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

Sdbot.HXO is a worm that spreads by copying itself, without infecting other files.

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

Sdbot.HXO 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.

Sdbot.HXO redirects attempts to access several web pages to a specific IP address.

Sdbot.HXO 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.
• Peer-to-peer (P2P) file sharing programs: it makes copies of itself with enticing names in shared folders belonging to these programs. Other users of this type of networks then voluntarily download and run the infected files.
• IRC: It sends a copy of itself to all users connected to the channel to which the infected user is connected.
• Instant messaging: it sends links pointing to a copy of itself to all users included in the infected user's contacts list.
• Computer networks (shared resources): it creates copies of itself in shared network resources to which it has access.