F5 BIG-IP malware injects a PHP web shell into memory, leaving targeted scripts unchanged on disk while commands run through web requests.

A Linux rootkit targeting devices in F5 BIG-IP APM environments can intercept PHP file loading and inject a fileless web shell directly into memory, avoiding the need to write malicious code to disk.

Attackers are exploiting CVE-2026-27540 in WooCommerce Wholesale Lead Capture to upload PHP web shells and gain remote code ...

Discover how a WooCommerce plugin exploited a recent PHP vulnerability to install backdoors on WordPress sites and what you must do to protect your website now.

By compromising BIG-IP APM systems, attackers may gain access to credentials, SSO tokens and trusted pathways into downstream applications.