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Forge Report: First Half Threat Trends of 2024
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Rhysida Ransomware On the Rise & Aims Sights on Healthcare Industry
Trend Micro's 2023 report delves into the activities of the Rhysida ransomware group, particularly its disruption of 16 hospitals in August. The gang, while primarily targeting healthcare, has also been seen impacting a range of industries from education to technology. With a global footprint, Rhysida’s prominent presence in countries like Indonesia and the US is evident. The ransomware’s techniques, including phishing and PowerShell script utilization, have been discussed in detail, with a peculiar note on their strategy of presenting themselves as a "cybersecurity team" in their ransom communications.
Exploring the Latest Tools & Tactics of Cuba Ransomware
BlackBerry's 2023 report delves into the ever-evolving tactics and tools of the Cuba ransomware group, highlighting their continuous threat, especially to Western targets, and their new strategies like exploiting Veeam servers.
Colorado Department of Higher Education Reveals Data Incident Affects Students As Far Back As 2004
The Colorado Department of Higher Education (CDHE) has issued a notice of a network intrusion occurring between June 11th and 19th, 2023, which led to a ransomware attack. The breach potentially impacts a wide array of individuals, including those who attended public educational institutions in Colorado between specific years, stretching as far back as 2004. The compromised data includes full names, social security numbers, student identification numbers, and education records, with affected parties set to receive two years of credit monitoring through Experian once the investigation concludes.
Rhysida Ransomware Caused Outages to 16 Hospitals?
In the aftermath of the ransomware attack on August 3rd, 2023, that impacted Prospect Medical hospitals, it has been confirmed that 16 hospitals across four states were affected. This major incident, attributed to the relatively new Rhysida ransomware group, has led to hospital closures, the rescheduling of patient appointments, and the rerouting of patients to other facilities. Both the FBI and the U.S. Department of Health and Human Services have remained silent on the details of the attack, while an HC3 advisory suggests a potential link between Rhysida and the Vice Society ransomware gang.
eSentire Unveils Operation PhantomControl
In July 2023, eSentire researchers uncovered a malicious campaign dubbed Operation PhantomControl, identified through suspicious PowerShell commands. The attackers utilized the ScreenConnect remote access tool, delivered through compromised websites, including a domain associated with 'Teachflix', a classroom learning and video-sharing site. After gaining access, the attackers deployed various files and scripts, including a notable PowerShell script disguised as an SVG file, to deploy AsyncRAT, harvest user data and credentials, and establish persistence on infected systems.
TargetCompany Ransomware Layers Intrusions with Remcos
The TargetCompany ransomware operators are enhancing their intrusion strategies by employing Fully Undetectable (FUD) packers and the Remcos Remote Access Trojan (RAT), aiming to conduct evasive infections. According to Trend Micro analysts Don Ovid Ladores and Nathaniel Morales, the attackers initially gain access through vulnerable SQL servers. They then execute a PowerShell script to download executable files into the TEMP directory, eventually leading to the successful download and installation of the Remcos RAT. The FUD packer style used resembles that used by BatCloak, involving batch files and PowerShell for Living-Off-The-Land Binaries (LOLBins) execution. Metasploit is also utilized in the attack chain. Trend Micro emphasizes TargetCompany's adoption since February 2022 of a 'cmd x PowerShell' loader technique, likely inspired by OneNote campaigns using PowerLoad. Unlike other malware, the loaders for Remcos and TargetCompany focus on integrating decompression into their binaries, likely altering the payload to evade detection.
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