Yes.
Viruses and other harmful "malware" are often hidden in apparently innocuous programs.
You should always be very careful about downloading any programs from websites which you might be unsure about, or of programs obtained by following links in emails.
Always have up-to-date virus protection and other security measures and always run it.
By using virus detection program or by not downloading or opening the attachment.
opening an email attachment downloading stuff from the internet
Yes, it can. I know I got a virus from opening junk email :(
Yes, The anti-virus program can scan any file without the need to open it.
a c program for creat a virus
An email attachment could possibly be infected with a virus, malware, trojan, etc. Don't open an attachment from an unknown source. If you must, scan with an anti-virus program before opening the attachment.
this are sunday virus, cascade virus, professors virus.
you can get a virus trough opening the email but you most likely going to get through the link
A Trojan Horse virus program poses as some other program.
virus spreader
Opening attachments from an unknown source can result in your PC being infected with viruses that will crash it or send out the virus to everyone in your address book. Better to never open attachments from sources you don't know, a good anti-virus program like NORTON is also a plus to have installed on your PC. a virus can result in lost documents.
A Companion virus