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Trojan.Encoder.42133

Added to the Dr.Web virus database: 2025-05-12

Virus description added:

Technical Information

Malicious functions
Reads files which store third party applications passwords
  • %HOMEPATH%\desktop\000814251_video_01.avi
  • %HOMEPATH%\desktop\tileimage.bmp
  • %HOMEPATH%\desktop\sdksampleunprivdeveloper.cer
  • %HOMEPATH%\desktop\sdkfailsafeemulator.cer
  • %HOMEPATH%\desktop\region-north-karelia.jpg
  • %HOMEPATH%\desktop\parnas_01.jpg
  • %HOMEPATH%\desktop\issi2013_template_for_posters.docx
  • %HOMEPATH%\desktop\howto-index.html
  • %HOMEPATH%\desktop\file_p_00000000_1371597592.docx
  • %HOMEPATH%\desktop\dialmap.bmp
  • %HOMEPATH%\desktop\tree_view.html
  • %HOMEPATH%\desktop\dashborder_192.bmp
  • %HOMEPATH%\desktop\contoso_1.cer
  • %HOMEPATH%\desktop\alert.htm
  • %HOMEPATH%\desktop\advice_process.htm
  • %HOMEPATH%\desktop\508softwareandos.doc
  • %HOMEPATH%\desktop\4f0bf7ff71f28.jpg
  • %HOMEPATH%\desktop\3.jpg
  • %HOMEPATH%\desktop\3.jpeg
  • %HOMEPATH%\desktop\2.jpeg
  • %HOMEPATH%\desktop\168.jpeg
  • %HOMEPATH%\desktop\correct.avi
  • %HOMEPATH%\desktop\trivial-merge.htm
Modifies file system
Creates the following files
  • %ProgramFiles%\desktop.ini.tankix
  • <SYSTEM32>\msvcr120d.dll.tankix
  • <SYSTEM32>\msvcr90d.dll.tankix
  • <SYSTEM32>\network_llu.log.tankix
  • <SYSTEM32>\noise.chs.tankix
  • <SYSTEM32>\noise.cht.tankix
  • <SYSTEM32>\noise.dat.tankix
  • <SYSTEM32>\msvcr110.dll.tankix
  • <SYSTEM32>\noise.kor.tankix
  • <SYSTEM32>\msvcr120.dll.tankix
  • <SYSTEM32>\perfc009.dat.tankix
  • <SYSTEM32>\perfh009.dat.tankix
  • <SYSTEM32>\perfi009.dat.tankix
  • <SYSTEM32>\perfstringbackup.ini.tankix
  • <SYSTEM32>\streamci.dll.tankix
  • <SYSTEM32>\ticrf.rat.tankix
  • <SYSTEM32>\ucrtbased.dll.tankix
  • <SYSTEM32>\noise.tha.tankix
  • <SYSTEM32>\umstartup.etl.tankix
  • <SYSTEM32>\perfd009.dat.tankix
  • <SYSTEM32>\msvcr110d.dll.tankix
  • <SYSTEM32>\msvcr100d.dll.tankix
  • <SYSTEM32>\msvcr100.dll.tankix
  • <SYSTEM32>\mfcm140u.dll.tankix
  • <SYSTEM32>\migwiz.lnk.tankix
  • <SYSTEM32>\mpsigstub.exe.tankix
  • <SYSTEM32>\msclmd.dll.tankix
  • <SYSTEM32>\msvcm90d.dll.tankix
  • <SYSTEM32>\msvcp100.dll.tankix
  • <SYSTEM32>\msvcp100d.dll.tankix
  • <SYSTEM32>\mfcm120u.dll.tankix
  • <SYSTEM32>\msvcp110.dll.tankix
  • <SYSTEM32>\msvcp120.dll.tankix
  • <SYSTEM32>\msvcp120d.dll.tankix
  • <SYSTEM32>\msvcp140.dll.tankix
  • <SYSTEM32>\msvcp140d.dll.tankix
  • <SYSTEM32>\msvcp140_1.dll.tankix
  • <SYSTEM32>\msvcp140_2.dll.tankix
  • <SYSTEM32>\msvcp140_atomic_wait.dll.tankix
  • <SYSTEM32>\msvcp140_codecvt_ids.dll.tankix
