The cost of cleaning a virus infection at the network server level can be staggering. Infected server files raise the ante on virus infections, rapidly expanding a desktop infection into a network-wide virus outbreak. Although malware infections are relatively infrequent, they can seriously damage your network. Even worse, getting rid of them can take days, resulting in costly downtime and the temporary loss of an essential corporate application.
In essence, three kinds of malware can infect your network through a groupware application: (1) traditional boot-sector viruses hiding in executable programs attached to either e-mail messages or shared documents; (2) macro-viruses activated by opening a shared document file or spreadsheet; or (3) destructive logic bombs.
Peter T. Davis, "GroupSec," Information Security, July 1998
Brett Glass, "Know Your Enemy," PC Magazine, May 8, 2001
"Inside lines," ComputerWorld, July 29, 1991
Friends and Family virus
targeted Trojan horse