Twin directories of virus:

[DIR]  ftp://ftp.zoology.ubc.ca/zoology/virus/
[DIR]  ftp://ftp.zoology.ubc.ca/virus/
[DIR]  ftp://ftp.pepperdine.edu/pub/virus/
[DIR]  ftp://tsg_advert.iff/zoology/virus/
[DIR]  ftp://tsg_advert.iff/virus/
[DIR]  ftp://ftp.saintjoe.edu/pub/software/virus/
[DIR]  ftp://ftp.ema.fr/pub/pc/windows/virus/
[DIR]  ftp://aeneas.mit.edu/pub/virus/
[DIR]  ftp://ftp.42.org/pub/msdos/virus/
[DIR]  ftp://ftp.42.org/pub/security/virus/
[DIR]  ftp://ftp.cac.psu.edu/pub/access/cd/mac/virus/
[DIR]  ftp://ftp.cac.psu.edu/pub/courses/la483/virus/
[DIR]  ftp://ftp.cac.psu.edu/pub/dos/virus/
[DIR]  ftp://ftp.cac.psu.edu/pub/mac/virus/
[DIR]  ftp://ftp.denet.dk/mirrors/ftp.simtel.net/pub/simtelnet/win3/virus/
[DIR]  ftp://ftp.denet.dk/mirrors/ftp.simtel.net/pub/simtelnet/winnt/virus/
[DIR]  ftp://ftp.denet.dk/mirrors/ftp.simtel.net/pub/simtelnet/winxp/virus/
[DIR]  ftp://ftp.denet.dk/mirrors/ftp.simtel.net/pub/simtelnet/handheld/handheld/virus/
[DIR]  ftp://ftp.denet.dk/mirrors/ftp.simtel.net/pub/simtelnet/msdos/virus/
[DIR]  ftp://ftp.sektornet.dk/mirrors/ftp.simtel.net/pub/simtelnet/win3/virus/
[DIR]  ftp://ftp.sektornet.dk/mirrors/ftp.simtel.net/pub/simtelnet/winnt/virus/
[DIR]  ftp://ftp.sektornet.dk/mirrors/ftp.simtel.net/pub/simtelnet/winxp/virus/
[DIR]  ftp://ftp.sektornet.dk/mirrors/ftp.simtel.net/pub/simtelnet/msdos/virus/
[DIR]  ftp://ftp.sektornet.dk/mirrors/ftp.simtel.net/pub/simtelnet/handheld/handheld/virus/
[DIR]  ftp://ftp.wustl.edu/pub/aminet/util/virus/
[DIR]  ftp://ftp.darenet.dk/mirrors/ftp.simtel.net/pub/simtelnet/handheld/handheld/virus/
[DIR]  ftp://ftp.darenet.dk/mirrors/ftp.simtel.net/pub/simtelnet/msdos/virus/
[DIR]  ftp://ftp.darenet.dk/mirrors/ftp.simtel.net/pub/simtelnet/win3/virus/
[DIR]  ftp://ftp.darenet.dk/mirrors/ftp.simtel.net/pub/simtelnet/winnt/virus/
[DIR]  ftp://ftp.darenet.dk/mirrors/ftp.simtel.net/pub/simtelnet/winxp/virus/
[DIR]  ftp://ftp.auburn.edu/pub/virus/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/os2/util/virus/
[DIR]  ftp://ftp.cs.nthu.edu.tw/pub/NTHU/library/virus/
[DIR]  ftp://ftp.bcc.ac.uk/pub/ibmpc/virus/
[DIR]  ftp://ftp.wh8.tu-dresden.de/pub/cert.dfn/csir/ciac/secdocs/virus/
[DIR]  ftp://ftp.uv.es/pub/windows/win95/virus/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/Simtel.Net/winxp/virus/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/Simtel.Net/win95/virus/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/Simtel.Net/winnt/virus/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/Simtel.Net/msdos/virus/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/Simtel.Net/win2k3/virus/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/Simtel.Net/win3/virus/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/Simtel.Net/cross/virus/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/Simtel.Net/handheld/handheld/virus/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/Simtel.Net/mobile/virus/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/Simtel.Net/macppc/virus/
[DIR]  ftp://gnjilux.cc.fer.hr/pub/msdos/virus/
[DIR]  ftp://gnjilux.cc.fer.hr/pub/c64/demos/v/virus/
[DIR]  ftp://ftp.anu.edu.au/mnt/disk2/pc/simtelnet/win95/virus/
[DIR]  ftp://ftp.anu.edu.au/mnt/disk2/pc/simtelnet/winnt/virus/