The mass-mailing routine of Voltan does not send the worm in the email. It sends a link to a website which first displays a message:
Il momento - catartico... per parafrasare un noto comico di ZELIG !!!
[The moment is cathartic... to paraphrase a famous comedian from ZELIG !!!]
then offers a file named 'zelig.scr' for download. 'zelig.scr' is to body of the worm.
When the file is opened it opens a webpage in the default browser with the following content:
Il "CATARTICO" screen saver - stato installato con successo .
The CATHARTIC screen saver has been successfully installed]
It creates a value in the registry as
'HKLM\Control Panel\Screen Saver.Marquee\text'
with the text:
A volte ti sento cos? vicina...A volte ti sento cos? lontana
...Certo che hai proprio un cellulare di m**da!
[Sometimes I can feel you so close...Sometimes I feel you so
distant ...You sure have a sh*tty cell phone!]
To send emails Voltan first locates the Windows Address Book and reads the list of contacts from there. Using its own SMTP engine it sends the following emails to the contacts:
Subject: Il momento e' catartico [The moment is cathartic]
Body: Ricevo e cortesemente inoltro,.... un premio per la genialita
hanno reso mitico un salva schermo scaricalo, "poesie catartiche",
che non sai cosa ti perdi
[I received this and I'm forwarding it,... an award to genius
they made this great a screen-saver download it, "cathartic poems",
you don't know what you're missing]
If the worm can not find the email address of the user of the infected computer it uses a hardcoded address instead.
Voltan uses system DLLs which are not available on some systems. The worm does not work on Windows 95/98/ME and Windows NT4.