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Trojan.DownLoader38.19612

Added to the Dr.Web virus database: 2021-03-31

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Bomgar_Cleanup_ZD53342915016' = 'cmd.exe /C rd /S /Q "%TEMP%\nssACB4.tmpb" & reg.exe delete HKCU\Software\Microsoft\Windows\CurrentVersio...
Modifies file system
Creates the following files
  • %TEMP%\nsdaca4.tmp
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\scc-attach.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\scc-attach-hovered.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\sas.dll
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\remove.exe
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\preload-en-us.rdf
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\pinuninstall.bat
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\nudge.wav
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\indicator_pinned_disconnected.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\indicator_pinned_connected.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\icon_exclamation.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\embedhook-x86.exe
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\embedhook-x64.exe
  • %TEMP%\nssacb4.tmpb\settings.ini585
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\cp.dll
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\cbhook-x64.dll
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\button_cb_team.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\button_cb_survey.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\button_cb_private.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\button_cb_access_key.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\bomgar-scc.exe
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\bf13227e-b446-4e12-913e-7e5fbbee54f6
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\bc-typing.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\bc-status-warn.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\bc-status-success.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\bc-status-info.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\bc-status-alert.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\cbhook-x86.dll
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\app_icon.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\scc-chat-flash.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\stop-cb-hook.bat.template
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini4475
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini9682
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini15371
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-cc.ini21812
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini2196
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-cc.ini26129
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini7889
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-cc.ini6135
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini8835
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini5575
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini14675
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini4741
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\scc-chat.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\scc-chat-hovered.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\startup_animation_5.bmp
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\startup_animation_4.bmp
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\startup_animation_3.bmp
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\startup_animation_2.bmp
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\startup_animation_1.bmp
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\start-cb-hook.bat
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\spinner.exe
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-init.ini
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-cc.ini
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\server.lic
