Viruses on MacBooks...

So, I've had my Mac for just under a year now, and up until about a month ago I've always had virus protection on it. The guy at the apple store told me to uninstall it because it would do more harm then good, so after it expired I got rid of it. It turns out, I'm a little too paranoid. I downloaded iAntivirus from the App Store and I've been running searches on my computer from time to time. I just went to Google and saved some wallpapers to a folder and I'm starting to regret it. (I did the control click thing when i saved them, expect for one which I accidentally downloaded it into my "downloads" folder, I don't know if this matters or not. Oh, and I didn't even think to pay attention to the sites, which is probably one of the reasons I'm so concerned...) So, do I really need to be worried about viruses on this thing, or am I just stuck in the whole "PC" mindset? I know you guys get irritated with this quesiton, but i really would like any input...
Also, should I buy an AntiVirus software for this or not? iAnitvius said my Mac was clean, but has anyone else actually used this program?

See my Mac Malware Guide for a detailed answer to your question.
Regarding iAntivirus - that's almost completely worthless. I just tested a bunch of anti-virus apps against 188 samples of Mac malware, and iAntivirus only detected 18 of them. See:
Mac anti-virus testing 2014

Similar Messages

What is the best anti~virus for macbook pro?

What is the best anti~virus foe macbook pro?

None whatsoever. I'm sure that you've heard the line that "Macs don't get viruses"? That's almost true - Macs can be infected with malware, however, and can pass viruses onto PCs. See Thomas Reed's Mac Malware Guide. The only two virus packages that are usually recommended are both free - Sophos and ClamXav. If you feel that you need AV software, try one or both.
Good luck,
Clinton

Removal of central security service randomware virus from macbook air

How to remove Central Security Service randomware virus from MacBook Air OS X 10.8.5

Go step by step and test.
1. Force Quit .
    Press command + option + esc keys together at the same time. Wait.
    When Force Quit window appears, select the Safari if not already.
    Press Force Quit button at the bottom of the window.   Wait.
    Safari will quit.
    Relaunch Safari holding the shift key down.
2. Safari > Preferences > Extensions
    Turn those off and try Safari.
3. Safari > Preferences > Privacy > Cookies and other website data:
    Press “Remove all website data” button.
4. If adware is installed without your knowledge,
    download AdwareMedic by clicking “Download ” from here
    http://www.adwaremedic.com
   Install , open, and run it by clicking “Scan for Adware” button   to remove adware.
   Once done scanning and removing the adware, quit the app by clicking AdMedic in the menubar
    and selecting “Quit AdwareMedic”.

I transferred big files from windows to my macbook, should I install anti-virus on macbook pro?

I transferred big files from windows to my macbook because I wanted to retire my old PC, should I install anti-virus on macbook pro because of those files I moved? Would you recommend? Or should I feel comfortable since I'm using OS X Mavericks? Anybody with the same case? Thanks.

Files moved from a Windows machine may contain malware, but that malware would not be a threat to your Mac. Windows malware cannot infect a Mac.
As for protecting your Mac against Mac malware, see my Mac Malware Guide.

Virus for macbook pro warning. ran software and didn't detect anything buy i keep getting pop ups

i had a virus warning for my macbook pro. ran anti virus software but nothing was detected. however i keep getting pop ups.

Harry
You Mac does not have any viruses as there are no viruses for MacOSX. What you have a malware scam. Did you download MacDefender, or MacProtector? To get rid of them, open activity monitor and look for the process MacDefender, or MacProtector, double click the process and force quit. Go to system preferences to accounts, login items and remove MacDefender, or MacProtector by highlighting it and hitting the minus sign. Go to your applications folder and drag MacDefender or MacProtector to the trash. Open finder and do a search for Macdefender or MacProtector trash any related files. Do the same with a Spotlight search, it is the little magnyfing glass far top right in the menubar. Lastly, go open finder, select your user folder, go to library then loo in aoplication support and remove MacDefender or Mac Protector from there, close that folder then go to preferences and remove any preference file for MacDefender or MacProtector. Hope this helps.
Joseph

Virus Protection, MacBook 13 inch, early 2008, OS X 10.7.5

I have a MacBook 13 inch, early 2008, OS X 10.7.5; Processor 2.4 GHz Intel Core 2 Duo. What does Apple recommend for virus protection? I tried s few times to download AVG for MAC Lion, but it kept locking up my computer.

The software built into Mac OS X. Unless you're running Windows on the computer or frequently exchange files with people using Windows, you don't need anything else.
(124365)

Anti Virus in MacBook Pro

Hi All,
I am new to MacBook Pro and i just want to know whether Macbook pro comes with any default antivirus software or we need to buy and install.

Welcome to Apple Discussions
The Mac doesn't come with any anti-virus software as they don't catch colds
Unless you plan to run Windows under Boot Camp or Emulation then you need not worry about this at all, if you do run Windows then install and use AVG or some other freeware protection.

