Virus Database

Tim.1600 Family

Description Tim.1600 Family

These are memory resident parasitic viruses. They hook INT 9, 21h and write themselves to the end of .COM and .EXE files that are executed or opened. They overwrite the first 16 bytes of .COM files with Jmp-Virus routine. At the end of infected file there is the string "EDCL".
Tim.1600.a
This is very dangerous virus. It does not infect the BACKUP.COM file. It also hooks INT 13h, and depending on the number of the keys that are pressed, disables a writing to the disk (INT 13h, AH=3). It contains the enciphered texts:
Hi to Eastern Digital. Greetings to Mister L.Megafuck to Mihai Sirbu -- MicroTimSoft.
COMEXEBACKUP.COM

Tim.1600.b
This virus is not a dangerous one, it just displays the message:
+-----------------------------------------------+
¦ ¦
¦ MegaFuck from Eastern Digital ¦
¦ ¦
+-----------------------------------------------+

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Macro.Word97. Appder, Cap, Concept, Czech, Muck, W

Description Macro.Word97. Appder, Cap, Concept, Czech, Muck, W

These viruses were converted from their MS Word 6/7 prototypes, and as a result they have the same set of macros, functions, features and effects. See "Macro Word viruses" for more details.
Macro.Word97.Agent
This Word97 virus was converted from its Word prototype.
Macro.Word97.Appder
This Word97 virus was converted from its Word prototype.
Macro.Word97.Atom
This Word97 virus was converted from its Word prototype.
Macro.Word97.Blash
This Word97 virus was converted from its Word prototype.
Macro.Word97.Cap
This Word97 virus was converted from its Word prototype.
Macro.Word97.Concept
This Word97 virus was converted from its Word prototype.
Macro.Word97.Czech
This Word97 virus was converted from its Word prototype.
Macro.Word97.KillDll
This Word97 virus was converted from its Word prototype.
Macro.Word97.Monkey
This Word97 virus was converted from its Word prototype.
Macro.Word97.Muck
This Word97 virus was converted from its Word prototype.
Macro.Word97.Ramses
This Word97 virus was converted from its Word prototype.
Macro.Word97.Timer
This Word97 virus was converted from its Word prototype.
Macro.Word97.Wazzu
This Word97 virus was converted from its Word prototype.

Macro.Word97.Afeto

Description Macro.Word97.Afeto

This is an Internet worm that spreads through e-mail by using Microsoft Outlook. This worm is Word macro-program written in VBA (the macro-language for Microsoft Office).
When an infected document is opened, the worm macro gains contorl, scans all local drives and looks for a JPG-file less than 50,000 bytes in size. The first found file is then inserted in an active document (current infected document). The worm then creates new messages and sends them. New messages are created for the first eight messages in the MS Outlook "Sent items" folder. The messages are created according to the following involved rules:
as an address in the field "To:" the worm sets the address from a message in the "Sent items" folder
as a subject and body message, it sets the subject and body from next message in the "Sent items" folder
an active document with the worm body is attached to the message
For example, the "Sent Items" folder contains the following messages:
Message 1
To: name1@domen1.com
Subject: Hello!
Text: Do you remember me?
Message 2
To: address2@host2.com
Subject: Good bye.
Text: Today I'm leavingall
Message 3
To: nick3@server3.com
Subject: News.
Text: Great news. ...
Outgoing messages (in folder "Outbox") with a worm will appear in the following way:
Message 1
To: name1@domen1.com
Subject: Good bye.
Text: Today I'm leaving...
Message 2
To: address2@host2.com
Subject: News.
Text: Great news.
Message 3
To: nick3@server3.com e.t.c.
...
Attach: Infected document

An infected document contains a JPEG file that has been selected by the worm as well as a worm macro-program.
In this way, the worm sends an infected message to the first eight recipients, whose addresses have been found in the folder "Sent items". But for all this, in many instances, the worm breaks confidential correspondence.

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