Microsoft Security Essentials update blocks Google.com

False-positive forces users to make exceptions.

Microsoft's latest Security Essentials update inadvertently warned Internet Explorer (IE) users off Google.com.

Microsoft Security Essentials customers across the world began reporting on its user forum Wednesday that Google.com was being blocked within IE by a pop up message warning that it contained the Blackhole exploit kit, considered to be a serious malware threat.

What has turned out to be false security alerts -- labelled false-positives by antivirus companies -- began occurring shortly after Microsoft's latest security update, which fixed 21 vulnerabilities across its software.

While the warning could have meant Google.com was hosting a legitimate threat, the company has since clarified that on February 14 it introduced an incorrect detection for "Exploit:JS/Blacole.BW", referring to Blackhole.

Microsoft has recommended that Security Essentials customers download the latest definitions, noting that signature versions 1.119.1988.0 and higher include the update that corrects the problem.

The error on Redmond's part forced some customers to add Google.com and its related local domains such as Google.com.au to an exception list that bypassed its own definition.

Microsoft's false-positive error was first reported by security blogger, Brian Krebs.

Follow @CSO_Australia and sign up to the CSO Australia newsletter.

Symantec draws new security picture

READ THIS ARTICLE
DO NOT SHOW THIS BOX AGAIN [ x ]

Comments

Mark

1

Yeah like it was "accidental", just like Whitney "accidentally" took a whole heap of tablets.....

Allen

2

I din't get the security prompt for google search bar or in chrome but i got the MSE Alert in IE ,so guess this is a miss lead news.This might happened as a default.

PACQUIAO VS BRADLEY

3

Good post. I learn something new and challenging on sites I stumbleupon everyday.
It's always exciting to read content from other authors and use something from their websites.

Car Removal Adelaide

4

Thank you for providing this information within your
site.

Car Removal Adelaide

5

Thank you for providing this information within your site.

Comments are now closed.
CSO Corporate Partners
  • Webroot
  • Trend Micro
  • NetIQ
rhs_login_lockGet exclusive access to CSO, invitation only events, reports & analysis.
CSO Directory

Trend Micro Mobile Security

Comprehensive enterprise protection for mobile devices

Latest Jobs
Security Awareness Tip

Incident handling is a vast topic, but here are a few tips for you to consider in your incident response. I hope you never have to use them, but the odds are at some point you will and I hope being ready saves you pain (or your job!).


  1. Have an incident response plan.

  2. Pre-define your incident response team 

  3. Define your approach: watch and learn or contain and recover.

  4. Pre-distribute call cards.

  5. Forensic and incident response data capture.

  6. Get your users on-side.

  7. Know how to report crimes and engage law enforcement. 

  8. Practice makes perfect.

For the full breakdown on this article

Security ABC Guides

Warning: Tips for secure mobile holiday shopping

I’m dating myself, but I remember when holiday shopping involved pouring through ads in the Sunday paper, placing actual phone calls from tethered land lines to research product stock and availability, and actually driving places to pick things up. Now, holiday shoppers can do all of that from a smartphone or tablet in a few seconds, but there are some security pitfalls to be aware of.