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

P2Pworm.CY is a virus that spreads to other computers by copying its code to other files or programs.

P2Pworm.CY is designed to affect one or more specific companies.

It captures certain information entered or saved by the user, with the corresponding threat to privacy: passwords saved by certain Windows services; email addresses; user's browsing habits.

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

• It uses techniques included in its code to hide itself while it is active.

P2Pworm.CY 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.
• 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.
• Instant messaging: it sends links pointing to a copy of itself to all users included in the infected user's contacts list.