Common Ways Networks Are Attacked by Ransomware

Common Ways Networks Are Attacked by Ransomware

February 3, 2025

Ransomware attacks continue to be one of the most damaging cyber threats, targeting businesses, government institutions, and individuals. These attacks encrypt files and demand a ransom to restore access, often causing severe financial and operational disruptions. Understanding the most common methods attackers use to deliver ransomware can help organizations strengthen their defenses. Here are some of the primary ways networks are compromised:


1. Phishing Emails

Phishing remains the most widely used method for ransomware delivery. Attackers craft emails that appear legitimate, often impersonating trusted entities such as colleagues, service providers, or financial institutions. These emails typically contain malicious attachments or links that, when opened, execute ransomware on the victim’s device, spreading across the network.


2. Malicious Downloads & Drive-By Attacks

Users can unknowingly download ransomware from infected websites, often through software downloads, fake updates, or misleading advertisements. Drive-by downloads occur when users visit compromised websites, triggering an automatic download of malware without any interaction.


3. Remote Desktop Protocol (RDP) Exploits

Cybercriminals frequently exploit weak or improperly secured Remote Desktop Protocol (RDP) access to deploy ransomware. Attackers use brute force attacks to guess login credentials or exploit unpatched vulnerabilities to gain unauthorized access to a network, allowing them to install and execute ransomware directly.


4. Software Vulnerabilities & Unpatched Systems

Ransomware can spread through security flaws in outdated software. Attackers actively scan for unpatched vulnerabilities in operating systems, enterprise applications, or network devices to gain unauthorized access and execute ransomware. Notorious attacks like WannaCry exploited unpatched Windows vulnerabilities to infect thousands of systems worldwide.


5. Malvertising (Malicious Advertising)

Cybercriminals inject malicious code into online ads that appear on legitimate websites. Clicking on these ads redirects users to malicious sites or triggers automatic malware downloads, including ransomware infections. Even reputable ad networks can be exploited to distribute malware through unsuspecting users.


6. Supply Chain Attacks

Attackers may compromise third-party software providers or IT service providers to distribute ransomware to multiple organizations. This method is particularly dangerous because it bypasses traditional security measures by exploiting trusted software updates or partnerships.


7. USB & Removable Media Attacks

Removable storage devices like USB drives can be used to spread ransomware. Attackers leave infected USB devices in public places, waiting for unsuspecting users to plug them into their systems, inadvertently launching malware.


How to Defend Against Ransomware Attacks

While ransomware threats are constantly evolving, organizations can take proactive measures to reduce their risk:

  • Employee Training: Educate staff on recognizing phishing emails and suspicious links.
  • Regular Software Updates: Keep operating systems and applications patched to close security loopholes.
  • Strong Passwords & Multi-Factor Authentication (MFA): Secure RDP and other remote access services with strong credentials and MFA.
  • Network Segmentation: Limit ransomware spread by isolating critical systems from general network access.
  • Frequent Data Backups: Maintain offline and cloud backups to restore data in case of an attack.
  • HyperBUNKER Protection: Utilize HyperBUNKER’s advanced cybersecurity solutions to safeguard against ransomware attacks. Their secure infrastructure and proactive threat mitigation strategies provide businesses with robust protection against evolving cyber threats.

By staying informed and implementing robust cybersecurity measures, businesses can significantly reduce their risk of falling victim to ransomware. Being proactive is the key to protecting valuable data and maintaining business continuity in an ever-evolving cyber threat landscape.

 

Author: Denis Eskic