Archive A Reconstructed © MegaSecurity Database

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Server:
c:\WINDOWS\Institution.exe 

size: 3.584 bytes

port: 5152 TCP

startup:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run "Institution.exe"

Institution 1.1 by Aphex of EES

This 3.5KB (2KB compressed) uploader/downloader is the smallest auto-installing trojan that
I know of. You can upload files or download urls. This makes a great backup trojan. Just
bind it to your favorite full size trojan and you won't even know it's there until you
need it. To create a new server open the client and click the "E" at the top right corner.
[email protected]

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.