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\Regedit.ocx              Size: 835,076 bytes 
c:\WINDOWS\system32\drwtsn32.bat    Size: 835,076 bytes 
c:\WINDOWS\system32\Explorer.dll    Size: 835,076 bytes 
c:\WINDOWS\system32\Shell32.sys     Size: 835,076 bytes 

added to registry:
HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows "run"
data: C:\WINDOWS\Regedit.ocx 

HKEY_CLASSES_ROOT\dllfile\shell\open\command "(Default)"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "Microsoft Windows Kernel"
data: C:\WINDOWS\System32\drwtsn32.bat 

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon "Shell"
old data: Explorer.exe 
new data: explorer.exe C:\WINDOWS\System32\Explorer.dll 



tested on Windows XP
September 05, 2007

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.