Archive Helmet Icon Archive A Reconstructed © MegaSecurity Database

Snow

Family Author(s) From Date Has Image
Snow (a) server ? China
Snow 1.0 ? China December 2002
Snow 1.3 ? China March 2003
Snow 1.4 ? China March 2003
Snow 1.5 ? China April 2003
Snow 1.6 ? China May 2003
Snow 1.7 ? China May 2003
Snow 1.8 ? China June 2003
Snow 1.9 ? China June 2003
Snow 2.0 ? China July 2003
Snow 2.1 ? China July 2003
Snow 2.2 ? China July 2003
Snow 2.3 ? China July 2003
Snow 2.4 ? China August 2003
Snow 2.5 ? China August 2003
Snow 2.6 ? China September 2003
Snow 2.7 ? China September 2003
Snow 2.8 ? China September 2003
Snow 2.9 ? China October 2003
Snow 3.0 ? China November 2003
Snow 3.1 ? China November 2003
Snow 3.2 ? China December 2003
Snow 3.3 ? China January 2004
Snow 3.4b ? China January 2004
Snow 3.5 ? China February 2004
Snow 3.6 ? China February 2004
Snow 3.7 ? China February 2004
Snow 3.8 ? China April 2004
Snow 3.9 ? China May 2004
Snow 4.0 ? China August 2004
Snow 4.1 ? China October 2004

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.