New Osiris Ransomware: A Growing Cybersecurity Concern for Northeast India

In the rapidly evolving digital landscape, cybersecurity threats continue to pose significant risks for businesses worldwide, including those in Northeast India. A recent development is the emergence of a new ransomware family known as Osiris, which has already targeted a major food service franchisee operator in Southeast Asia.

A New Player in the Ransomware Scene

Osiris, a brand-new ransomware strain, was unveiled by cybersecurity researchers in January 2026. Despite sharing no similarities with an earlier variant named Osiris that emerged in 2016, it is assessed to be a sophisticated piece of malware, with an "effective encryption payload" that suggests the involvement of experienced attackers.

The BYOVD Technique

One of the key aspects of the Osiris attack was the use of a malicious driver called POORTRY as part of a known technique called bring your own vulnerable driver (BYOVD). This method allows attackers to disarm security software, making it easier to infiltrate and encrypt targeted systems.

Potential Connections and Implications

Researchers have identified clues suggesting that the threat actors behind the Osiris attack may have been previously associated with the INC ransomware, also known as Warble. This potential link underscores the interconnectedness of cybercrime networks and the need for vigilance in the face of evolving threats.

Ransomware Threats in the Indian Context

The rise of ransomware attacks is a global concern, and Northeast India is not immune to this threat. As businesses in the region increasingly rely on digital platforms, they become more vulnerable to cyberattacks. Understanding the tactics, techniques, and procedures (TTPs) used by ransomware groups can help organizations implement effective cybersecurity measures.

The Shifting Ransomware Landscape

The ransomware landscape is constantly changing, with some groups disappearing and others emerging. In 2025, the most active players included Akira, Qilin, Play, INC, SafePay, RansomHub, DragonForce, Sinobi, Rhysida, and CACTUS. Understanding the tactics and modus operandi of these groups can help organizations stay one step ahead of potential threats.

For instance, Akira ransomware campaigns have been known to exploit vulnerabilities in Throttlestop, Windows CardSpace User Interface Agent, and Microsoft Media Foundation Protected Pipeline. Understanding these vulnerabilities can help organizations protect their systems.

Looking Ahead

As the cybersecurity landscape continues to evolve, it is crucial for businesses in Northeast India to stay informed about the latest threats and to implement robust cybersecurity measures. This includes monitoring the use of dual-use tools, restricting access to RDP services, enforcing multi-factor authentication, using application allowlisting, and implementing off-site storage of backup copies.

While encrypting ransomware remains a significant threat, the advent of encryptionless attacks adds another layer of risk. By staying vigilant and proactive, businesses can minimize their exposure to these threats and protect their digital assets.