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Profil

Trojan.Encoder.35224

Added to the Dr.Web virus database: 2022-04-14

Virus description added:

Technical Information

To ensure autorun and distribution
Creates the following files on removable media
  • <Drive name for removable media>:\caltpxbo.key
  • <Drive name for removable media>:\roozenedowebinar.pptx
  • <Drive name for removable media>:\waterresourcesag.pptx
  • <Drive name for removable media>:\stoc13_ml_quoc_le.pptx
  • <Drive name for removable media>:\adhd_and_obesity.docx
  • <Drive name for removable media>:\thlps_keeper_mayer_1965.docx
  • <Drive name for removable media>:\issi2013_template_for_posters.docx
  • <Drive name for removable media>:\nwfieldnotes1966.docx
  • <Drive name for removable media>:\aoc_saq_d_v3_merchant.docx
  • <Drive name for removable media>:\uep_form_786_bulletin_1726i602.doc
  • <Drive name for removable media>:\fi51.doc
  • <Drive name for removable media>:\samieee_obiee_presentation.pptx
  • <Drive name for removable media>:\weeklysheet1215.doc
  • <Drive name for removable media>:\hanni_umami_chapter.doc
  • <Drive name for removable media>:\ovp25012015.doc
  • <Drive name for removable media>:\default.bmp
  • <Drive name for removable media>:\tileimage.bmp
  • <Drive name for removable media>:\how_to_decrypt.txt
  • <Drive name for removable media>:\dashborder_96.bmp
  • <Drive name for removable media>:\dashborder_192.bmp
  • <Drive name for removable media>:\delete.avi
  • <Drive name for removable media>:\correct.avi
  • <Drive name for removable media>:\bczrsn3a.key
  • <Drive name for removable media>:\february_catalogue__2015.doc
  • <Drive name for removable media>:\hypothyroidism_slides.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:
  • firefox.exe
Modifies file system
Creates the following files
  • %TEMP%\abc.1111263934.exe
  • nul
  • C:\caltpxbo.key
  • D:\caltpxbo.key
  • C:\bczrsn3a.key
  • D:\bczrsn3a.key
  • C:\how_to_decrypt.txt
  • D:\how_to_decrypt.txt
Deletes the following files
  • %TEMP%\abc.1111263934.exe
Moves the following files
  • from %APPDATA%\winamp\demo.mp3 to %APPDATA%\winamp\demo.mp3.bczrsn3a_0reresrq97e
  • from %APPDATA%\opera software\opera stable\storage\ext\sync-login\def\quotamanager to %APPDATA%\opera software\opera stable\storage\ext\sync-login\def\quotamanager.caltpxbo_2pqamrb29vb
  • from %APPDATA%\opera software\opera stable\storage\ext\sync-login\def\gpucache\data_0 to %APPDATA%\opera software\opera stable\storage\ext\sync-login\def\gpucache\data_0.bczrsn3a_-dg4ocpbwch
  • from %APPDATA%\opera software\opera stable\storage\ext\sync-login\def\gpucache\data_1 to %APPDATA%\opera software\opera stable\storage\ext\sync-login\def\gpucache\data_1.bczrsn3a_0jcqkjlzwvl
  • from %APPDATA%\opera software\opera stable\local storage\https_www.yandex.ru_0.localstorage to %APPDATA%\opera software\opera stable\local storage\https_www.yandex.ru_0.localstorage.bczrsn3a_1hywfjv7-_v
  • from %APPDATA%\opera software\opera stable\local storage\https_www.yandex.ru_0.localstorage-journal to %APPDATA%\opera software\opera stable\local storage\https_www.yandex.ru_0.localstorage-journal.bczrsn3a_5ycnjwgbgyg
  • from %APPDATA%\opera software\opera stable\jump list iconsold\3651.tmp to %APPDATA%\opera software\opera stable\jump list iconsold\3651.tmp.bczrsn3a_5suljrjsulj
  • from %APPDATA%\opera software\opera stable\jump list iconsold\36a1.tmp to %APPDATA%\opera software\opera stable\jump list iconsold\36a1.tmp.caltpxbo_7i4rkzqufbq
  • from %APPDATA%\opera software\opera stable\jump list iconsold\36c3.tmp to %APPDATA%\opera software\opera stable\jump list iconsold\36c3.tmp.caltpxbo_6cgokahiseh
  • from %APPDATA%\opera software\opera stable\jump list iconsold\3703.tmp to %APPDATA%\opera software\opera stable\jump list iconsold\3703.tmp.bczrsn3a_7s0tlrlzwwz
  • from %APPDATA%\opera software\opera stable\jump list iconsold\3724.tmp to %APPDATA%\opera software\opera stable\jump list iconsold\3724.tmp.caltpxbo_2dnzwxawlpa