Additional virus protection MacBook

I am an new mac owner, all my previous notebooks and pc's have been windows based, do i need to install additional virus protection on my MacBook, we were sold Trend Micro Smart Surfing for Mac but i read mixed the reviews about the product.
Regards

The only reason you would need an antivirus for mac, is as a courtesy to any windows users you send / share files with.
If you wantting your own protection, sig is right. You'd be more protected by not installing it.

Best application for anti-virus for macbook pro

Hi I just recently bought a macbook pro and I was wondering what appliction is best for a anti-virus ??

OS X already includes everything it needs to protect itself from viruses and malware. Keep it that way with software updates from Apple. Ill-conceived third party "anti-virus" garbage products are the primary reason for Mac instability, crashes and related problems reported on this site.
A much better question is "how should I protect my Mac":
Never install any product that claims to "speed up", "clean up", "optimize", or "accelerate" your Mac. Without exception, they will do the opposite.
Never install pirated or "cracked" software, software obtained from dubious websites, or other questionable sources. Illegally obtained software is almost certain to contain malware.
Don’t supply your password in response to a popup window requesting it, unless you know what it is and the reason your credentials are required.
Don’t open email attachments from email addresses that you do not recognize, or click links contained in an email:
Most of these are scams that direct you to fraudulent sites that attempt to convince you to disclose personal information.
Such "phishing" attempts are the 21st century equivalent of a social exploit that has existed since the dawn of civilization. Don’t fall for it.
Apple will never ask you to reveal personal information in an email. If you receive an unexpected email from Apple saying your account will be closed unless you take immediate action, just ignore it. If your iTunes or App Store account becomes disabled for valid reasons, you will know when you try to buy something or log in to this support site, and are unable to.
Don’t install browser extensions unless you understand their purpose. Go to the Safari menu > Preferences > Extensions. If you see any extensions that you do not recognize or understand, simply click the Uninstall button and they will be gone.
Don’t install Java unless you are certain that you need it:
Java, a non-Apple product, is a potential vector for malware. If you are required to use Java, be mindful of that possibility.
Disable Java in Safari > Preferences > Security.
Despite its name JavaScript is unrelated to Java. No malware can infect your Mac through JavaScript. It’s OK to leave it enabled.
Block browser popups: Safari menu > Preferences > Security > and check "Block popup windows":
Popup windows are useful and required for some websites, but popups have devolved to become a common means to deliver targeted advertising that you probably do not want.
Popups themselves cannot infect your Mac, but many contain resource-hungry code that will slow down Internet browsing.
If you ever see a popup indicating it detected registry errors, that your Mac is infected with some ick, or that you won some prize, it is 100% fraudulent. Ignore it.
Ignore hyperventilating popular media outlets that thrive by promoting fear and discord with entertainment products arrogantly presented as "news". Learn what real threats actually exist and how to arm yourself against them:
The most serious threat to your data security is phishing. To date, most of these attempts have been pathetic and are easily recognized, but that is likely to change in the future as criminals become more clever.
OS X viruses do not exist, but intentionally malicious or poorly written code, created by either nefarious or inept individuals, is nothing new.
Never install something without first knowing what it is, what it does, how it works, and how to get rid of it when you don’t want it any more.
If you elect to use "anti-virus" software, familiarize yourself with its limitations and potential to cause adverse effects, and apply the principle immediately preceding this one.
Most such utilities will only slow down and destabilize your Mac while they look for viruses that do not exist, conveying no benefit whatsoever - other than to make you "feel good" about security, when you should actually be exercising sound judgment, derived from accurate knowledge, based on verifiable facts.
Do install updates from Apple as they become available. No one knows more about Macs and how to protect them than the company that builds them.
Summary: Use common sense and caution when you use your Mac, just like you would in any social context. There is no product, utility, or magic talisman that can protect you from all the evils of mankind.

Possible adware or virus on Macbook Air

My macbook air (purchased late 2013) runs extremely slow, the fan runs at a high rate, and a popup window opens for a computer cleaning site when I turn on my laptop. I assume this means some kind of adware or maybe a virus? What should I do?

