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Trojan.DownLoader35.18575

Added to the Dr.Web virus database: 2020-11-06

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Bomgar_Cleanup_ZD11162967624' = 'cmd.exe /C rd /S /Q "%TEMP%\nsm764A.tmpb" & reg.exe delete HKCU\Software\Microsoft\Windows\CurrentVersio...
Modifies file system
Creates the following files
  • %TEMP%\nsw7639.tmp
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\scc-attach.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\scc-attach-hovered.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\sas.dll
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\remove.exe
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\preload-en-us.rdf
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\pinuninstall.bat
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\nudge.wav
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\indicator_pinned_disconnected.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\indicator_pinned_connected.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\icon_exclamation.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\embedhook-x86.exe
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\embedhook-x64.exe
  • %TEMP%\nsm764a.tmpb\settings.ini4485
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\cp.dll
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\cbhook-x64.dll
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\button_cb_team.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\button_cb_survey.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\button_cb_private.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\button_cb_access_key.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\bomgar-scc.exe
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\bf13227e-b446-4e12-913e-7e5fbbee54f6
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\bc-typing.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\bc-status-warn.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\bc-status-success.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\bc-status-info.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\bc-status-alert.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\cbhook-x86.dll
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\app_icon.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\scc-chat-flash.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\stop-cb-hook.bat.template
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini25890
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini14093
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini30169
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-cc.ini25161
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini7707
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-cc.ini26842
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini31308
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-cc.ini16863
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini11513
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini22119
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini26575
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini7253
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\scc-chat.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\scc-chat-hovered.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\startup_animation_5.bmp
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\startup_animation_4.bmp
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\startup_animation_3.bmp
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\startup_animation_2.bmp
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\startup_animation_1.bmp
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\start-cb-hook.bat
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\spinner.exe
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-init.ini
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-cc.ini
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\server.lic
