Analysis by: Roland Marco Dela Paz
ALIASES:

Exploit:Java/CVE-2012-0507.BB (Microsoft); Exploit.Java.CVE-2012-0507.ft (Kaspersky)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet

This Trojan is a Java component of the black hole exploit kit.

This Trojan executes when a user accesses certain websites where it is hosted.

It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

  TECHNICAL DETAILS

File Size: 19,733 bytes
File Type: JAR
Memory Resident: No
Initial Samples Received Date: 11 May 2012
Payload: Downloads files

Arrival Details

This Trojan executes when a user accesses certain websites where it is hosted.

It may be downloaded from the following remote sites:

  • {BLOCKED}.{BLOCKED}.28.16

Download Routine

This Trojan accesses the following websites to download files:

  • http://{BLOCKED}.{BLOCKED}.28.16:8080/q.php?f=ba33e&e=2 - detected as TSPY_ZBOT.JBR

It takes advantage of the following software vulnerabilities to download possibly malicious files:

It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

NOTES:

This Trojan is a Java component of the black hole exploit kit.

  SOLUTION

Minimum Scan Engine: 9.200
FIRST VSAPI PATTERN FILE: 8.997.00
FIRST VSAPI PATTERN DATE: 13 May 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

Remove malware/grayware files dropped/downloaded by JAVA_BLACOLE.AE

     TSPY_ZBOT.JBR

Step 3

Close all opened browser windows

Step 4

Scan your computer with your Trend Micro product to delete files detected as JAVA_BLACOLE.AE. 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 5

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.


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