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How to clean a browser hijack from my iMac?

My iMac has picked up some kind of malware that affects all browsers. If I click a select a bookmark, it takes me to the page, but when I click on a link on the site, it prepends "http://dca14d4e.megaline.co/url/" to the actual link, and connects me to an advertisement page for Linkbucks. If I manually remove the added text, I can still browse to the intended site.


I have found advice on how to remove this from a Windows PC, but nothing on removing it from a Mac. Any assistance is appreciated.

iMac, OS X Mavericks (10.9.1)

Posted on Dec 28, 2013 11:23 AM

Reply
26 replies

Jan 1, 2014 8:48 PM in response to pandu7

pandu7 wrote:


I reset the Movistar PE router to factory settings, reconfigured the network, and most importantly changed all the admin passwords I could find. I left its default DNS settings alone, pointing to the defaults it received from its own DHCP/PPPOE connection from the ISP. On the Airport Extreme, I changed it from bridging mode to DHCP & NAT, creating an isolated network, and I set the DNS to OpenDNS for that network.

If the Movistar PE is also using NAT then you will be warned by an amber dot that you're network is double NAT'd which is a minor deficiency but may cause issues. NAT provides your incoming firewall, so you need to have at least one in operation, but as long as nothing else is on the Movistar network, the AEBS will provide all the protection you need. I think if it were me I would simply bridge out the Movistar and let the AEBS do all the router duties.

My conclusion is that it had to have been a hijack of the Movistar router, rather than something on the computers themselves.

I would certainly agree with you. Hopefully you're new setup will protect against however that happened.

Jan 11, 2014 5:50 PM in response to MadMacs0

As I can see there are a few common factors at issue: I'm an Movistar Perú user too !!!.


I don't see any solution to trying to scan each Mac (or PC) at home. The problem is at borders routers at Movistar Perú, or his Nominum servers where poisoned. I know they got some claims from users with same behaviour.


I changed the xDSL CPE by another one (I got it from other anterior "live"), different vendor, model, etc. And the issue persists.


Again, I'm sure the issue is at carrier level.


Any suggestion is welcome.



hugardo.

Jan 11, 2014 10:55 PM in response to pandu7

pandu7 wrote:


After uninstalling Firefox and reinstalling it, the same redirect continued to happen. I suspect that Firefox leaves certain config files on the computer even after uninstall, and the bug must be buried in there somewhere.

A couple of ideas on this one:


- DNS Flusher add-on.


- Hold down your option key and select "Library" from the Finder's Go menu.

Now navigate to /Application Support/Firefox/Profiles/<randomnalphanumerics>.default/

If you find a "Users.js" file:

  • drag it to the desktop and restart Firefox to test
  • open Users.js with TextEdit then copy and paste the contents here.

Jul 30, 2014 1:48 AM in response to Linc Davis

Boot Mode: Normal



Pageouts (MiB): 1074



Loaded extrinsic user agents:



com.google.GoogleTalkPluginD.42976.48D09D41-8845-4781-A4E6-CDA884661A35

com.sony.PMBPortable.AutoRun

com.google.keystone.system.agent

com.cisco.anyconnect.gui

com.adobe.CS5ServiceManager

com.akamai.client.plist

com.adobe.ARM.925793fb327152fd34795896fa1fb9ffa268b2a852256fe56609efa3



Per-user login items:



Citations

Citations

iTunesHelper

Skype.app

VMware Fusion Helper

Google Drive

Dropbox



Safari extensions:



torrenthandler



Restricted user files: 3574



Extrinsic loadable bundles:



/System/Library/Extensions/CiscoVPN.kext

(com.cisco.nke.ipsec)

/System/Library/Extensions/hp_qc_io_enabler.kext

(com.hp.hpio.hp_psa530_630_io_enabler)

Library/Address Book Plug-Ins/SkypeABDialer.bundle

(com.skype.skypeabdialer)

Library/Address Book Plug-Ins/SkypeABSMS.bundle

(com.skype.skypeabsms)

Library/Internet Plug-Ins/fbplugin_1_0_3.plugin

(com.facebook.plugin)

Library/Internet Plug-Ins/Picasa.plugin

(com.google.PicasaPlugin)

Library/PreferencePanes/AkamaiNetSession.prefPane

(com.yourcompany.AkamaiNetSession)

/Library/Audio/MIDI Drivers/EmagicUSBMIDIDriver.plugin

(info.emagic.driver.unitor)

/Library/Internet Plug-Ins/AdobePDFViewer.plugin

(com.adobe.acrobat.pdfviewer)

/Library/Internet Plug-Ins/DirectorShockwave.plugin

(com.adobe.shockwave.pluginshim)

/Library/Internet Plug-Ins/eMusicRemote.plugin

(com.emusic.plugins.emp.mac)

/Library/Internet Plug-Ins/Flash Player.plugin

(com.macromedia.Flash Player.plugin)

/Library/Internet Plug-Ins/Flip4Mac WMV Plugin.plugin

(net.telestream.wmv.plugin)

/Library/Internet Plug-Ins/Flip4Mac WMV Plugin.webplugin

(net.telestream.wmv.webplugin)

/Library/Internet Plug-Ins/googletalkbrowserplugin.plugin

(com.google.googletalkbrowserplugin)

/Library/Internet Plug-Ins/o1dbrowserplugin.plugin

(com.google.o1dbrowserplugin)

/Library/Internet Plug-Ins/Silverlight.plugin

(com.microsoft.SilverlightPlugin)

/Library/Internet Plug-Ins (Disabled)/Flash Player.plugin

(com.macromedia.Flash Player.plugin)

/Library/PreferencePanes/Flash Player.prefPane

(com.adobe.flashplayerpreferences)

/Library/PreferencePanes/Flip4Mac WMV.prefPane

(net.telestream.wmv.prefpane)

/Library/QuickLook/VMware Fusion QuickLook.qlgenerator

(com.vmware.fusion.quicklook)



Font problems: 8



Library/LaunchAgents:



com.adobe.ARM.925793fb327152fd34795896fa1fb9ffa268b2a852256fe56609efa3.plist

com.akamai.client.plist

com.apple.CSConfigDotMacCert-kate.stonge@me.com-SharedServices.Agent.plist



/Library/LaunchAgents:



com.adobe.AAM.Updater-1.0.plist

com.adobe.CS5ServiceManager.plist

com.cisco.anyconnect.gui.plist

com.google.keystone.agent.plist

com.sony.PMBPortable.AutoRun.plist



/Library/LaunchDaemons:



com.adobe.fpsaud.plist

com.bombich.ccc.plist

com.cisco.anyconnect.vpnagentd.plist

com.google.keystone.daemon.plist

com.vmware.launchd.vmware.plist



/Library/PrivilegedHelperTools:



com.bombich.ccc

Jul 30, 2014 2:11 AM in response to Kate.S.Fromcanada

Linc hardly ever accepts requests from other users and may not even be following it any more.


This forum works best when you start a new discussion topic and clearly explain your problem before posting what you have. That way you will get the best set of eyes on your problem more quickly and Linc is far more likely to contribute.


At this point I have no idea what problem you are having and what you are seeing that prompted you to join this conversation.

How to clean a browser hijack from my iMac?

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