Virus Database

Trojan.PSW.Hooker

Description Trojan.PSW.Hooker

This program belongs to the family of password-stealing Trojans.
When activated, the Trojan installs itself to the system. While installing, the Trojan copies itself to the Windows or Windows system directory and registers itself in the system registry auto-run section. For example:
Trojan full name: WINDOWSSYSTEMkernel32.exe
Registry key:
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun
kernel32 = kernel32.exe
The installed Trojan file name, the target directory and registry key are optional. They are stored in encrypted form in the Trojan file at the file end. A hacker may configure them before sending the Trojan to a victim's machine, or before putting it on a Web site.
The Trojan then registers itself in the system as a hidden application (service), and the Trojan's process at this time is not visible in the task list. The Trojan also can drop an additional DLL library to intercept keyboard entries and to store these entries.
Being active in the system, the Trojan periodically sends e-mail messages to its host (hacker's e-mail address, which is also optional). The message contains the following: computer information (owner, Internet address, etc.), RAS information, cached passwords (login name and password) as well as text strings that are entered by a user during a Windows session.

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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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