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\scc-fontsize.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\scc-fontsize-hovered.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\uninstall.bat
  • %TEMP%\nsm764a.tmpb\settings.ini28743
  • %TEMP%\nsm764a.tmpb\settings.ini10423
  • %TEMP%\nsm764a.tmpb\settings.ini11322
  • %TEMP%\nsm764a.tmpb\button_cb_survey.png
  • %TEMP%\nsm764a.tmpb\button_cb_private.png
  • %TEMP%\nsm764a.tmpb\button_cb_access_key.png
  • %TEMP%\nsm764a.tmpb\bc-typing.png
  • %TEMP%\nsm764a.tmpb\bc-status-warn.png
  • %TEMP%\nsm764a.tmpb\bc-status-success.png
  • %TEMP%\nsm764a.tmpb\bc-status-info.png
  • %TEMP%\nsm764a.tmpb\bc-status-alert.png
  • %TEMP%\nsm764a.tmpb\app_icon.png
  • %TEMP%\nsm764a.tmpb\preload-en-us.rdf
  • %TEMP%\nsm764a.tmpb\server.lic
  • %TEMP%\nsm764a.tmpb\icon_exclamation.png
  • %TEMP%\nsm764a.tmpspinner-$spin_instance\start.cmd
  • %TEMP%\nsm764a.tmpspinner-$spin_instance\spinner-4.bmp
  • %TEMP%\nsm764a.tmpspinner-$spin_instance\spinner-3.bmp
  • %TEMP%\nsm764a.tmpspinner-$spin_instance\spinner-2.bmp
  • %TEMP%\nsm764a.tmpspinner-$spin_instance\spinner-1.bmp
  • %TEMP%\nsm764a.tmpspinner-$spin_instance\spinner.exe
  • %TEMP%\nsm764a.tmpb\startup_animation_5.bmp
  • %TEMP%\nsm764a.tmpb\startup_animation_4.bmp
  • %TEMP%\nsm764a.tmpb\startup_animation_3.bmp
  • %TEMP%\nsm764a.tmpb\startup_animation_2.bmp
  • %TEMP%\nsm764a.tmpb\startup_animation_1.bmp
  • %TEMP%\nsm764a.tmpb\spinner.exe
  • %TEMP%\nsm764a.tmp\system.dll
  • %TEMP%\nsm764a.tmpspinner-$spin_instance\spinner-5.bmp
  • %TEMP%\nsm764a.tmpb\indicator_pinned_connected.png
  • %TEMP%\nsm764a.tmpb\button_cb_team.png
  • %TEMP%\nsm764a.tmpb\indicator_pinned_disconnected.png
  • %TEMP%\nsm764a.tmpb\settings.ini13023
  • %TEMP%\nsm764a.tmpb\sas.dll
  • %TEMP%\nsm764a.tmpb\settings.ini3812
  • %TEMP%\nsm764a.tmpb\settings.ini31234
  • %TEMP%\nsm764a.tmpb\settings.ini20776
  • %TEMP%\nsm764a.tmpb\settings.ini31537
  • %TEMP%\nsm764a.tmpb\settings-cc.ini11717
  • %TEMP%\nsm764a.tmpb\settings-init.ini
  • %TEMP%\nsm764a.tmpb\bf13227e-b446-4e12-913e-7e5fbbee54f6
  • %TEMP%\nsm764a.tmpb\remove.exe
  • %TEMP%\nsm764a.tmpb\cp.dll
  • %TEMP%\nsm764a.tmpb\bomgar-scc.exe
  • %TEMP%\nsm764a.tmpb\pinuninstall.bat
  • %TEMP%\nsm764a.tmpb\uninstall.bat
  • %TEMP%\nsm764a.tmpb\stop-cb-hook.bat.template
  • %TEMP%\nsm764a.tmpb\scc-attach-hovered.png
  • %TEMP%\nsm764a.tmpb\start-cb-hook.bat
  • %TEMP%\nsm764a.tmpb\cbhook-x64.dll
  • %TEMP%\nsm764a.tmpb\cbhook-x86.dll
  • %TEMP%\nsm764a.tmpb\embedhook-x64.exe
  • %TEMP%\nsm764a.tmpb\embedhook-x86.exe
  • %TEMP%\nsm764a.tmpb\nudge.wav
  • %TEMP%\nsm764a.tmpb\scc-fontsize.png
  • %TEMP%\nsm764a.tmpb\scc-fontsize-hovered.png
  • %TEMP%\nsm764a.tmpb\scc-chat.png
  • %TEMP%\nsm764a.tmpb\scc-chat-hovered.png
  • %TEMP%\nsm764a.tmpb\scc-chat-flash.png
  • %TEMP%\nsm764a.tmpb\scc-attach.png
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-cc.ini31516
  • %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini6427
Deletes the following files
  • %TEMP%\nsm764a.tmp\system.dll
  • %TEMP%\nsm764a.tmpb\scc-attach-hovered.png
  • %TEMP%\nsm764a.tmpb\scc-attach.png
  • %TEMP%\nsm764a.tmpb\scc-chat-flash.png
  • %TEMP%\nsm764a.tmpb\scc-chat-hovered.png
  • %TEMP%\nsm764a.tmpb\scc-chat.png
  • %TEMP%\nsm764a.tmpb\scc-fontsize-hovered.png
  • %TEMP%\nsm764a.tmpb\scc-fontsize.png
  • %TEMP%\nsm764a.tmpb\server.lic
  • %TEMP%\nsm764a.tmpb\button_cb_survey.png
  • %TEMP%\nsm764a.tmpb\settings-cc.ini
  • %TEMP%\nsm764a.tmpb\settings.ini
  • %TEMP%\nsm764a.tmpb\spinner.exe
  • %TEMP%\nsm764a.tmpb\start-cb-hook.bat
  • %TEMP%\nsm764a.tmpb\startup_animation_1.bmp
  • %TEMP%\nsm764a.tmpb\startup_animation_2.bmp
  • %TEMP%\nsm764a.tmpb\startup_animation_3.bmp
  • %TEMP%\nsm764a.tmpb\startup_animation_4.bmp
  • %TEMP%\nsm764a.tmpb\startup_animation_5.bmp
  • %TEMP%\nsm764a.tmpb\remove.exe
  • %TEMP%\nsm764a.tmpb\sas.dll
  • %TEMP%\nsm764a.tmpb\preload-en-us.rdf
  • %TEMP%\nsm764a.tmpb\pinuninstall.bat
  • %TEMP%\nsm764a.tmpb\nudge.wav
  • %TEMP%\nsm764a.tmpb\bc-status-alert.png
  • %TEMP%\nsm764a.tmpb\bc-status-info.png
  • %TEMP%\nsm764a.tmpb\bc-status-success.png
  • %TEMP%\nsm764a.tmpb\bc-status-warn.png
  • %TEMP%\nsm764a.tmpb\bc-typing.png
