Category: Cyber Security CII sector

Europol has supported the coordination of a large-scale international operation that has taken down the infrastructure of the Qakbot malware and led to the seizure of nearly EUR 8 million in cryptocurrencies. The international investigation, also supported by Eurojust, involved judicial and law enforcement authorities from France, Germany, Latvia, The Netherlands, Romania, United Kingdom and the United States. Qakbot, operated by a group of organised cybercriminals, targeted critical infrastructure and businesses across multiple countries, stealing financial data and login credentials. Cybercriminals used this persistent malware to commit ransomware, fraud, and other cyber-enabled crimes.

Active since 2007, this prolific malware (also known as QBot or Pinkslipbot) evolved over time using different techniques to infect users and compromise systems. Qakbot infiltrated victims’ computers through spam emails containing malicious attachments or hyperlinks. Once installed on the targeted computer, the malware allowed for infections with next-stage payloads such as ransomware. Additionally, the infected computer became part of a botnet (a network of compromised computers) controlled simultaneously by the cybercriminals, usually without the knowledge of the victims. However, Qakbot’s primary focus was on stealing financial data and login credentials from web browsers.

How does Qakbot work?

- The victim receives an email with an attachment or hyperlink and clicks on it;
- Qakbot deceives the victim into downloading malicious files by imitating a legitimate process;
- Qakbot executes and then installs other malware, such as banking Trojans;
- The attacker then steals financial data, browser information/hooks, keystrokes, and/or credentials;
- Other malware, such as ransomware, is placed on the victim’s computer.

Over 700 000 infected computers worldwide

A number of ransomware groups used Qakbot to carry out a large number of ransomware attacks on critical infrastructure and businesses. The administrators of the botnet provided these groups with access to the infected networks for a fee. The investigation suggests that between October 2021 and April 2023, the administrators have received fees corresponding to nearly EUR 54 million in ransoms paid by the victims. The lawful examination of the seized infrastructure uncovered that the malware had infected over 700 000 computers worldwide. Law enforcement detected servers infected with Qakbot in almost 30 countries in Europe, South and North America, Asia and Africa, enabling the malware’s activity on a global scale.

Over the course of the investigation, Europol facilitated the information exchange between participating agencies, supported the coordination of operational activities, and funded operational meetings. Europol also provided analytical support linking available data to various criminal cases within and outside the EU. The Joint Cybercrime Action Taskforce (J-CAT) at Europol also supported the operation. This standing operational team consists of cybercrime liaison officers from different countries who work on high-profile cybercrime investigations.

Eurojust actively facilitated the cross-border judicial cooperation between the national authorities involved. The Agency hosted a coordination meeting in July 2023 to facilitate evidence sharing and to prepare for this joint operation.

Following the Internet Organised Crime Assessment (IOCTA) 2023, Europol published the spotlight report “Cyber Attacks: The Apex of Crime-as-a-Service”. It examines developments in cyber-attacks, discussing new methodologies and threats as observed by Europol’s operational analysts. The report also outlines the types of criminal structures that are behind cyber-attacks, and how these increasingly professionalised groups are exploiting changes in geopolitics as part of their modi operandi.

Malware-based cyber-attacks, specifically ransomware, remain the most prominent threat. These attacks can attain a broad reach and have a significant financial impact on industry. Europol’s spotlight report takes an in-depth look at the nature of malware attacks as well as the ransomware groups’ business structures. The theft of sensitive data could establish itself as the central goal of cyber-attacks, thereby feeding the growing criminal market of personal information.

As well as shedding light on the most common intrusion tactics used by criminals, the report also highlights the significant boost in Distributed Denial of Service (DDoS) attacks against EU targets. Lastly, among the report’s key findings are the effects the war of aggression against Ukraine and Russia’s internal politics have had on cybercriminals.
Key findings in “Cyber Attacks: The Apex of Crime-as-a-Service”

- Malware-based cyber-attacks remain the most prominent threat to industry;
- Ransomware affiliate programs have become established as the main form of business organisation for ransomware groups;
- Phishing emails containing malware, Remote Desktop Protocol (RDP) brute forcing and Virtual Private Network (VPN) vulnerability exploitation are the most common intrusion tactics;
- The Russian war of aggression against Ukraine led to a significant boost in Distributed Denial of Service (DDoS) attacks against EU targets;
- Initial Access Brokers (IABs), droppers-as-a-service and crypter developers are key enablers utilised in the execution of cyber-attacks;
- The war of aggression against Ukraine and Russia’s internal politics have uprooted cybercriminals, pushing them to move to other jurisdictions.

Europol’s response in fighting cyber-attacks

Europol provides dedicated support for cybercrime investigations in the EU and thus helps protect European citizens, businesses and governments from online crime. Europol offers operational, strategic, analytical and forensic support to Member States’ investigations, including malware analysis, cryptocurrency-tracing training for investigators, and tool development projects. Based in Europol’s European Cybercrime Centre (EC3), the Analysis Project Cyborg focuses on the threat of cyber-attacks and supports international investigations and operations into cyber criminality affecting critical computer and network infrastructures in the EU.

