Details of Virus 5540.A

5540.A is a virus that spreads to other computers by copying its code to other files or programs.

5540.A does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.

5540.A uses the following infection strategies:

• Prepending: it enters its code at the beginning of the file it infects. By doing this, it ensures that the virus is run every time the infected file is executed, but without interfering the functioning of the file.
• Direct action: it infects a specific number of executable files every time the virus activates, without going memory resident.