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Security Report Names Zafi-D as Year's Worst Malware
Sophos has revealed the top ten malware threats of 2005, in a new in-depth report into the year's most pressing security issues. In a year that has seen the number of new threats rise by a staggering 48 percent, the lingering W32/Zafi-D worm has taken the number one spot in the virus chart, while last year's hardest hitting virus, W32/Netsky-P, has dropped to second place.
In contrast, W32/Sober-Z, unleashed in November 2005, climbed to the third position as it continues to disrupt and clog networks worldwide. The “Sophos Security Threat Management Report 2005” reveals that on average, one in every 44 emails was viral during 2005. This rose to one in 12 during major outbreaks, while 15,907 new malware threats were identified.
The top ten viruses of the year, according to Sophos, are as follows:
|
Position
|
|
Virus
|
|
Percentage of reports
|
| 1 |
|
W32/Zafi-D |
|
16.7% |
| 2 |
|
W32/Netsky-P |
|
15.7% |
| 3 |
|
W32/Sober-Z |
|
6.0% |
| 4 |
|
W32/Sober-N |
|
4.3% |
| 5 |
|
W32/Zafi-B |
|
4.0% |
| 6 |
|
W32/Mytob-BE |
|
3.9% |
| 7 |
|
W32/Mytob-AS |
|
3.8% |
| 8 |
|
W32/Netsky-D |
|
3.0% |
| 9 |
|
W32/Mytob-GH |
|
1.9% |
| 10 |
|
W32/Mytob-EP |
|
1.8% |
|
|
Others |
|
38.9% |
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