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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

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Vulnerability Assessment Details

Dabber worm detection

Vulnerability Assessment Summary
Dabber worm detection

Detailed Explanation for this Vulnerability Assessment

W32.Dabber propagates by exploiting a vulnerability in the FTP server
component of W32.Sasser.Worm and its variants.
It installs a backdoor on infected hosts and tries to listen on port 9898.
If the attempt fails, W32Dabber.A tries to listen on ports 9899 through 9999
in sequence until it finds an open port.

See also :
http://securityresponse.symantec.com/avcenter/venc/data/w32.dabber.b.html
http://www.microsoft.com/technet/security/bulletin/MS04-011.mspx

Solution:
- Disable access to port 445 and Dabber remote shell by using a firewall
- Apply Microsoft MS04-011 patch
- Update your virus definitions

Network Security Threat Level: High

Networks Security ID:

Vulnerability Assessment Copyright: This script is Copyright (C) 2004 David Maciejak

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