Archive Helmet Icon Archive A Reconstructed © MegaSecurity Database

FireFly

Family Author(s) From Date Has Image
FireFly 2.2 HackBlan wsdgs China
FireFly 1.0 ? China March 2005
FireFly 1.5 wsdgs China April 2005
FireFly 2.0 wsdgs China April 2005
FireFly 2.1 wsdgs China April 2005
FireFly 2.2 wsdgs China May 2005
FireFly 2.2 HackBase wsdgs China May 2005
FireFly 2.3 wsdgs China September 2005
FireFly 2.3Beta2 wsdgs China November 2005
FireFly 2.3Beta3 wsdgs China December 2005
FireFly 2.4 wsdgs China May 2006
FireFly 2.5 wsdgs China August 2006
FireFly 2.6 wsdgs China October 2006

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.