Ransomware

Explore the Huntress Ransomware Threat Library to uncover Tactics, Techniques, and Procedures (TTPs), prevention strategies, and best practices to safeguard against ransomware threats.

Blacksuit ransomware is a sophisticated strain of malware that encrypts files and demands payment for their release. Designed to target mid-sized organizations and critical infrastructure sectors, it aims to disrupt operations and extract financial gain from its victims. Known for its stealthy nature and evolving tactics, it is linked to a notorious cybercrime syndicate operating under multiple aliases over the past eight years.
The Colonial Pipeline cyberattack in May 2021 marked one of the most significant ransomware attacks in U.S. history. Targeting the country's largest fuel pipeline, this attack disrupted gas supplies across the East Coast, leading to widespread panic buying and a $4.4 million ransom payment.
Egregor ransomware emerged as one of the most notorious cyber threats in recent years, targeting organizations across various industries with devastating consequences. Known for its double-extortion tactics, Egregor disrupted operations, demanded exorbitant ransoms, and highlighted the growing sophistication of ransomware threats.
The Halliburton ransomware attack in 2024 hit the oil and gas giant, leading to $35 million in damages. Targeting sensitive data and operations, the attack temporarily paralyzed systems crucial to production and logistics. It showcased the importance of fortifying industrial cybersecurity to prevent such massive disruptions.
Indigo Ransomware is a malicious strain of ransomware designed to encrypt victim systems and demand payment for decryption keys. Its primary goal is financial extortion, targeting businesses and critical industries to maximize its impact. Known for its sophisticated encryption methods, Indigo has been linked to significant disruptions and financial losses worldwide. The group or entity behind this ransomware remains unconfirmed at present.
The Lehigh Valley Health Network (LVHN) ransomware attack, carried out by the BlackCat/ALPHV ransomware group, was a calculated cyber assault targeting a major healthcare organization. BlackCat is associated with a sophisticated ransomware-as-a-service (RaaS) operation, known for exploiting vulnerabilities to disrupt critical industries. This attack was designed to cripple systems, compromise sensitive patient data, and extract ransom payments, showcasing the complex and growing threats modern ransomware poses.
The Pepsi Bottling Ventures data breach is one of the latest large-scale ransomware attacks to hit a major company in the food and beverage sector. Targeting sensitive employee data and potentially disrupting operations, this attack highlights the urgent need for robust cybersecurity measures across industries.
Phobos ransomware is a malicious software variant designed to extort money from victims by encrypting their critical data and demanding payment in exchange for a decryption key. Phobos primarily targets environments with fewer cybersecurity protections, such as small to medium-sized businesses. It’s known for its ties to ransomware-as-a-service (RaaS) models, allowing less-skilled cybercriminals to deploy it via partnerships with experienced developers.
The Royal Mail ransomware attack was a disruptive cyber assault that targeted the UK’s postal and courier services in early 2023. This high-profile incident affected business operations nationwide, causing significant delays in mail and parcel processing. The attack spotlighted the growing threat of ransomware to critical infrastructure and highlighted the need for robust cybersecurity measures.
The Steamship Authority ransomware attack was a serious cyber incident targeting the Woods Hole, Martha’s Vineyard, and Nantucket Steamship Authority in June 2021. This attack disrupted ferry operations, delaying travel for passengers and freight, and showcased the vulnerabilities of critical transportation infrastructure to ransomware threats.
Surtr ransomware is a destructive strain of malware designed to encrypt files and demand ransom payments from victims in exchange for decryption keys. Thought to primarily target corporations and government organizations, Surtr is known for its rapid encryption capabilities and disruptive tactics. This ransomware operates with the clear purpose of causing significant operational strain on its victims while leveraging the pressure to extract payments.
The Synnovis ransomware attack brought healthcare services in parts of the UK to a standstill by encrypting critical systems. Designed to disrupt operations and extract financial compensation, the ransomware also exposed vulnerabilities in healthcare IT systems. Though the specific ransomware strain used remains unclear, its purpose was clear—financial gain at the expense of healthcare delivery.
The Transnet ransomware attack was a major cyber disruption that primarily targeted South Africa’s Transnet, a state-owned logistics company. This attack, which occurred in 2021, caused widespread operational disruptions across critical sectors like shipping and logistics. It highlighted the growing threat of cybercrime on national infrastructure and emphasized the urgent need for improved cybersecurity defenses.
The Western Digital My Cloud ransomware attack exploited vulnerabilities in Western Digital’s cloud storage system, My Cloud, to disrupt access to stored data. The ransomware primarily aimed to encrypt user data and demand payment for decryption. This attack targeted Western Digital’s global user base, significantly impairing both individual and enterprise operations dependent on cloud access.
The Yum Brands ransomware attack marked a significant cybersecurity incident, targeting the operations of some of the world’s most recognizable fast-food chains, including KFC, Pizza Hut, and Taco Bell. This breach exposed sensitive employee data and disrupted operations, shedding light on the growing threat of ransomware in the food service industry. Here’s everything you need to know about the attack, its impact, and the steps organizations can take to defend against such threats.
The Zoll Medical data breach was a severe ransomware attack that targeted Zoll Medical Corporation, a leading manufacturer of medical devices. The attackers aimed to access and encrypt sensitive patient and business data, making it inaccessible unless a ransom was paid. This ransomware attack mainly resulted in a significant data breach and raised critical concerns about cybersecurity vulnerabilities within the healthcare industry.