1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem. But with the aid of the test results, the solution may take a few minutes, instead of hours or days.
Don't be put off by the complexity of these instructions. The process is much less complicated than the description. You do harder tasks with the computer all the time.
2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.
There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
3. Below are instructions to run a UNIX shell script, a type of program. As I wrote above, it changes nothing. It doesn't send or receive any data on the network. All it does is to generate a human-readable report on the state of the computer. That report goes nowhere unless you choose to share it. If you prefer, you can act on it yourself without disclosing the contents to me or anyone else.
You should be wondering whether you can believe me, and whether it's safe to run a program at the behest of a stranger. In general, no, it's not safe and I don't encourage it.
In this case, however, there are a couple of ways for you to decide whether the program is safe without having to trust me. First, you can read it. Unlike an application that you download and click to run, it's transparent, so anyone with the necessary skill can verify what it does.
You may not be able to understand the script yourself. But variations of it have been posted on this website thousands of times over a period of years. The site is hosted by Apple, which does not allow it to be used to distribute harmful software. Any one of the millions of registered users could have read the script and raised the alarm if it was harmful. Then I would not be here now and you would not be reading this message. See, for example, this discussion.
Nevertheless, if you can't satisfy yourself that these instructions are safe, don't follow them. Ask for other options.
4. Here's a summary of what you need to do, if you choose to proceed:
☞ Copy a line of text in this window to the Clipboard.
☞ Paste into the window of another application.
☞ Wait for the test to run. It usually takes a few minutes.
☞ Paste the results, which will have been copied automatically, back into a reply on this page.
The sequence is: copy, paste, wait, paste again. You don't need to copy a second time. Details follow.
5. You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” mode, under the conditions in which the problem is reproduced. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
6. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
7. The script is a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, though you may not see all of it in the browser window, and you can then copy it. If you try to select the line by dragging across the part you can see, you won't get all of it.
Triple-click anywhere in the line of text below on this page to select it:
PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/libexec;clear;cd;p=({Soft,Hard}ware Memory Diagnostics Power FireWire Thunderbolt USB Bluetooth SerialATA Extensions Applications Frameworks PrefPane Fonts 1024 85 percent 20480 1 MB/s 25000 ports KiB/s DYLD_INSERT_LIBRARIES\ DYLD_LIBRARY_PATH 10 "` route -n get default|awk '/e:/{print $2}' `" 25 N\\/A down up 102400 25600 recvfrom sendto CFBundleIdentifier 25 25 25 1000 MB 'com.adobe.AAM.Updater-1.0 com.adobe.AAM.Updater-1.0 com.adobe.AdobeCreativeCloud com.adobe.CS4ServiceManager com.adobe.CS5ServiceManager com.adobe.fpsaud com.adobe.SwitchBoard com.adobe.SwitchBoard com.apple.aelwriter com.apple.AirPortBaseStationAgent com.apple.FolderActions.enabled com.apple.installer.osmessagetracing