  • %TEMP%\nsm764a.tmpb\bf13227e-b446-4e12-913e-7e5fbbee54f6
  • %TEMP%\nsm764a.tmpb\bomgar-scc.exe
  • %TEMP%\nsm764a.tmpb\button_cb_access_key.png
  • %TEMP%\nsm764a.tmpb\stop-cb-hook.bat.template
  • %TEMP%\nsm764a.tmpb\settings-init.ini
  • %TEMP%\nsm764a.tmpb\button_cb_private.png
  • %TEMP%\nsm764a.tmpb\cbhook-x64.dll
  • %TEMP%\nsm764a.tmpb\cbhook-x86.dll
  • %TEMP%\nsm764a.tmpb\cp.dll
  • %TEMP%\nsm764a.tmpb\embedhook-x64.exe
  • %TEMP%\nsm764a.tmpb\embedhook-x86.exe
  • %TEMP%\nsm764a.tmpb\icon_exclamation.png
  • %TEMP%\nsm764a.tmpb\indicator_pinned_connected.png
  • %TEMP%\nsm764a.tmpb\indicator_pinned_disconnected.png
  • %TEMP%\nsm764a.tmpb\app_icon.png
  • %TEMP%\nsm764a.tmpb\button_cb_team.png
  • %TEMP%\nsm764a.tmpb\uninstall.bat
Moves the following files
  • from %TEMP%\nsm764a.tmpb\settings-cc.ini11717 to %TEMP%\nsm764a.tmpb\settings-cc.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini25890 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini14093 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini30169 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-cc.ini25161 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-cc.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini7707 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-cc.ini26842 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-cc.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini31308 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-cc.ini16863 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-cc.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini11513 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini22119 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-cc.ini31516 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-cc.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini26575 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings-init.ini to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini
  • from %TEMP%\nsm764a.tmpb\settings.ini4485 to %TEMP%\nsm764a.tmpb\settings.ini
  • from %TEMP%\nsm764a.tmpb\settings.ini28743 to %TEMP%\nsm764a.tmpb\settings.ini
  • from %TEMP%\nsm764a.tmpb\settings.ini10423 to %TEMP%\nsm764a.tmpb\settings.ini
  • from %TEMP%\nsm764a.tmpb\settings.ini11322 to %TEMP%\nsm764a.tmpb\settings.ini
  • from %TEMP%\nsm764a.tmpb\settings.ini13023 to %TEMP%\nsm764a.tmpb\settings.ini
  • from %TEMP%\nsm764a.tmpb\settings.ini3812 to %TEMP%\nsm764a.tmpb\settings.ini
  • from %TEMP%\nsm764a.tmpb\settings.ini31234 to %TEMP%\nsm764a.tmpb\settings.ini
  • from %TEMP%\nsm764a.tmpb\settings.ini20776 to %TEMP%\nsm764a.tmpb\settings.ini
  • from %TEMP%\nsm764a.tmpb\settings.ini31537 to %TEMP%\nsm764a.tmpb\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini7253 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini
  • from %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini6427 to %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\settings.ini
Deletes itself.
Network activity
TCP
HTTP GET requests
  • http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt
UDP
  • DNS ASK microsoft.com
Miscellaneous
Creates and executes the following
  • '%TEMP%\nsm764a.tmpb\bomgar-scc.exe' "<Full path to file>" -install1 "<Full path to file>" --installer-pwd "<Current directory>"
  • '%TEMP%\nsm764a.tmpspinner-$spin_instance\spinner.exe' --instance-id $SPIN_INSTANCE --icofile $SPIN_ICON
  • '%ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\bomgar-scc.exe' <Full path to file> -install2 <Full path to file> %TEMP%\nsm764A.tmpb\ %ALLUSERSPROFILE%\bomgar-scc-0x5fa6023a\ --installer-pwd <Current directory>
  • '%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\nsm764A.tmpspinner-$SPIN_INSTANCE\start.cmd" "' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\nsm764A.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.
  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.
Download Dr.Web

Download by serial number

Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

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

Download Dr.Web

Download by serial number

  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.

Find out more about Dr.Web for Android