Analysis by: Cris Nowell Pantanilla
ALIASES:

[MICROSOFT] Exploit:Java/Blacole.EE,[KASPERSKY] Exploit.Java.CVE-2010-0094.ar, [NOD32] Java/Exploit.CVE-2011-3544.AYtrojan

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet

This is the Trend Micro detection for malicious Java Class that attempts to exploit an unknown vulnerability in the Java Runtime Environment component in Oracle Java SE JDK and JRE 7 and 6 Update 27 and earlier, which may execute arbitrary codes on the affected system. More information about this vulnerability can be viewed using the following link:

This Trojan may be hosted on a website and run when a user accesses the said website.

  TECHNICAL DETAILS

File Size: Varies
File Type: Java Class
Memory Resident: No
Initial Samples Received Date: 08 Mar 2012

Arrival Details

This Trojan may be hosted on a website and run when a user accesses the said website.

NOTES:

This is the Trend Micro detection for malicious Java Class that attempts to exploit an unknown vulnerability in the Java Runtime Environment component in Oracle Java SE JDK and JRE 7 and 6 Update 27 and earlier, which may execute arbitrary codes on the affected system. More information about this vulnerability can be viewed using the following link:

It may be used as a component of other malware.

  SOLUTION

Minimum Scan Engine: 9.200
FIRST VSAPI PATTERN FILE: 8.824.01
FIRST VSAPI PATTERN DATE: 08 Mar 2012
VSAPI OPR PATTERN File: 8.825.00
VSAPI OPR PATTERN Date: 09 Mar 2012

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Close all opened browser windows

Step 3

Scan your computer with your Trend Micro product to delete files detected as JAVA_BLACOLE.CX. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.

Step 4

Download and apply this security patch Refrain from using these products until the appropriate patches have been installed. Trend Micro advises users to download critical patches upon release by vendors.  http://www.oracle.com/technetwork/topics/security/javacpuoct2011-443431.html


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