CVE-2021-20021

A threat actor has leaked the source code for the first version of the HelloKitty ransomware on a Russian-speaking cybercrime forum. Cybersecurity researchers 3xp0rt reported that a threat actor that goes online with the moniker ‘kapuchin0’ (and also uses the alias Gookee) has leaked the source code of the HelloKitty ransomware on the XSS forum. kapuchin0 claims […]

Cybersecurity agencies from member countries of the Five Eyes intelligence alliance have released a list of the top 12 vulnerabilities routinely exploited in 2022, plus 30 additional ones also “popular” with attackers. The top 12 “In 2022, malicious cyber actors exploited older software vulnerabilities more frequently than recently disclosed vulnerabilities and targeted unpatched, internet-facing systems. Proof of concept (PoC) code was publicly available for many of the software vulnerabilities or vulnerability chains likely facilitating exploitation … More →

While investigating a data breach suffered by a healthcare organization, FBI accidentally revealed that it believes that the HelloKitty ransomware gang operates out of Ukraine. The investigation conducted by FBI on a recent data breach suffered by an Oregon healthcare organization lead to the accidental revelation that the FBI believes that the HelloKitty ransomware gang […]

The Federal Bureau of Investigation (FBI) has published a flash alert to share details on the tactics, techniques and procedures (TTPs) and indicators of compromise (IOCs) associated with the Hello Kitty ransomware, which is also known as FiveHands.

The US FBI has published a flash alert warning private organizations of the evolution of the HelloKitty ransomware (aka FiveHands). The U.S. Federal Bureau of Investigation (FBI) has sent out a flash alert warning private industry of a new feature of the HelloKitty ransomware gang (aka FiveHands). According to the alert, the ransomware gang is […]

For the latest discoveries in cyber research for the week of 26th April, please download our Threat Intelligence Bulletin. Top Attacks and Breaches The notorious ransomware gang REvil is claiming to have stolen data and schematics from Apple supplier Quanta Computer, and are demanding $50 million to not release the data online. As proof, the […]

Attackers that seem to have “intimate knowledge” of the SonicWall Email Security product have been discovered leveraging three (at the time) zero-day vulnerabilities in the popular enterprise solution. Exploited in conjunction, the flaws allowed the attacker to obtain administrative access and code execution on a SonicWall ES device, then install a backdoor, access files and emails, and move laterally into the victim organization’s network. The SonicWall Email Security zero-day vulnerabilities and the discovered attack The … More →

Security vendor SonicWall has addressed three zero-day vulnerabilities affecting both its on-premises and hosted Email Security products. SonicWall is warning its customers to update their hosted and on-premises email security products to address three zero-day vulnerabilities that are being actively exploited in the wild. The three vulnerabilities addressed by the security vendor are: CVE-2021-20021: Email Security Pre-Authentication Administrative […]

SonicWall’s Email Security product is affected by three vulnerabilities that have been exploited in attacks. It took the vendor roughly two weeks to start releasing patches, but a public warning about active exploitation came only 25 days after it learned about the attacks.