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Threat Spotlight: Sodinokibi ransomware attempts to fill GandCrab void

Sodinokibi, also known as Sodin and REvil, is hardly six months old, yet it has quickly become a topic of discussion among cybersecurity professionals because of its apparent connection with the infamous-but-now-defunct GandCrab ransomware. On May 31, the threat actors behind GandCrab formally announced their retirement, detailing their plan to cease selling and advertising GandCrab in a dark … [Read more...]

Protecting Cities from Ransomware Attacks

Over the last 12 months, we have seen a large number of cities in the USA become the victim of sophisticated ransomware attacks, including New York, Washington, Atlanta, Maryland and more. Baltimore, the most recent victim in this wave of ransomware attacks, experienced their second attack in the last 12 months. Thousands of computers in Baltimore’s city government were completely frozen on the … [Read more...]

Social engineering is becoming cyber criminals’ weapon of choice

The cyber security industry has traditionally focused on technological weaknesses, but according to the 2019 Trustwave Global Security Report, the majority of breaches begin with social engineering.    What is social engineering?  Social engineering is a method of psychological manipulation in which a trickster persuades someone to perform certain actions or divulge sensitive … [Read more...]

Radiohead’s ransom response shows novel approach for ransomware victims

Last week, British rock bank Radiohead thwarted an attempted digital ransom, in which unnamed hackers stole roughly 18 hours of unreleased music dating back to the band’s recording of its studio album OK, Computer, revealing some less-than-ok computer security (sorry). Instead of paying a ransom to keep the music secret, Radiohead released the files themselves, giving listeners a chance to … [Read more...]

MegaCortex continues trend of targeted ransomware attacks

MegaCortex is a relatively new ransomware family that continues the 2019 trend of threat actors developing ransomware specifically for targeted attacks on enterprises. While GandCrab apparently shut its doors, several other bespoke, artisanal ransomware families have taken its place, including RobinHood, which shut down the city of Baltimore, Troldesh, and CrySIS/Dharma. Detected by … [Read more...]

A week in security (May 27 – June 2)

Last week on Malwarebytes Labs, we took readers through a deep dive—way down the rabbit hole—into the novel malware called “Hidden Bee.” We also looked at the potential impact of a government agency’s privacy framework, and delivered to readers everything they needed to know about ATM attacks and fraud. Lastly, amidst continuing news about the City of Baltimore suffering a ransomware attack, we … [Read more...]

Ransomware isn’t just a big city problem

This month, one ransomware story has been making a lot of waves: the attack on Baltimore city networks. This attack has been receiving more press than normal, which could be due to the actions taken (or not taken) by the city government, as well as rumors about the ransomware infection mechanism. Regardless, the Baltimore story inspired us to investigate other cities in the United States, … [Read more...]

A week in security (May 13 – 19)

Last week, Malwarebytes Labs reviewed active and unique exploit kits targeting consumers and businesses alike, reported about a flaw in WhatsApp used to target a human rights lawyer, and wrote about an important Microsoft patch that aimed to prevent a “WannaCry level” attack. We also profiled the Dharma ransomware—aka CrySIS—and imparted four lessons from the DDoS attack against the US … [Read more...]

Threat spotlight: CrySIS, aka Dharma ransomware, causing a crisis for businesses

CrySIS, aka Dharma, is a family of ransomware that has been evolving since 2006. We have noticed that this ransomware has become increasingly active lately, increasing by a margin of 148 percent from February until April 2019. The uptick in detections may be due to CrySIS’ effective use of multiple attack vectors. Profile of the CrySIS ransomware CrySIS/Dharma, which Malwarebytes … [Read more...]

Sophisticated threats plague ailing healthcare industry

The healthcare industry is no longer circling the drain, but it’s still in critical condition. While many organizations in healthcare have aimed at or made positive strides toward a more robust cybersecurity and privacy posture, they still have a long way to go. In 2018, healthcare had the highest number of breaches recorded compared to other industries. This is according to … [Read more...]