# Complete CSA Analysis of Conti Ransomware with Defense Strategies and Insights Source: https://keepnetlabs.com/blog/conti-ransomware-released-by-csa Published: 2024-01-17 Updated: 2026-10-09 Author: Ozan Ucar, Founder and CEO of Keepnet Category: Conti Ransomware > This blog covers the increasing threat of Conti ransomware, linked to over 1,000 attacks worldwide. Learn how Conti uses MITRE ATT\&CK techniques and explore key ransomware protection strategies from CISA, FBI, and NSA, including MFA, software updates, and phishing awareness. **Conti ransomware** is one of the most dangerous cyber threats facing businesses today. Since its appearance, **Conti has caused over 1,000 attacks**, leading to severe disruptions and financial losses, as reported by the **Cybersecurity and Infrastructure Security Agency (CISA**), FBI, and NSA in their joint advisory. These attacks have primarily targeted industries like healthcare, education, and critical infrastructure. The **Cybersecurity and Infrastructure Security Agency (CISA**), alongside the FBI, NSA, and US Secret Service (USSS), have teamed up to tackle this ransomware directly. In this blog post, we will break down how Conti works, the **MITRE ATT\&CK techniques** it uses, and the most effective strategies for [**ransomware protection**](https://keepnetlabs.com/blog/ransomware-and-smes). ## What is Conti Ransomware? ### Conti Ransomware Definition: What Is It? **Conti Ransomware is** a highly advanced ransomware variant operated by a a cybercriminal group with links to Russia. First identified in 2019, Conti evolved into a ransomware as a service (RaaS) model, allowing affiliates to deploy attacks worldwide. Unlike traditional ransomware, Conti uses double extortion, where attackers encrypt data and threaten to leak stolen information if the ransom is not paid. **Conti ransomware** first appeared in 2020 and quickly gained a reputation as a highly efficient ransomware strain. Unlike other types of ransomware, Conti operates under a [**Ransomware as a Service (RaaS**)](https://keepnetlabs.com/blog/how-to-protect-your-business-against-ransomware) model. This means the people behind Conti lease it to others in exchange for a cut of the profits. This model has led to a sharp rise in attacks targeting businesses of all sizes, especially healthcare, education, and critical infrastructure. One of the biggest Conti attacks happened in Ireland when the Irish Health Service Executive (HSE) was hit. The attack shut down hospital systems and forced staff to rely on manual records. **Conti ransomware** often enters a system through phishing emails or weak [**Remote Desktop Protocol (RDP**)](https://keepnetlabs.com/blog/what-is-ransomware) settings, making it essential for companies to be vigilant about cybersecurity. Although Conti's core operations were disrupted in 2022 following an internal leak of its playbooks and communications, its tactics, techniques, and procedures (TTPs) continue to influence active ransomware groups in 2025 and 2026. Successor groups such as Black Basta, Royal, and Akira have adopted Conti's methods, making this analysis as relevant today as ever. ## How Does Conti Ransomware Work? Conti ransomware typically spreads through: - Phishing emails with malicious attachments or links. - Compromised Remote Desktop Protocol (RDP) access. - Exploits in unpatched software vulnerabilities. - Malicious insider threats planting the ransomware. Once deployed, Conti follows this attack pattern: - Rapid data encryption across networks, disrupting operations. - Data exfiltration, stealing sensitive company information. - Demanding a ransom, usually in Bitcoin, with threats of public leaks. ## Technical Breakdown of Conti Ransomware Conti uses fast and powerful encryption methods to lock down files once it gets into a network. The encryption tool **AES 256** is at the core of its process, making it nearly impossible to recover the data without paying the ransom. But Conti does not stop at encrypting files. Attackers also steal data before locking it, a tactic known as [**double extortion**](https://keepnetlabs.com/blog/ransomware-attacks-are-on-the-rise). This gives them more leverage, threatening to release sensitive information unless their demands are met. What makes **Conti ransomware** stand out is its **multithreaded design**, allowing it to encrypt many files at once, speeding up the attack. It also disables security tools and spreads rapidly across [networks](https://keepnetlabs.com/blog/guide-to-building-a-secure-network-for-your-business), increasing the chances of a large scale [data breach](https://keepnetlabs.com/blog/data-breach-costs-in-2024-escalating-expenses-and-emerging-threats). ## MITRE ATT\&CK Framework and Conti Ransomware To better understand how **Conti ransomware** operates, it helps to look at the [**MITRE ATT\&CK**](https://keepnetlabs.com/blog/email-security-7-biggest-threats) framework. This framework outlines the tactics cybercriminals use to infiltrate and control systems. The Conti group makes use of several **MITRE ATT\&CK techniques**, including: ![MITRE ATT\&CK framework.jpg](https://timely-benefit-e63d540317.media.strapiapp.com/MITRE_ATT_and_CK_framework_62d073a68a.jpg) *Picture 1: MITRE ATT\&CK framework* 1. **Initial Access**: Conti typically starts with a phishing attack, using a malicious attachment or a compromised **RDP** service to gain access to a system. 