as for the file:
File: Silkroad.rar
Status: MIGHT BE INFECTED/MALWARE (Sandbox emulation took a long time and/or runtime packers were found, this is suspicious. Normally programs aren't packed and don't force the sandbox into lengthy emulation. Do realize no scanner issued any warning, the file can very well be harmless. Caution is advised, however.)
MD5 72413448be2888009e6dbf8fed178090
Packers detected: PE_PATCH
Scanner results
AntiVir Found nothing
ArcaVir Found nothing
Avast Found nothing
AVG Antivirus Found nothing
BitDefender Found nothing
ClamAV Found nothing
Dr.Web Found nothing
F-Prot Antivirus Found nothing
Fortinet Found nothing
Kaspersky Anti-Virus Found nothing
NOD32 Found nothing
Norman Virus Control Found nothing
UNA Found nothing
VirusBuster Found nothing
VBA32 Found nothing
Clean