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Iroffer

Family Author(s) From Date Has Image
Iroffer 1.2b09 PMG November 2000
Iroffer 1.2b10 PMG December 2000
Iroffer 1.2b11 PMG January 2001
Iroffer 1.2b12 PMG January 2001
Iroffer 1.2b13 (a) PMG June 2002
Iroffer 1.2b15 PMG April 2003
Iroffer 1.2b16 PMG May 2003
Iroffer 1.2b17 PMG June 2003
Iroffer 1.2b18 PMG July 2003
Iroffer 1.2b19 PMG July 2003
Iroffer 1.2b20 PMG September 2003
Iroffer 1.2b21 PMG October 2003
Iroffer 1.2b22 PMG October 2003
Iroffer 1.2b23 PMG December 2003
Iroffer 1.2b24 PMG December 2003
Iroffer 1.2b26 PMG January 2004
Iroffer 1.2b27 PMG January 2004
Iroffer 1.3b01 PMG January 2004
Iroffer 1.3b02 PMG January 2004
Iroffer 1.3b02 (1303.a) PMG January 2004
Iroffer 1.3b02 (1303.b) PMG January 2004
Iroffer 1.3b02 (1303.c) PMG January 2004
Iroffer 1.3b02 (1303.d) PMG January 2004
Iroffer 1.3b02 (1303.e) PMG January 2004
Iroffer 1.3b02 (1303.f) PMG January 2004
Iroffer 1.3b02 (1303.g) PMG January 2004
Iroffer 1.3b02 (1303.h) PMG January 2004
Iroffer 1.3b02 (1303.i) PMG January 2004
Iroffer 1.3b02 (1303.j) PMG January 2004
Iroffer 1.3b02 (1303.k) PMG January 2004
Iroffer 1.3b02 (1303.l) PMG January 2004
Iroffer 1.2b28 PMG February 2004
Iroffer 1.2b28 (12270) PMG February 2004
Iroffer 1.3b03 (o) PMG February 2004
Iroffer 1.3b04 (1305.b) PMG February 2004
Iroffer 1.3b04 (1305.c) PMG February 2004
Iroffer 1.3b04 (1305.d) PMG February 2004
Iroffer 1.3b04 (1305.e) PMG February 2004
Iroffer 1.3b04 (1305.f) PMG February 2004
Iroffer 1.3b04 (1305.g) PMG February 2004
Iroffer 1.3b04 (1305.h) PMG February 2004
Iroffer 1.3b04 (1305.i) PMG February 2004
Iroffer 1.3b04 (c) PMG February 2004
Iroffer 1.2b29 (a) PMG March 2004
Iroffer 1.3b05 (1306.a) PMG March 2004
Iroffer 1.3b05 (1306.b) PMG March 2004
Iroffer 1.3b05 (1306.c) PMG March 2004
Iroffer 1.3b05 (1306.d) PMG March 2004
Iroffer 1.3b05 (1306.e) PMG March 2004
Iroffer 1.3b05 (1306.f) PMG March 2004
Iroffer 1.3b05 (1306.g) PMG March 2004
Iroffer 1.3b05 (1306.h) PMG March 2004
Iroffer 1.3b05 (a) PMG March 2004
Iroffer 1.3b05 (k) PMG March 2004
Iroffer 1.3b06 (1307) PMG April 2004
Iroffer 1.3b07 PMG April 2004
Iroffer 1.3b07 (1308) PMG April 2004
Iroffer 1.3b08 PMG August 2004
Iroffer 1.3b09 PMG August 2004
Iroffer 1.4b01 PMG September 2004
Iroffer 1.4b02 PMG January 2005
Iroffer 1.4b03 PMG December 2005

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.