2. **Privilege Escalation**: After gaining access, attackers use tools like Mimikatz to steal login credentials, allowing them to move further into the system with elevated privileges. 3. **Lateral Movement**: Once inside, **Conti ransomware** spreads across the network, often through [**Remote Desktop Protocol (RDP**)](https://keepnetlabs.com/blog/what-is-ransomware) or other remote services. This helps attackers gain control of critical systems. 4. **Data Exfiltration**: Before encrypting files, Conti uses tools like **Rclone** to steal sensitive data, which they threaten to release if the ransom is not paid. 5. **File Encryption**: The final step is encrypting the files using AES 256 encryption, leaving victims unable to access their data without paying the ransom. Understanding these techniques helps businesses prepare for possible attacks and put proper defenses in place. ## Mitigation Strategies to Defend Against Conti ![How to Protect Your Business from the Conti Ransomware Threat .webp](https://timely-benefit-e63d540317.media.strapiapp.com/How_to_Protect_Your_Business_from_the_Conti_Ransomware_Threat_fcc26287ed.webp) *Picture 2: How to Protect Your Business from the Conti Ransomware Threat* Defending against **Conti ransomware** requires robust **ransomware protection** measures. Here are key strategies recommended by CISA, FBI, and NSA: 1. **Enable Multifactor Authentication (MFA**): Use **MFA** for all remote services, especially admin accounts, to make it harder for attackers to gain unauthorized access. 2. **Patch and Update Regularly**: Many attacks exploit unpatched software. Regular updates of operating systems and applications help prevent attackers from using known vulnerabilities. 3. **Train Employees to Spot Phishing**: Since most attacks start with phishing, **cybersecurity awareness training** is essential. Employees should be able to identify suspicious emails and avoid opening attachments from unknown sources. Consider using a [**phishing simulator**](https://keepnetlabs.com/products/phishing-simulator) to test readiness. 4. **Network Segmentation**: Separate critical systems from less important ones to limit the spread of ransomware. This way, even if one segment is breached, damage to the rest of the network is minimized. 5. **Backup Your Data**: Keep secure, offline backups of critical data. In case of an attack, these backups allow you to restore systems without paying the ransom. 6. **Use Advanced Threat Detection Tools**: Implement **endpoint detection and response (EDR**) and **intrusion detection systems (IDS**) to spot unusual activity early and detect Conti attacks before they escalate. 7. **Conduct Human Risk Assessments**: Most ransomware attacks succeed because of human error. Use Keepnet's [**secure behaviour management platform**](https://keepnetlabs.com/blog/what-is-secure-behaviour-management) to identify your most vulnerable employees and target training where it is needed most. ## The Role of Government Agencies in Combating Ransomware Organizations do not have to fight ransomware alone. Agencies like [**CISA**](https://keepnetlabs.com/blog/what-is-security-awareness), [**FBI**](https://keepnetlabs.com/blog/the-future-of-spear-phishing-top-5-predictions-for-2024), and [**NSA**](https://keepnetlabs.com/blog/what-is-zero-day-exploit) are actively involved in combatting ransomware threats, including **Conti ransomware**. They regularly release alerts and best practices to help businesses strengthen their defenses. For instance, CISA has published several detailed reports on the **MITRE ATT\&CK techniques** used by ransomware groups like Conti. These reports offer practical guidance on preventing and responding to ransomware attacks. In addition, these agencies often collaborate with international partners to track down and disrupt ransomware operators. The joint advisory issued by these agencies in 2022 emphasized the growing threat of Conti and outlined several key [**ransomware protection**](https://keepnetlabs.com/blog/how-effective-is-security-training-in-preventing-cyber-attacks) measures that businesses should adopt to reduce their risk. In 2025 and 2026, CISA has continued to update its guidance to account for Conti successor groups, reinforcing the importance of proactive employee training and phishing incident response