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Trojan.Encoder.32125

Aggiunto al database dei virus Dr.Web: 2020-07-13

La descrizione è stata aggiunta:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'PhoenixTechnology' = '%LOCALAPPDATA%\TempFonix.exe'
  • [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'PhoenixTechnology' = '%LOCALAPPDATA%\TempFonix.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'PhoenixTechnology' = '%LOCALAPPDATA%\TempFonix.exe'
  • [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'PhoenixTechnology' = '%LOCALAPPDATA%\TempFonix.exe'
Creates or modifies the following files
  • <SYSTEM32>\tasks\fonix
Creates the following files on removable media
  • <Drive name for removable media>:\how to decrypt files.hta
  • <Drive name for removable media>:\trivial-merge.html
  • <Drive name for removable media>:\alert.html
  • <Drive name for removable media>:\tree_view.html
  • <Drive name for removable media>:\about.html
  • <Drive name for removable media>:\browse.html
  • <Drive name for removable media>:\4f0bf7ff71f28.jpeg
  • <Drive name for removable media>:\3.jpeg
  • <Drive name for removable media>:\parnas_01.jpeg
  • <Drive name for removable media>:\pushkin.jpeg
  • <Drive name for removable media>:\4f0bf7ff71f28.jpg
  • <Drive name for removable media>:\210252809.jpg
  • <Drive name for removable media>:\168.jpg
  • <Drive name for removable media>:\3.jpg
  • <Drive name for removable media>:\1189.jpg
  • <Drive name for removable media>:\etc6_m_1.mov
  • <Drive name for removable media>:\asm.png
  • <Drive name for removable media>:\firefly1.mov
  • <Drive name for removable media>:\spanner.mov
  • <Drive name for removable media>:\video_1.mp4
  • <Drive name for removable media>:\d0068197bb5a41fea16a220c45390606.mp4
  • <Drive name for removable media>:\clip_480_5sec_6mbps_h264.mp4
  • <Drive name for removable media>:\2015-02-patients-topic-work-related-asthma-jobs.pdf
  • <Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.pdf
  • <Drive name for removable media>:\7790_preview.pdf
  • <Drive name for removable media>:\spib_pima.pdf
  • <Drive name for removable media>:\server.pem
  • <Drive name for removable media>:\systisoft.pem
  • <Drive name for removable media>:\hhhlcert.pem
  • <Drive name for removable media>:\ck_ugo.pem
  • <Drive name for removable media>:\cbz.png
  • <Drive name for removable media>:\iisstart.htm
  • <Drive name for removable media>:\pushkin.jpg
  • <Drive name for removable media>:\trivial-merge.htm
  • <Drive name for removable media>:\hanni_umami_chapter.doc
  • <Drive name for removable media>:\help.txt
  • <Drive name for removable media>:\cpriv.key
  • <Drive name for removable media>:\archer.avi
  • <Drive name for removable media>:\dashborder_96.bmp
  • <Drive name for removable media>:\tileimage.bmp
  • <Drive name for removable media>:\dashborder_192.bmp
  • <Drive name for removable media>:\dial.bmp
  • <Drive name for removable media>:\coffee.bmp
  • <Drive name for removable media>:\dashborder_120.bmp
  • <Drive name for removable media>:\pmd.cer
  • <Drive name for removable media>:\contosoroot.cer
  • <Drive name for removable media>:\testee.cer
  • <Drive name for removable media>:\contoso_1.cer
  • <Drive name for removable media>:\fi51.doc
  • <Drive name for removable media>:\weeklysheet1215.doc
  • <Drive name for removable media>:\advice_process.htm
  • <Drive name for removable media>:\508softwareandos.doc
  • <Drive name for removable media>:\cveuropeo.doc
  • <Drive name for removable media>:\ovp25012015.doc
  • <Drive name for removable media>:\sdszfo.docx
  • <Drive name for removable media>:\holycrosschurchinstructions.docx
  • <Drive name for removable media>:\hadac_newsletter_july_2010_final.docx
  • <Drive name for removable media>:\tcm851ax32.exe
  • <Drive name for removable media>:\skypesetup.exe
  • <Drive name for removable media>:\chromesetup.exe
  • <Drive name for removable media>:\notepad.exe
  • <Drive name for removable media>:\calc.exe
  • <Drive name for removable media>:\jre-7u75-windows-i586-iftw.exe
  • <Drive name for removable media>:\wrar520.exe
  • <Drive name for removable media>:\utorrent.exe
  • <Drive name for removable media>:\about.htm
  • <Drive name for removable media>:\breakpoint.png
Malicious functions
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
  • Windows Task Manager (Taskmgr)
modifies the following system settings:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoClose' = '00000001'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'StartMenuLogOff' = '00000001'
Modifies file system
Creates the following files
  • <Current directory>\xinofsetup.bat
  • D:\how to decrypt files.hta
  • %PROGRAMDATA%\help.txt
  • %PROGRAMDATA%\how to decrypt files.hta
  • %PROGRAMDATA%\systemid
  • <Current directory>\systemid
  • %APPDATA%\cpub.key
  • D:\help.txt
  • %APPDATA%\cpriv.key
  • %PROGRAMDATA%\cpriv.key
  • %TEMP%\cpriv.key
  • %PROGRAMDATA%\cpub.key
  • %TEMP%\cpub.key
  • <Current directory>\cpub.key
  • <Current directory>\cpriv.key
  • %PROGRAMDATA%\crptsrvcflg
  • D:\cpriv.key
Creates ransom message files (Trojan.Encoder).
