Cybersecurity researchers have identified a malicious campaign targeting WordPress websites, employing JavaScript injections designed to redirect users to dubious sites. The investigation began when a website security company observed suspicious third-party JavaScript being served from one of their customer’s WordPress pages.
The attackers modified a theme-related file, known as "functions.php," introducing code that appeared to reference Google Ads to evade detection. This code operates as a remote loader, sending requests to a specific domain and retrieving a dynamic payload that comprises two main components:
- A JavaScript file hosted externally, which contains redirecting code.
- Additional JavaScript that creates a hidden iframe, echoing legitimate Cloudflare scripts to trick users and evade security measures.
The compromised JavaScript domain has also been flagged as part of a traffic distribution system, which connects users to potentially harmful content. The infection triggers when users visit a compromised site, leading to the execution of scripts that ultimately facilitate malware distribution.
To combat such threats, website owners are urged to take necessary precautions. This includes keeping WordPress sites and their plugins updated, enforcing strong password policies, and regularly scanning for anomalies, including unexpected administrator accounts created to maintain persistent access post-detection.
In a related development, a new phishing kit named "IUAM ClickFix Generator" has emerged. This tool allows attackers to create customizable phishing pages mimicking legitimate verification interfaces commonly used by content delivery networks. Such pages can manipulate clipboard data and detect operating systems, allowing attackers to tailor their methods based on the victim’s environment.
This tightening of phishing techniques underscores the evolving complexity of cyber-attacks, making it vital for users and organizations alike to remain vigilant against the increasing sophistication of such threats.
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