com.apple.mrt.uiagent com.apple.ReportCrash.Self com.apple.rpmuxd com.apple.SafariNotificationAgent com.apple.usbmuxd com.citrixonline.GoToMeeting.G2MUpdate com.google.keystone.agent com.google.keystone.daemon com.microsoft.office.licensing.helper com.oracle.java.Helper-Tool com.oracle.java.JavaUpdateHelper com.oracle.java.JavaUpdateHelper org.macosforge.xquartz.privileged_startx org.macosforge.xquartz.privileged_startx org.macosforge.xquartz.startx' '879294308 4071182229 461455494 3627668074 1083382502 1274181950 1855907737 2758863019 1848501757 464843899 3694147963 1233118628 2456546649 2806998573 2778718105 2636415542 842973933 2051385900 3301885676 891055588 998894468 695903914 1443423563 4136085286 523110921 2883943871 3873345487' 51 5120 files 4 1000 25 5120 -\\t PlistBuddy{,' 2>&1'}' -c Print' OSBundleRequired 1168 20 ' function f() { n++;sub(/^/,"^");gsub(/\./,"\\.");gsub(/\+/,"\\+");gsub(/\-/,"\\-");gsub(/\?/,"\\?");print|"sort|uniq";};function g(N,d) { if(n<N) print d;};' Info.plist );N5=${#p[@]};p[N5]=` networksetup -listnetworkserviceorder|awk ' NR>1 { sub(/^$[0-9]+$ /,"");n=$0;getline;} $NF=="'${p[26]}')" { sub(/.$/,"",$NF);print n;exit;} ' `;f=(\\n%s{:\ ,\\n\\n}%s\\n '\nRAM details\n%s\n' %s\ %s 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/Temp|emac/{next};/(etc|Preferences|Launch[AD].+)\// { sub(".(/private)?","");f();} END { split("'"${p[41]}"'",b);split("'"${p[42]}"'",c);for(i in b) print b[i]"\.plist\t"c[i];g(500,"Launch");} ' ' /^\/(Ap|Dev|Inc|Prev)/d;/((iTu|ok).+dle|\.(component|mailbundle|mdimporter|plugin|qlgenerator|saver|wdgt))$/p;' 's/Pr.+n //p' ' BEGIN{FS=":"};{ if($1~/\.kext$/) { s=system("'"${p[51]}"'\\ :'${p[53]}' "$1"/*/I*|grep -q Sa");if(!s) $1=$1" S";if(!$2) $2="'"${p[28]}"'";printf("'"${f[4]}"'",$1,$2);} else print;} ' p '{print $3"\t"$1}' 's/\'$'\t''.+//p' 's/1/On/p' '/Prox.+: [^0]/p' '$2>'${p[43]}'{$2=$2-1;print}' ' BEGIN { i="'${p[26]}'";M1='${p[16]}';M2='${p[18]}';M3='${p[31]}';M4='${p[32]}';} !/^A/{next};/%/ { getline;if($5<M1) a="user "$2"%, system "$4"%";} /disk0/&&$4>M2 { b=$3" ops/s, "$4" blocks/s";} $2==i { if(c) { d=$3+$4+$5+$6;next;};if($4>M3||$6>M4) c=int($4/1024)" in, "int($6/1024)" out";} END { if(a) print "CPU: "a;if(b) print "I/O: "b;if(c) print "Net: "c" (KiB/s)";if(d) print "Net errors: "d" packets/s";} ' ' /r\[0\] /&&$NF!~/^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./ { print $NF;exit;} ' ' !/^T/ { printf "(static)";exit;} ' '/apsd|BKAg|OpenD/!s/:.+//p' ' (/k:/&& $3!~/(255\.){3}0/)||(/v6:/&&$2!~/A/) ' ' $1=="op" {m=$3};$1~"lN" {N=$2};$1~"lR" {S=$2};$1~"Tx" {T=$2};$1~/^st/ {s=$2};$1~"li"&&$3!~"wpa2" {printf("'"${f[9]}"'",toupper($3))};END { if(S*N*T&&(S-N<'${p[25]}'||T<'${p[55]}')) printf("'"${f[8]}"'",S,N,T);if(s~/^r/&&m!~/^st/) printf("'"${f[10]}"'",m);} ' ' BEGIN { FS=":";p="uniq -c|sed -E '"'s/ +\$[0-9]+\$\$.+\$/\\\2 x\\\1/;s/x1$//'"'";} { n=split($3,a,".");sub(/_2[01].+/,"",$3);print $2" "$3" "a[n]$1|p;b=b$1;} END { close(p);if(b) print("\n\t* Code injection");} ' ' NR!=4{next} {$NF/=10240} '"`S0 27 23`" ' END { if($3~/[0-9]/)print$3;} ' ' BEGIN { L='${p[36]}';} !/^[[:space:]]*(#.*)?$/ { l++;if(l<=L) f=f"\n "$0;} END { F=FILENAME;if(!F) exit;if(!f) f="\n [N/A]";"cksum "F|getline C;split(C, A);C=A[1];"stat -f%Sm "F|getline D;"file -b "F|getline T;if(T~/^Apple b/) { f="";l=0;while("'"${p[51]}"' "F|getline g) { l++;if(l<=L) f=f"\n "g;};};if(T!~/^(AS.+ (En.+ )?text(, with v.+)?$|(Bo|PO).+ sh.+ text ex|XM)/) F=F"\n '"${p[50]}"'"T;printf("'"${f[6]}"'",F,D,C,f);if(l>L) printf("'"${f[7]}"'",l-L);} ' ' s/^ ?n...://p;s/^ ?p...:/-'$'\t''/p;' 's/0/Off/p' ' END{print NR} ' ' /id: N|te: Y/{i++} END{print i} ' ' $0!