most common types of WordPress malware attacks. Permanent malware eradication entails conducting a thorough investigation and determining the type of attack that occurred, how it occurred, and permanently closing that door. This is known as root cause analysis and vulnerability fix in the security world.
🔀 Cross-site scripting (XSS)
The most regularly seen attack type is script injection (XSS attack), rogue scripts are injected into the webpage for malicious purposes. This includes redirects to third-party websites, collecting user data, downloading malware to visitors, etc.
SQL (Structured Query Language) is a language that allows code to interact with databases. Injecting SQL commands into a vulnerable user input section on your WordPress website such as a contact form or search box is considered an SQL Injection attack. Depending on the actual SQL command, this could purge the database, send the data to unauthorized party, inject additional malware in the database, etc.
The path disclosure vulnerability is basically information leak about the physical path to the website on your web-hosting server. A hacker could use this information to aggravate the attack.
🐱💻 Denial-of-Service attack
Also called DoS attack in short, a DoS attacks tries to create fake traffic to overload your website, so much so that it becomes unavailable due to system hog. An extension to DoS is the DDoS attack with stands for Distributed Denial of Service. This one originates from multiple IP addresses.
💻 Arbitrary code execution
eval function? This function evaluates and executes a given piece of code during run-time. This means if you pass it any arbitrary code during run-time, it will execute it. And if somehow the code is malicious, it can be used for nefarious purposes.
🔀 Cross-site request forgery
Remember eCommerce sites asking you not to click on links sent via emails? An attacker could send you a clickable link which executes an action like transfer of money or any other malicious action from your own account.
Data breach or leak can occur due to several reasons. In very simple terms data breach is the leak of data that was intended to be confidential to begin with. For eg. a misconfigured PHP install could output bare credentials if it fails to process the PHP script and instead outputs it as text.
🗄️ File inclusion
File inclusion can be arbitrary, local or remote. If a rogue file is allowed to be included in the application, it can execute malicious code.