Iran Released Gauss Maleware Detection Tool

MAHER Center of Iranian National Computer Emergency Response Team releases a tool for Gauss malware detection.Gauss is a complex, nation-state sponsored cyber-espionage toolkit designed to steal sensitive data, with a specific focus on browser passwords, online banking account credentials, cookies, and specific configurations of infected machines.

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Multiple modules of Gauss serve the purpose of collecting information from browsers, which include the history of visited websites and passwords. Detailed data on the infected machine is also sent to the attackers, including specifics of network interfaces, the computer’s drives and BIOS information. The Gauss module is also capable of stealing data from the clients of several Lebanese banks including the Bank of Beirut, EBLF, BlomBank, ByblosBank, FransaBank and Credit Libanais. It also targets users of Citibank and PayPal.

Another key feature of Gauss is the ability to infect USB thumb drives, using the same LNK vulnerability that was previously used in Stuxnet and Flame. At the same time, the process of infecting USB sticks is more intelligent. Gauss is capable of “disinfecting” the drive under certain circumstances, and uses the removable media to store collected information in a hidden file. Another activity of the Trojan is the installation of a special font called Palida Narrow, and the purpose of this action is still unknown.

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