Kernel Panics Upon Shutdown

S

sab89

Registered
Hi Guys,

I've been having a recurring issue since the beginning of the year now. I have a 13inch macbook pro 2011 edition with the latest OSX, (updates included) of Mountain Lion.

This is what happens:

On intermittent occasions, when I go to shutdown my laptop, it will Immediately reboot not even a second later. (as if I issued a restart instead of a reboot). Then I get the message stating that "your laptop restarted due to an error" in like 5 different languages.

After which the laptop boots up normally, and when I log in after declining to reopen my closed programs, an error log shows up.

After looking through logs I discovered that these were kernel panics and removed any start-up programs from my laptop ( I discovered that both Google Drive and Dropbox were contributing to the issue. Now the only thing there is my Webroop anitvirus software which I need in order use my laptop on campus.

Has anyone experienced this before? I will post the error logs below. I've been on and off the phone with apple care and went to the Genius bar but they couldn't figure it out. So I want to try to figure it out on my own before I bring it back in.

Thanks in Advance

Start up log after kernel Panic

Interval Since Last Panic Report: 160726 sec
Panics Since Last Report: 1
Anonymous UUID: 14669F2F-CBAF-9779-CEC0-6DED7640777F

Thu Jun 20 17:59:27 2013
panic(cpu 1 caller 0xffffff80052b8655): Kernel trap at 0xffffff800555d04e, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x0000000000000168, CR3: 0x0000000003037046, CR4: 0x00000000000606e0
RAX: 0xffffff801078ddc8, RBX: 0x0000000000000000, RCX: 0x00000000031f0000, RDX: 0xffffff800fa54580
RSP: 0xffffff8078083890, RBP: 0xffffff80780838a0, RSI: 0x000000000000009d, RDI: 0xffffff800fa54580
R8: 0xffffff80129bc6c8, R9: 0x0000000000000000, R10: 0xffffff80109ee620, R11: 0x0000000000000001
R12: 0x0000000000000020, R13: 0xffffff8078083984, R14: 0x0000000000000000, R15: 0xffffff8010da8808
RFL: 0x0000000000010246, RIP: 0xffffff800555d04e, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000000000168, Error code: 0x0000000000000000, Fault CPU: 0x1

Backtrace (CPU 1), Frame : Return Address
0xffffff8078083530 : 0xffffff800521d626
0xffffff80780835a0 : 0xffffff80052b8655
0xffffff8078083770 : 0xffffff80052ce17d
0xffffff8078083790 : 0xffffff800555d04e
0xffffff80780838a0 : 0xffffff7f85899f61
0xffffff80780838d0 : 0xffffff7f8589a5cf
0xffffff8078083900 : 0xffffff8005540db1
0xffffff8078083960 : 0xffffff80052f517b
0xffffff80780839b0 : 0xffffff80052eb4bb
0xffffff8078083a30 : 0xffffff80052eae1e
0xffffff8078083af0 : 0xffffff8005308ea0
0xffffff8078083b90 : 0xffffff80052fb839
0xffffff8078083c40 : 0xffffff80052fc004
0xffffff8078083f50 : 0xffffff80055e16aa
0xffffff8078083fb0 : 0xffffff80052ce9c3
Kernel Extensions in backtrace:
com.webroot.driver.SecureAnywhere(104.0)[4516877C-BD60-3F95-93D2-D2A9EC8F0A00]@0xffffff7f85898000->0xffffff7f8589cfff
dependency: com.apple.iokit.IOHIDFamily(1.8.1)[F0B6DA72-B1C1-3816-AC9F-5F1C12E8A7DD]@0xffffff7f85818000

BSD process name corresponding to current thread: talagent

Mac OS version:
12E55

Kernel version:
Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64
Kernel UUID: 896CB1E3-AB79-3DF1-B595-549DFFDF3D36
Kernel slide: 0x0000000005000000
Kernel text base: 0xffffff8005200000
System model name: MacBookPro8,1 (Mac-94245B3640C91C81)

