A new variant of the remote COMPfun (RAT) trojan has been used in attacks targeting European diplomatic services. This malware was first detected and analyzed by G-Data in 2014, while in 2019 it was discovered by Kaspersky another trojan with a similar one code which can carry out man-in-the-middle (MitM) attacks on encrypted traffic, which was later named Reducer. Although G-Data does not assign COMpfun malware to a specific author malware, Kaspersky associates this trojan with Turla APT, taking into account the victims being targeted by its operators.
The new version of COMpfun malware was discovered by Kaspersky in November 2019 and includes all the features of malware RAT. Once it infects the target system, the trojan begins to collect information, which it then sends to command and control. servers (C2) of. COMpfun malware then collects location information and system data, captures window titles and all the keystrokes on the systems it violates, and even takes screenshots that allow it to steal sensitive information from the victim's computer screen. However, unlike other RATs, COMpfun malware also has the ability to spread to other devices, tracking and infecting any removable devices that are connected to the compromised devices.
The most interesting addition to this news version of COMpfun malware is HTTP status-based communication module, which helps malware operators not be easily detected, avoiding the use of known malicious motion patterns. The malware operators focused on diplomatic services and the selection of a visa-related application, Kaspersky said. Adding that the combination of an approach that adapts to their respective goals, as well as the ability to create and execute their ideas, makes them developers behind COMPfun malware are a major threat.