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Trojan.Encoder.38991

Aggiunto al database dei virus Dr.Web: 2024-05-31

La descrizione è stata aggiunta:

Technical Information

To ensure autorun and distribution
Sets the following service settings
  • [HKLM\System\CurrentControlSet\Services\IKEEXT] 'Start' = '00000002'
Creates the following files on removable media
  • <Drive name for removable media>:\how to restore your files.txt
Malicious functions
To bypass firewall, removes or modifies the following registry keys
  • [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile] 'EnableFirewall' = '00000000'
  • [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
deletes volume shadow copies.
Executes the following
  • '%WINDIR%\syswow64\netsh.exe' advfirewall set allprofiles state off
Terminates or attempts to terminate
the following user processes:
  • firefox.exe
Modifies file system
Creates the following files
  • C:\how to restore your files.txt
  • %HOMEPATH%\documents\my videos\how to restore your files.txt
  • %HOMEPATH%\documents\my pictures\how to restore your files.txt
  • %HOMEPATH%\documents\my music\how to restore your files.txt
  • %HOMEPATH%\documents\how to restore your files.txt
  • %HOMEPATH%\application data\how to restore your files.txt
  • %HOMEPATH%\favorites\how to restore your files.txt
  • %HOMEPATH%\how to restore your files.txt
  • %HOMEPATH%\cookies\how to restore your files.txt
  • %HOMEPATH%\contacts\how to restore your files.txt
  • C:\users\public\videos\sample videos\how to restore your files.txt
  • C:\users\public\recorded tv\sample media\how to restore your files.txt
  • C:\users\public\recorded tv\how to restore your files.txt
  • C:\users\public\libraries\how to restore your files.txt
  • %HOMEPATH%\desktop\how to restore your files.txt
  • C:\users\public\desktop\how to restore your files.txt
  • %HOMEPATH%\favorites\links\how to restore your files.txt
  • <Current directory>\how to restore your files.txt
  • %HOMEPATH%\templates\how to restore your files.txt
  • %HOMEPATH%\start menu\how to restore your files.txt
  • %HOMEPATH%\sendto\how to restore your files.txt
  • %HOMEPATH%\links\how to restore your files.txt
  • %HOMEPATH%\favorites\microsoft websites\how to restore your files.txt
  • C:\users\default\sendto\how to restore your files.txt
  • %HOMEPATH%\downloads\how to restore your files.txt
  • %HOMEPATH%\recent\how to restore your files.txt
  • %HOMEPATH%\printhood\how to restore your files.txt
  • %HOMEPATH%\nethood\how to restore your files.txt
  • %HOMEPATH%\local settings\how to restore your files.txt
  • %HOMEPATH%\favorites\windows live\how to restore your files.txt
  • %HOMEPATH%\favorites\msn websites\how to restore your files.txt
  • %HOMEPATH%\saved games\how to restore your files.txt
  • %HOMEPATH%\favorites\links for united states\how to restore your files.txt
  • C:\users\public\music\sample music\how to restore your files.txt
  • C:\users\public\pictures\sample pictures\how to restore your files.txt
  • C:\users\public\favorites\how to restore your files.txt
  • C:\users\default\how to restore your files.txt
  • C:\documents and settings\how to restore your files.txt
  • C:\kms\how to restore your files.txt
  • C:\msocache\how to restore your files.txt
  • C:\recovery\how to restore your files.txt
  • C:\perflogs\admin\how to restore your files.txt
  • D:\how to restore your files.txt
  • C:\recovery\4cc8e8a4-51d2-11ee-b826-9a90d4dcffb5\how to restore your files.txt
  • C:\users\default\downloads\how to restore your files.txt
  • C:\users\default\cookies\how to restore your files.txt
  • C:\users\default\application data\how to restore your files.txt
  • C:\users\default\desktop\how to restore your files.txt
