Remote Ransomware Attack: What Is It and How To Stop It?

Remote Ransomware Attack: A Growing Worldwide Cybersecurity Challenge

What is it and how to stop it? According to recent sources.

Remote ransomware, also known as malicious remote encryption, is a complex attack that uses compromised endpoints to encrypt data throughout a victim’s network. According to a recent analysis of a recent source, remote ransomware is used within about 60% of human-run ransomware attacks — and it’s a significant threat to most organisations that aren’t prepared or are using lackluster endpoint security.

What is Remote Ransomware?

Once an attacker with ransomware on their mind gains control of a networked endpoint, they will use that compromised endpoint as a means to encrypt data on other devices on the same network. This is what remote ransomware attacks are all about.

One of the things that makes remote ransomware so treacherous for organisations is that the attacker can avoid triggering all of the target device’s security defences, whether ingress analysis and blocking, payload execution, and encryption—on the endpoint they’ve already compromised.

The newly targeted device never sees it coming. One of the primary signs of a remote ransomware attack, says a recent source, is the unusual transmission of documents to and from the compromised device.

Once attackers succeed in compromising a device, they can leverage the organisation’s domain architecture to encrypt data on managed domain-joined machines. All the malicious activity – ingress, payload execution, and encryption – occurs on the already-compromised machine, therefore bypassing modern security stacks. The only indication of compromise is the transmission of documents to and from other machines.

Notably, and not surprisingly, 80% of these attacks originate from unmanaged devices within the network.

The Prevalence and Danger of Remote Ransomware:

According to experts: Cybercriminals favour remote ransomware attacks because they can scale. This scalability also makes these attacks dangerous to enterprises. That’s because a single vulnerable endpoint will jeopardise an entire organisation's network, even if all other devices are protected by advanced security protections.

Attackers are also not limited to specific ransomware variants, as many well-known organisations all support remote encryption capabilities.

Traditional endpoint security products often fail to spot and stop remote ransomware attacks because they focus on detecting malicious files and processes on the protected endpoint. However, because the malicious processes run on the compromised machine in remote ransomware attacks, these security products are rendered ineffective in stopping the spread of encrypted networked endpoints.

Recent sources recommends organisations seek security tools that can identify remote ransomware tactics and stop those tactics before damage can be done.

Enterprises should seek modern endpoint tools that are designed to defend against remote encryption attacks. Such tools would analyse data files for signs of malicious encryption, regardless of where the processes are running.

This enables the security technology to effectively stop all forms of ransomware, including remote attacks and even new, unknown variants.

The Capabilities Enterprises Should Seek Include:

* Detecting malicious encryption by analysing file content with mathematical algorithms.

* Blocking both local and remote ransomware attacks by focusing on the content of files rather than the presence of malicious code.

* Automatically rolling back malicious encryption by creating temporary backups of files and restoring them to their unencrypted state.

* Automatically blocking remote devices attempting to encrypt files on the victim's machine.

* Protecting the master boot record from encryption or wiping attacks.

Of course, preventing and mitigating the impact of these remote ransomware attacks also takes good cybersecurity hygiene. That includes effective firewall configurations that block suspected IP addresses, employ geo-filtering, restricting outbound traffic, and regularly reviewing firewall rules so that they’re as tight as possible.

Other effective measures include implementing a layered security program, that includes attack surface management, security awareness training, system and data backups, and amble incident detection and response capabilities.

Other considerations include strong authentication, including potentially a zero-trust architecture, and network segmentation.

To ensure comprehensive protection, organisations should deploy modern endpoint defences across all endpoints and use network detection and response (NDR) capabilities to monitor network traffic, identify unprotected devices, and detect rogue assets within the environment.

Organisations not currently taking such steps are at a higher risk of falling victim to remote ransomware attacks.

Remote ransomware represents a significant threat to organisations due to its ability to spread rapidly across networks from a single compromised endpoint.

Recent sources recommend focusing on the behaviours of file encryption rather than just malicious code to beat this growing cybersecurity challenge.

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