Webpage malware in the frame for half of attacks last month


Webpage malware in the frame for half of attacks last month

Antony Savvas

The Iframe worm was the top virus last month, making up 50.8% of malware attacks in December.

Web security firm Sophos has published the top-ten list of viruses as part of its monthly monitoring report.


Mal/Iframe works by injecting malicious code into web pages. Mal/ObfJS, a method by which hackers use obfuscated JavaScript to infect web surfers, was in second place.

The top-ten list of web-based malware threats in December 2007:

1. Mal/Iframe 50.8%

2. Mal/ObfJS 19.2%

3. Troj/DRClick 14.6% new entry

4. Troj/Unif 3.0%

5. Troj/Decdec 2.4%

6. Troj/Fujif 1.6%

7. Troj/Pintadd 0.9% new entry

8. Troj/Zlobar 0.8% re-entry

9. Mal/FunDF 0.6%

10. VBS/Haptime 0.5%

Others 5.6%

The top ten list of countries hosting malware-infected webpages in December 2007:

1. China (including Hong Kong) 40.9%

2. United States 33.9%

3. Russia 6.8%

4. Germany 3.8%

5. Ukraine 2.2%

6. Turkey 1.4%

7. United Kingdom 1.2%

8. Poland 0.8%

9. Netherlands 0.7% (re-entry)

10. Italy 0.6% (re-entry)

Others 7.7%

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