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\scc-fontsize.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\scc-fontsize-hovered.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\uninstall.bat
  • %TEMP%\nssacb4.tmpb\settings.ini12711
  • %TEMP%\nssacb4.tmpb\settings.ini17843
  • %TEMP%\nssacb4.tmpb\settings.ini14071
  • %TEMP%\nssacb4.tmpb\button_cb_survey.png
  • %TEMP%\nssacb4.tmpb\button_cb_private.png
  • %TEMP%\nssacb4.tmpb\button_cb_access_key.png
  • %TEMP%\nssacb4.tmpb\bc-typing.png
  • %TEMP%\nssacb4.tmpb\bc-status-warn.png
  • %TEMP%\nssacb4.tmpb\bc-status-success.png
  • %TEMP%\nssacb4.tmpb\bc-status-info.png
  • %TEMP%\nssacb4.tmpb\bc-status-alert.png
  • %TEMP%\nssacb4.tmpb\app_icon.png
  • %TEMP%\nssacb4.tmpb\preload-en-us.rdf
  • %TEMP%\nssacb4.tmpb\server.lic
  • %TEMP%\nssacb4.tmpb\icon_exclamation.png
  • %TEMP%\nssacb4.tmpspinner-$spin_instance\start.cmd
  • %TEMP%\nssacb4.tmpspinner-$spin_instance\spinner-4.bmp
  • %TEMP%\nssacb4.tmpspinner-$spin_instance\spinner-3.bmp
  • %TEMP%\nssacb4.tmpspinner-$spin_instance\spinner-2.bmp
  • %TEMP%\nssacb4.tmpspinner-$spin_instance\spinner-1.bmp
  • %TEMP%\nssacb4.tmpspinner-$spin_instance\spinner.exe
  • %TEMP%\nssacb4.tmpb\startup_animation_5.bmp
  • %TEMP%\nssacb4.tmpb\startup_animation_4.bmp
  • %TEMP%\nssacb4.tmpb\startup_animation_3.bmp
  • %TEMP%\nssacb4.tmpb\startup_animation_2.bmp
  • %TEMP%\nssacb4.tmpb\startup_animation_1.bmp
  • %TEMP%\nssacb4.tmpb\spinner.exe
  • %TEMP%\nssacb4.tmp\system.dll
  • %TEMP%\nssacb4.tmpspinner-$spin_instance\spinner-5.bmp
  • %TEMP%\nssacb4.tmpb\indicator_pinned_connected.png
  • %TEMP%\nssacb4.tmpb\button_cb_team.png
  • %TEMP%\nssacb4.tmpb\indicator_pinned_disconnected.png
  • %TEMP%\nssacb4.tmpb\settings.ini24778
  • %TEMP%\nssacb4.tmpb\sas.dll
  • %TEMP%\nssacb4.tmpb\settings.ini2395
  • %TEMP%\nssacb4.tmpb\settings.ini8606
  • %TEMP%\nssacb4.tmpb\settings.ini1571
  • %TEMP%\nssacb4.tmpb\settings.ini5544
  • %TEMP%\nssacb4.tmpb\settings-cc.ini16429
  • %TEMP%\nssacb4.tmpb\settings-init.ini
  • %TEMP%\nssacb4.tmpb\bf13227e-b446-4e12-913e-7e5fbbee54f6
  • %TEMP%\nssacb4.tmpb\remove.exe
  • %TEMP%\nssacb4.tmpb\cp.dll
  • %TEMP%\nssacb4.tmpb\bomgar-scc.exe
  • %TEMP%\nssacb4.tmpb\pinuninstall.bat
  • %TEMP%\nssacb4.tmpb\uninstall.bat
  • %TEMP%\nssacb4.tmpb\stop-cb-hook.bat.template
  • %TEMP%\nssacb4.tmpb\scc-attach-hovered.png
  • %TEMP%\nssacb4.tmpb\start-cb-hook.bat
  • %TEMP%\nssacb4.tmpb\cbhook-x64.dll
  • %TEMP%\nssacb4.tmpb\cbhook-x86.dll
  • %TEMP%\nssacb4.tmpb\embedhook-x64.exe
  • %TEMP%\nssacb4.tmpb\embedhook-x86.exe
  • %TEMP%\nssacb4.tmpb\nudge.wav
  • %TEMP%\nssacb4.tmpb\scc-fontsize.png
  • %TEMP%\nssacb4.tmpb\scc-fontsize-hovered.png
  • %TEMP%\nssacb4.tmpb\scc-chat.png
  • %TEMP%\nssacb4.tmpb\scc-chat-hovered.png
  • %TEMP%\nssacb4.tmpb\scc-chat-flash.png
  • %TEMP%\nssacb4.tmpb\scc-attach.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-cc.ini1108
  • %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini24544
Deletes the following files
  • %TEMP%\nssacb4.tmp\system.dll
  • %TEMP%\nssacb4.tmpb\scc-attach-hovered.png
  • %TEMP%\nssacb4.tmpb\scc-attach.png
  • %TEMP%\nssacb4.tmpb\scc-chat-flash.png
  • %TEMP%\nssacb4.tmpb\scc-chat-hovered.png
  • %TEMP%\nssacb4.tmpb\scc-chat.png
  • %TEMP%\nssacb4.tmpb\scc-fontsize-hovered.png
  • %TEMP%\nssacb4.tmpb\scc-fontsize.png
  • %TEMP%\nssacb4.tmpb\server.lic
  • %TEMP%\nssacb4.tmpb\button_cb_survey.png
  • %TEMP%\nssacb4.tmpb\settings-cc.ini
  • %TEMP%\nssacb4.tmpb\settings.ini
  • %TEMP%\nssacb4.tmpb\spinner.exe
  • %TEMP%\nssacb4.tmpb\start-cb-hook.bat
  • %TEMP%\nssacb4.tmpb\startup_animation_1.bmp
  • %TEMP%\nssacb4.tmpb\startup_animation_2.bmp
  • %TEMP%\nssacb4.tmpb\startup_animation_3.bmp
  • %TEMP%\nssacb4.tmpb\startup_animation_4.bmp
  • %TEMP%\nssacb4.tmpb\startup_animation_5.bmp
  • %TEMP%\nssacb4.tmpb\remove.exe
  • %TEMP%\nssacb4.tmpb\sas.dll
  • %TEMP%\nssacb4.tmpb\preload-en-us.rdf
  • %TEMP%\nssacb4.tmpb\pinuninstall.bat
  • %TEMP%\nssacb4.tmpb\nudge.wav
  • %TEMP%\nssacb4.tmpb\bc-status-alert.png
