Archive A Reconstructed © MegaSecurity Database

• a
• b
• c
• d
• e
• f
• g
• h
• i
• j
• k
• l
• m
• n
• o
• p
• q
• r
• s
• t
• u
• v
• w
• x
• y
• z
• other

Server:
dropped files
c:\WINDOWS\services.exe           Size: 350,764 bytes 
c:\WINDOWS\system\sservice.exe    Size: 350,764 bytes 
c:\WINDOWS\system32\fservice.exe  Size: 350,764 bytes 
c:\WINDOWS\system32\reginv.dll    Size: 36,864 bytes 
c:\WINDOWS\system32\winkey.dll    Size: 13,312 bytes 

port: 5110, 5112, 51100 TCP

added to registry:
HKEY_CURRENT_USER\Software\Microsoft\Windows NT Script Host\Microsoft DxDiag\WinSettings
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore "DisableSR"
old data: 00, 00, 00, 00 
new data: 01, 00, 00, 00 

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon "Shell"
old data: Explorer.exe 
new data: Explorer.exe C:\WINDOWS\system32\fservice.exe 

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\kmixer\



tested on Windows XP
July 08, 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.