~/^ *$/ { p="'"${p[52]}"'\\ :'"${p[35]}"' \""$0"\"/*/'${p[57]}'";p|getline;close(p);if($0~/ /||$0=="") $0="'"${p[28]}"'";print;};' '/ en/!s/\.//p' ' NR!=13{next};{sub(/[+-M]$/,"",$NF)};'"`S0 39 40`" ' $10~/$L/&&$9!~"localhost" { sub(/.+:/,"",$9);print $1": "$9|"sort|uniq";} ' '/^ +r/s/.+"(.+)".+/\1/p' 's/(.+\.wdgt)\/(Contents\/)?'${p[57]}'$/\1/p' 's/^.+\/(.+)\.wdgt$/\1/p' ' /l: /{ /DVD/d;s/.+: //;b0'$'\n'' };/s: /{ /V/d;s/^ */- /;H;};$b0'$'\n'' d;:0'$'\n'' x;/APPLE [^:]+$/d;p;' ' /^find: /d;p;' "`S0 44 45`" ' BEGIN{FS="= "} /Path/{print $2} ' ' /^ *$/d;s/^ */ /;' ' s/^.+ |\(.+$$//g;p ' '/\.(appex|pluginkit)\/Contents\/'${p[57]}'$/p' ' /2/{print "WARN"};/4/{print "CRITICAL"};' ' /EVHF|MACR|^s/d;s/^.+: //p;' ' $3~/^[1-9][0-9]{0,2}(\.[1-9][0-9]{0,2}){2}$/ { i++;n=n"\n"$1"\t"$3;} END { if(i>1) print n;} ' ' s/:[^:]+$//;s/ +([0-9]+)(.+)/\2: \1/p;' ' { gsub(/[()"]/,"",$3);if($2!="="||!$3) $3="N/A";print $3;} ' ' /es: ./{ s/^.+://;b0'$'\n'' };/^ +C.+ted: +[NY]/H;/:$/b0'$'\n'' d;:0'$'\n'' x;/: +N/d;s/\n.+//p;' ' 1d;/:$/b0'$'\n'' $b0'$'\n'' /(D|^ *Loc.+): /{ s/^.+: //;H;};/(By|m): /H;d;:0'$'\n'' x;/[my]: [AM]|^\/Vo/d;s/(^|\n) [ -~]+//g;s/(.+)\n(.+)/\2:\1/;s/\n//g;/[ -~]/p;' 's/$/:(0|\-(4[34])?)$/p' ' BEGIN{FS=":"};{ if($2) { $2="status: "$2;printf("'"${f[4]}"'",$1,$2);} else print $1;} ' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps crontab iotop top pkgutil "${p[52]}\\" whoami cksum kextstat launchctl smcDiagnose sysctl\ -n defaults\ read stat lsbom 'mdfind -onlyin /' ' for i in ${p[24]};do ${c1[18]} ${c2[27]} $i;done;' pluginkit scutil dtrace profiles sed\ -En awk /S*/*/P*/*/*/C*/*/airport networksetup mdutil lsof test osascript\ -e netstat mdls kextfind );S1() { printf kMDItemContentTypeTree=com.apple.$1;};S2() { printf 'L*/Ca*/com.ap*.Saf*/E*/* -d 1 -name '${p[57]}' -exec '"${c1[14]}"' :'$1' {} \;|uniq';};c2=(com.apple.loginwindow\ LoginHook ' /L*/P*/loginw*' "'tell app \"System Events\" to get properties of login items'|tr , \\\n" "`S2 CFBundleDisplayName`" '~ $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $' '-F \$Message -k Sender kernel -k Message CReq "a underr|I/O e"|sort|uniq -c' :${p[35]} :Label '{/,}L*/{Con,Pref}* -type f ! -size 0 -name *.plist -exec plutil -s {} \;' "-f'%N: %l' Desktop L*/Keyc*" therm sysload boot-args status " -F '\$Time \$(RefProc): \$Message' -k Sender Req 'fsev|kern|launchd' -k RefProc Rne 'Aq|WebK' -k Message Rne '08012|Goog|ksadm|probe|Roame|SMC:|smcD|sserti|suhel| VALI|ver-r|xpma' -k Message Req 'abn|bad |Beac|caug|corru|dead[^bl]|FAIL|fail|GPU |hfs: Ru|idle ex|inval|jnl:|last value [1-9]|lv_c|NVDA$|pagin|pci pa|proc: t|Roamed|rror|SL|TCON|Throttli|tim(ed? ?|ing )o|WARN' " '-du -n DEV -n EDEV 1 10' 'acrx -o comm,ruid,%cpu' '-t1 10 1' '-f -pfc /var/db/r*/com.apple.*.{BS,Bas,Es,J,OSXU,Rem,up}*.bom' '{/,}L*/Lo*/Diag* -type f -regex .\*[cght] ! -name .?\* ! -name \*ag \( -exec grep -lq "^Thread c" {} \; -exec printf \* \; -o -true $ -execdir stat -f:%Sc:%N -t%F {} \;|sort -t: -k2 |tail -n'${p[38]} '/S*/*/Ca*/*xpc* >&- ||echo No' '-L /{S*/,}L*/StartupItems -type f -exec file {} +' "`S1 "{bundle,mach-o-dylib}"`" "`S2 ${p[35]}`" "/e*/{auto,{cron,fs}tab,hosts,{[lp],sy}*.conf,mach_i*/*,pam.d/*,ssh{,d}_config,*.local} {,/usr/local}/etc/periodic/*/* /L*/P*{,/*}/com.a*.{Bo,sec*.ap}*t {/S*/,/,}L*/Lau*/*t .launchd.conf" list getenv /Library/Preferences/com.apple.alf\ globalstate --proxy '-n get default' -I --dns -get{dnsservers,info}\ "${p[N5]}" -P -m\ / '' -n1 '-R -l1 -n1 -o prt -stats command,uid,prt' '--regexp --files com.apple.pkg.