Class
Virus
Platform
MSExcel

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: MSExcel

Microsoft Excel (MS Excel) is a popular spreadsheet program and part of the Microsoft Office productivity suite. Excel files have .xls or .xlsx extensions.

Description

Technical Details

This virus infects Excel sheets (XLS files). It contains six macros: Auto_Open, cek_global, infectglobal, inFuckIt, Fuck, Auto_Close.

While loading an infected sheet, Excel executes the auto macros auto_open, and the virus takes control. The virus auto_open macro contains a command, which defines the Fuck macro as a handler of OnSheetActivate routine. As a result the virus hooks the sheet activate routine, and while opening a sheet the virus takes control.

When the auto_open macro takes control it searches for LORD.XLM files in the Excel Startup directory. If the infected macro is an active Workbook and the LORD.XLM file does not exist in the Excel Startup directory when the virus is executed for the first time, the virus creates this file and saves its code to it by using the SaveAs command. When Excel loads its modules the next time it automatically loads all XLS files from the Startup directory. The infected LORD.XLM is loaded as well as other files, and the virus takes control and hooks the sheet activation routine.

The virus contains the comments:

------------------------------------------------
Generated with NEG !!. Please include this text
------------------------------------------------
NEG is Trademark of NoMercy
http://www.focus-asia.com/home/NoMercyVirusTeam/Neg.html
VirusName:  Lord
Author:  Foxz with NEG
Module Name:  Lord
Template: LORD.XLM

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