different between malicious vs autodialer

English

From Old French malicios, from Latin malitiosus, from malitia (“malice”), from malus (“bad”). Displaced native Old English yfelwillende.

malicious (comparative more malicious, superlative most malicious)

Of, pertaining to, or as a result of malice or spite
spiteful and deliberately harmful
He was sent off for a malicious tackle on Jones.

auto- +? dialer

autodialer (plural autodialers)

an electronic device that can automatically dial telephone numbers to communicate between any two points in the telephone, mobile phone and pager networks
(computing) malicious software, embedded in a website, that routes dial-up Internet connections to a different telephone number charged at a premium rate

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