Bogus Chrome, Firefox extensions pilfer social media accounts

The extensions carry what could be a stolen digital signature, according to Trend Micro

Trend Micro has found two malicious browser extensions that hijack Twitter, Facebook and Google+ accounts.

The attackers plant links on social media sites that, if clicked, implore users to install a video player update. It is a common method hackers use to bait people into downloading malicious software.

The bogus video player update lures people in a macabre manner: it says it leads to a video of a young woman committing suicide, according to Trend's description.

The video player update carries a cryptographic signature that is used to verify that an application came from a certain developer and has not been modified, wrote Don Ladores, a threat response engineer, with Trend.

"It is not yet clear if this signature was fraudulently issued, or a valid organization had their signing key compromised and used for this type of purpose," he wrote.

Hackers often try to steal legitimate digital certificates from other developers in an attempt to make their malware look less suspicious.

If the video update is executed, the malware then installs a bogus Firefox or Chrome extension depending on which browser the victim uses.

The malicious plugins try to appear legitimate, bearing the names Chrome Service Pack 5.0.0 and the Mozilla Service Pack 5.0. Ladores wrote that Google now blocks the extension that uses its name. Another variation of the extension claims it is the F-Secure Security Pack 6.1.0, a fake product from the Finnish security vendor.

The plugins connect to another website and download a configuration file, which allow them to steal the login credentials from a victim's social networking accounts such as Facebook, Google+, and Twitter. The attackers can then perform a variety of actions, such as like pages, share posts, update statuses and post comments, Ladores wrote.

Send news tips and comments to jeremy_kirk@idg.com. Follow me on Twitter: @jeremy_kirk

Join the CSO newsletter!

Error: Please check your email address.

Tags Googletrend microsecurityf-securemozilla

More about FacebookF-SecureGoogleMozillaTrend Micro Australia

Show Comments

Featured Whitepapers

Editor's Recommendations

Solution Centres

Stories by Jeremy Kirk

Latest Videos

  • 150x50

    CSO Webinar: The Human Factor - Your people are your biggest security weakness

    ​Speakers: David Lacey, Researcher and former CISO Royal Mail David Turner - Global Risk Management Expert Mark Guntrip - Group Manager, Email Protection, Proofpoint

    Play Video

  • 150x50

    CSO Webinar: Current ransomware defences are failing – but machine learning can drive a more proactive solution

    Speakers • Ty Miller, Director, Threat Intelligence • Mark Gregory, Leader, Network Engineering Research Group, RMIT • Jeff Lanza, Retired FBI Agent (USA) • Andy Solterbeck, VP Asia Pacific, Cylance • David Braue, CSO MC/Moderator What to expect: ​Hear from industry experts on the local and global ransomware threat landscape. Explore a new approach to dealing with ransomware using machine-learning techniques and by thinking about the problem in a fundamentally different way. Apply techniques for gathering insight into ransomware behaviour and find out what elements must go into a truly effective ransomware defence. Get a first-hand look at how ransomware actually works in practice, and how machine-learning techniques can pick up on its activities long before your employees do.

    Play Video

  • 150x50

    CSO Webinar: Get real about metadata to avoid a false sense of security

    Speakers: • Anthony Caruana – CSO MC and moderator • Ian Farquhar, Worldwide Virtual Security Team Lead, Gigamon • John Lindsay, Former CTO, iiNet • Skeeve Stevens, Futurist, Future Sumo • David Vaile - Vice chair of APF, Co-Convenor of the Cyberspace Law And Policy Community, UNSW Law Faculty This webinar covers: - A 101 on metadata - what it is and how to use it - Insight into a typical attack, what happens and what we would find when looking into the metadata - How to collect metadata, use this to detect attacks and get greater insight into how you can use this to protect your organisation - Learn how much raw data and metadata to retain and how long for - Get a reality check on how you're using your metadata and if this is enough to secure your organisation

    Play Video

  • 150x50

    CSO Webinar: How banking trojans work and how you can stop them

    CSO Webinar: How banking trojans work and how you can stop them Featuring: • John Baird, Director of Global Technology Production, Deutsche Bank • Samantha Macleod, GM Cyber Security, ME Bank • Sherrod DeGrippo, Director of Emerging Threats, Proofpoint (USA)

    Play Video

  • 150x50

    IDG Live Webinar:The right collaboration strategy will help your business take flight

    Speakers - Mike Harris, Engineering Services Manager, Jetstar - Christopher Johnson, IT Director APAC, 20th Century Fox - Brent Maxwell, Director of Information Systems, THE ICONIC - IDG MC/Moderator Anthony Caruana

    Play Video

More videos

Blog Posts

Market Place