Over 1.000 WordPress websites were recently infected with malware that implements four different backdoors. This allows attackers to gain sustained access to corporate systems - a potential nightmare for IT security managers, CIOs and CISOs.
The importance of WordPress for businesses cannot be underestimated. The platform is widely used both for corporate websites and for strategic digital platforms such as customer portals and internal communication channels. But it is precisely this popularity that makes WordPress an attractive target for cybercriminals.
The latest attacks show that classic security measures – such as firewalls and standardized antivirus solutions – are not enough to protect companies from such threats. Companies must implement an effective strategy to defend against such attacks.
The discovered JavaScript-based malware uses four different backdoors to maintain persistent access to compromised systems:
A fake plugin (Ultra SEO Processor): Once installed, this malware allows attackers to execute commands and gain full access to the system.
Manipulation of wp-config.php: This central file is modified by the malware to execute malicious JavaScript code.
Depositing old SSH keys: This mechanism allows attackers to maintain remote access to the system even after the malicious code has been removed.
Remote command execution via gsocket.io:
This feature makes it possible to download additional malware and completely compromise systems.
For companies with critical IT infrastructure, this means that even after an initial cleanup of the WordPress instance, a significant security risk remains.
Far too often, companies only act when a threat has already caused damage. But in today's cyber threat environment, security must be addressed proactively:
1. Regular security updates and patch management
Companies need to ensure that their WordPress instances and plugins are always up to date. Cybercriminals are constantly scanning for outdated software with known vulnerabilities.
2. Hardening the WordPress installation
Only users with the necessary permissions should be granted access to critical areas of the WordPress system. In addition, secure authentication procedures such as multi-factor authentication (MFA) should be implemented.
3. Systematic monitoring for anomalies
Attacks like this often go undetected for a long time because they are unnoticed. Companies need to detect anomalies in network and server behavior early on - a SIEM system (Security Information and Event Management) offers decisive advantages here.
4. Use of a zero-trust security model
Zero Trust means that no user or device is considered trustworthy per se. Instead, all access is continuously checked and tracked.
5. Independent security audits and penetration tests
Your own IT department cannot always uncover all vulnerabilities. External security specialists such as ProSec conduct regular audits and penetration tests to identify potential vulnerabilities before attackers do.
Cybersecurity is not only a technical challenge, but also a strategic necessity. ProSec offers you comprehensive solutions to make your WordPress systems and your entire IT infrastructure resilient against attacks.
Our services include:
With ProSec at your side, you not only take a decisive step towards proactive security, but also sustainably protect the business success of your company.
