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Trojan.DownLoader3.61638

Added to the Dr.Web virus database: 2011-07-02

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'hotmail' = '<Full path to virus>'
Miscellaneous:
Searches for the following windows:
  • ClassName: '' WindowName: 'Serasa Experian - Consultas Serasa, Cheque, Consulta CPF, Consulta CNPJ, Cr?dito, Serasa Certif - Windows Internet Explorer'
  • ClassName: '' WindowName: 'Serasa Experian - Consultas Serasa, Cheque, Consulta CPF, Consulta CNPJ, Cr?dito, Serasa Certif - Microsoft Internet Explorer'
  • ClassName: '' WindowName: 'Cloud Computing - TECLA INTERNET - Servi?os de hospedagem em Cloud Computing - Windows Internet Explorer'
  • ClassName: '' WindowName: 'Terra Mail - Microsoft Internet Explorer'
  • ClassName: '' WindowName: 'HostLocation - Hospedagem de sites, Servidores Dedicados e Servidores Virtuais - Windows Internet Explorer'
  • ClassName: '' WindowName: 'HostLocation - Hospedagem de sites, Servidores Dedicados e Servidores Virtuais - Microsoft Internet Explorer'
  • ClassName: '' WindowName: 'Terra Mail - Windows Internet Explorer'
  • ClassName: '' WindowName: 'Cloud Computing - TECLA INTERNET - Servi?os de hospedagem em Cloud Computing - Microsoft Internet Explorer'
  • ClassName: '' WindowName: 'HOSPEDAGEM DE SITES R$ 9.90, EMAIL GIGANTE COM AT? 200 Gb, Asp, Php, MySQL, PostgreSQL, Firebir - Windows Internet Explorer'
  • ClassName: '' WindowName: 'HOSPEDAGEM DE SITES R$ 9.90, EMAIL GIGANTE COM AT? 200 Gb, Asp, Php, MySQL, PostgreSQL, Firebir - Microsoft Internet Explorer'
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: '' WindowName: '?rea do Cliente ? WebNames Registro de Dominios e Hospedagem de Sites - Microsoft Internet Explorer'
  • ClassName: '' WindowName: '#01 Hostgold Hospedagem de sites, servidor dedicado e datacenter - Windows Internet Explorer'
  • ClassName: '' WindowName: '#01 Hostgold Hospedagem de sites, servidor dedicado e datacenter - Microsoft Internet Explorer'
  • ClassName: '' WindowName: '?rea do Cliente ? WebNames Registro de Dominios e Hospedagem de Sites - Windows Internet Explorer'
  • ClassName: '' WindowName: 'Hosted Hospedagem - Microsoft Internet Explorer'
  • ClassName: '' WindowName: 'UOL - O melhor conte?do - Windows Internet Explorer'
  • ClassName: '' WindowName: 'UOL - O melhor conte?do - Microsoft Internet Explorer'
  • ClassName: '' WindowName: 'Hospedagem de sites com dom?nio GR?TIS! - UOL HOST - Windows Internet Explorer'
  • ClassName: '' WindowName: 'Hospedagem de Sites e Servi?os de Internet - Locaweb - Microsoft Internet Explorer'
  • ClassName: '' WindowName: 'Entrar - Windows Internet Explorer'
  • ClassName: '' WindowName: 'Entrar - Microsoft Internet Explorer'
  • ClassName: '' WindowName: 'Hospedagem de Sites e Servi?os de Internet - Locaweb - Windows Internet Explorer'
  • ClassName: '' WindowName: 'Hospedagem de sites com dom?nio GR?TIS! - UOL HOST - Microsoft Internet Explorer'
  • ClassName: '' WindowName: 'Painel de Controle Kinghost - Windows Internet Explorer'
  • ClassName: '' WindowName: 'Painel de Controle Kinghost - Microsoft Internet Explorer'
  • ClassName: '' WindowName: 'Hosted Hospedagem - Windows Internet Explorer'
  • ClassName: '' WindowName: 'Hostnet Internet - Indicado pela Info como melhor hospedagem paga do Brasil - Microsoft Internet Explorer'
  • ClassName: '' WindowName: 'iG Neg?cios - Windows Internet Explorer'
  • ClassName: '' WindowName: 'iG Neg?cios - Microsoft Internet Explorer'
  • ClassName: '' WindowName: 'Hostnet Internet - Indicado pela Info como melhor hospedagem paga do Brasil - Windows Internet Explorer'

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
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Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

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After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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  1. If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
    • Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

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