The Top 5 Most Popular Method Ransomware Is Delivered And Deployed

Ransomware is undoubtedly one of the most popular and damaging forms of malware that threatens nearly everyone these days. If ransomware breaches a vulnerable system, files can be encrypted and users locked out, and the attackers will typically demand cryptocurrency payments to offer a decryption key. Presently, the cybersecurity agency estimates that ransomware will cost America $20 billion this year alone. Here are some of the most common ransomware delivery methods today.

How Is Ransomware Delivered?

Cybercriminals are employing more sophisticated technology to hack systems and retrieve data. Also, these criminals are delivering ransomware in creative ways worth knowing to prevent falling victim. Some of these ransomware delivery methods include:

Exploit Kits

Exploit kits are high-end toolkits that exploit security vulnerabilities. An exploit kit is often executed when an unsuspecting victim visits a compromised website. Then, malicious code embedded somewhere on the website, like an advertisement, secretly redirects you to the exploit kit’s landing page. If your system is vulnerable, it will become infected after a drive-by download of a malicious payload is executed. Then, the attackers can access your critical files and hang on to them for ransom.

Malicious Email Attachments

Cyber attackers typically craft emails from a seemingly credible source like Human Resources or IT when they employ this ransomware delivery method. Then, the attackers attach a malicious file like a .JS file, Word Document, or portable executable (PE) file. Unsuspecting victims usually open the attachments, assuming the email originates from a trusted source. However, the ransomware payload is unintentionally downloaded, and the system is infected, granting the attackers access to your files which will be held for ransom.

Malicious Email Links

Malicious email links are URLs embedded in the body of emails, much like malicious email attachments. Similarly, these emails seem to come from someone or an organization you believe is a trusted source. However, these URLs download links to malicious files all over the web, and your system will be infected once you click them.

How To Protect Your Computer From Ransomware

• Install An Excellent Firewall Program
• Download files and software from trusted websites only
• Do not open links, attachments, and suspicious emails from unknown sources.
• Ensure that your PC runs the latest operating system version with all the latest patches for added security.
• Store essential files in the cloud, as cloud storage services usually have built-in ransomware detection and recovery.
• Use a secure, modern web browser like Google Chrome, Mozilla Firefox, or Microsoft Edge.
• Restart your computer at least once weekly to ensure that the applications and operating systems are updated, helping your system run better.
• Invest in removable drivers for backup.
• Develop a consistent backup routine to ensure that you backup your files regularly.
• Install a dedicated ransomware blocker.

What Are the Most Common Ransomware Delivery Methods Used by Attackers?

Ransomware can reach an organization through several initial access methods, and attackers increasingly combine multiple techniques during the same campaign. Common ransomware delivery methods include phishing emails, malicious links and attachments, exposed RDP and VPN services, exploited software vulnerabilities, drive-by downloads, compromised websites, removable media, pirated or trojanized software, stolen credentials, and supply-chain compromises.

Attackers may also abuse legitimate remote-management tools, compromised third-party accounts, and cloud services to deliver ransomware without relying on traditional malware downloads. Once they gain initial access, they can escalate privileges, move laterally across the network, disable security controls, and deploy ransomware across multiple systems.

Common Ransomware Delivery Methods:

• Phishing Emails: Attackers send convincing emails containing malicious attachments, links, or fake login pages that can deliver ransomware or steal credentials.
• Malicious Links and Attachments: Links to compromised websites or weaponized files can trigger malware downloads when users open them.
• Exposed RDP and Remote Services: Attackers target internet-facing RDP and other remote-access services using stolen, weak, or compromised credentials.
• Exploited Software Vulnerabilities: Unpatched operating systems, applications, VPN appliances, and internet-facing systems can provide an entry point for ransomware.
• Drive-by Downloads: Visiting a compromised or malicious website can expose users to malware through browser or software vulnerabilities.
• Compromised Websites and Malvertising: Attackers can inject malicious scripts or advertisements into legitimate websites to redirect users toward ransomware payloads.
• Stolen or Compromised Credentials: Reused, leaked, or stolen credentials can allow attackers to access corporate systems and deploy ransomware using legitimate accounts.
• Remote-Management Tools: Threat actors may abuse legitimate remote-access and management software to gain control of endpoints and distribute malicious payloads.

How does ransomware spread across a network after initial infection?

After the initial infection, ransomware can spread across a network through compromised credentials and remote access services. Attackers may use stolen administrator accounts, RDP, or other remote-access tools to access additional systems and deploy the ransomware payload.

Ransomware can also spread through SMB, Active Directory, and network shares. Attackers may abuse shared folders, domain accounts, and elevated privileges to move between endpoints and servers, potentially affecting large portions of the organization’s infrastructure.

Once attackers gain sufficient access, they may disable security controls, access additional systems, and deploy ransomware across multiple endpoints and servers simultaneously, increasing the attack’s impact and disrupting critical business operations.

What is the difference between ransomware delivery and ransomware deployment?