  • %TEMP%\nssacb4.tmpb\bc-status-info.png
  • %TEMP%\nssacb4.tmpb\bc-status-success.png
  • %TEMP%\nssacb4.tmpb\bc-status-warn.png
  • %TEMP%\nssacb4.tmpb\bc-typing.png
  • %TEMP%\nssacb4.tmpb\bf13227e-b446-4e12-913e-7e5fbbee54f6
  • %TEMP%\nssacb4.tmpb\bomgar-scc.exe
  • %TEMP%\nssacb4.tmpb\button_cb_access_key.png
  • %TEMP%\nssacb4.tmpb\stop-cb-hook.bat.template
  • %TEMP%\nssacb4.tmpb\settings-init.ini
  • %TEMP%\nssacb4.tmpb\button_cb_private.png
  • %TEMP%\nssacb4.tmpb\cbhook-x64.dll
  • %TEMP%\nssacb4.tmpb\cbhook-x86.dll
  • %TEMP%\nssacb4.tmpb\cp.dll
  • %TEMP%\nssacb4.tmpb\embedhook-x64.exe
  • %TEMP%\nssacb4.tmpb\embedhook-x86.exe
  • %TEMP%\nssacb4.tmpb\icon_exclamation.png
  • %TEMP%\nssacb4.tmpb\indicator_pinned_connected.png
  • %TEMP%\nssacb4.tmpb\indicator_pinned_disconnected.png
  • %TEMP%\nssacb4.tmpb\app_icon.png
  • %TEMP%\nssacb4.tmpb\button_cb_team.png
  • %TEMP%\nssacb4.tmpb\uninstall.bat
Moves the following files
  • from %TEMP%\nssacb4.tmpb\settings-cc.ini16429 to %TEMP%\nssacb4.tmpb\settings-cc.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini4475 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini9682 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini15371 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-cc.ini21812 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-cc.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini2196 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-cc.ini26129 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-cc.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini7889 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-cc.ini6135 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-cc.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini8835 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini5575 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-cc.ini1108 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-cc.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini14675 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings-init.ini to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini
  • from %TEMP%\nssacb4.tmpb\settings.ini585 to %TEMP%\nssacb4.tmpb\settings.ini
  • from %TEMP%\nssacb4.tmpb\settings.ini12711 to %TEMP%\nssacb4.tmpb\settings.ini
  • from %TEMP%\nssacb4.tmpb\settings.ini17843 to %TEMP%\nssacb4.tmpb\settings.ini
  • from %TEMP%\nssacb4.tmpb\settings.ini14071 to %TEMP%\nssacb4.tmpb\settings.ini
  • from %TEMP%\nssacb4.tmpb\settings.ini24778 to %TEMP%\nssacb4.tmpb\settings.ini
  • from %TEMP%\nssacb4.tmpb\settings.ini2395 to %TEMP%\nssacb4.tmpb\settings.ini
  • from %TEMP%\nssacb4.tmpb\settings.ini8606 to %TEMP%\nssacb4.tmpb\settings.ini
  • from %TEMP%\nssacb4.tmpb\settings.ini1571 to %TEMP%\nssacb4.tmpb\settings.ini
  • from %TEMP%\nssacb4.tmpb\settings.ini5544 to %TEMP%\nssacb4.tmpb\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini4741 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini24544 to %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\settings.ini
Deletes itself.
Network activity
Connects to
  • 'microsoft.com':80
UDP
  • DNS ASK microsoft.com
Miscellaneous
Creates and executes the following
  • '%TEMP%\nssacb4.tmpb\bomgar-scc.exe' "<Full path to file>" -install1 "<Full path to file>" --installer-pwd "<Current directory>"
  • '%TEMP%\nssacb4.tmpspinner-$spin_instance\spinner.exe' --instance-id $SPIN_INSTANCE --icofile $SPIN_ICON
  • '%ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\bomgar-scc.exe' <Full path to file> -install2 <Full path to file> %TEMP%\nssACB4.tmpb\ %ALLUSERSPROFILE%\bomgar-scc-0x6064f6d9\ --installer-pwd <Current directory>
  • '%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\nssACB4.tmpspinner-$SPIN_INSTANCE\start.cmd" "' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\nssACB4.tmpspinner-$SPIN_INSTANCE\start.cmd" "

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.
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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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