  • <SYSTEM32>\msvcp110d.dll.tankix
  • <SYSTEM32>\msvcp90d.dll.tankix
  • <SYSTEM32>\mfcm120.dll.tankix
  • <SYSTEM32>\mfcm140.dll.tankix
  • <SYSTEM32>\umstartup000.etl.tankix
  • <SYSTEM32>\vcamp140.dll.tankix
  • <SYSTEM32>\windowsaccessbridge-64.dll.tankix
  • %HOMEPATH%\ntuser.ini.tankix
  • %HOMEPATH%\documents\desktop.ini.tankix
  • %HOMEPATH%\music\desktop.ini.tankix
  • %HOMEPATH%\pictures\desktop.ini.tankix
  • %HOMEPATH%\videos\desktop.ini.tankix
  • %HOMEPATH%\desktop\000814251_video_01.avi.tankix
  • <SYSTEM32>\vmictimeprovider.dll.tankix
  • <SYSTEM32>\vmstorfltres.dll.tankix
  • %HOMEPATH%\desktop\desktop.ini.tankix
  • C:\users\public\desktop\acrobat reader dc.lnk.tankix
  • C:\users\public\desktop\desktop.ini.tankix
  • C:\users\public\desktop\firefox.lnk.tankix
  • C:\users\public\desktop\mozilla thunderbird.lnk.tankix
  • C:\users\public\desktop\opera.lnk.tankix
  • C:\users\public\desktop\steam.lnk.tankix
  • C:\users\public\documents\desktop.ini.tankix
  • %HOMEPATH%\desktop\google chrome.lnk.tankix
  • %HOMEPATH%\desktop\telegram.lnk.tankix
  • <SYSTEM32>\vmicsvc.exe.tankix
  • <SYSTEM32>\vmdcoinstall.dll.tankix
  • <SYSTEM32>\mfc120deu.dll.tankix
  • <SYSTEM32>\vccorlib110.dll.tankix
  • <SYSTEM32>\vccorlib110d.dll.tankix
  • <SYSTEM32>\vccorlib120.dll.tankix
  • <SYSTEM32>\vccorlib120d.dll.tankix
  • <SYSTEM32>\vccorlib140.dll.tankix
  • <SYSTEM32>\vccorlib140d.dll.tankix
  • <SYSTEM32>\vcomp100.dll.tankix
  • <SYSTEM32>\vcomp110.dll.tankix
  • <SYSTEM32>\vcomp120.dll.tankix
  • <SYSTEM32>\vcomp140.dll.tankix
  • <SYSTEM32>\vcruntime140.dll.tankix
  • <SYSTEM32>\vcruntime140d.dll.tankix
  • <SYSTEM32>\vcruntime140_1.dll.tankix
  • <SYSTEM32>\ven2232.olb.tankix
  • <SYSTEM32>\vmbuscoinstaller.dll.tankix
  • <SYSTEM32>\vmbuspipe.dll.tankix
  • <SYSTEM32>\vmbusres.dll.tankix
  • <SYSTEM32>\vbame.dll.tankix
  • <SYSTEM32>\vcamp120.dll.tankix
  • <SYSTEM32>\vcamp110.dll.tankix
  • <SYSTEM32>\mfcm110u.dll.tankix
  • <SYSTEM32>\mfcm110.dll.tankix
  • <SYSTEM32>\mfcm100u.dll.tankix
  • <SYSTEM32>\dmvscres.dll.tankix
  • <SYSTEM32>\dssec.dat.tankix
  • <SYSTEM32>\fm20.dll.tankix
  • <SYSTEM32>\fm20enu.dll.tankix
  • <SYSTEM32>\fntcache.dat.tankix
  • <SYSTEM32>\iccoinstall.dll.tankix
  • <SYSTEM32>\concrt140d.dll.tankix
  • <SYSTEM32>\icrav03.rat.tankix
  • <SYSTEM32>\dll64.dll.tankix
  • <SYSTEM32>\iscsilog.dll.tankix
  • <SYSTEM32>\license.rtf.tankix
  • <SYSTEM32>\localgroupadminadd.log.tankix
  • <SYSTEM32>\local_llu.log.tankix
  • <SYSTEM32>\mfc100.dll.tankix
  • <SYSTEM32>\mfc100chs.dll.tankix
  • <SYSTEM32>\mfc100cht.dll.tankix
  • <SYSTEM32>\installpackage_etw.log.tankix
