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Trojan.Encoder.37966

Added to the Dr.Web virus database: 2023-09-14

Virus description added:

Technical Information

Malicious functions
Reads files which store third party applications passwords
  • %HOMEPATH%\desktop\applicantform_en.doc
  • %HOMEPATH%\desktop\thlps_keeper_mayer_1965.docx
  • %HOMEPATH%\desktop\testcertificate.cer
  • %HOMEPATH%\desktop\sdksampleunprivdeveloper.cer
  • %HOMEPATH%\desktop\ovp25012015.doc
  • %HOMEPATH%\desktop\nwfieldnotes1966.docx
  • %HOMEPATH%\desktop\ituneshelpunavailable.html
  • %HOMEPATH%\desktop\iisstart.html
  • %HOMEPATH%\desktop\iisstart.htm
  • %HOMEPATH%\desktop\hanni_umami_chapter.doc
  • %HOMEPATH%\desktop\hadac_newsletter_july_2010_final.docx
  • %HOMEPATH%\desktop\dialmap.bmp
  • %HOMEPATH%\desktop\delete.avi
  • %HOMEPATH%\desktop\browse.html
  • %HOMEPATH%\desktop\browse.htm
  • %HOMEPATH%\desktop\archer.avi
  • %HOMEPATH%\desktop\tree_view.htm
  • %HOMEPATH%\desktop\uep_form_786_bulletin_1726i602.doc
Modifies file system
Creates the following files
  • %TEMP%\e30e.tmp\e30f.tmp\e310.bat
  • %HOMEPATH%\saved games\dotnetzip-jdy3hx4u.tmp
  • %HOMEPATH%\searches\dotnetzip-11dyu403.tmp
  • %HOMEPATH%\searches\dotnetzip-lxrns0b0.tmp
  • %HOMEPATH%\searches\dotnetzip-p0elyqzj.tmp
  • %HOMEPATH%\videos\dotnetzip-erbczucf.tmp
  • %HOMEPATH%\desktop\dotnetzip-dv3olkhi.tmp
  • %HOMEPATH%\desktop\dotnetzip-phh4chgr.tmp
  • %HOMEPATH%\desktop\dotnetzip-tguzgpuw.tmp
  • %HOMEPATH%\desktop\dotnetzip-b1wjsbsm.tmp
  • %HOMEPATH%\desktop\dotnetzip-gzj5zakw.tmp
  • %HOMEPATH%\desktop\dotnetzip-sz2dwrnu.tmp
  • %HOMEPATH%\desktop\dotnetzip-tkenr0hf.tmp
  • %HOMEPATH%\desktop\dotnetzip-m503dpuf.tmp
  • %HOMEPATH%\desktop\dotnetzip-nxg1rdks.tmp
  • %HOMEPATH%\desktop\dotnetzip-ezrzpp4u.tmp
  • %HOMEPATH%\desktop\dotnetzip-b3xtcoai.tmp
  • %HOMEPATH%\desktop\dotnetzip-ucqabhgq.tmp
  • %HOMEPATH%\desktop\dotnetzip-z2t5vui1.tmp
  • %HOMEPATH%\desktop\dotnetzip-qtccb12p.tmp
  • %HOMEPATH%\desktop\dotnetzip-arqyvops.tmp
  • %HOMEPATH%\desktop\dotnetzip-hz2zzvur.tmp
  • %HOMEPATH%\desktop\dotnetzip-0mepqiou.tmp
  • %HOMEPATH%\desktop\dotnetzip-tfq5zudk.tmp
  • %HOMEPATH%\desktop\dotnetzip-xw01e5jk.tmp
  • %HOMEPATH%\desktop\dotnetzip-yincypnx.tmp
  • %HOMEPATH%\desktop\dotnetzip-jqzrytr0.tmp
  • %HOMEPATH%\desktop\dotnetzip-goencotq.tmp
  • %HOMEPATH%\desktop\dotnetzip-ramuu2i2.tmp
  • %HOMEPATH%\pictures\dotnetzip-ixhrj3ci.tmp
  • %HOMEPATH%\desktop\dotnetzip-xifvxrlq.tmp
  • %HOMEPATH%\music\dotnetzip-furqgkr3.tmp
  • %HOMEPATH%\favorites\microsoft websites\dotnetzip-tkkxnor5.tmp
  • <Current directory>\dotnetzip.dll
  • <Current directory>\enmegacoder.exe
  • %HOMEPATH%\contacts\dotnetzip-uxd5ighp.tmp
  • %HOMEPATH%\contacts\dotnetzip-jnpigzsi.tmp
  • %HOMEPATH%\downloads\dotnetzip-1sjlagba.tmp
  • %HOMEPATH%\favorites\dotnetzip-jowzpigr.tmp
  • %HOMEPATH%\favorites\links\dotnetzip-whrtrjkp.tmp
  • %HOMEPATH%\favorites\links\dotnetzip-sacahnhg.tmp
  • %HOMEPATH%\favorites\links for united states\dotnetzip-3hy3f5t2.tmp
  • %HOMEPATH%\favorites\links for united states\dotnetzip-mafpaft1.tmp
  • %HOMEPATH%\favorites\links for united states\dotnetzip-tfxmdbz0.tmp
  • %HOMEPATH%\favorites\microsoft websites\dotnetzip-ytctdyx4.tmp
  • %HOMEPATH%\favorites\microsoft websites\dotnetzip-h4m4pdpd.tmp