*|sort|uniq' -kl -l -s\ / '-R -l1 -n1 -o mem -stats command,uid,mem' '+c0 -i4TCP:0-1023' com.apple.dashboard\ layer-gadgets '-d /L*/Mana*/$USER&&echo On' '-app Safari WebKitDNSPrefetchingEnabled' "+c0 -l|awk '{print(\$1,\$3)}'|sort|uniq -c|sort -n|tail -1|awk '{print(\$2,\$3,\$1)}'" -m 'L*/{Con*/*/Data/L*/,}Pref* -type f -size 0c -name *.plist.???????|wc -l' kern.memorystatus_vm_pressure_level '3>&1 >&- 2>&3' " -F '\$Time \$Message' -k Sender kernel -k Message CSeq 'n Cause: -' " -i '-app Safari UserStyleSheetEnabled' -name\ kMDItem${p[35]} '-nl -print' '-F \$Sender -k Level Nle 3 -k Facility CReq "apple\.(bird|i?clou)"|sort|uniq -c' );N1=${#c2[@]};for j in {0..14};do c2[N1+j]=SP${p[j]}DataType;done;N2=${#c2[@]};for j in 0 1;do c2[N2+j]="-n ' syscall::'${p[33+j]}':return { @out[execname,uid]=sum(arg0) } tick-10sec { trunc(@out,1);exit(0);} '";done;l=({Restricted\ ,Lock,Pro}files POST Battery {Safari,App,{Bad,Loaded}\ kernel}\ extensions Heat System\ load boot\ args FileVault Diagnostic\ reports Log {Free\ space,Swap}' (MiB)' Activity 'CPU per process' Login\ hook 'I/O per process' Mach\ ports User Daemons Agents XPC\ cache Startup\ items {Admin,Root}\ access Bundles {,Inserted\ }dylibs Stylesheet Font\ issues Firewall Proxies DNS TCP/IP Wi-Fi 'Elapsed time (sec)' {Root,User}\ crontab {Global,User}' login items' Spotlight Memory Listeners Widgets Parental\ Controls Prefetching Nets Descriptors Bad\ plists {I/O,iCloud}\ errors SMC Shutdowns 'High file counts' Memory\ pressure );N3=${#l[@]};for i in {0..8};do l[N3+i]=${p[5+i]};done;N4=${#l[@]};for j in 0 1;do l[N4+j]="Current ${p[29+j]}stream data";done;A0() { Q=5;v[2]=1;id -G|grep -qw 80;v[1]=$?;((v[1]))||{ Q=7;sudo true;v[2]=$?;((v[2]))||Q=8;};v[3]=`date +%s`;clear >&-;date '+Start time: %T %D%n';printf '[Process started]\n\n'>&4;printf 'Revision: %s\n\n' ${p[54]};};for i in 0 1;do eval ' A'$((1+i))'() { v=` eval "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};A'$((3+i))'() { v=` while read i;do [[ "$i" ]]&&eval "${c1[$1]} ${c2[$2]}" \"$i\"|'${c1[30+i]}' "${s[$3]}";done<<<"${v[$4]}" `;[[ "$v" ]];};A'$((5+i))'() { v=` while read i;do '${c1[30+i]}' "${s[$1]}" "$i";done<<<"${v[$2]}" `;[[ "$v" ]];};A'$((7+i))'() { v=` eval sudo "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};';done;A9(){ v=$((`date +%s`-v[3]));};B2(){ v[$1]="$v";};for i in 0 1;do eval ' B'$i'() { v=No;((v['$((i+1))']==0))&&v=;};B'$((3+i))'() { v[$2]=`'${c1[30+i]}' "${s[$3]}"<<<"${v[$1]}"`;} ';done;B5(){ v[$1]="${v[$1]}"$'\n'"${v[$2]}";};B6() { v=` paste -d: <(printf "${v[$1]}") <(printf "${v[$2]}")|awk -F: ' {printf("'"${f[$3]}"'",$1,$2)} ' `;};B7(){ v=`grep -Ev "${v[$1]}"<<<"$v"|sort`;};C0() { [[ "$v" ]]&&sed -E "$s"<<<"$v";};C1() { [[ "$v" ]]&&printf "${f[$1]}" "${l[$2]}" "$v"|sed -E "$s";};C2() { v=`echo $v`;[[ "$v" != 0 ]]&&C1 0 $1;};C3() { v=`sed -E "${s[63]}"<<<"$v"`&&C1 1 $1;};C4() { echo "Part $((++P)) of $Q done at $((`date +%s`-v[3])) sec">&4;};C5() { pbcopy<<<"$o";exit 2>&-;};for i in 1 2 7 8;do for j in 0 2 3;do eval D$i$j'(){ A'$i' $1 $2 $3; C'$j' $4;};';done;done;trap C5 2;o=$({ A0;D20 0 $((N1+1)) 2;D10 0 $N1 1;B0;C2 27;B0&&! B1&&C2 28;D12 15 37 25 22;A1 0 $((N1+2)) 3;C0;D13 0 $((N1+3)) 4 3;D23 0 $((N1+4)) 5 4;D13 0 $((N1+9)) 59 $((N3+4));for i in 0 1 2;do D13 0 $((N1+5+i)) 6 $((N3+i));done;D13 0 $((N1+8)) 71 $((N3+3));D13 1 10 7 9;D13 1 11 8 10;B1&&D73 19 53 67 55;D22 2 12 9 11;D12 3 13 10 12;D23 4 19 44 13;B0&&{ D13 5 5 69 53;D13 5 54 30 56;C4;D23 5 14 12 14;C4;};D22 6 36 13 15;D22 20 52 66 58;D22 7 37 14 16;D23 8 15 38 17;D22 9 16 16 18;C4;B1&&{ D82 35 49 61 51;D82 11 17 17 20;for i in 0 1;do D82 28 $((N2+i)) 45 $((N4+i));done;C4;};D22 12 44 54 45;D22 12 39 15 21;D13 40 58 32 7;A1 13 40 18;B2 4;B3 4 0 19;A3 14 6 32 0;B4 0 5 