Archive A Reconstructed © MegaSecurity Database

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installer:
size: 626.176 bytes

port: 5800, 5900 TCP

startup:
HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows "run"
data: winsoho.exe 
 

installed files:
c:\WINNT\winsoho.exe                size: 211.968 bytes 
c:\WINNT\system32\omnithread_rt.dll size: 46.080 bytes 
c:\WINNT\system32\sohohooks.dll     size: 12.800 bytes 

Install is visible.
Possible misuse:
winsoho.exe will run invisible on any system if you put the 3 installed files in the same directory

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.