Banbra.GKL is a Trojan, which although seemingly inoffensive, can actually carry out attacks and intrusions. Banbra.GKL is designed to affect one or more specific companies. It captures certain information entered or saved by the user, with the corresponding threat to privacy:
keystrokes, in order to obtain information for accessing online banking services, passwords and other confidential information. It sends the gathered information to a remote user by any available means: email, FTP, etc. It reduces the security level of the computer:
it changes the security settings of Internet Explorer, decreasing its security level. Banbra.GKL redirects attempts to access web pages of certain banks to spoofed pages, with the aim of logging information entered by the user in these pages. Banbra.GKL uses the following propagation or distribution methods: - Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.
- Via Internet, exploiting remote vulnerabilities: attacking random IP addresses, in which it tries to insert a copy of itself by exploiting one or more vulnerabilities.
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