11;C4;A1 17 41 20;B7 5;C3 8;B4 4 6 21;A3 14 7 32 6;B4 0 7 11;B3 4 0 22;A3 14 6 32 0;B4 0 8 11;B5 7 8;B3 7 7 73;B1&&{ A8 18 26 23;B7 7;B4 0 0 74;C3 23;};A2 18 26 23;B7 7;B4 0 0 74;C3 24;D13 4 21 24 26;B4 4 12 26;C4;for i in {0..3};do A1 0 $((N1+10+i)) 72;B7 12;B4 0 0 31;((i))&&{ B2 14;B4 14 15 52;B6 14 15 4;};C3 $((N3+5+i));done;A1 24 22 29;B7 12;B2 14;A4 39 57 70 0;B2 15;B6 14 15 4;C3 29;C4;B3 4 13 27;A1 24 23 32;B7 13;C3 30;B3 4 0 65;A3 14 6 32 0;B4 0 16 11;A1 26 50 64;B7 16;C3 6;D13 25 37 32 31;A2 23 18 28;B2 16;A2 16 25 33;B7 16;B3 0 0 34;B2 21;A6 47 21&&C0;B1&&{ D73 21 0 32 19;D73 10 42 32 40;D82 29 35 46 2;};D23 14 1 62 42;D12 34 43 53 44;D12 22 20 32 25;D22 0 $((N1+14)) 51 33;D13 4 8 41 52;D12 21 28 35 34;D13 27 29 36 35;A2 27 32 39&&{ B2 19;A2 33 33 40;B2 20;B6 19 20 3;};C2 36;D23 38 55 68 50;D23 33 34 42 37;B1&&D83 35 45 55 46;D23 32 31 43 38;D12 36 47 32 48;D13 10 42 32 41;D13 37 2 48 43;A1 4 3 60;B2 30;A1 4 24 60;B2 31;B6 30 31 4;C3 5;D12 21 56 35 32;D12 21 48 49 49;B3 4 22 57;A1 21 46 56;B7 22;B3 0 0 58;C3 47;D13 5 59 69 54;D22 4 4 50 0;D12 4 51 32 1;D23 22 9 37 57;A9;C2 39;C4;} 4>&2 2>/dev/null;);C5
Copy the selected text to the Clipboard by pressing the key combination command-C.
8. Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
Click anywhere in the Terminal window and paste by pressing command-V. The text you pasted should vanish immediately. If it doesn't, press the return key.
9. If you see an error message in the Terminal window such as "Syntax error" or "Event not found," enter
exec bash
and press return. Then paste the script again.
10. If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. In most cases, the difference is not important. If you don't know the password, or if you prefer not to enter it, just press return three times at the password prompt. Again, the script will still run.
If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
11. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, there will be a series of messages in the Terminal window like this:
[Process started]
Part 1 of 8 done at … sec
Part 8 of 8 done at … sec
[Process completed]
The messages won't be spaced equally apart in time, but they give a rough indication of progress. The total number of parts may be different from what's shown here.
Wait for the final message "Process completed" to appear. If you don't see it within half an hour or so, the test probably won't complete in a reasonable time. In that case, press the key combination control-C or command-period to stop it. Then go to the next step.
12. When the test is complete, or if you stopped it because it was taking too long, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.
At the top of the results, there will be a line that begins with the words "Start time." If you don't see that, but instead see a mass of gibberish, you didn't wait for the "Process completed" message to appear in the Terminal window. Please wait for it and try again.
If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
13. When you post the results, you might see an error message on the web page: "You have included content in your post that is not permitted," or "You are not authorized to post." That's a bug in the forum software. Please post the test results on Pastebin, then post a link here to the page you created.
14. This is a public forum, and others may give you advice based on the results of the test. They speak only for themselves, and I don't necessarily agree with them.
Copyright © 2014, 2015 by Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Use Agreement for the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