  • %HOMEPATH%\favorites\microsoft websites\dotnetzip-4cfj3u44.tmp
  • %HOMEPATH%\links\dotnetzip-ri3b3ayf.tmp
  • %HOMEPATH%\favorites\microsoft websites\dotnetzip-3c3lkyzv.tmp
  • %HOMEPATH%\favorites\msn websites\dotnetzip-qsaxxhfv.tmp
  • %HOMEPATH%\favorites\msn websites\dotnetzip-thi3ihtz.tmp
  • %HOMEPATH%\favorites\msn websites\dotnetzip-gvgagxcn.tmp
  • %HOMEPATH%\favorites\msn websites\dotnetzip-vd0sff1c.tmp
  • %HOMEPATH%\favorites\msn websites\dotnetzip-13cnpbj2.tmp
  • %HOMEPATH%\favorites\msn websites\dotnetzip-eazemn3h.tmp
  • %HOMEPATH%\favorites\windows live\dotnetzip-ncak0nfc.tmp
  • %HOMEPATH%\favorites\windows live\dotnetzip-j31j3ksl.tmp
  • %HOMEPATH%\favorites\windows live\dotnetzip-tcj12wxm.tmp
  • %HOMEPATH%\favorites\windows live\dotnetzip-tdyaxpzl.tmp
  • %HOMEPATH%\links\dotnetzip-34y0jgqo.tmp
  • %HOMEPATH%\links\dotnetzip-ba41np0j.tmp
  • %HOMEPATH%\links\dotnetzip-gr2e5t2x.tmp
  • %HOMEPATH%\desktop\readme.txt
Moves the following files
  • from %HOMEPATH%\contacts\dotnetzip-uxd5ighp.tmp to %HOMEPATH%\contacts\desktop.ini.enmega
  • from %HOMEPATH%\links\dotnetzip-ri3b3ayf.tmp to %HOMEPATH%\links\downloads.lnk.enmega
  • from %HOMEPATH%\links\dotnetzip-gr2e5t2x.tmp to %HOMEPATH%\links\recentplaces.lnk.enmega
  • from %HOMEPATH%\music\dotnetzip-furqgkr3.tmp to %HOMEPATH%\music\desktop.ini.enmega
  • from %HOMEPATH%\pictures\dotnetzip-ixhrj3ci.tmp to %HOMEPATH%\pictures\desktop.ini.enmega
  • from %HOMEPATH%\saved games\dotnetzip-jdy3hx4u.tmp to %HOMEPATH%\saved games\desktop.ini.enmega
  • from %HOMEPATH%\searches\dotnetzip-11dyu403.tmp to %HOMEPATH%\searches\desktop.ini.enmega
  • from %HOMEPATH%\searches\dotnetzip-lxrns0b0.tmp to %HOMEPATH%\searches\everywhere.search-ms.enmega
  • from %HOMEPATH%\searches\dotnetzip-p0elyqzj.tmp to %HOMEPATH%\searches\indexed locations.search-ms.enmega
  • from %HOMEPATH%\favorites\microsoft websites\dotnetzip-tkkxnor5.tmp to %HOMEPATH%\favorites\microsoft websites\microsoft at home.url.enmega
  • from %HOMEPATH%\videos\dotnetzip-erbczucf.tmp to %HOMEPATH%\videos\desktop.ini.enmega
  • from %HOMEPATH%\desktop\dotnetzip-phh4chgr.tmp to %HOMEPATH%\desktop\archer.avi.enmega
  • from %HOMEPATH%\desktop\dotnetzip-tguzgpuw.tmp to %HOMEPATH%\desktop\browse.htm.enmega
  • from %HOMEPATH%\desktop\dotnetzip-b1wjsbsm.tmp to %HOMEPATH%\desktop\browse.html.enmega
  • from %HOMEPATH%\desktop\dotnetzip-gzj5zakw.tmp to %HOMEPATH%\desktop\delete.avi.enmega
  • from %HOMEPATH%\desktop\dotnetzip-sz2dwrnu.tmp to %HOMEPATH%\desktop\desktop.ini.enmega
  • from %HOMEPATH%\desktop\dotnetzip-m503dpuf.tmp to %HOMEPATH%\desktop\dotnetfx45_full_setup.exe.enmega
  • from %HOMEPATH%\desktop\dotnetzip-xifvxrlq.tmp to %HOMEPATH%\desktop\google chrome.lnk.enmega
  • from %HOMEPATH%\desktop\dotnetzip-arqyvops.tmp to %HOMEPATH%\desktop\jre-7u75-windows-i586-iftw.exe.enmega
  • from %HOMEPATH%\links\dotnetzip-34y0jgqo.tmp to %HOMEPATH%\links\desktop.ini.enmega
  • from %HOMEPATH%\links\dotnetzip-ba41np0j.tmp to %HOMEPATH%\links\desktop.lnk.enmega
  • from %HOMEPATH%\favorites\windows live\dotnetzip-tdyaxpzl.tmp to %HOMEPATH%\favorites\windows live\windows live spaces.url.enmega
  • from %HOMEPATH%\favorites\windows live\dotnetzip-tcj12wxm.tmp to %HOMEPATH%\favorites\windows live\windows live mail.url.enmega
