W97M/Astia is a Word 97 macro virus that activates when an infected
document is opened. At this point it infects the global template and
every document thereafter.
When the Word is closed, the virus creates two infected template files
to the Word's startup directory: "SNrml.src" and "SNrml.dot".
The virus replaces the "Tools/Macros/Visual Basic Editor" and
"Tools/Macros/Macro" menu selections with its own dialog box
containing the following text:
Anda jangan coba-coba mengedit, merubah, ataupun menghapus
Anda hanya bisa merekam makro, menyimpan, menggunakan
serta menghapus makro buatan Anda
Apakah Anda ingin merekam makro..?
If user selects "Yes" from the dialog box, the virus attempts to start
the macro recorder.
Since October 10th, 1998 the virus activates its payload when Word has
been running for 45 minutes. At this point it will create a new
document with a form. This form will contain some graphics as well as
the following texts one at the time:
Mungkin kehadiran TITASIC mengganggu kesibukan Anda, untuk itu
maafkanlah kelancangan Titasic ..
Ingat...!! Radiasi komputer berbahaya bagi Anda! So..
istirahatlah sejenak biar enggak stres, pusing, uring-uringan,
Buat Cewek 'SINGLE' yang merasa dirinya Cakeup & Manis..,
Salam dari Astia..!
Mangga bilih bade didamel deui.!
W97M/Astia.B activates its payload since October 15th, 1998 when Word
has been running for 45 minutes. Otherwise it is the same as
W97M/Astia.C is like W97M/Astia.A but the text that the virus
shows when its payload activates is slightly modified.
W97M/Astia.L uses different file names in the Word's startup
directory, "MAMM.dot" and "MAMM.src", and it contains no payload.
This variant is like W97M/Astia.A but the Titasic macro has been
removed and there is no payload.
W97M/Astia.Y is a modified variant of W97M/Astia.A.
After August, 7th 1998 when the Word has been running for 15 minutes,
the virus activates its payload. The payload changes the title text of
Word to "Boo" and creates a new document with a form that contains the
Me, No longer to stay in your computer!
Beware of the Boomv1.01!
BmH guess who(m) am I
thanks to (UserName)
where "(UserName)" is replaced with the current user name.
The virus also replaces "Tools\Macros\Visual Basic Editor" and
"Tools\Macros\Macro" with a dialog box with the following text:
Are you sure want to create a new macro ?
If the user selects "Yes" button, the virus attempts to start the
[Analysis: Katrin Tocheva and Sami Rautiainen, F-Secure]