capabilities. ## Protect Your Organization from Ransomware Using Keepnet **Ransomware protection** is no longer a luxury. It is a necessity. With ransomware strains like **Conti** and its successor groups wreaking havoc on organizations worldwide, the importance of comprehensive, proactive measures cannot be overstated. One of the most effective ways to defend against these threats is by leveraging [Keepnet](https://keepnetlabs.com/)'s secure behaviour management platform, which combines critical tools such as [**security awareness training**](https://keepnetlabs.com/products/security-awareness-training), phishing simulations, **threat intelligence**, and **incident response** to mitigate human risk and strengthen your organization's resilience against ransomware. ### Security Awareness Training: The Foundation of Defense It all begins with your employees. Many **ransomware** attacks, including Conti, start with human error, often through phishing or other social engineering tactics. [**Security awareness training**](https://keepnetlabs.com/products/security-awareness-training) empowers your staff to recognize and avoid such traps, drastically reducing the likelihood of a successful breach. By using the **Keepnet security awareness training** module, your organization can educate employees on spotting phishing emails, suspicious links, and fraudulent attachments, which are the primary methods used by **ransomware** like Conti. This training can be customized and reinforced regularly to ensure that the security habits of your workforce evolve in line with emerging threats. ### Vishing, Phishing, Smishing, and Quishing Simulations: Strengthen Detection Capabilities Attackers often use a mix of **vishing, email phishing, SMS phishing (smishing**), and **quishing (QR code phishing**) to infiltrate networks. **Keepnet** offers simulation tools designed to test your organization's readiness across all these vectors: - **Email Phishing Simulation**: Email phishing remains the top attack vector for ransomware like Conti. Keepnet's [email phishing simulator](https://keepnetlabs.com/products/phishing-simulator) helps you test and train your employees on identifying phishing attempts, improving their ability to spot and report malicious emails. - **Vishing Simulation**: As attackers turn to attacks delivered over voice calls, **vishing simulation** prepares your team to recognize suspicious calls, particularly those seeking sensitive data. Keepnet offers comprehensive [vishing training and simulations](https://keepnetlabs.com/products/vishing) to combat this growing threat. - **Smishing Simulation**: With the rise of mobile threats, smishing (SMS phishing) poses a significant risk to your network's security. Using Keepnet's [smishing simulator](https://keepnetlabs.com/products/smishing-simulator), you can ensure your team is ready to recognize and avoid phishing attacks delivered via SMS. - **Quishing Simulation**: QR code phishing, or **quishing**, has become more common in recent years. Keepnet's [quishing simulation](https://keepnetlabs.com/products/quishing-simulator) enables your organization to prepare for and defend against these highly deceptive attacks. - **Callback Phishing Simulation**: Ransomware groups increasingly use callback phishing to trick employees into calling numbers controlled by attackers. Keepnet's [callback phishing simulator](https://keepnetlabs.com/products/callback-phishing) helps your team recognize and resist this increasingly common social engineering tactic. By conducting regular, varied simulations across all attack vectors, your employees become a proactive line of defense, minimizing the risk of a ransomware attack. ### Secure Gateway Testing with Email Threat Simulation A significant aspect of protecting against ransomware is ensuring that your email gateway can filter out malicious content before it reaches your employees. **Keepnet's email threat simulator** rigorously tests your email security systems, identifying vulnerabilities that ransomware attackers could exploit. This service helps prevent the entry of phishing emails and other malicious content, which often serve as the entry point for ransomware attacks like Conti. Implement robust [email threat simulation](https://keepnetlabs.com/products/email-threat-simulator) to ensure your email systems are secure. ### Phishing Incident Response: Contain Threats Before They Spread Even with the best defenses, some phishing emails will reach employees. What matters is how quickly your team can respond. Keepnet's [**Phishing Incident Responder**](https://keepnetlabs.com/products/incident-responder) enables your security team to analyze and triage reported phishing emails faster, dramatically reducing the window of exposure that ransomware like Conti exploits after initial delivery. Video: ***Editor's Note: This article was