  • from %HOMEPATH%\favorites\windows live\dotnetzip-j31j3ksl.tmp to %HOMEPATH%\favorites\windows live\windows live gallery.url.enmega
  • from %HOMEPATH%\downloads\dotnetzip-1sjlagba.tmp to %HOMEPATH%\downloads\desktop.ini.enmega
  • from %HOMEPATH%\favorites\dotnetzip-jowzpigr.tmp to %HOMEPATH%\favorites\desktop.ini.enmega
  • from %HOMEPATH%\favorites\links\dotnetzip-whrtrjkp.tmp to %HOMEPATH%\favorites\links\desktop.ini.enmega
  • from %HOMEPATH%\favorites\links\dotnetzip-sacahnhg.tmp to %HOMEPATH%\favorites\links\web slice gallery.url.enmega
  • from %HOMEPATH%\favorites\links for united states\dotnetzip-3hy3f5t2.tmp to %HOMEPATH%\favorites\links for united states\desktop.ini.enmega
  • from %HOMEPATH%\favorites\links for united states\dotnetzip-mafpaft1.tmp to %HOMEPATH%\favorites\links for united states\gobiernousa.gov.url.enmega
  • from %HOMEPATH%\favorites\links for united states\dotnetzip-tfxmdbz0.tmp to %HOMEPATH%\favorites\links for united states\usa.gov.url.enmega
  • from %HOMEPATH%\favorites\microsoft websites\dotnetzip-ytctdyx4.tmp to %HOMEPATH%\favorites\microsoft websites\ie add-on site.url.enmega
  • from %HOMEPATH%\desktop\dotnetzip-xw01e5jk.tmp to %HOMEPATH%\desktop\telegram.lnk.enmega
  • from %HOMEPATH%\desktop\dotnetzip-dv3olkhi.tmp to %HOMEPATH%\desktop\applicantform_en.doc.enmega
  • from %HOMEPATH%\favorites\microsoft websites\dotnetzip-h4m4pdpd.tmp to %HOMEPATH%\favorites\microsoft websites\ie site on microsoft.com.url.enmega
  • from %HOMEPATH%\favorites\microsoft websites\dotnetzip-3c3lkyzv.tmp to %HOMEPATH%\favorites\microsoft websites\microsoft store.url.enmega
  • from %HOMEPATH%\favorites\msn websites\dotnetzip-qsaxxhfv.tmp to %HOMEPATH%\favorites\msn websites\msn autos.url.enmega
  • from %HOMEPATH%\favorites\msn websites\dotnetzip-thi3ihtz.tmp to %HOMEPATH%\favorites\msn websites\msn entertainment.url.enmega
  • from %HOMEPATH%\favorites\msn websites\dotnetzip-gvgagxcn.tmp to %HOMEPATH%\favorites\msn websites\msn money.url.enmega
  • from %HOMEPATH%\favorites\msn websites\dotnetzip-vd0sff1c.tmp to %HOMEPATH%\favorites\msn websites\msn sports.url.enmega
  • from %HOMEPATH%\favorites\msn websites\dotnetzip-13cnpbj2.tmp to %HOMEPATH%\favorites\msn websites\msn.url.enmega
  • from %HOMEPATH%\favorites\msn websites\dotnetzip-eazemn3h.tmp to %HOMEPATH%\favorites\msn websites\msnbc news.url.enmega
  • from %HOMEPATH%\favorites\windows live\dotnetzip-ncak0nfc.tmp to %HOMEPATH%\favorites\windows live\get windows live.url.enmega
  • from %HOMEPATH%\contacts\dotnetzip-jnpigzsi.tmp to %HOMEPATH%\contacts\user.contact.enmega
  • from %HOMEPATH%\favorites\microsoft websites\dotnetzip-4cfj3u44.tmp to %HOMEPATH%\favorites\microsoft websites\microsoft at work.url.enmega
  • from %HOMEPATH%\desktop\dotnetzip-ezrzpp4u.tmp to %HOMEPATH%\desktop\utorrent.exe.enmega
Changes user data files extensions (Trojan.Encoder).
Miscellaneous
Creates and executes the following
  • '<Current directory>\enmegacoder.exe'
  • '<SYSTEM32>\cmd.exe' /c "%TEMP%\E30E.tmp\E30F.tmp\E310.bat <Full path to file>"' (with hidden window)
Executes the following
  • '<SYSTEM32>\cmd.exe' /c "%TEMP%\E30E.tmp\E30F.tmp\E310.bat <Full path to file>"
  • '%WINDIR%\notepad.exe' %HOMEPATH%\Desktop\README.TXT

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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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