Welcome to the Virus Encyclopedia of Panda Security.
It spreads and affects other computers.
It does not spread automatically using its own means.
|First detected on:||Dec. 5, 2005|
|Detection updated on:||Dec. 5, 2005|
Stef.A is a worm that spreads by copying itself, without infecting other files.
Stef.A 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.
- 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.