Ресурсы с семплами вредоносных файлов:
VX Vault
Malekal
MalwareBlacklist
Feodo Tracker
ZeuS Tracker
SpyEye Tracker
Palevo Tracker
SafeGroup
Clean MX
Malc0de
Malware Domain List
NovCon Minotaur
Malwageddon
TouchMe blog
R136a1 blog
Skid List
The Wall of Shame
Secubox Labs
MalwareIntelligence
MalwareDisasters
SecurityIntelligence
Tracking Cybercrime
Kafeine's blog
Anti-Reversing
Frank Boldewin's site
rkhunter's blog
aaSSfxxx's blog
Malware Reconstructor
Onthar's blog
Stop escrocs
Krebs on Security
Bleepingcomputer
Contagio
cyb3rsleuth
w4kfu
DeleteMalware
Zero Day Japan
KernelMode
qpt's Labs
SpamLoco
TigzyRK
Dr.Web
Malware Diaries
Xsp!d3r's Web
S!Ri.URZ
Malekal
JS Beautifier
Dionaea
Honeypot project