There are a lot of antivirus software on the market today. Although details may vary between packages, anti-virus software scans files or your computer’s memory for certain patterns that may indicate an infection. The patterns it looks for are based on the signatures, or definitions, of known viruses.

Virus authors are continually releasing new and updated viruses, so it is important that you have the latest definitions installed on your computer.

What happens if the software detects a virus?

Each package has its own method of response when it detects a virus, and the answer may vary depending on whether the software locates the virus during an automatic or a manual scan. Sometimes the software produces a warning dialog box that a virus has been found and asks if you want to “cleanse” the file (to eliminate the virus). In other cases, the software can try to eliminate the virus without asking first. When selecting an anti-virus package to become familiar with its features so you know what to expect.

How do you get the current virus information?

This process may vary depending on the product you choose, to find out what your anti-virus software requires. Many antivirus include an option to automatically receive updated virus definitions. Due to the new information is added frequently, it’s a good idea to take advantage of this option. Are reluctant to believe chain letters e-mail which claimed that a well-known anti-virus vendor has recently detected the “worst virus in history” that will destroy your computer’s hard drive. These emails are hoaxes. The virus can confirm the information through your anti-virus through suppliers or resources offered by other anti-virus vendors.  While installing anti-virus software is one of the easiest and most effective ways to protect your computer, has its limitations. Because it is based on signatures, anti-virus software can only detect the virus signatures that have been installed on your computer, so it’s important to keep these signatures to date. You will still be susceptible to viruses that circulate before the anti-virus vendors add their signatures in order to continue to take other security precautions as well.

What software should I use?

There are many vendors who produce anti-virus software, and decide which one to choose can be confusing. All anti-virus software performs the same function, so your decision may be driven by the recommendations, in particular, features, price or availability. Installing any anti-virus software, regardless of the package you choose, it increases their level of protection. Be careful, however, e-mails that are intended to include anti-virus software. Some recent viruses arrive as an email supposedly from your Internet service provider’s technical support department, which contains an attachment claiming to be the anti-virus software. However, the attachment is actually a virus, so it could become infected by opening it.

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Saya coba cek melalui fasilitas ConfigServer Mail Queues di server kami dan hasilnya :

Connecting to mx2.mail.plasa.com [222.124.18.72]:25 from
66.128.48.68 ... connected
SMTP<< 421 The evaluation license has expired.
SMTP>> QUIT
LOG: MAIN
SMTP error from remote mail server
after initial connection: host mx2.mail.plasa.com
[222.124.18.72]: 421 The evaluation license has expired.
Connecting to mx1.mail.plasa.com
[222.124.18.71]:25 from 66.128.48.68 ... connected
SMTP<< 421 The evaluation license has expired.
SMTP>> QUIT

Jadi memang sepertinya telkom.net menggunakan software yang sudah expired dan belum/lupa dibayar untuk beberapa smtp channel-nya ? Jangan-jangan nanti terjadi kasus seperti domain telkom.net beberapa tahun lalu ? Ah semoga saja tidak.

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