W32/Qizy-A uses VBS/Qizy-A to mail itself to everyone in the Outlook address
book.
W32/Qizy-A attempts to prepend itself to any EXE files in the Windows folder,
the My Documents folder and the MIRC folder. Any RTX (ring-tone) files in the
My Documents folder are replaced with Jingle Bells. Another program,
C:\startup.exe, is dropped and the following registry entry is added so that
the new program is run on boot:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
The dropped program informs the user of the infection and claims they may be
able to disinfect it once they answer ten questions correctly. The answers are:
reindeer, belgium, winter, cheese, companion, acx100, azerty, assembler, tcl,
spike.
On completing the quiz correctly, the user is advised to go to
www.geocities.com/quiz_map for disinfection instructions. The site contains a
map and five photos, allegedly giving directions to a 'package' which will
provide disinfection.