Virus on keyboard or what? Automatic zeros 000000

Question

Hi all,
Once in a day, when i used to use Mavericks, my keyboard starts to make automatic zeros like this:
00000000000000000000000000000000000000000000000
Even when sometimes i write it appears like that:
He0ll0o, a0re yo0u f0in0e?
I've already changed to Yosemite wit a clean install and the problem remains.
Could be a virus on iMac or in the Keyboard?
Thanks for you kind help.

Answer 1

Thanks OT.
Results from EtreCheck:
EtreCheck version: 2.1.8 (121)
Report generated 6 de Março de 2015 às 19:04:00 WET
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
    iMac (21.5-inch, Mid 2011) (Technical Specifications)
    iMac - model: iMac12,1
    1 2.5 GHz Intel Core i5 CPU: 4-core
    8 GB RAM Upgradeable
        BANK 0/DIMM0
            2 GB DDR3 1333 MHz ok
        BANK 1/DIMM0
            2 GB DDR3 1333 MHz ok
        BANK 0/DIMM1
            2 GB DDR3 1333 MHz ok
        BANK 1/DIMM1
            2 GB DDR3 1333 MHz ok
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless:  en1: 802.11 a/b/g/n
Video Information: ℹ️
    AMD Radeon HD 6750M - VRAM: 512 MB
        iMac 1920 x 1080
System Software: ℹ️
    OS X 10.10.2 (14C109) - Time since boot: 2:37:22
Disk Information: ℹ️
    ST3500418AS disk1 : (500,11 GB)
        EFI (disk1s1) <not mounted> : 210 MB
        HDD (disk1s2) /Volumes/HDD : 499.76 GB (4.00 GB free)
    Samsung SSD 840 EVO 250GB disk0 : (250,06 GB)
        EFI (disk0s1) <not mounted> : 210 MB
        SSD (disk0s2) / : 249.20 GB (220.78 GB free)
        Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
    HL-DT-STDVDRW  GA32N 
USB Information: ℹ️
    Apple Inc. FaceTime HD Camera (Built-in)
    Samsung Electronics Co., Ltd. CLX-3170 Series
    Apple Inc. BRCM2046 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Internal Memory Card Reader
    Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
    Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
    Mac App Store and identified developers
Launch Agents: ℹ️
    [running]    com.tvmobili.artwork.plist [Click for support]
Launch Daemons: ℹ️
    [loaded]    com.adobe.fpsaud.plist [Click for support]
    [loaded]    com.DesignScience.DSMTTool.plist [Click for support]
    [loaded]    com.microsoft.office.licensing.helper.plist [Click for support]
    [running]    com.tvmobili.tvmobilisvcd.plist [Click for support]
    [loaded]    org.cindori.TEAuth.plist [Click for support]
User Login Items: ℹ️
    iTunesHelper    Aplicação  (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
    Dropbox    Aplicação  (/Applications/Dropbox.app)
Internet Plug-ins: ℹ️
    SharePointBrowserPlugin: Version: 14.4.8 - SDK 10.6 [Click for support]
    FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    Flash Player: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    QuickTime Plugin: Version: 7.7.3
    Default Browser: Version: 600 - SDK 10.10
3rd Party Preference Panes: ℹ️
    Flash Player  [Click for support]
Time Machine: ℹ️
    Time Machine not configured!
Top Processes by CPU: ℹ️
         3%    WindowServer
         1%    fontd
         0%    AppleSpell
         0%    askpermissiond
Top Processes by Memory: ℹ️
    438 MB    softwareupdated
    137 MB    com.apple.WebKit.WebContent
    103 MB    Mail
    94 MB    mds_stores
    94 MB    Safari
Virtual Memory Information: ℹ️
    4.79 GB    Free RAM
    2.31 GB    Active RAM
    344 MB    Inactive RAM
    1.14 GB    Wired RAM
    1.30 GB    Page-ins
    0 B    Page-outs
Diagnostics Information: ℹ️
    Mar 6, 2015, 04:26:21 PM    Self test - passed