The Cybersecurity and Infrastructure Security Agency (CISA) has released an update to a previously published Cybersecurity Advisory (CSA), Threat Actors Exploiting Citrix CVE-2023-3519 to Implant Webshells. The CSA—originally released to warn network defenders of critical infrastructure organizations about threat actors exploiting CVE-2023-3519, an unauthenticated remote code execution (RCE) vulnerability affecting NetScaler (formerly Citrix) Application Delivery Controller (ADC) and NetScaler Gateway—contains victim information gathered in August 2023. Since July 2023, the Joint Cyber Defense Collaborative (JCDC) has facilitated continuous, real-time threat information sharing with and between partners on post-exploitation activity of CVE-2023-3519. JCDC consolidated and shared detection methods, threat actor tactics, techniques, and procedures (TTPs), and indicators of compromise (IOCs) received from industry and international partners. The updated CSA contains new TTPs as well as IOCs received from some of these partners and an additional victim.
CISA strongly urges all critical infrastructure organizations to review the advisory and follow the mitigation recommendations—such as prioritizing patching known exploited vulnerabilities like Citrix CVE-2023-3519.

The Cybersecurity and Infrastructure Security Agency (CISA) published the Cyber Defense Plan for Remote Monitoring and Management (RMM), the first proactive Plan developed by industry and government partners through the Joint Cyber Defense Collaborative (JCDC) as part of our 2023 Planning Agenda. This Plan provides a clear roadmap to advance security and resilience of the RMM ecosystem and further specific lines of effort in the National Cyber Strategy to scale public-private collaboration and in the CISA Cybersecurity Strategic Plan to drive adoption of the most impactful security measures.

Organizations across sectors leverage RMM products to gain efficiencies and benefit from scalable services. These same benefits, however, are increasingly targeted by adversaries – from ransomware actors to nation-states – to compromise large numbers of downstream customer organizations. By targeting RMM products, threat actors attempt to evade detection and maintain persistent access, a technique known as living off the land.

Part of our 2023 Planning Agenda, the RMM Cyber Defense Plan provides a clear roadmap to advance security and resilience of this critical ecosystem, including RMM vendors, managed service providers (MSPs), managed security service providers (MSSPs), small and medium sized businesses (SMBs), and critical infrastructure operators. This Plan was developed through a multi-month process that leveraged deep expertise by vendors, operators, agencies, and other stakeholders, and has already resulted in a significant deliverable with publication of our joint advisory on Protecting Against Malicious Use of Remote Monitoring and Management Software.

The RMM Cyber Defense Plan is built on two foundational pillars, operational collaboration and cyber defense guidance, and contains four subordinate lines of effort:

(1) Cyber Threat and Vulnerability Information Sharing: Expand the sharing of cyber threat and vulnerability information between U.S. government and RMM ecosystem stakeholders.

(2) Enduring RMM Operational Community: Implement mechanisms for an enduring RMM operational community that will continue to mature scaled security efforts.

(3) End-User Education: Develop and enhance end-user education and cybersecurity guidance to advance adoption of strong best practices, a collaborative effort by CISA, interagency partners and other RMM ecosystem stakeholders.

(4) Amplification: Leverage available lines of communication to amplify relevant advisories and alerts within the RMM ecosystem.

“As envisioned by Congress and the Cyberspace Solarium Commission, JCDC Cyber Defense Plans are intended to bring together diverse stakeholders across the cybersecurity ecosystem to understand systemic risks and develop shared, actionable solutions. The RMM Cyber Defense Plan demonstrates the criticality of this work and the importance of both deep partnership and proactive planning in addressing systemic risks facing our country,” said Eric Goldstein,CISA Executive Assistant Director for Cybersecurity. “These planning efforts are dependent on trusted collaboration with our partners, and this Plan was a true partnership with the RMM community, industry and interagency partners that contributed time and effort towards this important work. The collaboration established to develop this plan has already achieved several accomplishments for RMM stakeholders and ecosystem. As the JCDC leads the execution of this plan, we are confident that this public-private collaboration in the RMM ecosystem will further reduce risk to our nation’s critical infrastructure.”

The Cybersecurity and Infrastructure Security Agency (CISA) releases the Infrastructure Resilience Planning Framework (IRPF) Launchpoint, a supplemental resource developed to help prospective users of the IRPF quickly navigate IRPF guidance and concepts based on their specific needs.

This self-appraisal tool helps users contemplate their community’s resilience goals and start developing an approach to incorporating critical infrastructure resilience into their planning activities by pointing them to specific IRPF guidance, resources, and templates that might be most relevant and valuable to them.

“The IRPF Launchpoint is a great resource created by our Resilience Services Branch that provides SLTT and regional planners with insights on how best to apply the Infrastructure Resilience Planning Framework to meet their specific needs,” said Dr. David Mussington, Executive Assistant Director for Infrastructure Security. “As one of many resilience resources within CISA, the new IRPF Launchpoint tool will guide users to specific resources they can employ in planning for infrastructure to reduce the risk of disruptions to their communities.”

Infrastructure is the backbone of communities, providing not only critical services, but also the means for health, safety, and economic growth. CISA’s IRPF provides flexible guidance for state, local, tribal, territorial, and regional planners on enhancing community resilience by addressing critical infrastructure dependencies in their existing planning efforts.