  • <SYSTEM32>\concrt140.dll.tankix
  • <SYSTEM32>\korwbrkr.lex.tankix
  • <SYSTEM32>\circoinst.dll.tankix
  • <SYSTEM32>\brcoinst.dll.tankix
  • %ProgramFiles(x86)%\desktop.ini.tankix
  • %WINDIR%\bootstat.dat.tankix
  • %WINDIR%\dtcinstall.log.tankix
  • %WINDIR%\enterprise.xml.tankix
  • %WINDIR%\msdfmap.ini.tankix
  • %WINDIR%\ocsetup_cbs_uninstall_searchengine-client-package.txt.tankix
  • %WINDIR%\ocsetup_uninstall_searchengine-client-package.etl.tankix
  • %WINDIR%\pfro.log.tankix
  • %WINDIR%\setupact.log.tankix
  • C:\users\desktop.ini.tankix
  • %WINDIR%\setuperr.log.tankix
  • %WINDIR%\system.ini.tankix
  • %WINDIR%\tssysprep.log.tankix
  • %WINDIR%\win.ini.tankix
  • %WINDIR%\windowsupdate.log.tankix
  • <SYSTEM32>\aspnet_counters.dll.tankix
  • <SYSTEM32>\atl100.dll.tankix
  • <SYSTEM32>\atl110.dll.tankix
  • <SYSTEM32>\mfc100deu.dll.tankix
  • %WINDIR%\starter.xml.tankix
  • <SYSTEM32>\mfc100enu.dll.tankix
  • <SYSTEM32>\desktop.ini.tankix
  • <SYSTEM32>\mfc100esn.dll.tankix
  • <SYSTEM32>\mfc120fra.dll.tankix
  • <SYSTEM32>\mfc120jpn.dll.tankix
  • <SYSTEM32>\mfc120kor.dll.tankix
  • <SYSTEM32>\mfc120rus.dll.tankix
  • <SYSTEM32>\mfc120u.dll.tankix
  • <SYSTEM32>\mfc140.dll.tankix
  • <SYSTEM32>\mfc140chs.dll.tankix
  • <SYSTEM32>\mfc140cht.dll.tankix
  • <SYSTEM32>\mfc140deu.dll.tankix
  • <SYSTEM32>\mfc140enu.dll.tankix
  • <SYSTEM32>\mfc140esn.dll.tankix
  • <SYSTEM32>\mfc140fra.dll.tankix
  • <SYSTEM32>\mfc140ita.dll.tankix
  • <SYSTEM32>\mfc140jpn.dll.tankix
  • <SYSTEM32>\mfc140kor.dll.tankix
  • <SYSTEM32>\mfc140rus.dll.tankix
  • <SYSTEM32>\mfc140u.dll.tankix
  • <SYSTEM32>\mfcm100.dll.tankix
  • <SYSTEM32>\mfc120esn.dll.tankix
  • <SYSTEM32>\mfc100fra.dll.tankix
  • <SYSTEM32>\mfc120ita.dll.tankix
  • <SYSTEM32>\vmicres.dll.tankix
  • C:\users\public\music\desktop.ini.tankix
  • <SYSTEM32>\mfc120cht.dll.tankix
  • <SYSTEM32>\mfc100jpn.dll.tankix
  • <SYSTEM32>\mfc100kor.dll.tankix
  • <SYSTEM32>\mfc100rus.dll.tankix
  • <SYSTEM32>\mfc100u.dll.tankix
  • <SYSTEM32>\mfc110.dll.tankix
  • <SYSTEM32>\mfc110chs.dll.tankix
  • <SYSTEM32>\mfc110cht.dll.tankix
  • <SYSTEM32>\mfc110deu.dll.tankix
  • <SYSTEM32>\mfc100ita.dll.tankix
  • <SYSTEM32>\mfc110enu.dll.tankix
  • <SYSTEM32>\mfc110fra.dll.tankix
  • <SYSTEM32>\mfc110ita.dll.tankix
  • <SYSTEM32>\mfc110jpn.dll.tankix
  • <SYSTEM32>\mfc110kor.dll.tankix
  • <SYSTEM32>\mfc110rus.dll.tankix
  • <SYSTEM32>\mfc110u.dll.tankix
  • <SYSTEM32>\mfc120.dll.tankix
  • <SYSTEM32>\mfc120chs.dll.tankix
  • <SYSTEM32>\mfc110esn.dll.tankix
  • <SYSTEM32>\mfc120enu.dll.tankix
  • C:\users\public\pictures\desktop.ini.tankix
