Archive A Reconstructed © MegaSecurity Database

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Tested on Windows XP
February 05, 2008

Introduction

Spirit Uploader 4 is a reverse-connection remote administration tool compiled with NASM and designed for small size and low memory usage. It allows the user to remotely manage a computer on which the server file has been executed.
Features

Size

    * ~1400 bytes (Varies with settings)


Base

    * ActiveX startup
    * Install into system directory
    * Injection into explorer.exe process
    * Invisible in the task manager
    * Runs on Windows 98/2000/Me/NT/XP/Vista/Longhorn


Plugin

    * Computer information
    * File manager
    * Process manager
    * Windows manager
    * Service manager
    * Registry manager
    * Screen capture (requires GDIPlus.dll)
    * Camera capture (requires GDIPlus.dll)
    * LZO data compression

This archive is an almost-complete reconstruction of the legendary Mega Security (also known as Kobayashi), a premier 90s-era "Trojan Database" where malware authors once showcased their work. After a decade offline, the site was brought back in August 2024 by its original creator, MasterRat, who authorized the Malware Gallery to host this modernized, searchable version of the collection. While the original site remains available for those seeking a nostalgic, old-school experience, we are proud to continue its legacy here. Full credit and thanks go to MasterRat and the retired Mega Security staff for their years of dedicated work in cataloging these historical samples.