Symantec.com > Security Response > Threats and Risks > Dialer.BaciamiStupido

Dialer.BaciamiStupido

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Updated: February 13, 2007 11:47:31 AM
Type: Dialer
Risk Impact: High
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP


When Dialer.BaciamiStupido is executed, it performs the following actions:
  1. Copies itself as:

    • %UserProfile%\Start Menu\[ORIGINAL FILE NAME]
    • %UserProfile%\[ORIGINAL FILE NAME]

      Note: %UserProfile% is a variable that refers to the current user's profile folder. By default, this is C:\Documents and Settings\<Current User> (Windows NT/2000/XP).

  2. Adds the value:

    "*" = "2"

    to the registry subkeys:

    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\super-videochat-community.biz\www
    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\nanobyte.biz\www
    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\umts-gprs-mondo-telefonino-cellulare.biz\www
    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\baciamistupido.biz\www
    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\popup-freesex-adv.biz\www
    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\ricercadoppia.com\www
    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\roserosse.biz\www
    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\terzodesiderio.biz\www

  3. Adds the values:

    "1001" = "0"
    "1004" = "0"
    "1200" = "0"
    "1201" = "0"
    "1400" = "0"
    "1402" = "0"
    "1405" = "0"
    "1406" = "0"
    "1407" = "0"
    "1609" = "1"
    "1800" = "0"
    "1803" = "0"
    "CurrentLevel" = "0"
    "MinLevel" = "0"
    "RecommendedLevel" = "0"


    to the registry subkey:

    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2

  4. Changes the Internet Explorer home page to www.popup-freesex-adv.biz.

  5. Creates the following phone book:

    %System%\_PHB1

    Note: %System% is a variable that refers to the System folder. By default this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

  6. Makes an outgoing connection to the following server by dialing a high-cost number using the modem:

    www.baciamistupido.biz/[REMOVED]

  7. Downloads the following files, if the user opens Internet Explorer:

    %System%\ciakaisen.exe
    %System%\smallActive.dll

  8. Adds the following value:

    "ciakaisen.exe" = "%System%\ciakaisen.exe"

    to the registry subkey:

    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run

  9. Adds the following values:

    "%System%\ciakaisen.exe" = "1"
    "%System%\smallActive.dll" = "1"

    to the registry subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDLLs

  10. Creates the following registry subkeys:

    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\
    {9F5BB9E1-31AE-4A13-8734-15CED0F60A3D}
    HKEY_CLASSES_ROOT\CLSID\{9F5BB9E1-31AE-4A13-8734-15CED0F60A3D}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\
    {8DAB5C8C-C784-4651-84F7-B6C9F4EEC53D}
    HKEY_CLASSES_ROOT\TypeLib\{8DAB5C8C-C784-4651-84F7-B6C9F4EEC53D}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\ActiveXCOM.myActiveXCOM
    HKEY_CLASSES_ROOT\ActiveXCOM.myActiveXCOM
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Code Store Database\
    Distribution Units\{9F5BB9E1-31AE-4A13-8734-15CED0F60A3D}
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
    ModuleUsage\%System%/ciakaisen.exe
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
    ModuleUsage\%System%/smallActive.dll
    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\
    {9F5BB9E1-31AE-4A13-8734-15CED0F60A3D}
    HKEY_CURRENT_USER\Software\ADWhere Component


  11. Attempts to download other security risks and the latest version of itself.


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