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Kaspersky Lab published its report about virus activity in e-mail traffic in May. Good news is the number of virus e-mail attachments has decreased significantly in May. Some old worms are back, like Netsky, but they could not do much harm. Trojan horses that were popular in January through April, like Trojan-Downloaders Agent.ica, Agent.hsl, and Diehard, have vanished into the thin air.
The worm named Zhelatin, also known as Storm, have not shown up in Kaspersky's reports since February. Most virus writers seem to have abandoned their efforts to send out infected spam e-mails, and have limited to sending spam with hyperlinks to infected Web sites. This also proves that antivirus software works much better now and most internet security software provides reliable SMTP, POP3 and other e-mail filters.
On the other hand, spam e-mails are still a problem. While it has become more difficult to send a virus, it is still easy to cheat users, and phishing attacks are becoming more and more frequent. Confidential data protection appears to be the primary field for next internet security software improvement.
According to Kaspersky Lab, the most frequent Trojans in May were the following:
- Win32.NetSky.q - 23,12%
- Win32.NetSky.y - 9,70%
- Win32.Scano.gen - 9,63%
- Win32.Nyxem.e - 6,75%
- Win32.NetSky.d - 6,27%
- Win32.NetSky.x - 4,44%
- Win32.NetSky.aa - 3,74%
- Win32.NetSky.b - 3,26%
- Win32.Bagle.gt - 2,75%
- Win32.Mytob.u - 2,60%
- Win32.Mytob.c - 2,40%
- Win32.Scano.bn - 2,09%
- Win32.NetSky.r - 1,98%
- Win32.NetSky.t - 1,94%
- Win32.Mytob.bi - 1,65%
- Win32.Bagle.gen - 1,39%
- Win32.Mydoom.l - 1,19%
- Win32.Mytob.t - 1,08%
- Win32.NetSky.c - 0,97%
- Win32.Mytob.cg - 0,90%
- Other malware - 12,15%
Kaspersky Lab's report in May also contains the list of countries where viruses and other malware come from. 21.72% originated from the United States, 13.18% came from Poland, and South Korea ranks the third pace with 7.88%. |