Deletes the following files
  • %WINDIR%\bootstat.dat
  • <SYSTEM32>\msvcp120d.dll
  • <SYSTEM32>\msvcp140.dll
  • <SYSTEM32>\msvcp140d.dll
  • <SYSTEM32>\msvcp140_1.dll
  • <SYSTEM32>\msvcp140_2.dll
  • <SYSTEM32>\msvcp140_atomic_wait.dll
  • <SYSTEM32>\msvcp140_codecvt_ids.dll
  • <SYSTEM32>\msvcr100.dll
  • <SYSTEM32>\network_llu.log
  • <SYSTEM32>\msvcr100d.dll
  • <SYSTEM32>\msvcr100_clr0400.dll
  • <SYSTEM32>\msvcr110.dll
  • <SYSTEM32>\msvcr110d.dll
  • <SYSTEM32>\msvcr120.dll
  • <SYSTEM32>\msvcr120d.dll
  • <SYSTEM32>\msvcr90d.dll
  • <SYSTEM32>\msvcp120.dll
  • <SYSTEM32>\msvcp90d.dll
  • <SYSTEM32>\msvcp110d.dll
  • <SYSTEM32>\mfcm120.dll
  • <SYSTEM32>\mfc140kor.dll
  • <SYSTEM32>\mfc140rus.dll
  • <SYSTEM32>\mfc140u.dll
  • <SYSTEM32>\mfcm100.dll
  • <SYSTEM32>\mfcm100u.dll
  • <SYSTEM32>\mfcm110.dll
  • <SYSTEM32>\mfcm110u.dll
  • <SYSTEM32>\mfcm120u.dll
  • <SYSTEM32>\msvcp100d.dll
  • <SYSTEM32>\mfcm140.dll
  • <SYSTEM32>\mfcm140u.dll
  • <SYSTEM32>\migwiz.lnk
  • <SYSTEM32>\mpsigstub.exe
  • <SYSTEM32>\msclmd.dll
  • <SYSTEM32>\msvcm90d.dll
  • <SYSTEM32>\msvcp100.dll
  • <SYSTEM32>\msvcp110.dll
  • <SYSTEM32>\noise.chs
  • <SYSTEM32>\noise.cht
  • <SYSTEM32>\noise.dat
  • <SYSTEM32>\vcomp100.dll
  • <SYSTEM32>\vcomp110.dll
  • <SYSTEM32>\vcomp120.dll
  • <SYSTEM32>\vcomp140.dll
  • <SYSTEM32>\vcruntime140.dll
  • <SYSTEM32>\vcruntime140d.dll
  • <SYSTEM32>\vccorlib140.dll
  • <SYSTEM32>\vccorlib140d.dll
  • <SYSTEM32>\vcruntime140_1.dll
  • <SYSTEM32>\vmbuspipe.dll
  • <SYSTEM32>\vmbusres.dll
  • <SYSTEM32>\vmdcoinstall.dll
  • <SYSTEM32>\vmicres.dll
  • <SYSTEM32>\vmicsvc.exe
  • <SYSTEM32>\vmictimeprovider.dll
  • <SYSTEM32>\ven2232.olb
  • <SYSTEM32>\vmbuscoinstaller.dll
  • <SYSTEM32>\vccorlib120d.dll
  • <SYSTEM32>\vccorlib120.dll
  • <SYSTEM32>\vccorlib110d.dll
  • <SYSTEM32>\noise.tha
  • <SYSTEM32>\perfc009.dat
  • <SYSTEM32>\perfd009.dat
  • <SYSTEM32>\perfh009.dat
  • <SYSTEM32>\perfi009.dat
  • <SYSTEM32>\perfstringbackup.ini
  • <SYSTEM32>\streamci.dll
  • <SYSTEM32>\noise.kor
  • <SYSTEM32>\ticrf.rat
  • <SYSTEM32>\umstartup.etl
  • <SYSTEM32>\umstartup000.etl
  • <SYSTEM32>\vbame.dll
  • <SYSTEM32>\vcamp110.dll
  • <SYSTEM32>\vcamp120.dll
  • <SYSTEM32>\vcamp140.dll
  • <SYSTEM32>\vccorlib110.dll
  • <SYSTEM32>\ucrtbased.dll
  • <SYSTEM32>\mfc140jpn.dll
  • <SYSTEM32>\vmstorfltres.dll
  • <SYSTEM32>\mfc140ita.dll
  • <SYSTEM32>\mfc140esn.dll
  • <SYSTEM32>\concrt140d.dll
  • <SYSTEM32>\desktop.ini
  • <SYSTEM32>\dll64.dll
  • <SYSTEM32>\dmvscres.dll
  • <SYSTEM32>\dssec.dat
  • <SYSTEM32>\fm20.dll
  • <SYSTEM32>\fm20enu.dll
  • <SYSTEM32>\iccoinstall.dll
  • <SYSTEM32>\mfc100.dll
