<P> Once a malicious program is installed on a system , it is essential that it stays concealed , to avoid detection . Software packages known as rootkits allow this concealment , by modifying the host 's operating system so that the malware is hidden from the user . Rootkits can prevent a malicious process from being visible in the system 's list of processes , or keep its files from being read . </P>
<P> Once a malicious program is installed on a system , it is essential that it stays concealed , to avoid detection . Software packages known as rootkits allow this concealment , by modifying the host 's operating system so that the malware is hidden from the user . Rootkits can prevent a malicious process from being visible in the system 's list of processes , or keep its files from being read . </P>
a special type of software that is used to hide malware bots and worms
a special type of software that is used to hide malware bots and worms
rootkits
rootkits