Everything You Need to Know About Evolving Threat of Ransomware

The cybersecurity world is constantly evolving to new forms of threats and vulnerabilities. But ransomware proves to be a different animal—most destructive, persistent, notoriously challenging to prevent, and is showing no signs of slowing down. Falling victim to a ransomware attack can cause...

Everything You Need to Know About Evolving Threat of Ransomware

The cybersecurity world is constantly evolving to new forms of threats and vulnerabilities. But ransomware proves to be a different animal—most destructive, persistent, notoriously challenging to prevent, and is showing no signs of slowing down. Falling victim to a ransomware attack can cause...

Vancouver Metro Disrupted by Egregor Ransomware

The threat actors behind the Egregor ransomware are showing a prolificacy in their early months of activity. On the heels of targeting struggling U.S. retailer Kmart, the Egregor gang also disrupted the Vancouver metro system with a ransomware attack. Translink, the Canadian city’s public...

Sophisticated new Android malware marks the latest evolution of mobile ransomware

Attackers are persistent and motivated to continuously evolve – and no platform is immune. That is why Microsoft has been working to extend its industry-leading endpoint protection capabilities beyond Windows. The addition of mobile threat defense into these capabilities means that Microsoft...

Universal Health Services Ransomware Attack Impacts Hospitals Nationwide

A ransomware attack has shut down Universal Health Services, a Fortune-500 owner of a nationwide network of hospitals. The attack occurred in the wee hours of the morning on Monday, according to reports coming in from employees on Reddit and other platforms. On Reddit, a discussion with hundreds ...

Mac ThiefQuest malware may not be ransomware after all

Editor's note: The original name for the malware, EvilQuest, has been changed due to a legitimate game of the same name from 2012. The new name, ThiefQuest, is also more fitting for our updated understanding of the malware. The ThiefQuest malware, which was discovered last week, may not actually ...

PonyFinal Ransomware Targets Enterprise Servers Then Bides Its Time

A Java-based ransomware known as PonyFinal has galloped onto the scene, targeting enterprise systems management servers as an initial infection vector. According to a warning on Twitter from Microsoft Security Intelligence on Wednesday, PonyFinal is not an automated threat, but rather has humans...

Threat Spotlight: MedusaLocker

By Edmund Brumaghin, with contributions from Amit Raut. Overview MedusaLocker is a ransomware family that has been observed being deployed since its discovery in 2019. Since its introduction to the threat landscape, there have been several variants observed. However, most of the functionality...

Threat Analysis Unit (TAU) Threat Intelligence Notification: CoronaVirus Ransomware

"CoronaVirus" Ransomware has been found distributed via a phishing website. The malicious website will distribute a trojan downloader which then leads to downloading additional malicious payloads: the Kpot InfoStealer and Coronavirus Ransomware. "CoronaVirus" Ransomware will perform the deletion ...

Researchers Warn of Novel PXJ Ransomware Strain

Researchers have discovered a new strain of ransomware, dubbed “PXJ,” which emerged in the wild in early 2020. While PXJ performs functions similar to other ransomware variants, it does not appear to share the same underlying code with most known ransomware families, researchers said. They first...

Researchers Warn of Novel PXJ Ransomware Strain

Researchers have discovered a new strain of ransomware, dubbed “PXJ,” which emerged in the wild in early 2020. While PXJ performs functions similar to other ransomware variants, it does not appear to share the same underlying code with most known ransomware families, researchers said. They first...

Threat Analysis Unit (TAU) Threat Intelligence Notification: Snatch Ransomware

During the end of the year 2019, a ransomware named ‘Snatch” was discovered. Snatch ransomware will force Windows to reboot in Safe Mode where most of the software and system drivers will not be running in order to perform the file encryption process. Similar to the other variants of ransomware, ...

Threat Analysis Unit (TAU) Threat Intelligence Notification: SatanCryptor Ransomware

In early January 2020, a new ransomware named ‘SatanCryptor’ was discovered. After it performs file encryption, it will drop a ransom note named “ SATAN CRYPTOR .hta” and append ‘.satan’ as a file extension to the encrypted files. In addition, SatanCryptor will delete itself after the execution t...

Threat Analysis Unit (TAU) Threat Intelligence Notification: DeathRansom Ransomware

During mid-November, a new ransomware named ‘DeathRansom” was found being distributed. Similar to the other variants of ransomware, it will perform the deletion of volume shadow copies to ensure all the data cannot be restored easily. After the DeathRansom performs file encryption, it will drop...

New Zeppelin Ransomware Targeting Tech and Health Companies

A new variant of Vega ransomware family, dubbed Zeppelin, has recently been spotted in the wild targeting technology and healthcare companies across Europe, the United States, and Canada. However, if you reside in Russia or some other ex-USSR countries like Ukraine, Belorussia, and Kazakhstan,...

Threat Analysis Unit (TAU) Threat Intelligence Notification: Estemani Ransomware

Estemani Ransomware’s behavior is similar to other variants of ransomware. It will perform task kill on processes to ensure the encryption of files such as database program SQL server, perform the deletion of volume shadow copies, and disable Windows automatic startup repair to ensure all the dat...

Major Groupon, TicketMaster Fraud Scheme Exposed By Insecure Database

UPDATE After discovering a cache of 17 million emails exposed on an unsecured database, researchers with vpnMentor began to hunt for its owner — but to their surprise, they found that the database belonged not to a company, but to a sophisticated criminal network. Cybercriminals had been both...

CB TAU Threat Intelligence Notification – MegaCortex Ransomware

MegaCortex is a unique form of ransomware that was initially discovered earlier this year. It proved to be a very complex form of malware that required additional steps of operation that were only recoverable during incident responses. Since then, MegaCortex has been updated to become more generi...

CB TAU Threat Intelligence Notification: Maze Ransomware

Maze Ransomware, also known as ChaCha Ransomware, has been discovered being distributed by the Fallout exploit kit. After the encryption, it will create a ransom note named ‘DECRYPT-FILES.html’ in each of the encrypted file’s folders. The bottom of the ransom note is a base64 string which contain...

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...