AvosLocker Ransomware Gang Targets Critical Infrastructure Sectors in the US

In recent years, the rise of ransomware attacks has wreaked havoc across industries worldwide. Among the many ransomware gangs operating today, the AvosLocker gang has emerged as a formidable threat, particularly targeting critical infrastructure sectors in the United States. This article delves into the tactics employed by AvosLocker, its techniques for evasion and attribution challenges, as well as the recommendations put forth by the Cybersecurity and Infrastructure Security Agency (CISA) and the Federal Bureau of Investigation (FBI). Additionally, we explore the surge in ransomware attacks experienced in 2023, the main entry points leveraged by threat actors, the lowered barrier to entry for criminals, and the impact of such attacks on small organizations.

Emergence and Techniques of AvosLocker Ransomware

AvosLocker first appeared on the scene in mid-2021, targeting a myriad of industries and organizations. What sets AvosLocker apart is its utilization of sophisticated techniques to disable antivirus protection and successfully evade detection. This ransomware strain has proven to be a formidable adversary, consistently staying one step ahead of security measures.

Living-off-the-Land Tactics and Attribution Challenges

A hallmark of AvosLocker attacks is the strategic use of open-source tools and living-off-the-land (LotL) tactics. By leveraging legitimate software and open-source remote system administration tools, AvosLocker affiliates manage to infiltrate organizations’ networks without raising any alarms. This leaves little to no trace that could lead to the attribution of attacks, making it challenging for security experts to trace back the origin of the ransomware.

Recommendations by CISA and FBI

To combat the growing threat posed by AvosLocker and similar ransomware strains, CISA and the FBI have issued crucial recommendations to critical infrastructure organizations. These organizations are urged to implement necessary mitigations to reduce the likelihood and impact of AvosLocker ransomware attacks. It is crucial for businesses to remain vigilant and proactive in implementing enhanced cybersecurity measures.

Surge in Ransomware Attacks in 2023

Ransomware attacks have reached unprecedented levels in 2023, causing significant disruptions and financial losses across various sectors. One alarming trend is the speed at which threat actors deploy ransomware after gaining initial access. More than 50% of incidents observed ransomware being deployed within one day of the initial breach. It is imperative for organizations to fortify their defenses and build resilience against such swift attacks.

Initial Access Vectors for Ransomware Attacks

Threat actors have multiple entry points to exploit when launching ransomware attacks. Exploitation of public-facing applications, stolen credentials, and the use of off-the-shelf malware are the three largest initial access vectors. Additionally, external remote services have emerged as a vulnerable point of entry. Organizations must strengthen their security posture by plugging these gaps and implementing strict access controls.

The lowered barrier to entry and lucrative nature of ransomware

The Ransomware-as-a-Service (RaaS) model has become increasingly prevalent, allowing even novice criminals to launch ransomware attacks. The readily availability of leaked ransomware code further lowers the barrier to entry into this illicit world. The potential for immense financial gains continues to attract individuals to engage in ransomware attacks, posing a significant challenge for law enforcement agencies and organizations alike.

Impact on small organizations

Contrary to popular belief, ransomware attacks do not solely target large corporations. Microsoft’s annual Digital Defense Report revealed that 70% of organizations falling victim to human-operated ransomware had fewer than 500 employees. Small businesses are particularly vulnerable due to inadequate cybersecurity measures and limited resources. The impact of ransomware attacks on small organizations can be devastating, leading to operational disruptions and financial strain.

Increase in Remote Encryption During Ransomware Attacks

Microsoft’s investigation into ransomware attacks revealed a troubling trend: a sharp increase in the use of remote encryption during human-operated ransomware attacks. This method allows threat actors to encrypt files remotely, potentially crippling organizations’ operations without ever setting foot on their premises. Over the past year, remote encryption has accounted for approximately 60% of attacks. This highlights the evolving tactics employed by ransomware operators and the need for organizations to adopt multi-layered security defenses.

The AvosLocker ransomware gang poses a significant threat to critical infrastructure sectors in the United States. Their sophisticated techniques, reliance on open-source tools, and living-off-the-land tactics make them difficult to attribute and mitigate. To combat this rising menace, organizations must heed the recommendations put forth by CISA and the FBI, implement robust cybersecurity measures, and remain vigilant against evolving tactics. By fortifying defenses and investing in proactive security measures, businesses can better defend against ransomware attacks, safeguard their critical infrastructure, and protect their valuable assets from falling into the hands of malicious actors.

Explore more

Why is LinkedIn the Go-To for B2B Advertising Success?

In an era where digital advertising is fiercely competitive, LinkedIn emerges as a leading platform for B2B marketing success due to its expansive user base and unparalleled targeting capabilities. With over a billion users, LinkedIn provides marketers with a unique avenue to reach decision-makers and generate high-quality leads. The platform allows for strategic communication with key industry figures, a crucial

Endpoint Threat Protection Market Set for Strong Growth by 2034

As cyber threats proliferate at an unprecedented pace, the Endpoint Threat Protection market emerges as a pivotal component in the global cybersecurity fortress. By the close of 2034, experts forecast a monumental rise in the market’s valuation to approximately US$ 38 billion, up from an estimated US$ 17.42 billion. This analysis illuminates the underlying forces propelling this growth, evaluates economic

How Will ICP’s Solana Integration Transform DeFi and Web3?

The collaboration between the Internet Computer Protocol (ICP) and Solana is poised to redefine the landscape of decentralized finance (DeFi) and Web3. Announced by the DFINITY Foundation, this integration marks a pivotal step in advancing cross-chain interoperability. It follows the footsteps of previous successful integrations with Bitcoin and Ethereum, setting new standards in transactional speed, security, and user experience. Through

Embedded Finance Ecosystem – A Review

In the dynamic landscape of fintech, a remarkable shift is underway. Embedded finance is taking the stage as a transformative force, marking a significant departure from traditional financial paradigms. This evolution allows financial services such as payments, credit, and insurance to seamlessly integrate into non-financial platforms, unlocking new avenues for service delivery and consumer interaction. This review delves into the

Certificial Launches Innovative Vendor Management Program

In an era where real-time data is paramount, Certificial has unveiled its groundbreaking Vendor Management Partner Program. This initiative seeks to transform the cumbersome and often error-prone process of insurance data sharing and verification. As a leader in the Certificate of Insurance (COI) arena, Certificial’s Smart COI Network™ has become a pivotal tool for industries relying on timely insurance verification.