System uptime in nanoseconds: 2694854627711
last loaded kext at 286824468579: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f86e20000, size 65536)
last unloaded kext at 347781062097: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f86e20000, size 57344)
loaded kexts:
com.webroot.driver.SecureAnywhere 104
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.AudioAUUC 1.60
com.apple.driver.IOBluetoothA2DPAudioDriver 4.1.4f2
com.apple.iokit.IOBluetoothSerialManager 4.1.4f2
com.apple.driver.AGPM 100.12.87
com.apple.driver.AppleMikeyHIDDriver 122
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleUpstreamUserClient 3.5.10
com.apple.driver.AppleMikeyDriver 2.3.7fc4
com.apple.driver.AppleIntelHD3000Graphics 8.1.2
com.apple.driver.AppleSMCLMU 2.0.3d0
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.AppleBacklight 170.2.5
com.apple.driver.AppleMCCSControl 1.1.11
com.apple.driver.AppleIntelSNBGraphicsFB 8.1.2
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.1.4f2
com.apple.driver.AppleHDA 2.3.7fc4
com.apple.driver.AppleLPC 1.6.0
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.ApplePolicyControl 3.4.5
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.SMCMotionSensor 3.0.3d1
com.apple.driver.AppleUSBTCButtons 237.1
com.apple.driver.AppleUSBTCKeyboard 237.1
com.apple.driver.AppleIRController 320.15
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 34
com.apple.iokit.SCSITaskUserClient 3.5.5
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.3.1
com.apple.driver.AppleUSBHub 5.5.5
com.apple.driver.AirPort.Brcm4331 615.20.17
com.apple.iokit.AppleBCM5701Ethernet 3.6.1b4
com.apple.driver.AppleFWOHCI 4.9.6
com.apple.driver.AppleAHCIPort 2.5.2
com.apple.driver.AppleSDXC 1.4.2
com.apple.driver.AppleUSBEHCI 5.5.0
com.apple.driver.AppleEFINVRAM 1.7
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleACPIButtons 1.7
com.apple.driver.AppleRTC 1.5
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 1.9
com.apple.driver.AppleACPIEC 1.7
com.apple.driver.AppleAPIC 1.6
com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0
com.apple.nke.applicationfirewall 4.0.39
com.apple.security.quarantine 2.1
com.apple.driver.AppleIntelCPUPowerManagement 196.0.0
com.apple.iokit.IOSerialFamily 10.0.6
com.apple.kext.triggers 1.0
com.apple.driver.AppleSMBusPCI 1.0.11d0
com.apple.driver.AppleSMBusController 1.0.11d0
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.1.4f2
com.apple.driver.DspFuncLib 2.3.7fc4
com.apple.iokit.IOAudioFamily 1.8.9fc11
com.apple.kext.OSvKernDSPLib 1.6
com.apple.driver.AppleBacklightExpert 1.0.4
com.apple.iokit.IOSurface 86.0.4
com.apple.iokit.IOBluetoothFamily 4.1.4f2
com.apple.driver.AppleGraphicsControl 3.4.5
com.apple.iokit.IONDRVSupport 2.3.7
com.apple.driver.AppleHDAController 2.3.7fc4
com.apple.iokit.IOGraphicsFamily 2.3.7
com.apple.iokit.IOHDAFamily 2.3.7fc4
com.apple.iokit.IOFireWireIP 2.2.5
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.IOPlatformPluginFamily 5.3.0d51
com.apple.driver.AppleSMC 3.1.4d2
com.apple.driver.AppleThunderboltDPInAdapter 1.8.9
com.apple.driver.AppleThunderboltDPAdapterFamily 1.8.9
com.apple.driver.AppleThunderboltPCIDownAdapter 1.2.6
com.apple.driver.AppleUSBMultitouch 237.3
com.apple.iokit.IOUSBHIDDriver 5.2.5
com.apple.driver.AppleUSBMergeNub 5.5.5
com.apple.driver.AppleUSBComposite 5.2.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.5
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.iokit.IOAHCISerialATAPI 2.5.1
com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.5
com.apple.driver.AppleThunderboltNHI 1.7.8
com.apple.iokit.IOThunderboltFamily 2.4.0
com.apple.iokit.IO80211Family 530.4
com.apple.iokit.IOUSBUserClient 5.5.5
com.apple.iokit.IOEthernetAVBController 1.0.2b1
com.apple.iokit.IONetworkingFamily 3.0
com.apple.iokit.IOFireWireFamily 4.5.5
com.apple.iokit.IOAHCIFamily 2.3.1
com.apple.iokit.IOUSBFamily 5.6.0
com.apple.driver.AppleEFIRuntime 1.7
com.apple.iokit.IOHIDFamily 1.8.1
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 220.3
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.DiskImages 345
com.apple.iokit.IOStorageFamily 1.8
com.apple.driver.AppleKeyStore 28.21
com.apple.driver.AppleACPIPlatform 1.7
com.apple.iokit.IOPCIFamily 2.7.3
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
Model: MacBookPro8,1, BootROM MBP81.0047.B27, 2 processors, Intel Core i5, 2.3 GHz, 4 GB, SMC 1.68f99
Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 384 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353737334448302D4348392020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353737334448302D4348392020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.100.17)
Bluetooth: Version 4.1.4f2 12041, 2 service, 18 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: Hitachi HTS545032B9A302, 320.07 GB
Serial ATA Device: OPTIARC DVD RW AD-5970H
USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfd100000 / 2
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd110000 / 3
USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8509, 0xfa200000 / 3
USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfa100000 / 2
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 5
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821a, 0xfa113000 / 7
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0245, 0xfa120000 / 4



