Archive Helmet Icon Archive A Reconstructed © MegaSecurity Database

Yakoza 3.3

Released 18 years, 3 months ago. January 2008

Copyright © MegaSecurity

By Ali Moazemi


Yakoza 3.3
Informations
From Iran
Author Ali Moazemi
Family Yakoza
Category Information Stealer
Version Yakoza 3.3
Released Date Jan 2008, 18 years, 3 months ago.
Additional Information
Server
Dropped Files:
c:\WINDOWS\config.iss             Size: 4 bytes 
c:\WINDOWS\system\fileme.txt      Size: 166 bytes 
c:\WINDOWS\system\svshoct.exe     Size: 135,523 bytes 
c:\WINDOWS\system32\config.htm    Size: 712 bytes 
c:\WINDOWS\tools\svshost.exe      Size: 135,523 bytes 

Added to Registry:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon "Shell"
Old data: Explorer.exe 
New data: explorer.exe C:\WINDOWS\system\svshoct.exe 


Tested on Windows XP
January 20, 2008

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.