Archive Helmet Icon Archive A Reconstructed © MegaSecurity Database

Rejoice 3.0

Released 20 years, 4 months ago. December 2005

Copyright © MegaSecurity

By ?


Informations
From China
Author ?
Family Rejoice
Category Remote Access
Version Rejoice 3.0
Released Date Dec 2005, 20 years, 4 months ago.
Language Delphi
Additional Information
Dropped by server_u.exe (836,644 bytes):
c:\WINDOWS\2006_1.ini         Size: 68 bytes 
c:\WINDOWS\server_u.exe       Size: 684,032 bytes 
c:\WINDOWS\system32\82.dll    Size: 98,304 bytes 

Extracted Server "rejoice_06.exe":
dropped file:
c:\WINDOWS\system32\rejoice.dll
size: 98,304 bytes 

added to registry:
HKEY_CLASSES_ROOT\CLSID\{86F4BDA2-C04B-4662-953A-9A47C1F10C5C}\InprocServer32 "(Default)"
data: C:\WINDOWS\System32\rejoice.dll 

tested on Windows XP
December 18, 2005

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.