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Avast Software – Infringement of the ‘154 Patent
`
`8,141,154 - Claim 1
`
`A system for protecting a
`computer from dynamically
`generated malicious
`content, comprising:
`
`Avast Software Antivirus / Internet Security
`
`Avast includes a hardened mode features which allows blocking of files from executing when it is
`unclear if they are safe.
`
`
`Sources: https://press.avast.com/avast-makes-the-most-trusted-antivirus-in-the-world-even-faster-and-
`
`

`
`more-effectivehttps://www.youtube.com/watch?v=3Z3jv6FOMjY.
`
`Avast will protect from web based attacks that are dynamically generated and have passed static
`scanning.
`
`
`http://itchannel3.itchannel.ro/wp-content/uploads/2013/07/avast-load-JZ-edit.pdf
`
`
`
`a content processor (i) for
`
`Avast will protect web based attacks that are processed by a content processor, such as a client with a
`
`- 2 -
`
`

`
`web browser, and originate from the web and are “received over a network.”
`
`processing content received
`over a network, the content
`including a call to a first
`function, and the call
`including an input, and
`
`
`http://itchannel3.itchannel.ro/wp-content/uploads/2013/07/avast-load-JZ-edit.pdf
`
`Avast includes protection against exploits that launch in a user’s browser to execute malicious code
`without the user’s knowledge. A script shown below will be rendered at runtime, and is a redirect to a
`malicious content.
`
`- 3 -
`
`

`
`https://blog.avast.com/2013/11/12/top-3-types-of-hacks-against-small-websites/#more-18482
`
`
`
`
`https://blog.avast.com/2013/11/20/fallout-from-nuclear-pack-exploit-kit-highly-toxic-for-windows-
`
`- 4 -
`
`

`
`machines\
`
`
`https://blog.avast.com/2013/11/20/fallout-from-nuclear-pack-exploit-kit-highly-toxic-for-windows-
`machines/
`
`Avast includes a look-up to the avast! Cloud to determine if the file is safe and will block it if it is
`marked as bad.
`
`
`
`(ii) for invoking a second
`function with the input,
`only if a security computer
`indicates that such
`invocation is safe;
`
`- 5 -
`
`

`
`a transmitter for
`transmitting the input to the
`security computer for
`inspection, when the first
`function is invoked; and
`
`
`https://support.business.avast.com/hc/en-us/articles/206435345-DeepScreen-Hardened-Mode
`
`Avast will transmit to the cloud during a check.
`
`
`https://support.business.avast.com/hc/en-us/articles/206435345-DeepScreen-Hardened-Mode
`
`http://itchannel3.itchannel.ro/wp-content/uploads/2013/07/avast-load-JZ-edit.pdf
`
`
`
`- 6 -
`
`

`
`
`
`
`
`
`
`https://www.avast.com/en-us/privacy-policy
`
`Avast will receive a response from the avast! cloud if the file is safe or bad.
`
`
`https://support.business.avast.com/hc/en-us/articles/206435345-DeepScreen-Hardened-Mode
`
`a receiver for receiving an
`indicator from the security
`computer whether it is safe
`to invoke the second
`function with the input.
`
`
`
`- 7 -

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