Archive A Reconstructed © MegaSecurity Database

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Constructor:
dropped files:
c:\WINDOWS\Ypager!.exe        Size: 24,400 bytes 
c:\WINDOWS\system\temp.exe    Size: 24,400 bytes 

startup:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "Y!Pager!"
data: C:\WINDOWS\Ypager!.exe 

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "Y!Pager!"
data: C:\WINDOWS\Ypager!.exe 





Server:
dropped file:
c:\WINDOWS\system\Explore.exe
size: 51,571 bytes 

startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon "Shell"
old data: Explorer.exe 
new data: C:\WINDOWS\system\Explore.exe -StartWindows 




tested on Windows XP
August 14, 2006

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 me 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.