Address spoofing




Address spoofingOne tool that is commonly used by the distributors of both
viruses and spam is known as address spoofing. By changing the From line in a
Simple Mail Transfer Protocol (SMTP) message, users can often be fooled into
opening a message that they think is from a friend or co-worker, only to find that
the message originated somewhere else entirely. This method has been especially
effective in the distribution of email worms. Because the message appears to come
from a known associate, and often has an intriguing Subject line, the unwitting
recipient opens the message and, if not properly protected, becomes a distributor of
the virus to others.

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