Evaluating Cookies to Hide Backdoors

Evaluating Cookies to Hide Backdoors

Identifying website backdoors is not always an easy task. Since a backdoors primary function is to conceal itself while providing unauthorized access, they are often developed using a variety of techniques that can make it challenging to detect.

For example, an attacker can inject a single line of code containing less than 130 characters into a website file. While this may not seem like a lot of code, this short string can be used to load PHP web shells on your website at the attacker’s whim —  while also preventing website visitors and administrators from detecting the malicious behavior.

Continue reading Evaluating Cookies to Hide Backdoors at Sucuri Blog.

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