  • C:\users\default\documents\how to restore your files.txt
  • C:\users\default\documents\my music\how to restore your files.txt
  • C:\perflogs\how to restore your files.txt
  • %HOMEPATH%\searches\how to restore your files.txt
  • C:\users\default\favorites\how to restore your files.txt
  • C:\users\default\nethood\how to restore your files.txt
  • C:\users\default\links\how to restore your files.txt
  • C:\users\public\documents\my videos\how to restore your files.txt
  • C:\users\public\downloads\how to restore your files.txt
  • C:\users\public\documents\my music\how to restore your files.txt
  • C:\users\public\documents\my pictures\how to restore your files.txt
  • C:\users\default\start menu\how to restore your files.txt
  • C:\users\default\local settings\how to restore your files.txt
  • C:\users\public\documents\how to restore your files.txt
  • C:\users\default\documents\my pictures\how to restore your files.txt
  • C:\users\public\how to restore your files.txt
  • C:\users\default\recent\how to restore your files.txt
  • C:\users\default\saved games\how to restore your files.txt
  • C:\users\default\printhood\how to restore your files.txt
  • C:\users\default\documents\my videos\how to restore your files.txt
  • C:\users\default\templates\how to restore your files.txt
  • m:\how to restore your files.txt
Modifies the following files
  • C:\kms\kms_vl_all_aio_debug.log.babyk
  • %HOMEPATH%\desktop\000814251_video_01.avi.babyk
  • %HOMEPATH%\contacts\user.contact.babyk
  • C:\users\public\pictures\sample pictures\jellyfish.jpg.babyk
  • C:\users\public\pictures\sample pictures\penguins.jpg.babyk
  • C:\users\public\pictures\sample pictures\lighthouse.jpg.babyk
  • C:\users\public\pictures\sample pictures\koala.jpg.babyk
  • C:\users\public\libraries\recordedtv.library-ms.babyk
  • C:\users\public\music\sample music\sleep away.mp3.babyk
  • C:\users\public\music\sample music\maid with the flaxen hair.mp3.babyk
  • C:\users\public\pictures\sample pictures\hydrangeas.jpg.babyk
  • C:\users\public\pictures\sample pictures\desert.jpg.babyk
  • C:\users\public\music\sample music\kalimba.mp3.babyk
  • C:\users\public\pictures\sample pictures\tulips.jpg.babyk
  • C:\users\public\pictures\sample pictures\chrysanthemum.jpg.babyk
  • C:\users\public\desktop\steam.lnk.babyk
  • C:\users\public\desktop\mozilla thunderbird.lnk.babyk
  • C:\users\public\desktop\opera.lnk.babyk
  • C:\users\public\desktop\firefox.lnk.babyk
  • C:\users\public\desktop\acrobat reader dc.lnk.babyk
  • C:\users\default\ntuser.dat.log1.babyk
  • C:\users\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tmcontainer00000000000000000002.regtrans-ms.babyk
  • C:\users\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tm.blf.babyk
  • C:\users\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tmcontainer00000000000000000001.regtrans-ms.babyk
  • C:\users\default\ntuser.dat.log2.babyk
  • C:\recovery\4cc8e8a4-51d2-11ee-b826-9a90d4dcffb5\winre.wim.babyk
  • C:\recovery\4cc8e8a4-51d2-11ee-b826-9a90d4dcffb5\boot.sdi.babyk
  • C:\kms\kms_vl_all_aio.cmd.babyk
  • %HOMEPATH%\desktop\64bit_notes.htm.babyk
  • C:\users\public\recorded tv\sample media\win7_scenic-demoshort_raw.wtv.babyk
Modifies multiple files.
Changes user data files extensions (Trojan.Encoder).
Network activity
UDP
  • 'localhost':62296
  • 'localhost':52250
Miscellaneous
Executes the following
  • '<SYSTEM32>\cmd.exe' /c vssadmin.exe delete shadows /all /quiet
  • '%WINDIR%\syswow64\cmd.exe' /c netsh advfirewall set allprofiles state off
  • '<SYSTEM32>\cmd.exe' /c vssadmin.exe delete shadows /all /quiet' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c netsh advfirewall set allprofiles state off' (with hidden window)

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