Archive A Reconstructed © MegaSecurity Database

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mIRC script which may cause infected computers to participate
in Distributed Denial of Service attacks. 
attacker uploads and executes on a compromised machine a self-extracting program,
packed with the "Packet Builder". 
When executed, this program will extract and run two other programs: mIRC client 
software and a program which will hide the mIRC program window so that it will run unnoticeable. 
Then, attacker downloads the IRC.Mimic script(s) which will control the mIRC client software. 

At this point, the security-compromised machine becomes a DDoS attack server.
The IRC.Mimic script(s) and mIRC client play the role of "Zombie", ready to launch an attack.  
(Symantec)

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.