From Log file in Sys Preferences
Panic (system crashes) log:

Source: /Library/Logs/DiagnosticReports/Kernel_2013-06-20-175929_Jason-Sabbouhs-MacBook-Pro.panic
Size: 7 KB (6,714 bytes)
Last Modified: 6/20/13 5:59 PM
Recent Contents: Thu Jun 20 17:59:27 2013
panic(cpu 1 caller 0xffffff80052b8655): Kernel trap at 0xffffff800555d04e, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x0000000000000168, CR3: 0x0000000003037046, CR4: 0x00000000000606e0
RAX: 0xffffff801078ddc8, RBX: 0x0000000000000000, RCX: 0x00000000031f0000, RDX: 0xffffff800fa54580
RSP: 0xffffff8078083890, RBP: 0xffffff80780838a0, RSI: 0x000000000000009d, RDI: 0xffffff800fa54580
R8: 0xffffff80129bc6c8, R9: 0x0000000000000000, R10: 0xffffff80109ee620, R11: 0x0000000000000001
R12: 0x0000000000000020, R13: 0xffffff8078083984, R14: 0x0000000000000000, R15: 0xffffff8010da8808
RFL: 0x0000000000010246, RIP: 0xffffff800555d04e, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000000000168, Error code: 0x0000000000000000, Fault CPU: 0x1

Backtrace (CPU 1), Frame : Return Address
0xffffff8078083530 : 0xffffff800521d626
0xffffff80780835a0 : 0xffffff80052b8655
0xffffff8078083770 : 0xffffff80052ce17d
0xffffff8078083790 : 0xffffff800555d04e
0xffffff80780838a0 : 0xffffff7f85899f61
0xffffff80780838d0 : 0xffffff7f8589a5cf
0xffffff8078083900 : 0xffffff8005540db1
0xffffff8078083960 : 0xffffff80052f517b
0xffffff80780839b0 : 0xffffff80052eb4bb
0xffffff8078083a30 : 0xffffff80052eae1e
0xffffff8078083af0 : 0xffffff8005308ea0
0xffffff8078083b90 : 0xffffff80052fb839
0xffffff8078083c40 : 0xffffff80052fc004
0xffffff8078083f50 : 0xffffff80055e16aa
0xffffff8078083fb0 : 0xffffff80052ce9c3
Kernel Extensions in backtrace:
com.webroot.driver.SecureAnywhere(104.0)[4516877C-BD60-3F95-93D2-D2A9EC8F0A00]@0xffffff7f85898000->0xffffff7f8589cfff
dependency: com.apple.iokit.IOHIDFamily(1.8.1)[F0B6DA72-B1C1-3816-AC9F-5F1C12E8A7DD]@0xffffff7f85818000

BSD process name corresponding to current thread: talagent

Mac OS version:
12E55

Kernel version:
Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64
Kernel UUID: 896CB1E3-AB79-3DF1-B595-549DFFDF3D36
Kernel slide: 0x0000000005000000
Kernel text base: 0xffffff8005200000
System model name: MacBookPro8,1 (Mac-94245B3640C91C81)

