Malware hidden in images

In recent cybersecurity news, a sneaky new malware called GhostPulse is making waves by hiding within image files — specifically, PNG images. This malicious software loader is designed to evade detection by blending into legitimate files, making it a formidable threat for unsuspecting users.

What is GhostPulse?

GhostPulse is a multi-stage malware loader that hides malicious code in seemingly innocent image files, like PNGs. Instead of using typical executable files that antivirus software easily detects, this malware camouflages itself within the pixels of image files. Once the image is opened, the malware is unleashed, bypassing security tools and infecting the victim’s computer. Malware is primarily designed to affect systems running Windows, which is often targeted due to its widespread use in personal, business, and enterprise environments.

How Does GhostPulse Work?

GhostPulse employs steganography—a technique where data is concealed within an image. Here's how it works:

• Embedding Malicious Code: The malware code is hidden within an image's pixel data, making it invisible to the naked eye and most detection systems.
• Execution: When the infected image is processed, GhostPulse decrypts and loads the malicious code, enabling it to run harmful programs without raising red flags.
• Stages of Attack: GhostPulse operates in multiple stages, gradually executing its payload. This modular approach helps it bypass standard defenses.

What Does GhostPulse Do?

Once activated, GhostPulse can:

• Steal sensitive information like login credentials, personal data, or financial details.
• Establish persistence on the victim’s system, allowing continued access for further attacks.
• Inject malicious code into other legitimate processes, further evading detection.

This technique of hiding within images is part of a broader trend in modern malware development where attackers focus on evasion tactics to remain undetected.

How to Stay Safe from GhostPulse

To protect yourself from GhostPulse and similar threats, it's important to follow some essential cybersecurity practices:

• Beware of Suspicious Attachments: Be cautious when opening image files from unknown or untrusted sources, especially in unexpected emails or downloads.
• Keep Software Updated: Ensure your antivirus and all software are up-to-date. This helps in identifying and blocking the latest threats.
• Scan Files Regularly: Use reputable security antivirus tools that can scan files for hidden malicious content, even in images.
• Monitor System Activity: Be aware of unusual behavior, such as slow performance or unexpected processes running in the background.

Sources: TheRegister , Elastic