Archive A Reconstructed © MegaSecurity Database

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Server1:
size: 327.680 bytes (UPX)

port: 5110, 5112, 51100 TCP

startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y} "StubPath"
data: C:\WINDOWS\system\sservice.exe 

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run "DirectX For Microsoft® Windows"
data: C:\WINDOWS\system32\fservice.exe 

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y} "StubPath"
data: C:\WINDOWS\system\sservice.exe
 
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run "DirectX For Microsoft® Windows"
data: C:\WINDOWS\system32\fservice.exe 
		
dropped files:
c:\WINDOWS\winlogon.exe           size: 327.680 bytes 
c:\WINDOWS\system\sservice.exe    size: 327.680 bytes 
c:\WINDOWS\system32\fservice.exe  size: 327.680 bytes 
c:\WINDOWS\system32\wininv.dll    size: 24.576 bytes 
c:\WINDOWS\system32\winkey.dll    size: 24.576 bytes 

deleted file:
c:\WINDOWS\system32\Restore\MachineGuid.txt

Server2:
down_server.exe: 
size: 2.784 bytes (UPX)

tested on Windows XP

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.