NetSupport RAT

The education, government, and business services sectors are under attack by threat actors using a remote access trojan known as the NetSupport RAT. This threatening software is delivered through deceptive updates, drive-by downloads, the use of malware loaders like GHOSTPULSE, and various types of phishing campaigns. In the span of just a few weeks, cybersecurity researchers have identified numerous infections linked to the NetSupport RAT.

The NetSupport RAT Started as a Legitimate Tool

Although NetSupport Manager initially served as a legitimate remote administration tool designed for technical support, it has been viciously repurposed by threat actors. They exploit the tool as a foothold for carrying out subsequent attacks. The NetSupport RAT is commonly deployed on a victim's computer through deceptive websites and fraudulent browser updates.

In 2022, cybersecurity researchers discovered a targeted attack campaign involving compromised WordPress sites. These sites were utilized to showcase fake Cloudflare DDoS protection pages, leading to the dissemination of the NetSupport RAT.

How the NetSupport RAT Infect Targeted Devices?

The deployment of counterfeit web browser updates is a strategy commonly linked to the utilization of a JavaScript-based downloader malware called SocGholish (also known as FakeUpdates). This malware variant has also been observed disseminating a loader malware identified as BLISTER.

The JavaScript payload then triggers PowerShell to establish a connection with a remote server, fetching a ZIP archive file containing the NetSupport RAT. Upon installation, this RAT begins to communicate with a Command-and-Control (C2, C&C) server.

Once fully established onto a victim's device, the NetSupport gains the capability to monitor activities, transfer files, manipulate computer configurations, and move laterally to other devices within the network.

RATs (Remote Access Trojans) are Among the Most Harmful Malware Threats

RATs are considered among the most damaging malware threats due to their ability to provide unauthorized access and control over a victim's computer or network. Here are several reasons why RATs pose significant risks:

• Unauthorized Access and Control: RATs allow attackers to gain complete control over a targeted system remotely. This level of access enables them to execute various malicious activities without the user's knowledge or consent.
•  Stealthy Operation: RATs are designed to operate covertly, often evading detection by traditional security measures. Their stealthy nature allows them to remain undetected for extended periods, giving attackers ample time to carry out their malicious objectives.
•  Data Theft and Espionage: RATs can be used to collect sensitive information, such as personal data, login credentials, financial information, and intellectual property. This collected data can be exploited for financial gain, corporate espionage or further cyber attacks.
•  Surveillance and Monitoring: RATs enable real-time surveillance of a victim's activities. Attackers can monitor keystrokes, capture screenshots, access files, and even activate webcams and microphones, leading to a severe invasion of privacy.
•  Persistence: RATs are often designed to maintain persistence on infected systems, ensuring that they continue to operate even after reboots or security software scans. This resilience makes them challenging to remove completely.
•  Propagation and Lateral Movement: Once a system is compromised, RATs can facilitate lateral movement across a network, infecting multiple devices. This capability allows attackers to expand their control and potentially cause widespread damage.
•  Facilitation of Additional Attacks: RATs can serve as a gateway for other types of malware or advanced persistent threats (APTs). Attackers may use the compromised system as a launching point for further attacks, making the initial breach a critical point of vulnerability.
•  Use in Targeted Attacks: RATs are frequently employed in targeted attacks against specific individuals, organizations, or industries. Their customization and adaptability make them valuable tools for cybercriminals with specific objectives.

Overall, the combination of stealth, persistence, and the broad range of capabilities associated with RATs makes them particularly dangerous and a significant concern for cybersecurity professionals and organizations. Preventing, detecting, and mitigating the impact of RAT infections requires robust cybersecurity measures and continuous vigilance.