The FBI has issued an alert regarding a new wave of HiatusRAT malware attacks targeting vulnerable web cameras and DVRs, particularly devices exposed to the internet. The threat actors behind these attacks are focusing on Chinese-branded devices, such as those manufactured by Hikvision and Xiongmai, that have either not received security patches or have reached their end-of-life support. These devices are particularly vulnerable to exploitation due to outdated firmware and weak default passwords.
The malware campaign, which began in March 2024, targets specific vulnerabilities, including CVE-2017-7921, CVE-2018-9995, CVE-2020-25078, CVE-2021-33044, and CVE-2021-36260, that are common in IoT devices. Using open-source scanning tools like Ingram and Medusa, the attackers scan for these vulnerabilities across devices exposed to the internet, particularly those with certain TCP ports open, such as 23, 26, 554, and 2323. These ports provide attackers with a gateway to compromise the devices, enabling them to take control of the systems.
Once compromised, the HiatusRAT malware turns the affected web cameras and DVRs into SOCKS5 proxies, allowing the attackers to communicate with command-and-control (C2) servers. The attackers’ goal is to deploy additional payloads, establishing a foothold in the network and facilitating further exploitation. The FBI has urged network defenders to isolate vulnerable devices to prevent lateral movement within the network following an attack and recommended reducing the use of these devices where possible.
This campaign follows previous attacks where HiatusRAT malware was used to target more than a hundred businesses and even a U.S. Department of Defense server. The FBI’s warning highlights the growing trend of cybercriminals targeting IoT devices and critical infrastructure as part of larger, coordinated campaigns. With national security concerns in mind, the FBI also noted that HiatusRAT’s focus on information gathering aligns with Chinese strategic interests, underscoring the geopolitical implications of these attacks.
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