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:\WINNT\system32\DIAGCFG.EXE   size: 100.352 bytes 
c:\WINNT\system32\MSIESMTP.DLL  size: 18.432 bytes 

port: 6267 TCP

startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices "Diagnostic Configuration"
data: C:\WINNT\system32\DIAGCFG.EXE 

HKEY_CLASSES_ROOT\comfile\shell\open\command "(Default)"
old data: "%1" %* 
new data: C:\WINNT\system32\DIAGCFG.EXE "%1" %* 


HKEY_CLASSES_ROOT\exefile\shell\open\command "(Default)"
old data: "%1" %* 
new data: C:\WINNT\system32\DIAGCFG.EXE "%1" %*

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.