JavaScript support is required for our site to be fully operational in your browser.
Trojan.Encoder.37839
Added to the Dr.Web virus database:
2023-08-15
Virus description added:
2024-03-29
Technical Information
To ensure autorun and distribution
Creates the following files on removable media
<Drive name for removable media>:\how to restore your files.txt
<Drive name for removable media>:\middaugh_keynote.pptx
<Drive name for removable media>:\waterresourcesag.pptx
<Drive name for removable media>:\sdksampleprivdeveloper.cer
<Drive name for removable media>:\testcertificate.cer
<Drive name for removable media>:\contoso.cer
<Drive name for removable media>:\sdksampleunprivdeveloper.cer
<Drive name for removable media>:\contoso_1.cer
<Drive name for removable media>:\sdkfailsafeemulator.cer
<Drive name for removable media>:\stoc13_ml_quoc_le.pptx
<Drive name for removable media>:\dashborder_192.bmp
<Drive name for removable media>:\dialmap.bmp
<Drive name for removable media>:\dial.bmp
<Drive name for removable media>:\dashborder_120.bmp
<Drive name for removable media>:\default.bmp
<Drive name for removable media>:\join.avi
<Drive name for removable media>:\split.avi
<Drive name for removable media>:\000814251_video_01.avi
<Drive name for removable media>:\delete.avi
<Drive name for removable media>:\toolbar.bmp
<Drive name for removable media>:\indogerman2010.pptx
Malicious functions
Injects code into
the following system processes:
%WINDIR%\syswow64\cmd.exe
the following user processes:
Terminates or attempts to terminate
the following user processes:
Reads files which store third party applications passwords
%HOMEPATH%\desktop\aoc_saq_d_v3_merchant.docx
%HOMEPATH%\desktop\testee.cer
%HOMEPATH%\desktop\sdkfailsafeemulator.cer
%HOMEPATH%\desktop\testcertificate.cer
%HOMEPATH%\desktop\ovp25012015.doc
%HOMEPATH%\desktop\nwfieldnotes1966.docx
%HOMEPATH%\desktop\hadac_newsletter_july_2010_final.docx
%HOMEPATH%\desktop\dialmap.bmp
%HOMEPATH%\desktop\delete.avi
%HOMEPATH%\desktop\contoso_1.cer
%HOMEPATH%\desktop\contosoroot_1.cer
%HOMEPATH%\desktop\contoso.cer
%HOMEPATH%\desktop\contosoroot.cer
%HOMEPATH%\desktop\coffee.bmp
%HOMEPATH%\desktop\archer.avi
%HOMEPATH%\desktop\000814251_video_01.avi
%HOMEPATH%\desktop\tree_view.htm
%HOMEPATH%\desktop\thlps_keeper_mayer_1965.docx
Modifies file system
Creates the following files
%APPDATA%\srlazyzpebrujiumwlh\szifjqxnbaplglrnpd
%HOMEPATH%\videos\how to restore your files.txt
%HOMEPATH%\searches\how to restore your files.txt
%HOMEPATH%\saved games\how to restore your files.txt
%HOMEPATH%\pictures\how to restore your files.txt
%HOMEPATH%\onedrive\how to restore your files.txt
%HOMEPATH%\music\how to restore your files.txt
%HOMEPATH%\links\how to restore your files.txt
%HOMEPATH%\favorites\how to restore your files.txt
%HOMEPATH%\downloads\how to restore your files.txt
%HOMEPATH%\documents\how to restore your files.txt
%HOMEPATH%\desktop\how to restore your files.txt
%HOMEPATH%\favorites\links\how to restore your files.txt
%HOMEPATH%\contacts\how to restore your files.txt
%HOMEPATH%\.oracle_jre_usage\how to restore your files.txt
%HOMEPATH%\how to restore your files.txt
C:\users\how to restore your files.txt
C:\recovery\how to restore your files.txt
<Current directory>\how to restore your files.txt
C:\kms\how to restore your files.txt
C:\how to restore your files.txt
D:\how to restore your files.txt
%TEMP%\paublpsavm
%TEMP%\mfc140u.exe
%TEMP%\79d2a065
%HOMEPATH%\3d objects\how to restore your files.txt
%HOMEPATH%\pictures\camera roll\how to restore your files.txt
Modifies the following files
D:\install.log
%HOMEPATH%\3d objects\desktop.ini
%HOMEPATH%\.oracle_jre_usage\90737d32e3aba6b.timestamp
<Drive name for removable media>:\indogerman2010.pptx
<Drive name for removable media>:\stoc13_ml_quoc_le.pptx
<Drive name for removable media>:\middaugh_keynote.pptx
<Drive name for removable media>:\waterresourcesag.pptx
<Drive name for removable media>:\sdksampleprivdeveloper.cer
<Drive name for removable media>:\testcertificate.cer
<Drive name for removable media>:\contoso.cer
<Drive name for removable media>:\sdksampleunprivdeveloper.cer
<Drive name for removable media>:\contoso_1.cer
%HOMEPATH%\contacts\desktop.ini
<Drive name for removable media>:\sdkfailsafeemulator.cer
<Drive name for removable media>:\toolbar.bmp
<Drive name for removable media>:\dialmap.bmp
<Drive name for removable media>:\dial.bmp
<Drive name for removable media>:\dashborder_120.bmp
<Drive name for removable media>:\default.bmp
<Drive name for removable media>:\join.avi
<Drive name for removable media>:\split.avi
<Drive name for removable media>:\000814251_video_01.avi
<Drive name for removable media>:\delete.avi
C:\kms\kms_vl_all_aio_debug.log
C:\users\desktop.ini
<Drive name for removable media>:\dashborder_192.bmp
%HOMEPATH%\desktop\desktop.ini
Modifies multiple files.
Substitutes the following files
%ALLUSERSPROFILE%\Microsoft\Search\Data\Applications\Windows\edb.jtx
%ALLUSERSPROFILE%\Microsoft\Search\Data\Applications\Windows\edbtmp.jtx
Modifies user data files (Trojan.Encoder).
Changes user data files extensions (Trojan.Encoder).
Network activity
Connects to
TCP
HTTP GET requests
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/CABD2A79A1076A31F21D253635CB039D4329A5E8.crt?bb##############
Other
'do#.org':443
'i.##b.co':443
UDP
DNS ASK do#.org
DNS ASK i.##b.co
Miscellaneous
Creates and executes the following
Executes the following
'%WINDIR%\syswow64\cmd.exe'
'<SYSTEM32>\searchprotocolhost.exe' Global\UsGthrFltPipeMssGthrPipe3_ Global\UsGthrCtrlFltPipeMssGthrPipe3 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "%...
'<SYSTEM32>\searchfilterhost.exe' 0 764 772 780 8192 776
'<SYSTEM32>\svchost.exe' -k wsappx -p
Curing recommendations
Windows
macOS
Linux
Android
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 .
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.
Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.
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.
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
このウェブサイトを継続して訪問する場合、訪問者に関する統計データを収集するためのCookieファイルおよび他のテクノロジーを弊社が利用することに同意したものとします。詳細
OK