How to find malware in files OTF, ICO, JPEG, PNG, GIF

Websites can contain hidden malware not only in common formats such as PHP or JavaScript, but also in font formats like OTF or image file like ICO, JPG, PNG. This is due to various mechanisms that can be used to embed malware in files of different formats.

Hidden malware can be injected into image files using a technique known as steganography, which allows data to be hidden within an image or font files OTF. This enables attackers to create files that appear safe at first glance, but actually contain malware code that can be activated when connecting from another file.

In order for such code to be executed, in some php file there will be a call and connection of this malware code.

CleanTalk Security scanner for WordPress can also detect hidden malware code in files such as OTF fonts and ICO, JPEG, PNG, GIF image files.

Installing the plugin and starting scanning will take no more than 5 minutes. Follow the instructions to scan your site for malware code.
https://cleantalk.org/help/install-wordpress-security

In addition to scanning for malware code, the CleanTalk Security for WordPress plugin provides other useful security features such as:
- Web Application FireWall,
- FireWall to block access from suspicious IP's,
- Brute-force Protection,
- Real-time traffic monitor
- and others, the complete list of the plugin's features can be found here https://cleantalk.org/help/security-features