Nomes comuns: Brontok.FZ Nomes técnicos: Alias:     Tipo: WORM Tamanho: 44485 Bytes     DETECÇÕES Número de avistamentos: Data do primeiro avistamento: March 3, 2007 at 00:20 AM Primeiro país em que foi avistado: Último país em que foi avistado:

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Brontok.FZ is a worm that spreads by copying itself, without infecting other files.

It reduces the security level of the computer: it terminates processes belonging to security tools, such as antivirus programs and firewalls, leaving the computer defenseless against attacks from other malware; it changes system permissions, decreasing the security level.

It uses stealth techniques to avoid being detected by the user:

• It terminates processes corresponding to several security tools, such as antivirus programs and firewalls, to prevent detection.
• It deletes the original file from which it was run once it is installed on the computer.

It uses several methods in order to avoid detection by antivirus companies:

• It prevents scanning tools from running, such as Windows Registry Editor, FileMonitor, etc.

Brontok.FZ 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.
• Email: sending emails that include a copy of itself as an attachment. The computer is infected when the attachment is run.

The main objective of Brontok.FZ is to spread and affect other computers.

Mais informações acerca do Brontok.FZ na Enciclopédia