System uptime in nanoseconds: 2694854627711
last loaded kext at 286824468579: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f86e20000, size 65536)
last unloaded kext at 347781062097: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f86e20000, size 57344)
loaded kexts:
com.webroot.driver.SecureAnywhere 104
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.AudioAUUC 1.60
com.apple.driver.IOBluetoothA2DPAudioDriver 4.1.4f2
com.apple.iokit.IOBluetoothSerialManager 4.1.4f2
com.apple.driver.AGPM 100.12.87
com.apple.driver.AppleMikeyHIDDriver 122
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleUpstreamUserClient 3.5.10
com.apple.driver.AppleMikeyDriver 2.3.7fc4
com.apple.driver.AppleIntelHD3000Graphics 8.1.2
com.apple.driver.AppleSMCLMU 2.0.3d0
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.AppleBacklight 170.2.5
com.apple.driver.AppleMCCSControl 1.1.11
com.apple.driver.AppleIntelSNBGraphicsFB 8.1.2
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.1.4f2
com.apple.driver.AppleHDA 2.3.7fc4
com.apple.driver.AppleLPC 1.6.0
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.ApplePolicyControl 3.4.5
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.SMCMotionSensor 3.0.3d1
com.apple.driver.AppleUSBTCButtons 237.1
com.apple.driver.AppleUSBTCKeyboard 237.1
com.apple.driver.AppleIRController 320.15
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 34
com.apple.iokit.SCSITaskUserClient 3.5.5
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.3.1
com.apple.driver.AppleUSBHub 5.5.5
com.apple.driver.AirPort.Brcm4331 615.20.17
com.apple.iokit.AppleBCM5701Ethernet 3.6.1b4
com.apple.driver.AppleFWOHCI 4.9.6
com.apple.driver.AppleAHCIPort 2.5.2
com.apple.driver.AppleSDXC 1.4.2
com.apple.driver.AppleUSBEHCI 5.5.0
com.apple.driver.AppleEFINVRAM 1.7
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleACPIButtons 1.7
com.apple.driver.AppleRTC 1.5
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 1.9
com.apple.driver.AppleACPIEC 1.7
com.apple.driver.AppleAPIC 1.6
com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0
com.apple.nke.applicationfirewall 4.0.39
com.apple.security.quarantine 2.1
com.apple.driver.AppleIntelCPUPowerManagement 196.0.0
com.apple.iokit.IOSerialFamily 10.0.6
com.apple.kext.triggers 1.0
com.apple.driver.AppleSMBusPCI 1.0.11d0
com.apple.driver.AppleSMBusController 1.0.11d0
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.1.4f2
com.apple.driver.DspFuncLib 2.3.7fc4
com.apple.iokit.IOAudioFamily 1.8.9fc11
com.apple.kext.OSvKernDSPLib 1.6
com.apple.driver.AppleBacklightExpert 1.0.4
com.apple.iokit.IOSurface 86.0.4
com.apple.iokit.IOBluetoothFamily 4.1.4f2
com.apple.driver.AppleGraphicsControl 3.4.5
com.apple.iokit.IONDRVSupport 2.3.7
com.apple.driver.AppleHDAController 2.3.7fc4
com.apple.iokit.IOGraphicsFamily 2.3.7
com.apple.iokit.IOHDAFamily 2.3.7fc4
com.apple.iokit.IOFireWireIP 2.2.5
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.IOPlatformPluginFamily 5.3.0d51
com.apple.driver.AppleSMC 3.1.4d2
com.apple.driver.AppleThunderboltDPInAdapter 1.8.9
com.apple.driver.AppleThunderboltDPAdapterFamily 1.8.9
com.apple.driver.AppleThunderboltPCIDownAdapter 1.2.6
com.apple.driver.AppleUSBMultitouch 237.3
com.apple.iokit.IOUSBHIDDriver 5.2.5
com.apple.driver.AppleUSBMergeNub 5.5.5
com.apple.driver.AppleUSBComposite 5.2.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.5
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.iokit.IOAHCISerialATAPI 2.5.1
com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.5
com.apple.driver.AppleThunderboltNHI 1.7.8
com.apple.iokit.IOThunderboltFamily 2.4.0
com.apple.iokit.IO80211Family 530.4
com.apple.iokit.IOUSBUserClient 5.5.5
com.apple.iokit.IOEthernetAVBController 1.0.2b1
com.apple.iokit.IONetworkingFamily 3.0
com.apple.iokit.IOFireWireFamily 4.5.5
com.apple.iokit.IOAHCIFamily 2.3.1
com.apple.iokit.IOUSBFamily 5.6.0
com.apple.driver.AppleEFIRuntime 1.7
com.apple.iokit.IOHIDFamily 1.8.1
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 220.3
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.DiskImages 345
com.apple.iokit.IOStorageFamily 1.8
com.apple.driver.AppleKeyStore 28.21
com.apple.driver.AppleACPIPlatform 1.7
com.apple.iokit.IOPCIFamily 2.7.3
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
 
The culprit may be your "wonderful" antivirus software.
That's the clue when you see:
Kernel Extensions in backtrace:
com.webroot.driver.SecureAnywhere(104.0) ...
Click to expand...

