Bropia.J is a minor variant of Bropia.G worm. Like the previous variants, it uses MSN messenger for spreading. It also drops a variant of Rbot on the infected system.
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When run, the worm checks for files
win32s.exe winis.exe svchosts.exe iexplore.exe
This check is made to prevent the worm for installing it again on infected system.If the files are not found, it drops file "exe.exe" and executes it. This file is a variant of Rbot. The bot can be used as a backdoor, collecting system information, logging keystrokes, relaying spam and for various other purposes.Brobia.J also drops a file "pic.jpg" and opens it. On default installation of Windows, the program associated with jpg-extension is usually Internet Explorer. The picture presents a woman in light clothing.
The worm attempts to send one of the following messages to MSN Messenger contacts:
:-O paris hilton got hacked!! :D Huge Turd hahaah! :P nice! :P ownage! :D
Where <URL to worm> is a http-link to worm's file. Possible file names in the URLs are
LOOK! :-O paris hilton got hacked!! :D Huge Turd hahaah! :P nice! :P ownage! :D
The links are static addresses. At the time of this writing, the files has been removed from the servers.