{"id":73923,"date":"2020-03-12T20:42:15","date_gmt":"2020-03-12T17:42:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/google-predstavil-blokirovshhik-podstanovki-vvoda-cherez-vredonosnye-usb-ustrojstva"},"modified":"2020-03-12T20:42:15","modified_gmt":"2020-03-12T17:42:15","slug":"google-predstavil-blokirovshhik-podstanovki-vvoda-cherez-vredonosnye-usb-ustrojstva","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/google-predstavil-blokirovshhik-podstanovki-vvoda-cherez-vredonosnye-usb-ustrojstva","title":{"rendered":"Google tutvustas kahjustatud USB-seadmete sisestuse blokeerimist","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Google'i ettev\u00f5te avalikustas<\/a><\/noindex> utiliit ukip<\/a><\/noindex>, mis v\u00f5imaldab j\u00e4lgida ja blokeerida r\u00fcnnakud<\/a><\/noindex>, mis toimub kahjulike USB-seadmete abil, mis simuleerivad USB-klaviatuuri, et varjatult sisestada vale klahvivajutusi (n\u00e4iteks r\u00fcnnakus v\u00f5ib olla simuleeritud<\/a><\/noindex> klahvivajutuste j\u00e4rjekord, mis viib terminali avamiseni ja seda juhuslike k\u00e4skude t\u00e4itmiseni). Kood on kirjutatud Python keeles ja levitatakse<\/a><\/noindex> lisensiga Apache 2.0. <\/p>\n

Utiliit k\u00e4ivitub systemd teenusena ja v\u00f5ib t\u00f6\u00f6tada r\u00fcnde tuvastamise ja t\u00f5kestamise re\u017eiimides. J\u00e4lgimisre\u017eiimis tuvastatakse v\u00f5imalikke r\u00fcndeid ja logitakse tegevus, mis on seotud USB-seadmete mittesihip\u00e4rase kasutamise katsetega sisendi sisestamiseks. Kaitse re\u017eiimis, kui tuvastatakse potentsiaalselt kahjulik seade, \u00fchendatakse see draiveri tasemel s\u00fcsteemist lahti. <\/p>\n

Kahjulik tegevus tuvastatakse klahvivajutuste toimet ja viivituste heuristilise anal\u00fc\u00fcsi p\u00f5hjal \u2014 r\u00fcnnak toimuvad tavaliselt kasutaja kohalolekul ning et see j\u00e4\u00e4ks m\u00e4rkamatuks, simuleeritud klahvivajutused saadetakse ebaharilike minimaalse viivitusega, mis ei vasta tavalisele klaviatuuri sisendile. R\u00fcnnakute m\u00e4\u00e4ratlemise loogika muutmiseks on pakutud kahte seadet: KEYSTROKE_WINDOW ja ABNORMAL_TYPING (esimene m\u00e4\u00e4rab anal\u00fc\u00fcsitavate klahvivajutuste arvu, teine aga klahvivajutuste vaheline piirv\u00e4\u00e4rtus).<\/p>\n

R\u00fcnnak v\u00f5ib toimuda kahtlust \u00e4ratamata seadme abil, millel on muudetud tarkvara, n\u00e4iteks saab klaviatuuri simuleerida USB-m\u00e4lupulgaks<\/a><\/noindex>, USB-hubiks<\/a><\/noindex>, veebikaameraks<\/a><\/noindex> v\u00f5i nutitelefoniks<\/a><\/noindex> (Kalis Kali NetHunter<\/a><\/noindex> pakub erilist utiliiti \u00fchendatud USB-porti kaudu nutitelefonist sisendi sisestamiseks, mis t\u00f6\u00f6tab Android platvormil). R\u00fcnnakute keerukuse suurendamiseks USB kaudu saab lisaks ukipile kasutada ka paketti USBGuard<\/a><\/noindex>, mis lubab seadmete \u00fchendamist ainult valgesse nimekirja kuuluvate seadmetega v\u00f5i blokeerib v\u00f5imaluse \u00fchenduda k\u00f5rvaliste USB-seadmetega ekraani lukustamise ajal ja ei luba selliste seadmete kasutamist p\u00e4rast kasutaja naasmist.<\/p>\n

<\/a><\/noindex><\/p>\n

Allikas: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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