{"id":53591,"date":"2019-12-05T00:00:00","date_gmt":"2019-12-04T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/kak-zloumyshlenniki-mogut-chitat-vashu-perepisku-v-telegram-i-kak-im-v-etom-pomeshat"},"modified":"2020-02-18T14:01:31","modified_gmt":"2020-02-18T11:01:31","slug":"kak-zloumyshlenniki-mogut-chitat-vashu-perepisku-v-telegram-i-kak-im-v-etom-pomeshat","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/kak-zloumyshlenniki-mogut-chitat-vashu-perepisku-v-telegram-i-kak-im-v-etom-pomeshat","title":{"rendered":"Kako zlonamjernici mogu \u010ditati va\u0161u komunikaciju na Telegramu. I kako im to sprije\u010diti","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"Kako<\/p>\n

Krajem 2019. godine, odjel za istragu cyber kriminala Group-IB primio je nekoliko prijava od ruskih poduzetnika koji su se suo\u010dili s problemom neovla\u0161tenog pristupa nepoznatih osoba njihovoj komunikaciji u aplikaciji Telegram. Incidenti su se doga\u0111ali na ure\u0111ajima iOS i Android, bez obzira na to kojem federalnom operateru mobilne telefonije su pripadali o\u0161te\u0107eni.<\/p>\n

Napad je zapo\u010dinjao tako \u0161to je korisniku Telegrama stizala poruka od slu\u017ebenog kanalnog servisa Telegrama (to je slu\u017ebeni kanal aplikacije s plavom kva\u010dicom verifikacije) sa kodom za potvrdu koji korisnik nije tra\u017eio. Nakon toga, na pametni telefon \u017ertve pristiglo bi SMS s aktivacijskim kodom - i gotovo odmah bi slu\u017ebeni kanal Telegrama primio obavijest da su se prijavili na ra\u010dun s novog ure\u0111aja.<\/a><\/noindex><\/p>\n

\"Kako <\/p>\n

U svim slu\u010dajevima za koje je Group-IB saznao, napada\u010di su ulazili u tu\u0111i ra\u010dun putem mobilnog interneta (vjerojatno su kori\u0161tene jednokratne SIM kartice), a IP adresa napada\u010da bila je u ve\u0107ini slu\u010dajeva u Samari. <\/p>\n

Pristup po narud\u017ebi <\/h3>\n

\nIstra\u017eivanje Laboratorija za ra\u010dunalnu forenziku Group-IB, kojem su predani elektroni\u010dki ure\u0111aji \u017ertava, pokazalo je da oprema nije bila zara\u017eena \u0161pijunskim malicioznim programom ili bankovskim trojancem, ra\u010duni nisu hakirani, a zamjena SIM kartice nije izvr\u0161ena. U svim slu\u010dajevima napada\u010di su dobivali pristup aplikaciji \u017ertve putem SMS kodova koji se primaju prilikom prijave na ra\u010dun s novog ure\u0111aja. <\/p>\n

Ova procedura izgleda ovako: prilikom aktivacije aplikacije na novom ure\u0111aju, Telegram \u0161alje kod preko slu\u017ebenog kanala na sve ure\u0111aje korisnika, a potom (na zahtjev) odlazi SMS poruka na telefon. Znaju\u0107i ovo, napada\u010di sami iniciraju zahtjev za slanje SMS-a s aktivacijskim kodom, presretnu taj SMS i koriste dobiveni kod za uspje\u0161nu autorizaciju u aplikaciji. <\/p>\n

Na taj na\u010din, napada\u010di dobivaju neovla\u0161teni pristup svim trenutnim chatovima osim tajnih, kao i povijesti razgovora u tim chatovima, uklju\u010duju\u0107i datoteke i fotografije koje su u njima razmjenjivane. Kada to otkrije, zakoniti korisnik Telegrama mo\u017ee prisilno prekinuti sesiju napada\u010da. Zbog implementiranog mehanizma za\u0161tite, obrnuto se ne mo\u017ee dogoditi; napada\u010d ne mo\u017ee prekinuti starije sesije stvarnog korisnika u roku od 24 sata. Stoga je va\u017eno pravovremeno otkriti neovla\u0161tenu sesiju i prekinuti je kako ne biste izgubili pristup svom ra\u010dunu. Stru\u010dnjaci Group-IB poslali su obavijest timu Telegram o svom istra\u017eivanju situacije.<\/p>\n

Istra\u017eivanje incidenata se nastavlja, a do sada nije to\u010dno utvr\u0111eno koja se shema koristila za zaobila\u017eenje SMS za\u0161tite. U razli\u010ditim vremenima istra\u017eiva\u010di su davali primjere presretanja SMS poruka uz pomo\u0107 napada na protokole SS7 ili Diameter, koji se koriste u mobilnim mre\u017eama. Teoretski, takvi napadi mogu se provesti ilegalnom upotrebom specijaliziranih tehni\u010dkih sredstava ili uz pomo\u0107 informacija iz telekomunikacijskih operatera. Konkretno, na hakerskim forumima u Darknetu pojavili su se novi oglasi s ponudama za hakiranje razli\u010ditih messenger aplikacija, uklju\u010duju\u0107i i Telegram. <\/p>\n

