{"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\/cs\/blog\/news\/google-predstavil-blokirovshhik-podstanovki-vvoda-cherez-vredonosnye-usb-ustrojstva","title":{"rendered":"Google p\u0159edstavil blok\u00e1tor vstupu p\u0159es \u0161kodliv\u00e1 USB za\u0159\u00edzen\u00ed","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Spole\u010dnost Google publikovala<\/a><\/noindex> n\u00e1stroj ukip<\/a><\/noindex>, kter\u00fd umo\u017e\u0148uje sledovat a blokovat \u00fatok\u016fm<\/a><\/noindex>, prov\u00e1d\u011bn\u00e9 pomoc\u00ed \u0161kodliv\u00fdch USB za\u0159\u00edzen\u00ed simuluj\u00edc\u00edch USB kl\u00e1vesnice pro skryt\u00e9 substituce fale\u0161n\u00fdch stisk\u016f kl\u00e1ves (nap\u0159\u00edklad b\u011bhem \u00fatoku m\u016f\u017ee b\u00fdt simulov\u00e1na<\/a><\/noindex> sekvence stisk\u016f, vedouc\u00ed k otev\u0159en\u00ed termin\u00e1lu a proveden\u00ed libovoln\u00fdch p\u0159\u00edkaz\u016f). K\u00f3d je naps\u00e1n v jazyce Python a distribuov\u00e1no<\/a><\/noindex> pod licenc\u00ed Apache 2.0. <\/p>\n

N\u00e1stroj se spou\u0161t\u00ed jako systemd slu\u017eba a m\u016f\u017ee pracovat v re\u017eimech monitorov\u00e1n\u00ed a prevence \u00fatok\u016f. V re\u017eimu monitorov\u00e1n\u00ed se ur\u010duj\u00ed mo\u017en\u00e9 \u00fatoky a zaznamen\u00e1v\u00e1 se aktivita souvisej\u00edc\u00ed s pokusy o nevhodn\u00e9 pou\u017eit\u00ed USB za\u0159\u00edzen\u00ed pro substituci vstupu. V ochran\u00e9m re\u017eimu, p\u0159i zji\u0161t\u011bn\u00ed potenci\u00e1ln\u011b \u0161kodliv\u00e9ho za\u0159\u00edzen\u00ed, se odpojuje od syst\u00e9mu na \u00farovni ovlada\u010de. <\/p>\n

Malware activity is determined based on heuristic analysis of input patterns and delays between keystrokes \u2014 the attack is usually carried out in the presence of the user and to remain unnoticed, simulated keystrokes are sent with atypical minimal delays compared to normal keyboard input. Two settings have been proposed to change the logic of attack detection: KEYSTROKE_WINDOW and ABNORMAL_TYPING (the first defines the number of keystrokes for analysis, while the second sets the threshold interval between keystrokes).<\/p>\n

\u00datok m\u016f\u017ee b\u00fdt proveden pomoc\u00ed nen\u00e1padn\u00e9ho za\u0159\u00edzen\u00ed s upraven\u00fdm firmwarem, nap\u0159\u00edklad simulaci kl\u00e1vesnice lze prov\u00e9st v USB flash disku<\/a><\/noindex>, USB hubu<\/a><\/noindex>, webov\u00e9 kame\u0159e<\/a><\/noindex> nebo chytr\u00e9m telefonu<\/a><\/noindex> (v Kali NetHunter<\/a><\/noindex> je k dispozici speci\u00e1ln\u00ed n\u00e1stroj pro substituci vstupu z p\u0159ipojen\u00e9ho chytr\u00e9ho telefonu s opera\u010dn\u00edm syst\u00e9mem Android p\u0159es USB port). Pro zt\u00ed\u017een\u00ed \u00fatok\u016f p\u0159es USB lze krom\u011b ukip tak\u00e9 vyu\u017e\u00edt bal\u00ed\u010dek USBGuard<\/a><\/noindex>, kter\u00fd povoluje p\u0159ipojen\u00ed za\u0159\u00edzen\u00ed pouze z whitelistu nebo blokuje mo\u017enost p\u0159ipojen\u00ed ciz\u00edch USB za\u0159\u00edzen\u00ed b\u011bhem zam\u010den\u00ed obrazovky a nedovol\u00ed pr\u00e1ci s takov\u00fdmi za\u0159\u00edzen\u00edmi po n\u00e1vratu u\u017eivatele.<\/p>\n

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

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

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\u044f\u0437\u044b\u043a\u0435 Python \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 Apache 2.0. \u0423\u0442\u0438\u043b\u0438\u0442\u0430 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u0442\u0441\u044f […]<\/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-73923","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\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\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Google p\u0159edstavil blok\u00e1tor substituce vstupu p\u0159es \u0161kodliv\u00e1 USB 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