What is a common method to host malicious code on a website?

Using advertisement space is indeed a common method to host malicious code on a website. This method capitalizes on the fact that ads are often loaded dynamically and can be placed in various locations on a webpage. Attackers can exploit ad networks to inject malicious scripts into legitimate websites, which then get executed in users' browsers without their knowledge. Once the malicious code is embedded in the advertisement, it can redirect users to phishing sites, steal sensitive information, or perform other malicious activities.

While embedding malicious code directly in HTML can also pose a threat, attackers frequently prefer to use third-party advertisement space because it allows them to leverage the wide reach and credibility of established platforms. This enhances the likelihood that users will engage with the content, as they often trust display ads served by familiar networks.

Creating fake user accounts and distributing with social media links, while potentially harmful in other contexts, typically does not involve hosting malicious code directly on a website and, therefore, is less applicable as a common method of code distribution compared to the exploitation of advertisement space.