Archive A Reconstructed © MegaSecurity Database

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dropped files:
c:\autoexec.exe                  size: 221.184 bytes 
c:\io.dll                        size: 66 bytes 
c:\WINDOWS\mss01.exe             size: 221.184 bytes 
c:\WINDOWS\sprocks.bmp           size: 66 bytes 
c:\WINDOWS\wrgf.exe              size: 221.184 bytes 
c:\WINDOWS\system32\diskf.dll    size: 66 bytes 
c:\WINDOWS\system32\log boot.exe size: 221.184 bytes 
c:\WINDOWS\system32\msgr.exe     size: 221.184 bytes 
c:\WINDOWS\system32\reginf.ret   size: 66 bytes 

startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "bootlogfile"
data: C:\WINDOWS\System32\log boot.exe
 
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "msmsg"
data: C:\WINDOWS\wrgf.exe
 
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "msmsgr"
data: C:\Documents and Settings\Kobayashi\Desktop\Backdoor.VB.jw.exe
 
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "Norton antivirus scan"
data: C:\WINDOWS\mss01.exe
 
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "office decryptfiles"
data: C:\WINDOWS\System32\msgr.exe
 
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "start bat file"
data: c:\autoexec.exe 

tested on Windows XP
November 10, 2004

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.