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Trojan.MulDrop11.19674

Added to the Dr.Web virus database: 2019-10-09

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'amigo' = ''
Creates or modifies the following files
  • <SYSTEM32>\tasks\chrome5_logon
  • <SYSTEM32>\tasks\chrome5
Modifies file system
Creates the following files
  • %ProgramFiles(x86)%\microsoft data\<File name>.exe
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\10429640a68a23
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\gzdtvvpmfdliokg.js
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\qdevojucczmblc.js
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\azlrfyvvjvhjy.js
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\background.js
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\dwysnlcbcho.js
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\gqrsqvnhtxnvqu.js
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\icons\icon128.png
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\icons\icon16.png
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\background.js
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\icons\icon19.png
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\icons\icon48.png
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\injection.js
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\main_compiled.js
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\manifest.json
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\options.html
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\options_compiled.js
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\options_css_compiled.css
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\options_ui.js
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\ubeuaixgftyi.js
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\options_ui.js
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\ubeuaixgftyi.js
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\options_css_compiled.css
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\options_compiled.js
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\options.html
  • %TEMP%\folder_data_rc_adds\adds\addon.xpi
  • %TEMP%\folder_data_rc_adds\adds\addon.crx
  • %TEMP%\folder_data_rc_adds\js\ff_set.json
  • %TEMP%\folder_data_rc_adds\js\chr_pref.json
  • %TEMP%\folder_data_rc_adds\xml\op_wid.xml
  • %TEMP%\folder_data_rc_adds\xml\op_data.xml
  • %TEMP%\folder_data_rc_adds\xml\task.xml
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\gzdtvvpmfdliokg.js
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\qdevojucczmblc.js
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\10429640a68a23
  • %APPDATA%\opera software\opera stable\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\icons\icon32.png
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\azlrfyvvjvhjy.js
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\gqrsqvnhtxnvqu.js
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\icons\icon128.png
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\icons\icon16.png
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\icons\icon19.png
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\icons\icon32.png
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\icons\icon48.png
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\injection.js
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\main_compiled.js
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\manifest.json
  • %TEMP%\folder_data_rc_adds\adds\addon.oex
  • <LS_APPDATA>\google\chrome\user data\default\extensions\cfmnkhhioonhiehehedmnjibmampjiab\1.0.3\dwysnlcbcho.js
  • %APPDATA%\428068643619
Network activity
UDP
  • DNS ASK vb###wqhqq.ru
Miscellaneous
Executes the following
  • '%WINDIR%\syswow64\schtasks.exe' /create /tn chrome5_logon /XML %TEMP%\Folder_Data_RC_ADDS\xml\task.xml /f
  • '%WINDIR%\syswow64\schtasks.exe' /Create /SC DAILY /TN chrome5 /RL HIGHEST /ST 00:30 /TR "\"%ProgramFiles(x86)%\Microsoft Data\<File name>.exe\" /reinstall=1" /f

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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    • 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);
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