XorBot, a rapidly growing botnet family that emerged in November 2023, has proven to be a significant security threat in 2024. Initially discovered by NSFOCUS, XorBot primarily targets Internet of Things (IoT) devices such as surveillance cameras, routers, and other networked hardware. Brands like TP-Link, D-Link, and Intelbras have been notably affected, with attackers exploiting vulnerabilities to take control of a large number of devices. As the botnet’s size increases, its operators have begun offering DDoS attack rental services, capitalizing on their ability to control a vast network of compromised devices.
The botnet spreads by exploiting known vulnerabilities in IoT devices, using a variety of attack methods to infiltrate systems. Once a device is compromised, XorBot deploys a malicious Trojan, which is equipped with over a dozen different exploit techniques. These include vulnerabilities in popular device models from companies such as Netgear, Huawei, and TP-Link. The Trojan is placed in the /tmp directory of the infected device, where it operates stealthily, avoiding detection and maintaining persistence within the compromised network.
In addition to its ability to spread and compromise devices, XorBot has advanced anti-tracking features that help it evade detection and prolong its activity. The latest version, 1.04, introduces several new capabilities, including over ten flooding attack modes, making it more versatile in launching DDoS attacks. The operators behind XorBot have made significant improvements to the botnet’s efficiency and effectiveness, continuously updating the software with new exploits and attack techniques. The botnet’s operators are also keen on maintaining a low profile, adopting passive online strategies and using sophisticated methods to avoid cybersecurity defenses.
As the threat from XorBot continues to grow, organizations and individuals must remain vigilant in protecting their IoT devices. Ensuring that devices are updated with the latest patches to address known vulnerabilities is crucial in preventing exploitation. Moreover, employing intrusion detection systems and network security measures can help identify and block malicious activity associated with the botnet. Given its evolving nature and the increasing scale of its operations, XorBot serves as a stark reminder of the risks posed by IoT devices and the importance of securing them against sophisticated threats.
