Pricey crime kit adds ‘McRAT’ Java zero-day four days after patch

  • Liam Tung (CSO Online)
  • — 11 March, 2013 10:03

In less than one week, the high-priced commercial exploit kit known as “Cool” has added an exploit for the Java zero-day flaw affecting Web browser plugins that Oracle patched last Tuesday.

The makers of Cool may have illustrated why it costs $10,000 per month to rent compared with last year’s most prevalent exploit kit, Blackhole, which goes for less than a tenth of the price.

French security researcher Kafeine discovered Cool added an exploit for Java flaw CVE-2013-1493 this weekend, just four days after Oracle delivered a fix for Java SE 7 Update 15 and Java SE 6 Update 41 in Web browsers.

Oracle patched the flaw because attackers were using it in targeted campaigns to install the McRAT Trojan, but the inclusion of the attack code in Cool will help install the widely-distributed threat, Reveton, the malware behind fake law enforcement fines and lock screens plaguing PCs across the globe.

An exploit for the Java flaw was expected, but the speed of its inclusion in Cool is remarkable because working attack code for the flaw has yet to be included in the Metasploit exploit database, which usually precedes the inclusion of exploits in dozens of crime kits like Cool.

“For almost all CVEs after disclosure, if it’s not in Metasploit, it [takes] around month. After Metasploit it's a matter of days,” Kafeine told CSO Australia. “So in this case, four to five days to update [an exploit kit] is a really short timeframe,” said the researcher.

Java remains a favourite amongst exploit kit vendors, since there are regular flaws affecting the browser plugin, the plugin is enabled on billions of PCs, and patching is often not immediate.

In mid-February several exploit kits including Cool added an attack for Java flaw CVE-2013-0431 affecting Java 7 Update 11 that Oracle patched on February 1.

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

Tags: security, Java zero-day, McRAT, Oracle

Hackers try to blackmail plastic surgeon after stealing 500,000 patient records

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

SECURE Email Gateway

Clearswift SECURE Email Gateway is an effective and resilient email gateway for 50 to 50,000 users.

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.