Ywinz
Ywinz is a worm that spreads by copying itself, without infecting other files.
Ywinz prevents access from programs to websites of several companies related with security tools (antivirus programs, firewalls, etc.).
Ywinz 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.
Ywinz redirects attempts to access several web pages to a specific IP address.
Ywinz 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.
- File infection: it infects different types of files, which are then distributed through any of the usual means: floppy disks, email messages with attachments, Internet download, files transferred via FTP, IRC channels, P2P file sharing networks, etc.
