Ransomware Defense Using The Wazuh Open Source Platform 2025

Ransomware is malicious software designed to block access to a computer system or encrypt data until a ransom is paid. This cyberattack is one of the most prevalent and damaging threats in the digital landscape, affecting individuals, businesses, and critical infrastructure worldwide.

A ransomware attack typically begins when the malware infiltrates a system through various vectors such as phishing emails, malicious downloads, or exploiting software vulnerabilities. Once activated, the malware encrypts files using strong cryptographic algorithms, rendering them inaccessible to the legitimate owner. The attackers then demand payment, usually in cryptocurrency like Bitcoin, in exchange for the decryption key.

Modern ransomware variants have evolved beyond simple file encryption. Some employ double extortion tactics, where attackers encrypt data, exfiltrate sensitive information, and threaten to publish it publicly if the ransom is not paid. This puts pressure on victims, particularly organizations handling confidential customer data or proprietary business information.

Understanding ransomware creation and distribution is essential for developing effective defense strategies. The ransomware lifecycle involves sophisticated development processes and diverse propagation methods that exploit technical vulnerabilities and human behavior.

Ransomware is typically developed by cybercriminal organizations or individual threat actors with programming expertise. The creation process involves:

Ransomware spreads through multiple attack vectors:

The impact of ransomware extends far beyond the immediate encryption of files. Organizations and individuals affected by ransomware experience multiple consequences that can have long-lasting repercussions on operations, finances, and reputation.

Ransomware attacks inflict financial damage beyond file encryption. Victims may face ransom demands ranging from hundreds to millions of dollars, with no guarantee of data recovery even after payment. Additional expenses arise from incident response, forensic investigations, system restoration, and security enhancements, while regulatory non-compliance can lead to substantial legal fines and penalties for data breaches.

Ransomware attacks cause significant operational disruption by crippling access to vital resources. Critical business data, customer information, and intellectual property may be lost or compromised, while essential services become unavailable, impacting customer

Source: The Hacker News