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IT Security

IPA:IPA/ISEC Reports for Computer Virus for the First-half (January June2008)

October 14, 2008

IT Security Center
Information-technology Promotion Agency, Japan (IPA)

This is the summary report for the unauthorized computer access for the 3rd Quarter (July to September) in 2008 compiled by IPA.

1. Reported Number

The reported number for the 3rd Quarter (July – September) 2008 totaled 5,134.  The following graph shows the reported numbers filed by IPA by quarter (every 3 months) over the past year.  As the graph shown, the reported numbers tended to decrease from the 2nd Quarter (April – June) in 2007 to the 1st Quarter (January to March) in 2008 and was subsequently shifted in almost the same level.

Chart 1: Reported Number of Virus/Half a Year

Chart 1: Reported Number of Virus/Half a Year

2. Detection Number of Virus

As with the detection number, the reported number of virus was also tended to decrease.  The major cause was that the detection number of W32/Netsky, the mostly reported virus, was decreasing.  Because of the installation of anti-virus software is getting promulgated, it can be viewed that the infected computers are decreasing in their number.

According to the survey result*1 conducted by IPA relevant to the information security measures, 填pdating of security patches by Windows Update� and 的nstallation/leverage in anti-virus measures software� were implemented by about 80% of users. In addition, about 90% of users recognized that 鍍he attachment file(s) to suspicious e-mail(s) should not be opened�; accordingly, the necessity of information security measures is being penetrated among users.

(*1)The 1st Awareness survey relevant to the threat in information security conducted by IPA in 2008(in Japanese)

  • http://www.ipa.go.jp/security/fy20/reports/ishiki01/index.html
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    Chart 2: Detection Number of Virus by Month

    Chart 2: Detection Number of Virus by Month

    3. Reported Number by Virus

    Currently, none of new virus that cause significant damage is not emerged: accordingly, the reported number of virus for the 3rd Quarter in 2008 was shifted in almost the same level from the previous quarter.  As its results, the detection number itself is decreasing, but the reports relevant to W32/Netsky continually takes over almost the entire reported number. To prevent the damage infected by virus, be sure to conduct fundamental security measures daily such as updating virus signature constantly, leveraging in anti-virus software and taking care in handling attachment files to e-mail, etc.

    Chart 3: Reported Number by Virus

    Chart 3: Reported Number by Virus

    Inquiries to:

    Information-Technology Promotion Agency, Security Center
    Hanamura/Kagaya/Ooura
    Tel:+81-3-5978-7527
    Fax:+81-3-5978-7518
    E-mail: Please feel free to call at +81-3-5978-7517.