Windows 2003/XP/2000/NT/ME/98/95

Gaobot.NGH is a worm that spreads by copying itself, without infecting other files.

Gaobot.NGH prevents access from programs to websites of several companies related with security tools (antivirus programs, firewalls, etc.).

Gaobot.NGH 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.

Gaobot.NGH redirects attempts to access several web pages to a specific IP address.

Gaobot.NGH 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.
• IRC: It sends a copy of itself to all users connected to the channel to which the infected user is connected.
• Computer networks (mapped drives): it creates copies of itself in mapped drives.