\"Kako<\/p>\n

\u201eStru\u010dnjaci u raznim zemljama, uklju\u010duju\u0107i i Rusiju, vi\u0161e puta su izjavili da se dru\u0161tvene mre\u017ee, mobilno bankarstvo i messengeri mogu hakirati pomo\u0107u ranjivosti u protokolu SS7, no to su bili slu\u010dajevi ciljanih napada ili eksperimentalnih istra\u017eivanja\u201d, komentira Sergey Lupanin, voditelj odjela za istrage cyber kriminala u Group-IB, \u201eU nizu novih incidenata, kojih je ve\u0107 vi\u0161e od 10, o\u010dita je namjera napada\u010da da ovaj na\u010din zarade stavi u sistem. Da se to ne dogodi, potrebno je pove\u0107ati vlastiti nivo digitalne higijene: barem koristiti dvofaktorsku autentifikaciju svugdje gdje je mogu\u0107e i dodati obavezni drugi faktor SMS-u, \u0161to je funkcionalno ugra\u0111eno u sam Telegram.\u201d<\/p>\n

Kako se za\u0161tititi?<\/h3>\n

\n 1. U Telegramu su ve\u0107 implementirane sve potrebne opcije kibernetske sigurnosti koje \u0107e sru\u0161iti napada\u010deve napore.
\n 2. Na iOS i Android ure\u0111ajima za Telegram potrebno je oti\u0107i u postavke Telegrama, odabrati karticu \u201ePrivatnost\u201c i postaviti \u201eObla\u010dnu lozinku - Dvofaktorsku provjeru\u201c ili \u201eTwo step verification\u201c. Detaljan opis kako uklju\u010diti ovu opciju dan je u uputama na slu\u017ebenoj web stranici messengera: telegram.org\/blog\/sessions-and-2-step-verification<\/a><\/noindex> (https:\/\/telegram.org\/blog\/sessions-and-2-step-verification)<\/p>\n

\"Kako<\/p>\n

3. Va\u017eno je ne postavljati adresu e-po\u0161te za vra\u0107anje te lozinke, jer se obi\u010dno vra\u0107anje lozinke za e-po\u0161tu tako\u0111er doga\u0111a putem SMS-a. Na sli\u010dan na\u010din mo\u017eete pove\u0107ati za\u0161titu svog ra\u010duna na WhatsApp-u.<\/p>\n

\r\n \"Pogledajte\r\n
<\/div>\r\n <\/div><\/center>
\n
Izvor: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u043a\u043e\u043d\u0446\u0435 2019 \u0433\u043e\u0434\u0430 \u0432 \u043e\u0442\u0434\u0435\u043b \u0440\u0430\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u0439 \u043a\u0438\u0431\u0435\u0440\u043f\u0440\u0435\u0441\u0442\u0443\u043f\u043b\u0435\u043d\u0438\u0439 Group-IB \u043e\u0431\u0440\u0430\u0442\u0438\u043b\u0438\u0441\u044c \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u0435\u0434\u043f\u0440\u0438\u043d\u0438\u043c\u0430\u0442\u0435\u043b\u0435\u0439, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0441\u0442\u043e\u043b\u043a\u043d\u0443\u043b\u0438\u0441\u044c \u0441 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u043e\u0439 \u043d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043d\u0435\u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b\u0445 \u043a \u0438\u0445 \u043f\u0435\u0440\u0435\u043f\u0438\u0441\u043a\u0435 \u0432 \u043c\u0435\u0441\u0441\u0435\u043d\u0434\u0436\u0435\u0440\u0435 Telegram. \u0418\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u044b \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u043b\u0438 \u043d\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445 iOS \u0438 Android, \u043d\u0435\u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e \u043e\u0442 \u0442\u043e\u0433\u043e \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u043c \u043a\u0430\u043a\u043e\u0433\u043e \u0444\u0435\u0434\u0435\u0440\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u0430 \u0441\u043e\u0442\u043e\u0432\u043e\u0439 \u0441\u0432\u044f\u0437\u0438 \u044f\u0432\u043b\u044f\u043b\u0441\u044f \u043f\u043e\u0441\u0442\u0440\u0430\u0434\u0430\u0432\u0448\u0438\u0439. \u0410\u0442\u0430\u043a\u0430 \u043d\u0430\u0447\u0438\u043d\u0430\u043b\u0430\u0441\u044c \u0441 \u0442\u043e\u0433\u043e, \u0447\u0442\u043e \u0432 \u043c\u0435\u0441\u0441\u0435\u043d\u0434\u0436\u0435\u0440 Telegram \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044e \u043f\u0440\u0438\u0445\u043e\u0434\u0438\u043b\u043e \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-53591","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Kako zlonamjernici mogu \u010ditati va\u0161u prepisku na Telegramu. I kako im to sprije\u010diti | ProHoster","description":"","canonical_url":"https:\/\/prohoster.info\/hr\/blog\/news\/kak-zloumyshlenniki-mogut-chitat-vashu-perepisku-v-telegram-i-kak-im-v-etom-pomeshat","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hr_HR","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041a\u0430\u043a \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0438 \u043c\u043e\u0433\u0443\u0442 \u0447\u0438\u0442\u0430\u0442\u044c \u0432\u0430\u0448\u0443 \u043f\u0435\u0440\u0435\u043f\u0438\u0441\u043a\u0443 \u0432 Telegram. \u0418 \u043a\u0430\u043a \u0438\u043c \u0432 \u044d\u0442\u043e\u043c \u043f\u043e\u043c\u0435\u0448\u0430\u0442\u044c | ProHoster","og:url":"https:\/\/prohoster.info\/hr\/blog\/news\/kak-zloumyshlenniki-mogut-chitat-vashu-perepisku-v-telegram-i-kak-im-v-etom-pomeshat","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2019-12-04T21:00:00+00:00","article:modified_time":"2020-02-18T11:01:31+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"53591","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-24 08:01:20","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-02-28 20:22:49","updated":"2026-01-24 08:01:20","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/posts\/53591","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/comments?post=53591"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/posts\/53591\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/media?parent=53591"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/categories?post=53591"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/tags?post=53591"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}