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Old 08-Dec-2006, 03:34 AM   #1 (permalink)
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Default Trojan.Win32.Qhost.hq

Technical details
This Trojan is a modified Windows %System%\drivers\etc\hosts file, which is used to translate domain names (DNS) to IP addresses. The modified file is 284 bytes in size. The file is modified in such a way as to prevent the user from viewing the sites listed below, either by blocking them or by redirecting the request.
The following strings are added to the hosts file.
61.129.75.124 mir.100888290cs.com
61.129.75.124 woool.100888290cs.com
61.129.75.124 www.mir5173.com
61.129.75.124 ert0003.e76.163ns.com
219.147.204.249 www.chenshijituan.com
59.36.96.132 qq.etsoft.com.cn
127.0.0.1 eb114.net
127.0.0.1 www.u7u.cn
61.129.75.124 www.wg581.com
This is the result of the activity of another malicious program.
Removal instructions
  1. Modify the %System%\drivers\etc\hosts file using any standard application (e.g. Notepad). Delete the strings added by the Trojan. The original hosts file has the following contents: # Copyright (c) 1993-1999 Microsoft Corp.
    #
    # This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
    #
    # This file contains the mappings of IP addresses to host names. Each
    # entry should be kept on an individual line. The IP address should
    # be placed in the first column followed by the corresponding host name.
    # The IP address and the host name should be separated by at least one
    # space.
    #
    # Additionally, comments (such as these) may be inserted on individual
    # lines or following the machine name denoted by a '#' symbol.
    #
    # For example:
    #
    # 102.54.94.97 rhino.acme.com # source server
    # 38.25.63.10 x.acme.com # x client host
    127.0.0.1 localhost
  2. Update your antivirus databases and perform a full scan of the computer (download a trial version of Kaspersky Anti-Virus).
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