{"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\/en\/blog\/news\/google-predstavil-blokirovshhik-podstanovki-vvoda-cherez-vredonosnye-usb-ustrojstva","title":{"rendered":"Google has introduced an input substitution blocker against malicious USB devices","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Google Inc. released<\/a><\/noindex> utility ukip<\/a><\/noindex>, allowing for tracking and blocking attacks<\/a><\/noindex>, carried out using malicious USB devices that simulate a USB keyboard for stealthy injection of fake keystrokes (for example, during an attack, a simulated<\/a><\/noindex> sequence of keystrokes may lead to the opening of a terminal and the execution of arbitrary commands). The code is written in Python and is distributed<\/a><\/noindex> under the Apache 2.0 license. <\/p>\n

The utility runs as a systemd service and can operate in monitoring and prevention modes. In monitoring mode, it detects potential attacks and logs activity related to attempts to misuse USB devices for input substitution. In protection mode, upon detecting a potentially malicious device, it disconnects it from the system at the driver level. <\/p>\n

Malicious activity is determined based on heuristic analysis of the nature of input and delays between keystrokes \u2014 attacks are typically conducted in the presence of the user, and in order to remain unnoticed, simulated keystrokes are sent with atypical minimal delays for normal keyboard input. Two settings, KEYSTROKE_WINDOW and ABNORMAL_TYPING, have been proposed to alter the logic for detecting attacks (the first defines the number of keystrokes for analysis, while the second sets the threshold interval between keystrokes).<\/p>\n

An attack can be carried out using a seemingly innocuous device with modified firmware; for example, a keyboard can be simulated in a USB flash drive<\/a><\/noindex>, USB hub<\/a><\/noindex>, webcam<\/a><\/noindex> or smartphone<\/a><\/noindex> (in Kali NetHunter<\/a><\/noindex> a special input substitution utility is offered for use with a smartphone connected to the USB port running the Android platform). To complicate USB attacks, in addition to ukip, the USBGuard<\/a><\/noindex>, which allows the connection of devices only from a whitelist or blocks the connection of external USB devices during screen lock and prevents operation with such devices after the user returns.<\/p>\n

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

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

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