how an email virus work?
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Virus authors adapted to the changing computing environment by creating the e-mail virus. For example, the Melissa virus in March 1999 was spectacular in its attack. Melissa spread in Microsoft Word documents sent via e-mail, and it worked like this:
Someone created the virus as a Word document and uploaded it to an Internet newsgroup. Anyone who downloaded the document and opened it would trigger the virus. The virus would then send the document (and therefore itself) in an e-mail message to the first 50 people in the person's address book. The e-mail message contained a friendly note that included the person's name, so the recipient would open the document, thinking it was harmless. The virus would then create 50 new messages from the recipient's machine. At that rate, the Melissa virus quickly became the fastest-spreading virus anyone had seen at the time. As mentioned earlier, it forced a number of large companies to shut down their e-mail systems to control the spread.
Someone created the virus as a Word document and uploaded it to an Internet newsgroup. Anyone who downloaded the document and opened it would trigger the virus. The virus would then send the document (and therefore itself) in an e-mail message to the first 50 people in the person's address book. The e-mail message contained a friendly note that included the person's name, so the recipient would open the document, thinking it was harmless. The virus would then create 50 new messages from the recipient's machine. At that rate, the Melissa virus quickly became the fastest-spreading virus anyone had seen at the time. As mentioned earlier, it forced a number of large companies to shut down their e-mail systems to control the spread.
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An email virus is a virus that is sent with or attached to email communications. While many different types of email viruses work in different ways, there also are a variety of methods used to counteract such challenging cyberattacks.
Email viruses run the gamut - from creating pop-ups to crashing systems or stealing personal data. Email viruses also vary in how they are presented. For example, a sender of an email virus may be unknown to a user, or a subject line may be filled with nonsense. In other cases, a hacker may cleverly disguise an email as being from a trusted and known sender.
In terms of solutions, anti-virus advocates try to help the public avoid viruses by reminding users to use caution when opening unsolicited emails. Spam filters and other tools also help cut down on the spread of email viruses. Anti-virus programs and firewalls are also helpful.
Email viruses run the gamut - from creating pop-ups to crashing systems or stealing personal data. Email viruses also vary in how they are presented. For example, a sender of an email virus may be unknown to a user, or a subject line may be filled with nonsense. In other cases, a hacker may cleverly disguise an email as being from a trusted and known sender.
In terms of solutions, anti-virus advocates try to help the public avoid viruses by reminding users to use caution when opening unsolicited emails. Spam filters and other tools also help cut down on the spread of email viruses. Anti-virus programs and firewalls are also helpful.
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