repeated panic attacks - help

Can anyone share some light as to what may be happening here? To me all of this is just gibberish, but to the trained eye it probably means a lot. Purchased this just last year in November/December and I'm getting these panic attacks / restarts, for no apparent reason (at least that's the way it looks to me as I have very little experience in this behavior). This is the latest one as of this boring while watching the last episode of The Flash.

Tue Feb 9 04:39:27 2016

*** Panic Report ***

panic(cpu 0 caller 0xffffff7f99b455c3): "ntfs_attr_list_sync_shrink(): ni->attr_list_size > size\n"@/BuildRoot/Library/Caches/com.apple.xbs/Sources/ntfs/ntfs-88.0.0.0.1/ke xt/ntfs_attr_list.c:1159

Backtrace (CPU 0), Frame : Return Address

0xffffff81264e3550 : 0xffffff8018edf792

0xffffff81264e35d0 : 0xffffff7f99b455c3

0xffffff81264e3630 : 0xffffff7f99b2e630

0xffffff81264e3720 : 0xffffff7f99b22e86

0xffffff81264e37e0 : 0xffffff7f99b1af58

0xffffff81264e3850 : 0xffffff801912229f

0xffffff81264e3930 : 0xffffff80190f7881

0xffffff81264e39b0 : 0xffffff80190f6718

0xffffff81264e3a80 : 0xffffff80190f5dc8

0xffffff81264e3bc0 : 0xffffff8019109345

0xffffff81264e3c10 : 0xffffff8019116a17

0xffffff81264e3f30 : 0xffffff801910bdca

0xffffff81264e3f60 : 0xffffff801942a3b0

0xffffff81264e3fb0 : 0xffffff8018ff0728

Kernel Extensions in backtrace:

com.apple.filesystems.ntfs(3.13)[90B481F5-EDF3-3BA3-842F-A351FD579830]@0xffffff 7f99b0c000->0xffffff7f99b69fff

BSD process name corresponding to current thread: VShieldScanner

Mac OS version:

15D21

Kernel version:

Darwin Kernel Version 15.3.0: Thu Dec 10 18:40:58 PST 2015; root:xnu-3248.30.4~1/RELEASE_X86_64

Kernel UUID: DECC9F02-27D7-31F0-9599-A9EF2873902C

Kernel slide: 0x0000000018c00000

Kernel text base: 0xffffff8018e00000

__HIB text base: 0xffffff8018d00000

System model name: iMac17,1 (Mac-B809C3757DA9BB8D)

System uptime in nanoseconds: 5928897952278

last loaded kext at 1486845238801: com.apple.driver.AppleHIDKeyboard 181 (addr 0xffffff7f9caa5000, size 28672)

last unloaded kext at 86164616847: com.apple.driver.AppleXsanScheme 3 (addr 0xffffff7f9af9a000, size 40960)

loaded kexts:

com.McAfee.AVKext 1

com.McAfee.SFKext 1

com.McAfee.kext.AppProtection 3.3.2

com.apple.driver.AppleTopCaseHIDEventDriver 86

com.apple.driver.AppleHSBluetoothDriver 86

com.apple.filesystems.smbfs 3.0.0

com.apple.driver.AudioAUUC 1.70

com.apple.filesystems.ntfs 3.13

com.apple.driver.AGPM 110.20.22

com.apple.driver.ApplePlatformEnabler 2.6.0d0

com.apple.driver.X86PlatformShim 1.0.0

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.driver.AppleMikeyDriver 272.51.3

com.apple.driver.AppleHDA 272.51.3

com.apple.driver.AppleGraphicsDevicePolicy 3.7.7

com.apple.driver.AppleUpstreamUserClient 3.6.1

com.apple.kext.AMDFramebuffer 1.4.0

com.apple.driver.pmtelemetry 1

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.driver.AppleThunderboltIP 3.0.8

com.apple.AMDRadeonX4000 1.4.0

com.apple.iokit.IOBluetoothSerialManager 4.4.3f4

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleMCCSControl 1.2.13

com.apple.driver.AppleHV 1

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.4.3f4

com.apple.driver.AppleIntelPCHPMC 1.0

com.apple.driver.AppleSMCLMU 208

com.apple.kext.AMD9000Controller 1.4.0

com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

com.apple.driver.AppleIntelSKLGraphics 10.1.2

com.apple.driver.AppleIntelSKLGraphicsFramebuffer 10.1.2

com.apple.driver.AppleRAID 5.0.0

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.BootCache 38

com.apple.driver.AppleSDXC 1.7.0

com.apple.iokit.AppleBCM5701Ethernet 10.1.12

com.apple.driver.AirPort.Brcm4360 1020.17.1a1

com.apple.iokit.IOAHCIBlockStorage 2.8.5

com.apple.driver.AppleAHCIPort 3.1.8

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleACPIButtons 4.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 4.0

