Monday, February 4, 2013

How to install Linux Malware Detect (LMD)

How to install Linux Malware Detect (LMD)

Maldet also known as Linux Malware Detect virus scanner for Linux.

Download the tar file using the below link:


Extract the file using the below command

    tar -xzf maldetect-current.tar.gz

go to the maldet folder

    cd maldetect-*

Now, run the below command to install maldet.

    sh ./ or sudo sh ./

It will give below output

    Linux Malware Detect v1.3.4
    (C) 1999-2010, R-fx Networks <>
    (C) 2010, Ryan MacDonald <>
    inotifywait (C) 2007, Rohan McGovern <>
    This program may be freely redistributed under the terms of the GNU GPL

    installation completed to /usr/local/maldetect
    config file: /usr/local/maldetect/conf.maldet
    exec file: /usr/local/maldetect/maldet
    exec link: /usr/local/sbin/maldet
    cron.daily: /etc/cron.daily/maldet

    maldet(32517): {sigup} performing signature update check…
    maldet(32517): {sigup} local signature set is version 2010051510029
    maldet(32517): {sigup} latest signature set already installed


To update the maldet use the below commands.

    maldet –update-ver

    maldet –update[/i]

To scan the files.

    maldet -a /home/username/

It will scan all the files and provide you the output.

To scan all user uder public_html paths under /home*/ this can be done with:

    root@server[~]# maldet –scan-all /home?/?/public_html

To scan the same path but the content that has been created/modified in the last 5 days:

    root@server[~]# maldet –scan-recent /home?/?/public_html 5

To scan but forget to turn on the quarantine option, you could quarantine all malware results from a previous scan with:

    root@server[~]# maldet –quarantine SCANID

If you wanted to attempt a clean on all malware results from a previous scan that did not have the feature enabled, you would do with.

    root@server[~]# maldet –clean SCANID

If you had a file that was quarantined from a false positive or that you simply want to restore (i.e: you manually cleaned it), you can use the following:

    root@server[~]# maldet –restore config.php.2384
    root@server[~]# maldet –restore /usr/local/maldetect/quarantine/config.php.2384

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