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Trojan.Encoder.38833
Added to the Dr.Web virus database:
2024-04-22
Virus description added:
2024-04-23
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>:\system volume information\how to restore your files.txt
<Drive name for removable media>:\system volume information\wpsettings.dat.babyk
<Drive name for removable media>:\gruenspecht_02172016.pptx
<Drive name for removable media>:\waterresourcesag.pptx
<Drive name for removable media>:\iso27k_isms_implementation_and_certification_process_overview_v2.pptx
<Drive name for removable media>:\middaugh_keynote.pptx
<Drive name for removable media>:\roozenedowebinar.pptx
Malicious functions
To complicate detection of its presence in the operating system,
deletes volume shadow copies.
Terminates or attempts to terminate
the following user processes:
Searches for windows to
detect analytical utilities:
ClassName: 'OLLYDBG', WindowName: ''
ClassName: 'GBDYLLO', WindowName: ''
ClassName: 'pediy06', WindowName: ''
ClassName: 'FilemonClass', WindowName: ''
ClassName: '', WindowName: 'File Monitor - Sysinternals: www.sysinternals.com'
ClassName: 'PROCMON_WINDOW_CLASS', WindowName: ''
ClassName: '', WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
ClassName: 'RegmonClass', WindowName: ''
ClassName: '', WindowName: 'Registry Monitor - Sysinternals: www.sysinternals.com'
Modifies file system
Creates the following files
C:\how to restore your files.txt
C:\users\public\music\how to restore your files.txt
%HOMEPATH%\.oracle_jre_usage\how to restore your files.txt
%HOMEPATH%\3d objects\how to restore your files.txt
%HOMEPATH%\application data\how to restore your files.txt
%HOMEPATH%\contacts\how to restore your files.txt
%HOMEPATH%\cookies\how to restore your files.txt
C:\users\public\desktop\how to restore your files.txt
%HOMEPATH%\documents\how to restore your files.txt
%HOMEPATH%\documents\my music\how to restore your files.txt
%HOMEPATH%\desktop\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%\favorites\how to restore your files.txt
C:\users\default\downloads\how to restore your files.txt
%HOMEPATH%\local settings\how to restore your files.txt
%HOMEPATH%\nethood\how to restore your files.txt
%HOMEPATH%\downloads\how to restore your files.txt
%HOMEPATH%\onedrive\how to restore your files.txt
%HOMEPATH%\favorites\links\how to restore your files.txt
%HOMEPATH%\pictures\camera roll\how to restore your files.txt
%HOMEPATH%\recent\how to restore your files.txt
%HOMEPATH%\saved games\how to restore your files.txt
%HOMEPATH%\printhood\how to restore your files.txt
%HOMEPATH%\start menu\how to restore your files.txt
%HOMEPATH%\templates\how to restore your files.txt
%HOMEPATH%\searches\how to restore your files.txt
%HOMEPATH%\sendto\how to restore your files.txt
D:\how to restore your files.txt
C:\users\public\libraries\how to restore your files.txt
%HOMEPATH%\how to restore your files.txt
C:\users\public\downloads\how to restore your files.txt
C:\users\public\documents\how to restore your files.txt
C:\users\public\documents\my videos\how to restore your files.txt
<Current directory>\how to restore your files.txt
C:\kms\how to restore your files.txt
C:\msocache\how to restore your files.txt
C:\perflogs\how to restore your files.txt
C:\recovery\how to restore your files.txt
C:\recovery\windowsre\how to restore your files.txt
C:\users\default\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:\users\default\documents\my pictures\how to restore your files.txt
m:\how to restore your files.txt
%HOMEPATH%\links\how to restore your files.txt
C:\users\default\documents\my videos\how to restore your files.txt
m:\system volume information\wpsettings.dat
C:\users\default\links\how to restore your files.txt
C:\users\default\local settings\how to restore your files.txt
C:\users\default\nethood\how to restore your files.txt
C:\users\default\printhood\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\sendto\how to restore your files.txt
C:\users\default\start menu\how to restore your files.txt
C:\users\default\templates\how to restore your files.txt