updated on April 10, 2026***. ## Frequently Asked Questions ### What is Conti ransomware? Conti ransomware is a highly sophisticated ransomware as a service (RaaS) strain operated by a a cybercriminal group with links to Russia. It first appeared in 2020 and became notorious for its speed, double extortion tactics, and the scale of its attacks on critical sectors including healthcare, education, and government. Although Conti's core infrastructure was dismantled in 2022, its code and methods live on through successor groups such as Black Basta and Akira. ### Is Conti ransomware still active in 2026? Conti as a brand dissolved in the middle of 2022 after an internal leak exposed its source code and communications. However, its former members regrouped into several active threat clusters that continue to operate in 2025 and 2026. Security researchers track groups including Black Basta, Royal, and Akira as direct inheritors of Conti's tactics, making Conti's playbook a live threat even today. ### How does Conti ransomware spread inside an organization? Conti typically enters through phishing emails carrying malicious attachments, compromised Remote Desktop Protocol (RDP) credentials, or unpatched software vulnerabilities. Once inside, it uses tools like Cobalt Strike, Mimikatz, and Rclone to move laterally, escalate privileges, steal data, and ultimately encrypt files across the network. ### What is double extortion and how does Conti use it? Double extortion is an attack strategy where ransomware operators first steal sensitive data before encrypting it. If the victim refuses to pay the ransom, attackers threaten to publicly release the stolen data on a leak site. Conti was among the first ransomware groups to popularize this approach at scale, significantly increasing pressure on victims to pay. ### What sectors did Conti ransomware target most? According to the joint advisory from CISA, FBI, NSA, and USSS, Conti has attacked over 400 organizations worldwide with particularly heavy targeting of healthcare institutions, emergency services, law enforcement agencies, government bodies, and educational institutions. The 2021 attack on Ireland's Health Service Executive (HSE) is one of the most widely cited Conti incidents. ### What MITRE ATT\&CK techniques does Conti use? Conti maps to several MITRE ATT\&CK techniques, including spearphishing attachment (T1566.001) for initial access, valid accounts (T1078) for privilege escalation, remote services (T1021) for lateral movement, exfiltration over web service (T1567) for data theft, and data encrypted for impact (T1486) for the final encryption stage. Understanding these mappings helps security teams build targeted defenses. ### Can security awareness training prevent Conti ransomware attacks? Yes. Because Conti primarily gains initial access through phishing, training employees to recognize and report suspicious emails is one of the most efficient defenses available. Organizations using Keepnet's [security awareness training](https://keepnetlabs.com/products/security-awareness-training) platform have seen phishing detection rates improve, dramatically reducing the chance that an attack similar to Conti can gain an initial foothold. ### How quickly does Conti encrypt files? Conti is engineered for speed. Its multithreaded encryption engine can process thousands of files simultaneously, making it one of the fastest ransomware strains ever observed. In some documented incidents, Conti completed full network encryption within hours of initial compromise, leaving organizations with little time to intervene without a an incident response plan established in advance. ### What should an organization do immediately after a Conti ransomware attack? CISA recommends isolating infected systems from the network immediately, preserving logs and forensic evidence, contacting law enforcement, and restoring from clean backups where possible. Organizations should not pay the ransom without legal guidance. Having a tested incident response plan and a tool like Keepnet's [Phishing Incident Responder](https://keepnetlabs.com/products/incident-responder) already in place significantly reduces recovery time. ### How does Keepnet help organizations defend against Conti and similar ransomware in 2026? Keepnet addresses the human layer that ransomware like Conti exploits. It provides [phishing simulations](https://keepnetlabs.com/products/phishing-simulator), [adaptive security awareness training](https://keepnetlabs.com/products/security-awareness-training), simulations across multiple attack vectors (vishing, smishing, quishing, callback), email threat simulation to test gateway defenses, and automated phishing incident response. Together, these capabilities reduce an organization's human risk score and ensure employees are prepared to stop the attack chain before ransomware can deploy.