Troj/SpamToo-U is a spamming Trojan for the Windows platform.
When run Troj/SpamToo-U creates the following files:
<Temp>\Zupastik.exe - detected as Troj/SpamToo-U
<System>\rsvp32_2.dll - detected as Troj/SpamToo-U
<System>\sporder.dll - clean file
<Temp>\wallpapers_030226_rover_brodyaga.jpg - clean image file
Troj/SpamToo-U also attempts to display the file <Temp>\wallpapers_030226_rover_brodyaga.jpg with the default image editor.
Once installed Troj/SpamToo-U registers <System>\rsvp32_2.dll as a (LSP) Layered Service Provider and sets the following registry entries to startup whenever a network stream is initialised:
HKLM\SYSTEM\CurrentControlSet\Services\WinSock2\Parameters\
Protocol_Catalog9\Catalog_Entries\
Troj/SpamToo-U may creates entries under:
HKLM\SOFTWARE\WinSock2\Buibert\
Troj/SpamToo-U then attempts to send spam messages via instant messaging client applications including Yahoo! Messenger and also via webmail hosting sites including webmail.tiscali.co.uk, ComcastWebMail, Google Mail and Care2WebMail.