Virus-like program that spreads automatically to other computers by sending itself out by email or by any other means. A program that propagates itself by attacking other machines and copying itself to the affected machine.
Worms have self-replicating code that travels from machine to machine by various means. A worms first objective is merely propagation. Worms can be destructive depending on what payload they have been given. Worms may replace files, but do not insert themselves into files.
This worm sends one of the following messages to buddies in the AIM contact list on the infected machine:
great picture :) <Clickable URL>
OR not a right time to take a picture haa :-) <Clickable URL>
When the buddy clicks this link, it will cause files such as lockbr.exe to be downloaded and executed, which in turn downloads and installs programs such as 'Zango','180 Search Assistant','Windupdates' and its variants, 'Media Access' and 'Media Gateway'.