  • from %APPDATA%\opera software\opera stable\jump list iconsold\3765.tmp to %APPDATA%\opera software\opera stable\jump list iconsold\3765.tmp.caltpxbo_97e3t4aaaaa
  • from %APPDATA%\opera software\opera stable\jump list iconsold\3796.tmp to %APPDATA%\opera software\opera stable\jump list iconsold\3796.tmp.bczrsn3a_zo6ojqskpks
  • from %APPDATA%\opera software\opera stable\jump list icons\50ed.tmp to %APPDATA%\opera software\opera stable\jump list icons\50ed.tmp.bczrsn3a_3h4ehg4odg4
  • from %APPDATA%\opera software\opera stable\jump list icons\514d.tmp to %APPDATA%\opera software\opera stable\jump list icons\514d.tmp.bczrsn3a_2jiymkkpksk
  • from %APPDATA%\opera software\opera stable\jump list icons\516e.tmp to %APPDATA%\opera software\opera stable\jump list icons\516e.tmp.bczrsn3a_6cgokcioqki
  • from %APPDATA%\opera software\opera stable\jump list icons\51ce.tmp to %APPDATA%\opera software\opera stable\jump list icons\51ce.tmp.bczrsn3a_wicagiaaaaa
  • from %APPDATA%\opera software\opera stable\jump list icons\51ff.tmp to %APPDATA%\opera software\opera stable\jump list icons\51ff.tmp.caltpxbo_4cagiciiiii
  • from %APPDATA%\opera software\opera stable\jump list icons\524f.tmp to %APPDATA%\opera software\opera stable\jump list icons\524f.tmp.caltpxbo_-tk5otdw8n9
  • from %APPDATA%\opera software\opera stable\jump list icons\529f.tmp to %APPDATA%\opera software\opera stable\jump list icons\529f.tmp.bczrsn3a_3z2dnz5exl5
  • from %APPDATA%\mra\update\languages.aff to %APPDATA%\mra\update\languages.aff.bczrsn3a_xywfhaagica
  • from %APPDATA%\mra\update\languages.dict to %APPDATA%\mra\update\languages.dict.bczrsn3a_6cgopojcqkj
  • from %APPDATA%\mra\update\languages.hash to %APPDATA%\mra\update\languages.hash.caltpxbo_8tekpls7ozs
  • from %APPDATA%\mra\base\mra.dbs to %APPDATA%\mra\base\mra.dbs.caltpxbo_5ycnjyuljsu
  • from %APPDATA%\mra\base\opt.dbs to %APPDATA%\mra\base\opt.dbs.bczrsn3a_87ozs76-vr6
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\content-prefs.sqlite to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\content-prefs.sqlite.bczrsn3a_ygokchdxv1d
  • from %APPDATA%\opera software\opera stable\storage\ext\sync-login\def\cookies to %APPDATA%\opera software\opera stable\storage\ext\sync-login\def\cookies.bczrsn3a_6ysrkwslcws
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\cookies.sqlite to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\cookies.sqlite.caltpxbo_0zgrkzhywfh
  • from %APPDATA%\opera software\opera stable\web data-journal to %APPDATA%\opera software\opera stable\web data-journal.bczrsn3a_8jiygi2njy2
  • from %APPDATA%\opera software\opera stable\visited links to %APPDATA%\opera software\opera stable\visited links.caltpxbo_1f8_pyenp6e
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\blist.sqlite to %APPDATA%\thunderbird\profiles\wjj9aet2.default\blist.sqlite.bczrsn3a_0baqeatexmt
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\cookies.sqlite to %APPDATA%\thunderbird\profiles\wjj9aet2.default\cookies.sqlite.caltpxbo_0tls0vmzmzm
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\global-messages-db.sqlite to %APPDATA%\thunderbird\profiles\wjj9aet2.default\global-messages-db.sqlite.caltpxbo__7-_v7t7und
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\permissions.sqlite to %APPDATA%\thunderbird\profiles\wjj9aet2.default\permissions.sqlite.bczrsn3a_yagicclpawl
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\places.sqlite to %APPDATA%\thunderbird\profiles\wjj9aet2.default\places.sqlite.bczrsn3a_4qkioomdawm
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\prefs.js to %APPDATA%\thunderbird\profiles\wjj9aet2.default\prefs.js.bczrsn3a_9ra2tohbwch
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\webappsstore.sqlite to %APPDATA%\thunderbird\profiles\wjj9aet2.default\webappsstore.sqlite.bczrsn3a_xgygbjy8vly
  • from %APPDATA%\telegram desktop\log.txt to %APPDATA%\telegram desktop\log.txt.caltpxbo-9ra2triymji
