Ketawa.A is a Trojan that displays a document telling a funny story in Indonesian when it is run. Additionally, it modifies the configuration of the screensaver in such a way that:
- whenever it is activated, the username and password is required in order to log in.
- the waiting time of its activation is reduced.
- the file that is run whenever it is activated is a copy of Ketawa.A. Ketawa.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. |