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  1. #1
    Registered User
    Join Date
    Oct 2006
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    1

    Default Courier - pscan2 - 100% CPU

    I'm using CPanel (WHM 11.2.0 cPanel 11.8.0-R16150 FEDORA 5 i686 - WHM X v3.1.0 )
    And my server alway have this task, it takes 100%CPU, if i kill it, an toher will appear.
    Any one can help me?

    this is some info when i exec top command:

    PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
    8138 courier 25 0 1596 480 408 R 100 0.0 9:15.56 pscan2


    Thanks.

  2. #2
    Super Moderator This forum account has been confirmed by cPanel staff to represent a vendor. chirpy's Avatar
    Join Date
    Jun 2002
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    Go on, have a guess
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    13,495

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    pscan2 is usually a port scanner exploit. You need to check the process (lsof is a good start) and if it is a port scanner, investigate the compromise.
    Jonathan Michaelson

    Need your cPanel servers secured and tuned?
    cPanel Server Configuration, Security, Recovery and Antivirus/AntiSpam Services
    Developers of the most effective (and free) Firewall & Security Solution for cPanel Servers - csf
    http://www.configserver.com

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