cancel
Showing results for 
Search instead for 
Did you mean: 
Reliable Contributor SafeBoot
Reliable Contributor
Report Inappropriate Content
Message 11 of 12

Re: Malvertising campaign delivers digitally signed CryptoWall ransomware

Jump to solution
Highlighted
Reliable Contributor tao
Reliable Contributor
Report Inappropriate Content
Message 12 of 12

Re: Malvertising campaign delivers digitally signed CryptoWall ransomware

Jump to solution

Per Story:

"The digital signing of CryptoWall samples is likely an attempt to evade antivirus detection. The success of this approach is debatable since this practice is no longer uncommon among malware developers and many security products account for it. However, there might be cases where signing malware with certificates stolen from trusted developers might bypass some application whitelisting rules.

The new CryptoWall samples were not detected by any of the 55 antivirus products used on the VirusTotal website when they were discovered Sunday, the Barracuda researchers said. The detection rate has slightly increased since then, they said."


From another story: http://threatpost.com/new-signed-version-of-cryptowall-ransomware-on-the-loose

"Researchers at Barracuda Labs discovered the campaign this week, finding that it affected five separate sites that use the Zedo ad network. The sites include hindustantimes[.]com, bollywoodhungama[.]com, one[.]co[.]il, codingforums[.]com, and mawdoo3[.]com. The attack serves browsers with some obfuscated Javascript that kicks off a series of redirections that eventually results in the browser hitting a site that serves the CryptoWall malware."

If this information was helpful or has answered your question, please select Accept as Solution. This will assist other memebers

Community Help Hub

    New to the forums or need help finding your way around the forums? There's a whole hub of community resources to help you.

  • Find Forum FAQs
  • Learn How to Earn Badges
  • Ask for Help
Go to Community Help

Join the Community

    Thousands of customers use the McAfee Community for peer-to-peer and expert product support. Enjoy these benefits with a free membership:

  • Get helpful solutions from McAfee experts.
  • Stay connected to product conversations that matter to you.
  • Participate in product groups led by McAfee employees.
Join the Community
Join the Community