Check for bugs/virus on MacBook?

My wife got an email this morning on her MacBook (earthlink account) that looks like someone may have hacked into her or our daughter's email address book. How do we find out if there is a bug or virus on her Macbook that needs to be removed ?

What kind of an e-mail was this, and what about it makes you think of hacking?
If there are indications that your wife's or daughter's e-mail accounts may have been used to send e-mail by someone else, see:
Someone is sending messages from my e-mail address!
If this is just a weird e-mail received from someone in their Address Book, that may be an issue of the sending e-mail account being hacked, or the sender's Windows computer being infected with malware.

Anti virus for macbook pro

i just recently purcahsed the macbook pro and wanted to know if i need to buy anti virus protection. ive had some people tell me that i do need it and some people tell me that i dont. my macbook will be mainly used for business and to pay bills. thank you.

See Here > Antivirus Discussion
More Info Here > http://www.reedcorner.net/mmg/
Mac OS X tends to look after itself...
To keep your Mac Happy... See Here...
http://support.apple.com/kb/HT1147
http://www.thexlab.com/faqs/maintainingmacosx.html
Mac OS X: About background maintenance tasks

Police Central E-crime Unit virus on MacBook Pro?

I got a fake pop-up called Police Central E-crime Unit warning me that my computer had been found visiting malicious sites. I have researched it and it is a virus. I am unable to close safari or visit another webpage. Also, I can't log out, restart or shut down my macbook. I have tried running 2 different antivirus programmes (iAntivirus and Bitdefender) on the whole system but both couldn't find anything. What can I do to get rid of it?

Welcome to Apple Support Communities
If you can use Safari, go to Safari menu (in the menu bar) > Preferences > Privacy, and press "Remove all Website Data". By doing this, you will remove everything related to that website, so now you will be able to close Safari and turn off your computer

Smokeloader virus on MacBook Pro

Dear All,
The IT of my company reported me that my Macbook Pro is infected by a malware calle smookerload 2.
I was surprised, because I do not visit bad web site and I do not have stupid or unsfull software on my Mac. I absolutely use it for professional use.
Can a Mac have a Virus? smokerloader is not a Windows virus?
What can I do?
Cheers

Thomas, hi
This is already too long a tale to recount in full.
But after having my 2009 MBP 500Gb hard drive wiped clean by Apple who agreed with me that "something" was wrong with its impossibly slow operation (They just restored the current iOS Mavericks), and restoring the drive data from a Time Machine backup, I've been having problems occasionally with writing or saving something to my hard drive so yesterday I went to the permissions and changed all of the users there to "read and write".
I operate a small business out of my home, my only contact with the outside world being via the internet/email/etc.
Almost immediately the MBP hard drive went loco again. All sorts of pop up reports about things in the system folder being broken. And then the computer refused to quit applications. Quirky this and quirky that. Immediately seemed to me that it had been infected with something due to my "opening it up to read and write".
Now I can't even get the MBP to restart. I wante dto restart it to at least try using disk utility to fix permissions. I even have an external drive with a system on it. I could have restarted from that and used disk utility to fic the MBP hard drive.
But the MBP simply won't start up. It makes the start-up soound then sits there with the grey apple staring at me and the spinning spinner spinning under it. For over 1/2 hour. I've resorted to my old old PowerBook G4 that I still use as my fax machine.
Are there viruses that could have attacked my MBP?
If I could eliminate that possibility then I'd just take the MBP back to the apple store again for a new exam and repair.
Steve

Access Virus TI & Macbook Pro Mid 2010 model

Hi All,
Ongoing USB related issue here, hoping someone with a similar setup can help out.
I've had issues connecting my Virus TI to my MBP since the day I got it using the Virus Control plugin. I'm using it with Ableton Live 8.2.1 and also have 8.2 installed. There is no issue with the software I'm using or the Virus itself as I've successfully run both on my old Macbook (which I've now sold, grrrr...)
I've been jumping through the hoops Access support have putting up but it seems I can't do anything to get stable performance from the TI. Those familiar with the TI will no doubt also be familiar with dreaded "communication errors" and "sync errors". It seems when I can things working correctly that this is very short lived before one of the aforementioned errors rears its ugly head. Same behaviour when using both USB ports.
My soundcard and the Virus both have up to date drivers. I'm yet to try downgrading the firmware on these devices, and would prefer to do try that as a last resort. I'm thinking there may be some kind of conflict with these devices but am clueless as to how I'd go about fixing it.
I'm unable to locate any drivers/updates for the MBP that might rectify the problem either.
Any help or suggestions would be greatly appreciated.
Cheers,
Shesh.

Hi DaddyPaycheck,
I've done that too.
The TI detects that it's connected to a hub and the VC plugin won't open.
I tested the USB ports last night with the Tech Tool De Luxe suite that came with my apple care plan and everything seems to be working fine so I'm really at a loss as to how to resolve this.
Thanks, I appreciate your efforts.
Shesh

Virus on Macbook Air

If i take my computer to an apple store can they get rid of a possible virus? I am a freshman in college and some of the websites required to do my work required me to turn off my popup blockers. If you could help it would be greatly appreciated. Thank you.

An Apple Store's frequent remedy for nonspecific complaints is to erase your Mac and install an unmodified copy of its operating system. Although it's likely to fix what's wrong with it, that extreme step is seldom required.
Please describe what's wrong with your Mac, in as much detail as you are able. For some suggestions read Writing an effective Apple Support Communities question. It's unclear how a "virus" is related to popup blockers. If there is any requirement at all, it's usually to disable pop-up blocking software, or to choose the equivalent setting in your browser.
Whatever is ailing your Mac is unlikely to be a virus. "Unlikely" in this context means that it has the approximate likelihood as the sun rising in the west tomorrow morning.

Viruses on MacBooks...

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