  • <SYSTEM32>\icrav03.rat
  • <SYSTEM32>\installpackage_etw.log
  • <SYSTEM32>\iscsilog.dll
  • <SYSTEM32>\korwbrkr.lex
  • <SYSTEM32>\license.rtf
  • <SYSTEM32>\localgroupadminadd.log
  • <SYSTEM32>\local_llu.log
  • <SYSTEM32>\concrt140.dll
  • <SYSTEM32>\fntcache.dat
  • <SYSTEM32>\circoinst.dll
  • %WINDIR%\setuperr.log
  • %WINDIR%\dtcinstall.log
  • %WINDIR%\enterprise.xml
  • %WINDIR%\msdfmap.ini
  • %WINDIR%\ocsetup_cbs_uninstall_searchengine-client-package.txt
  • %WINDIR%\ocsetup_uninstall_searchengine-client-package.etl
  • %WINDIR%\pfro.log
  • %WINDIR%\setupact.log
  • %WINDIR%\starter.xml
  • <SYSTEM32>\atl110.dll
  • %WINDIR%\system.ini
  • %WINDIR%\tssysprep.log
  • %WINDIR%\win.ini
  • %WINDIR%\windowsshell.manifest
  • %WINDIR%\windowsupdate.log
  • <SYSTEM32>\aspnet_counters.dll
  • <SYSTEM32>\atl100.dll
  • <SYSTEM32>\brcoinst.dll
  • <SYSTEM32>\mfc100chs.dll
  • <SYSTEM32>\mfc100cht.dll
  • <SYSTEM32>\mfc100deu.dll
  • <SYSTEM32>\mfc120cht.dll
  • <SYSTEM32>\mfc120deu.dll
  • <SYSTEM32>\mfc120enu.dll
  • <SYSTEM32>\mfc120esn.dll
  • <SYSTEM32>\mfc120fra.dll
  • <SYSTEM32>\mfc120ita.dll
  • <SYSTEM32>\mfc120.dll
  • <SYSTEM32>\mfc120chs.dll
  • <SYSTEM32>\mfc120jpn.dll
  • <SYSTEM32>\mfc120u.dll
  • <SYSTEM32>\mfc140.dll
  • <SYSTEM32>\mfc140chs.dll
  • <SYSTEM32>\mfc140cht.dll
  • <SYSTEM32>\mfc140deu.dll
  • <SYSTEM32>\mfc140enu.dll
  • <SYSTEM32>\mfc120kor.dll
  • <SYSTEM32>\mfc120rus.dll
  • <SYSTEM32>\mfc110u.dll
  • <SYSTEM32>\mfc110rus.dll
  • <SYSTEM32>\mfc110kor.dll
  • <SYSTEM32>\mfc100esn.dll
  • <SYSTEM32>\mfc100fra.dll
  • <SYSTEM32>\mfc100ita.dll
  • <SYSTEM32>\mfc100jpn.dll
  • <SYSTEM32>\mfc100kor.dll
  • <SYSTEM32>\mfc100rus.dll
  • <SYSTEM32>\mfc100u.dll
  • <SYSTEM32>\mfc100enu.dll
  • <SYSTEM32>\mfc110.dll
  • <SYSTEM32>\mfc110cht.dll
  • <SYSTEM32>\mfc110deu.dll
  • <SYSTEM32>\mfc110enu.dll
  • <SYSTEM32>\mfc110esn.dll
  • <SYSTEM32>\mfc110fra.dll
  • <SYSTEM32>\mfc110ita.dll
  • <SYSTEM32>\mfc110jpn.dll
  • <SYSTEM32>\mfc110chs.dll
  • <SYSTEM32>\mfc140fra.dll
  • <SYSTEM32>\windowsaccessbridge-64.dll
Changes user data files extensions (Trojan.Encoder).
Miscellaneous
Executes the following
  • '<SYSTEM32>\cmd.exe' /k takeown /f <SYSTEM32> && icacls <SYSTEM32> /grant "%username%:F"
  • '<SYSTEM32>\takeown.exe' /f <SYSTEM32>
  • '<SYSTEM32>\icacls.exe' <SYSTEM32> /grant "user:F"
  • '<SYSTEM32>\cmd.exe' /k takeown /f <SYSTEM32> && icacls <SYSTEM32> /grant "%username%:F"' (with hidden window)

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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);
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