Ransomware Stage	Description	Typical Attack Activity
Delivery	The method used to enter the organization.	Phishing, malicious links, vulnerable software, RDP, VPN, or stolen credentials
Initial Access	The attacker establishes a foothold in the compromised environment.	Exploiting vulnerabilities or using compromised accounts
Execution	The ransomware code is activated on the infected system.	Malicious files, scripts, applications, or remote tools
Lateral Movement	The attacker moves from one system to other systems on the network.	RDP, SMB, Active Directory, network shares, and stolen credentials
Deployment	The ransomware is distributed across targeted devices and servers.	Administrative privileges, scripts, remote-management tools, and domain accounts
Encryption & Extortion	Files are encrypted, and victims are pressured to pay a ransom.	Data encryption, data theft, system disruption, and ransom demands

How do stolen credentials help attackers deploy ransomware?

Stolen credentials give attackers unauthorized access to business systems, applications, and network resources. Attackers may obtain credentials through phishing, credential-stealing malware, password reuse, or prior data breaches.

After gaining access, attackers may try to escalate privileges to obtain higher-level permissions. Compromised administrator or domain accounts can provide broader access to endpoints, servers, Active Directory, and other critical resources.

Attackers can then use legitimate remote-access tools and services, such as RDP, VPNs, and remote-management platforms, to move through the environment. Because these tools are legitimate business utilities, it can be harder to distinguish their misuse from normal administrative activity.

With sufficient privileges, attackers can use administrative accounts, scripts, remote tools, or network shares to deploy ransomware across multiple endpoints and servers. This lets a single compromised account drive widespread encryption and business disruption.

Ransomware Initial Access and Deployment Techniques

• Initial Access: Attackers gain entry through phishing, stolen credentials, exposed RDP/VPN services, or exploited vulnerabilities.
• Payload Delivery: Attackers deliver the ransomware payload through malicious attachments, links, downloads, compromised websites, or remote-access tools.
• Execution: The malicious payload runs on the compromised device and begins performing ransomware-related activities.
• Persistence: Attackers maintain access through compromised accounts, scheduled tasks, services, or other system mechanisms.
• Lateral Movement: Attackers spread across the network using stolen credentials, RDP, SMB, Active Directory, and network shares.
• Deployment: Attackers deploy ransomware across targeted endpoints, servers, and network resources before encryption begins.

How Can Businesses Detect Ransomware Delivery Attempts?

Businesses can detect ransomware delivery attempts by monitoring phishing emails, suspicious attachments, malicious links, and spoofed senders. Email security tools can identify suspicious messages and block known malicious URLs or files before employees interact with them.

Organizations should also monitor malicious downloads and unusual software activity. Unexpected executable files, unauthorized installations, suspicious scripts, and downloads from untrusted websites can indicate a ransomware attempt.

Monitoring RDP, VPN, and authentication activity can help identify unauthorized access. Repeated login failures, unusual login locations, abnormal access times, and unexpected administrator activity may indicate compromised credentials or an attempted intrusion.

Finally, businesses should use EDR, SIEM, and network monitoring tools to monitor suspicious processes and abnormal file activity. Unusual command-line activity, tampering with security tools, rapid file modifications, or access to large numbers of files can provide early warning of ransomware activity.

5 Ways Ransomware Is Delivered And Deployed

1. Email Phishing

A reported 97.25% of phishing emails contain some ransomware. Therefore, it is clear that email phishing campaigns are among the favorite ransomware delivered methods cyber attackers use. Email phishing involves using legitimate-looking emails to trick individuals into opening a ZIP file, Word, Excel, or PDF attachment. After opening these attachments, the ransomware encrypts and holds essential files for the cyber attacker. Also, attackers may trick individuals into clicking a malicious link. If successful, the URL redirects the user to a malicious site that triggers the ransomware download.

2. Remote Desktop Protocol (RDP)

Cybercriminals can also deploy ransomware through RDP, a communication protocol that grants IT admins access to systems. Hackers use port scanners to scour the web for exposed ports since RDP usually initiates its requests through port 3389. Once systems with exposed ports are identified, attackers can crack the login credentials and log in as admins.

3. Drive-by Downloads

Drive-by downloads are also one of the widespread ransomware delivered methods. With drive-by downloads, cybercriminals can deliver malware by exploiting weaknesses in the backend of legitimate websites. Then, they hide malicious software on this site or redirect site visitors to pages they control. You can prevent drive-by downloads by using ad-blockers and deleting unnecessary browser plugins.

4. Removable Media

Cybercriminals can also inject malware into removable media like memory sticks and flash drives and wait for individuals to connect them to their computers. If your system is connected to an enterprise network, the ransomware can potentially infect an entire organization. Luckily, many advanced antiviruses can detect and remove malware from removable devices.

5. Pirated Software

Some cracked software comes bundled with adware that may conceal ransomware, so you risk infecting your system if you download such software. Additionally, websites that host pirated software can be more vulnerable to drive-by downloads and malvertising. Also, pirated software doesn’t receive official developer updates so that cyber attackers can exploit key security weaknesses.

Why Select Externetworks For Managed Ransomware?

Our managed ransomware service includes protection via a managed antivirus so your business can receive a complete protection solution. Also, we adopt a proactive approach to threat detection and neutralization and can act quickly when an attack occurs to minimize data loss and downtime.

Please get in touch with us today at www.extnoc.com to get started.