Modifies user data files (Trojan.Encoder).
Miscellaneous
Executes the following
  • '<SYSTEM32>\cmd.exe' /c schtasks /CREATE /SC ONLOGON /TN fonix /TR %temp%/Fonix.exe /RU SYSTEM /RL HIGHEST /F
  • '<SYSTEM32>\reg.exe' add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoClose /t REG_DWORD /d 1 /f
  • '<SYSTEM32>\cmd.exe' /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoClose /t REG_DWORD /d 1 /f
  • '<SYSTEM32>\reg.exe' add HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\System /v AllowBlockingAppsAtShutdown /t REG_DWORD /d 1 /f
  • '<SYSTEM32>\cmd.exe' /c reg add HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\System /v AllowBlockingAppsAtShutdown /t REG_DWORD /d 1 /f
  • '<SYSTEM32>\cmd.exe' /c Copy SystemID %PROGRAMDATA%\SystemID
  • '<SYSTEM32>\icacls.exe' * /grant Everyone:(OI)(CI)F /T /C /Q
  • '<SYSTEM32>\cmd.exe' /c Copy Cpub.key %appdata%\Cpub.key
  • '<SYSTEM32>\cmd.exe' /c Copy Cpriv.key %appdata%\Cpriv.key
  • '<SYSTEM32>\cmd.exe' /c icacls * /grant Everyone:(OI)(CI)F /T /C /Q
  • '<SYSTEM32>\cmd.exe' /c start cmd.exe /c icacls * /grant Everyone:(OI)(CI)F /T /C /Q
  • '<SYSTEM32>\reg.exe' delete HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\SafeBoot /va /F
  • '<SYSTEM32>\cmd.exe' /c reg delete HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\SafeBoot /va /F
  • '<SYSTEM32>\reg.exe' delete HKEY_CURRENT_USER\System\CurrentControlSet\Control\SafeBoot /va /F
  • '<SYSTEM32>\cmd.exe' /c reg delete HKEY_CURRENT_USER\System\CurrentControlSet\Control\SafeBoot /va /F
  • '<SYSTEM32>\reg.exe' add "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableAntiSpyware /t REG_DWORD /d 1 /f
  • '<SYSTEM32>\cmd.exe' /c reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableAntiSpyware /t REG_DWORD /d 1 /f
  • '<SYSTEM32>\reg.exe' add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
  • '<SYSTEM32>\cmd.exe' /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
  • '<SYSTEM32>\reg.exe' add HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ /v "PhoenixTechnology" /t REG_SZ /d %LOCALAPPDATA%\TempFonix.exe /f
  • '<SYSTEM32>\cmd.exe' /c reg add HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ /v "PhoenixTechnology" /t REG_SZ /d %temp%Fonix.exe /f
  • '<SYSTEM32>\reg.exe' add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ /v "PhoenixTechnology" /t REG_SZ /d %LOCALAPPDATA%\TempFonix.exe /f
  • '<SYSTEM32>\cmd.exe' /c reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ /v "PhoenixTechnology" /t REG_SZ /d %temp%Fonix.exe /f
  • '<SYSTEM32>\reg.exe' add HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ /v "PhoenixTechnology" /t REG_SZ /d %LOCALAPPDATA%\TempFonix.exe /f
  • '<SYSTEM32>\cmd.exe' /c reg add HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ /v "PhoenixTechnology" /t REG_SZ /d %temp%Fonix.exe /f
  • '<SYSTEM32>\reg.exe' add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ /v "PhoenixTechnology" /t REG_SZ /d %LOCALAPPDATA%\TempFonix.exe /f
  • '<SYSTEM32>\cmd.exe' /c reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ /v "PhoenixTechnology" /t REG_SZ /d %temp%Fonix.exe /f
  • '<SYSTEM32>\schtasks.exe' /CREATE /SC ONLOGON /TN fonix /TR %LOCALAPPDATA%\Temp/Fonix.exe /RU SYSTEM /RL HIGHEST /F
  • '<SYSTEM32>\cmd.exe' /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v StartMenuLogOff /t REG_DWORD /d 1 /f
  • '<SYSTEM32>\reg.exe' add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v StartMenuLogOff /t REG_DWORD /d 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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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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