  • from %APPDATA%\telegram desktop\tdata\90ef50e22e92cb8c0 to %APPDATA%\telegram desktop\tdata\90ef50e22e92cb8c0.caltpxbo_5awlpzwvlzw
  • from %APPDATA%\opera software\opera stable\bookmarks to %APPDATA%\opera software\opera stable\bookmarks.bczrsn3a_1zwvlbkysrk
  • from %APPDATA%\opera software\opera stable\bookmarks.bak to %APPDATA%\opera software\opera stable\bookmarks.bak.bczrsn3a_ygoqklj4-pj
  • from %APPDATA%\opera software\opera stable\bookmarksextras to %APPDATA%\opera software\opera stable\bookmarksextras.bczrsn3a_5ikjcsvr6-v
  • from %APPDATA%\opera software\opera stable\browser.js to %APPDATA%\opera software\opera stable\browser.js.bczrsn3a_3r0dhrntu1n
  • from %APPDATA%\opera software\opera stable\cookies to %APPDATA%\opera software\opera stable\cookies.caltpxbo_0rererkskqw
  • from %APPDATA%\opera software\opera stable\cookies-journal to %APPDATA%\opera software\opera stable\cookies-journal.caltpxbo_6kioql29vb2
  • from %APPDATA%\opera software\opera stable\favicons to %APPDATA%\opera software\opera stable\favicons.caltpxbo_3jycnjpt09p
  • from %APPDATA%\opera software\opera stable\favicons-journal to %APPDATA%\opera software\opera stable\favicons-journal.bczrsn3a__7-_v5cqkjc
  • from %APPDATA%\opera software\opera stable\history to %APPDATA%\opera software\opera stable\history.caltpxbo_2rkzgqmdawm
  • from %APPDATA%\opera software\opera stable\history-journal to %APPDATA%\opera software\opera stable\history-journal.bczrsn3a_-zs7owbaqeb
  • from %APPDATA%\opera software\opera stable\login data to %APPDATA%\opera software\opera stable\login data.bczrsn3a_zg4odidg4od
  • from %APPDATA%\opera software\opera stable\origin bound certs to %APPDATA%\opera software\opera stable\origin bound certs.caltpxbo_2bgdg6zs7oz
  • from %APPDATA%\opera software\opera stable\preferences to %APPDATA%\opera software\opera stable\preferences.bczrsn3a__r6-vpdq0nd
  • from %APPDATA%\opera software\opera stable\quotamanager to %APPDATA%\opera software\opera stable\quotamanager.bczrsn3a_-jo6ojdw8pd
  • from %APPDATA%\opera software\opera stable\session.db-journal to %APPDATA%\opera software\opera stable\session.db-journal.bczrsn3a_xgysrj1dxv1
  • from %APPDATA%\opera software\opera stable\session.dbak to %APPDATA%\opera software\opera stable\session.dbak.bczrsn3a__7-_v5cqkjc
  • from %APPDATA%\opera software\opera stable\web data to %APPDATA%\opera software\opera stable\web data.bczrsn3a_35-fn4uli4u
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\cookies.sqlite-shm to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\cookies.sqlite-shm.bczrsn3a_zo6ojqskpks
Modifies the following files
  • <Drive name for removable media>:\dashborder_192.bmp.caltpxbo_-jo6oja2tra
  • <Drive name for removable media>:\correct.avi.bczrsn3a_8dawmaokcgo
  • <Drive name for removable media>:\delete.avi.caltpxbo_2zmzmzubm5u
  • <Drive name for removable media>:\dashborder_96.bmp.caltpxbo_4seuli9pt09
  • <Drive name for removable media>:\tileimage.bmp.bczrsn3a_46ojo5zwvlz
  • <Drive name for removable media>:\default.bmp.bczrsn3a_4kcgtrzwvlz
  • <Drive name for removable media>:\hanni_umami_chapter.doc.caltpxbo-zawmdaufbqu
  • <Drive name for removable media>:\issi2013_template_for_posters.docx.caltpxbo--dg4oc6urps
Substitutes the following files
  • <Drive name for removable media>:\february_catalogue__2015.doc
  • <Drive name for removable media>:\aoc_saq_d_v3_merchant.docx
Changes user data files extensions (Trojan.Encoder).

Recommandations pour le traitement

  1. 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.
  2. 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.

Veuillez lancer le scan complet du système à l'aide de Dr.Web Antivirus pour Mac OS.

Veuillez lancer le scan complet de toutes les partitions du disque à l'aide de Dr.Web Antivirus pour Linux.

  1. 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.
  2. 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