Analysis by: Anthony Joe Melgarejo
 Modified by: Jimelle Monteser
ALIASES:

Exploit:Java/CVE-2012-0507.B (Microsoft), JV/Exploit-Blacole.c !! (McAfee), a variant of Java/Exploit.CVE-2012-0507.AG trojan (NOD32), EXP/JAVA.Loader.Gen (Avira), Java.Exploit.CVE-2012-0507.C (Bitdefender), Mal/JavaGen-A (Sophos)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003, Windows 7

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It arrives as a component bundled with malware/grayware packages. It may be hosted on a website and run when a user accesses the said website.

  TECHNICAL DETAILS

File Size: 9,703 bytes
File Type: Java

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It arrives as a component bundled with malware/grayware packages.

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

Download Routine

This Trojan saves the files it downloads using the following names:

  • %User Temp%\mor.exe

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)

Other Details

This Trojan attempts to access the following websites to download files, which are possibly malicious:

  • http://{BLOCKED}ishing.in
  • http://{BLOCKED}st.in

  SOLUTION

Minimum Scan Engine: 9.700
VSAPI OPR PATTERN File: 9.385.00
VSAPI OPR PATTERN Date: 10 Sep 2012

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Close all opened browser windows

Step 3

Scan your computer with your Trend Micro product to delete files detected as JAVA_EXPL.SM6. 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.


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