C:\users\public\how to restore your files.txt
C:\users\public\accountpictures\how to restore your files.txt
C:\users\public\documents\my pictures\how to restore your files.txt
C:\documents and settings\how to restore your files.txt
C:\users\default\favorites\how to restore your files.txt
m:\bootnxt.babyk
Modifies the following files
C:\kms\kms_vl_all_aio.cmd.babyk
C:\users\public\desktop\firefox.lnk.babyk
%HOMEPATH%\desktop\telegram.lnk.babyk
%HOMEPATH%\desktop\microsoft edge.lnk.babyk
C:\users\public\desktop\acrobat reader dc.lnk.babyk
C:\users\public\desktop\mozilla thunderbird.lnk.babyk
%HOMEPATH%\desktop\210252809.jpeg.babyk
%HOMEPATH%\desktop\210252809.jpg.babyk
%HOMEPATH%\desktop\168.jpeg.babyk
C:\users\public\desktop\opera.lnk.babyk
C:\users\public\desktop\steam.lnk.babyk
C:\users\public\libraries\recordedtv.library-ms.babyk
%HOMEPATH%\desktop\google chrome.lnk.babyk
%HOMEPATH%\.oracle_jre_usage\90737d32e3aba6b.timestamp.babyk
C:\users\default\ntuser.dat{fd9a35db-49fe-11e9-aa2c-248a07783950}.tmcontainer00000000000000000002.regtrans-ms.babyk
C:\users\default\ntuser.dat{2d8c3f0b-3f9b-11ed-9ead-0800278e6e63}.tm.blf.babyk
C:\users\default\ntuser.dat.log2.babyk
C:\users\default\ntuser.dat{fd9a35db-49fe-11e9-aa2c-248a07783950}.tm.blf.babyk
C:\users\default\ntuser.dat{fd9a35db-49fe-11e9-aa2c-248a07783950}.tmcontainer00000000000000000001.regtrans-ms.babyk
C:\users\default\ntuser.dat{2d8c3f0b-3f9b-11ed-9ead-0800278e6e63}.tmcontainer00000000000000000002.regtrans-ms.babyk
C:\users\default\ntuser.dat{2d8c3f0b-3f9b-11ed-9ead-0800278e6e63}.tmcontainer00000000000000000001.regtrans-ms.babyk
C:\users\default\ntuser.dat.log1.babyk
C:\recovery\windowsre\reagent.xml.babyk
C:\recovery\windowsre\boot.sdi.babyk
C:\kms\kms_vl_all_aio_debug.log.babyk
C:\recovery\windowsre\winre.wim.babyk
%HOMEPATH%\links\desktop.lnk.babyk
Modifies multiple files.
Changes user data files extensions (Trojan.Encoder).
Miscellaneous
Searches for the following windows
ClassName: 'OleMainThreadWndClass' WindowName: ''
ClassName: '18467-41' WindowName: ''
Creates and executes the following
'<SYSTEM32>\cmd.exe' /c vssadmin.exe delete shadows /all /quiet' (with hidden window)
Executes the following
'<SYSTEM32>\cmd.exe' /c vssadmin.exe delete shadows /all /quiet
Recommandations pour le traitement
Windows
macOS
Linux
Android
Si le système d'exploitation peut être démarré (en mode normal ou en mode sans échec), téléchargez Dr.Web Security Space et lancez un scan complet de votre ordinateur et de tous les supports amovibles que vous utilisez. En savoir plus sur Dr.Web Security Space .
Si le démarrage du système d'exploitation est impossible, veuillez modifier les paramètres du BIOS de votre ordinateur pour démarrer votre ordinateur via CD/DVD ou clé USB. Téléchargez l'image du disque de secours de restauration du système Dr.Web® LiveDisk ou l'utilitaire pour enregistrer Dr.Web® LiveDisk sur une clé USB, puis préparez la clé USB appropriée. Démarrez l'ordinateur à l'aide de cette clé et lancez le scan complet et le traitement des menaces détectées.
Si votre appareil mobile fonctionne correctement, veuillez télécharger et installer sur votre appareil mobile Dr.Web pour Android . Lancez un scan complet et suivez les recommandations sur la neutralisation des menaces détectées.
Si l'appareil mobile est bloqué par le Trojan de la famille Android.Locker (un message sur la violation grave de la loi ou la demande d'une rançon est affiché sur l'écran de l'appareil mobile), procédez comme suit:
démarrez votre Smartphone ou votre tablette en mode sans échec (si vous ne savez pas comment faire, consultez la documentation de l'appareil mobile ou contactez le fabricant) ;
puis téléchargez et installez sur votre appareil mobile Dr.Web pour Android et lancez un scan complet puis suivez les recommandations sur la neutralisation des menaces détectées ;
Débranchez votre appareil et rebranchez-le.
En savoir plus sur Dr.Web pour Android
Téléchargez Dr.Web pour Android
Gratuit pour 3 mois
Tous les composants de protection
Renouvellement de la démo via AppGallery/Google Pay
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