win32s.exe winis.exe svchosts.exe iexplore.exeThis 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.
LOOK! <URL to worm> :-O paris hilton got hacked!! <URL to worm> :D Huge Turd hahaah! <URL to worm> :P nice! <URL to worm> :P ownage! <URL to worm> :DWhere <URL to worm> is a http-link to worm's file. Possible file names in the URLs are
scary.pif paris-hilton.pif massive-turd.pif sexy-pitch.pif w00t!.pif FUNNY-SHIT!.pifThe links are static addresses. At the time of this writing, the files has been removed from the servers.
Technical Details: Jarkko Turkulainen, Feb 22rd, 2005; F-Secure Corporation