Virus.DOS.Storyteller

Parent class: VirWare

Viruses and worms are malicious programs that self-replicate on computers or via computer networks without the user being aware; each subsequent copy of such malicious programs is also able to self-replicate. Malicious programs which spread via networks or infect remote machines when commanded to do so by the “owner” (e.g. Backdoors) or programs that create multiple copies that are unable to self-replicate are not part of the Viruses and Worms subclass. The main characteristic used to determine whether or not a program is classified as a separate behaviour within the Viruses and Worms subclass is how the program propagates (i.e. how the malicious program spreads copies of itself via local or network resources.) Most known worms are spread as files sent as email attachments, via a link to a web or FTP resource, via a link sent in an ICQ or IRC message, via P2P file sharing networks etc. Some worms spread as network packets; these directly penetrate the computer memory, and the worm code is then activated. Worms use the following techniques to penetrate remote computers and launch copies of themselves: social engineering (for example, an email message suggesting the user opens an attached file), exploiting network configuration errors (such as copying to a fully accessible disk), and exploiting loopholes in operating system and application security. Viruses can be divided in accordance with the method used to infect a computer:

• file viruses
• boot sector viruses
• macro viruses
• script viruses

Any program within this subclass can have additional Trojan functions. It should also be noted that many worms use more than one method in order to spread copies via networks.

Class: Virus

Viruses replicate on the resources of the local machine. Unlike worms, viruses do not use network services to propagate or penetrate other computers. A copy of a virus will reach remote computers only if the infected object is, for some reason unrelated to the virus function, activated on another computer. For example: when infecting accessible disks, a virus penetrates a file located on a network resource a virus copies itself to a removable storage device or infects a file on a removable device a user sends an email with an infected attachment.

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Platform: DOS

No platform description

Description

Technical Details

It is not a dangerous memory resident parasitic encrypted virus. It hooks INT 8, 21h and writes itself to the end of .EXE files that are executed. Depending on its internal counters it displays the text:

Sitting on a grassy,beneath one of
the window of the church,was a little
girl.With her head bent back she was
gazing up at the sky and singing,while
one of her little hands was pointing
to the a tiny cloud that hovered like
a golden feather above her head.So co-
mpletely absorbed was she in watching
the cloud to which her string song or
incantation seemed addressed,that she
did not observe me when I rose and went
towards her.As I slowly approached the
child,I could see by her forehead,which
in the sunshine seemed like a globe of
pearl,and especially by her complexion
that she was uncommonly lovely.Her eyes
--which at one moment seemed blue_gray,
at another violet,were shaded by long
black lashes,curving backword in a most
peculiar way,and these matched in hue
her eyebrows, and the trees that were
tossed about her tender throat and were
quivering in the sunlight.Gradully the
other features,especially the sensitive
full-lipped mouth,grew upon me as I st-
ood silently gazing. Here seemed to me
a more perfect beauty than had ever co-
me to me in my loveliest dreams of bea-
uty.Yet it was not her beauty so much
as the look she gave me that facinsted
me ,melted me........
----------------------------------------
By   :     Theodore Watts-Dunton
----------------------------------------
Sir  .       Press any key

This virus also contains the text:

STORYTELLER

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