com.apple.driver.AppleAPIC 1.7

com.apple.nke.applicationfirewall 163

com.apple.security.quarantine 3

com.apple.security.TMSafetyNet 8

com.apple.driver.AppleHIDKeyboard 181

com.apple.driver.AppleMultitouchDriver 304.10

com.apple.driver.AppleHIDTransport 5

com.apple.driver.IOBluetoothHIDDriver 4.4.3f4

com.apple.kext.triggers 1.0

com.apple.driver.DspFuncLib 272.51.3

com.apple.kext.OSvKernDSPLib 525

com.apple.driver.AppleThunderboltEDMSink 4.1.1

com.apple.iokit.IOSerialFamily 11

com.apple.driver.CoreCaptureResponder 1

com.apple.driver.AppleGraphicsControl 3.12.6

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.4.3f4

com.apple.iokit.IOBluetoothFamily 4.4.3f4

com.apple.driver.AppleSMBusController 1.0.14d1

com.apple.driver.AppleSMBusPCI 1.0.14d1

com.apple.kext.AMDSupport 1.4.0

com.apple.driver.X86PlatformPlugin 1.0.0

com.apple.driver.AppleSMC 3.1.9

com.apple.driver.IOPlatformPluginFamily 6.0.0d7

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.driver.AppleHDAController 272.51.3

com.apple.iokit.IOHDAFamily 272.51.3

com.apple.iokit.IOAudioFamily 204.3

com.apple.vecLib.kext 1.2.0

com.apple.iokit.IOSurface 108.0.1

com.apple.iokit.IONDRVSupport 2.4.1

com.apple.AppleGraphicsDeviceControl 3.12.6

com.apple.iokit.IOAcceleratorFamily2 205.1

com.apple.iokit.IOGraphicsFamily 2.4.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.7

com.apple.driver.AppleThunderboltDPInAdapter 4.1.3

com.apple.driver.AppleThunderboltDPOutAdapter 4.1.3

com.apple.driver.AppleThunderboltDPAdapterFamily 4.1.3

com.apple.driver.AppleThunderboltPCIUpAdapter 2.0.2

com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2

com.apple.driver.CoreStorage 517.20.1

com.apple.driver.usb.AppleUSBHostCompositeDevice 1.0.1

com.apple.driver.AppleThunderboltNHI 4.0.4

com.apple.iokit.IOThunderboltFamily 5.1.0

com.apple.iokit.IOEthernetAVBController 1.0.3b3

com.apple.iokit.IO80211Family 1110.26

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.iokit.IONetworkingFamily 3.2

com.apple.driver.corecapture 1.0.4

com.apple.driver.AppleUSBMergeNub 900.4.1

com.apple.iokit.IOAHCIFamily 2.8.1

com.apple.driver.usb.AppleUSBXHCIPCI 1.0.1

com.apple.driver.usb.AppleUSBXHCI 1.0.1

com.apple.iokit.IOUSBFamily 900.4.1

com.apple.iokit.IOUSBHostFamily 1.0.1

com.apple.driver.AppleUSBHostMergeProperties 1.0.1

com.apple.driver.AppleEFINVRAM 2.0

com.apple.driver.AppleEFIRuntime 2.0

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 300.0

com.apple.kext.AppleMatch 1.0.0d1

com.apple.driver.AppleKeyStore 2

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.driver.AppleCredentialManager 1.0

com.apple.driver.DiskImages 417.2

com.apple.iokit.IOStorageFamily 2.1

com.apple.iokit.IOReportFamily 31

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleACPIPlatform 4.0

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.Libm 1

com.apple.kec.pthread 1

com.apple.kec.corecrypto 1.0

System Profile:

Graphics: AMD Radeon R9 M395, AMD Radeon R9 M395, PCIe, 2048 MB

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x14A), Broadcom BCM43xx 1.0 (7.21.94.136.1a1)

Bluetooth: Version 4.4.3f4 16616, 3 services, 27 devices, 1 incoming serial ports

PCI Card: pci1b21,612, AHCI Controller, Thunderbolt@193,0,0

Thunderbolt Bus: iMac, Apple Inc., 28.1

Thunderbolt Device: My Book Thunderbolt Duo, Western Digital, 1, 26.2

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1867 MHz, 0x80AD, 0x484D54343531533642465238412D52442020

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1867 MHz, 0x80AD, 0x484D54343531533642465238412D52442020

USB Device: USB 3.0 Bus

USB Device: Bluetooth USB Host Controller

USB Device: FaceTime HD Camera (Built-in)

Serial ATA Device: APPLE HDD ST2000DM001, 2 TB

Serial ATA Device: APPLE SSD SM0128G, 121.33 GB

Serial ATA Device: WDC WD30EFRX-68EUZN0, 3 TB

Serial ATA Device: WDC WD30EFRX-68EUZN0, 3 TB

Network Service: Wi-Fi, AirPort, en1

Model: iMac17,1, BootROM IM171.0105.B05, 4 processors, Intel Core i5, 3.3 GHz, 8 GB, SMC 2.34f2

Thanks in advance for any/all help with this problem.

Lonnie