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Tests for Nimda Worm infected HTML files
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Your server appears to have been compromised by the Nimda mass mailing worm. It uses various known IIS vulnerabilities to compromise the server.
Insight
Insight
Anyone visiting compromised Web servers will be prompted to download an .eml (Outlook Express) email file, which contains the worm as an attachment. Also, the worm will create open network shares on the infected computer, allowing access to the system. During this process the worm creates the guest account with Administrator privileges. Note: this worm has already infected more than 500.000 computers worldwide since its release in late 2001.
Solution
Solution
Take this server offline immediately, rebuild it and apply ALL vendor patches and security updates before reconnecting server to the internet, as well as security settings discussed in Additional Information section of Microsoft's web site linked in the references. Check ALL of your local Microsoft based workstations for infection.