If you MUST use THAT software, and no other brands of AV software, then _verify_ that you have the most up-to-date version. There may be an automatic updater, or a "check for updates" in the menus for that software.

Another test would be to REMOVE your antivirus software (temporarily) to check if your system behaves better.
If there's really no change, even after uninstalling your anti-virus app, and the symptoms continue with the same kernel crash - then a good next step would be to download and install your current combined updater for OS X, which you can get here: http://support.apple.com/kb/DL1659

The reason that's a good idea - the combined updater has been known for years to do some internal checks as it installs, and can often clear out strange problems that suddenly appear - and is worth trying.
 
DeltaMac said:
The culprit may be your "wonderful" antivirus software.
That's the clue when you see:


If you MUST use THAT software, and no other brands of AV software, then _verify_ that you have the most up-to-date version. There may be an automatic updater, or a "check for updates" in the menus for that software.

Another test would be to REMOVE your antivirus software (temporarily) to check if your system behaves better.
If there's really no change, even after uninstalling your anti-virus app, and the symptoms continue with the same kernel crash - then a good next step would be to download and install your current combined updater for OS X, which you can get here: http://support.apple.com/kb/DL1659

The reason that's a good idea - the combined updater has been known for years to do some internal checks as it installs, and can often clear out strange problems that suddenly appear - and is worth trying.
Click to expand...


Thanks DeltaMac,

I will try your suggestion(s) and repost in the future after confirming whether or not the problem still persists. If it happens to be webroot do you recommend any other antivirus flavor that you may have used in the past?
 
Just my opinion - all third-party AV solutions for the Mac cause more issues than they solve, mostly for performance - so I don't recommend any at all. You are much better off with nothing other than what Apple provides with the built-in xprotect, which is always there in the system, and updates itself automatically.
It's just unfortunate when schools, or businesses choose to be ignorant about how the Mac operates, and require antivirus with no real technical reason.
Please don't misunderstand - I don't believe that OS X is invulnerable - there are threats against the Mac, with a variety of different methods, and the various AV solutions do have SOME use, but they also tend to affect system performance, which can be a bigger annoyance than any virus/trojan that might be out there.
However, as I am still a realist about this, then I would suggest either Sophos antivirus, or ClamXav, which is open source (free).
Sophos seems to be more troublesome recently, from what I read at the various download sites, but I only install it to run a full scan a couple of times a year, then uninstall it after a few days. ClamXav is still a good choice, I think.
 
This may seem like a stupid question, but how the hell are They [Tm.--Ed.] going to know whether or not you are using anti-virus software on a Mac on a campus?

Other than that, I use Sophos which has only found virus attachments sent to a "catcher e-mail account"--used to catch and report/torment scam artists. 99.9973% of the time the "Super Anti-Virus" Yahoo! employs misses the attachment because it is compressed. So, in order for the PC user to get infected, he has to download it, THEN decompress it. Yes . . . I know there are anti-virus programs which can scan compressed files. My point is, this happens about once or twice a year. Even then, the only reason I would "check" the download is to report it. Most sane people simply delete the spam.

I have not had a problem with Sophos but, really, there is no need for it. Only if I take this axe handle and start hitting myself on the head until I think U2 is a band worth listening to would I ever consider forwarding an e-mail to someone else. That is about the only danger I can see for the Mac user, sending beastie to someone else with a PC: "Hey, the FBI in Lagos is sending me a Fed Ex form because I apparently won the Irish National Lottery. Do I need to fill it out in Helvetica?"

Other than that, I have helped a few who . . . um . . .
e9677b70.gif
downloaded A Necessary Codec so they could . . . you know . . . view "educational videos" that for some reason involve whipped cream and Your Mom [Stop that!--Ed.]. Such is a Trojan that can do all sort of things mentioned in the "Virus" thread--such as redirecting--DNS Changing--to other . . . um . . . "Educational Video Sites" . . . some without Your Mom.

:)

So, really, if there is no way of them knowing you are running the thing on campus, I would not bother. Another thing you could consider--if they check this--is sitting down with whomever is a Power That Be in IT on campus to explain the situation. Even send him HERE.

--J.D.
 
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