Kaspersky Lab has reported that the Trojan.Win33.Dialer.qn has been replaced at the top of the Online Scanner chart by yet another Trojan dialer. The Trojan.Win32.Dialer.yz now tops the chart.

The Trojan.Win32.Dialer.yz was first detected on 11th December 2007 and has spread widely and actively. According to the Interactive Media and Retail Group (IMRG), UK online sales in the run up to Christmas are expected to have reached GBP15bn, so it is perhaps no surprise that malicious programs designed to steal data featured heavily in December. Two variants of the Perflogger keylogging program re-entered the rankings were among the 20 most prevalent malware, with a new variant, Perflogger.cb joining them in twentieth place. Add the Trojan-Spy program TrojanSpy.Win32.Ardamax.n (fourteenth place) into the mix and it gives four programs in the Top Twenty that log keystrokes.

Whilst the veteran email worm Email-Worm.Win32.NetSky.q topped the Virus Top Twenty in December and accounted for 20 per cent of mail traffic, it was the appearance of Trojans including Trojan-Downloader.Win32.Diehard.dc and its variants that was of significance. The .dc modification of this program that (similar to the declining Warezov family of worms) enables spam to be sent from infected computers first appeared on 21st December and during a number of days accounted for more than 80 per cent of all malicious email traffic.

In 2008 it can be expected that Trojan programs and phishing attacks will continue to top the tables more and more frequently. Furthermore, that the number of malicious programs designed to steal online gaming accounts will increase in our statistics. This class of malicious program is evolving steadily and will be one of the main threats in 2008.

The malware list

1. Trojan.Win32.Dialer.yz - 1.37 per cent
   
2. Virus.Win32.Virut.av - 1.33 per cent
   
3. Email-Worm.Win32.Brontok.q - 1.10 per cent
   
4. not-a-virus:PSWTool.Win32.RAS.a - 1.01 per cent
   
5. Trojan.Win32.BHO.abo. - 0.78 per cent
   
6. Virus.Win32.Virut.q - 0.73 per cent
   
7. Trojan.Win32.Inject.mt - 0.68 per cent
   
8. Trojan.Win32.Dialer.qn - 0.66 per cent
   
9. not-a-virus:Monitor.Win32.Perflogger.ca 0.64 per cent
   
10. Email-Worm.Win32.Rays. - 0.63 per cent

Other malicious programs - 91.07 per cent

The virus list

1. Email-Worm.Win32.NetSky.q - 20.03 per cent
   
2. Trojan-Downloader.Win32.Diehard.dc - 11.64 per cent
   
3. Email-Worm.Win32.Warezov.xd - 9.42 per cent
   
4. Trojan-Downloader.Win32.Diehard.db - 7.94 per cent
   
5. Email-Worm.Win32.Scano.gen - 7.42 per cent
   
6. Email-Worm.Win32.Bagle.gt - 7.41 per cent
   
7. Trojan-Downloader.Win32.Diehard.dd - 6.15 per cent
   
8. Email-Worm.Win32.NetSky.aa - 5.81 per cent
   
9. Trojan-Spy.HTML.Fraud.ay - 3.94 per cent
   
10. Email-Worm.Win32.Nyxem.e - 2.55 per cent

Other malicious programs - 17.69 per cent

Related links: (Open in a new window.)
www.kaspersky.co.uk/news?id=207575603
www.kaspersky.co.uk/news?id=207575602

View printable version (opens in new window)
Back