How to Trace WordPress Hacks in Your Website?
Since WordPress is a stable and secure platform, it can easily become a victim of hackers if not maintained properly or outdated or poorly developed plugins are used.
Normally, hackers used to hide malicious PHO codes added in WordPress with the help of base64 encoding after which, they opt eval () and base64 decoding to execute codes at runtime. (But, if you are unable to understand WordPress or PHP according to your knowledge, then consult with an experienced WP expert or developer to get assistance).
Luckily for WP users, base64 coding is comparatively easier to be identified in PHP codes as it looks like the following.
As base64 encodes seem to be long strings of random alphanumeric characters, they stand out within the PHP codes. Normally, this type of encoding is helpful for hackers to embed WordPress with PHP codes to output their links, redirect visitors to a certain website and in worse situations, enable unauthorized access to WP database and system.
Users can easily search WordPress theme codes manually for their base64 codes along with finding some efficient plugins that help detect and scan potential malicious codes for them. One of the most famous plugins is the Bullet Proof Security that is designed to prevent WordPress sites against CSRF, Code Injection, SQL injection, XSS, CRLF and RFI hacking attempts.
It is even important to keep in mind that you must review the WordPress installation and WordPress theme on recurring basis while using plugins that are effective in securing WP sites as compared to manual inspection. Knowing how WP sites are created and customized will be helpful in identifying conditions where they are not working properly. It is even easier to spot modifications in code structures that may highlight malicious codes, being injected in the WP themes.