arrow_back
search
close

JS_EXPLOIT.SMJM

October 08, 2012
 Analysis by: Michael Cabel
 Modified by: Christopher Daniel So
 ALIASES:

Exploit:JS/CVE-2010-0886 (Microsoft), Exploit-CVE2010-0886 (McAfee), Exploit.Java.CVE-2010-0886.a (Kaspersky), JS/Exploit.JavaDepKit.A trojan (Nod32), Troj/ExpJS-W (Sophos), Exploit.Java.CVE_2010_0886.A (ClamAV), Trojan.HTML.JavaEx (Sunbelt)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • 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.

As of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

JS

Memory Resident:

No

Initial Samples Received Date:

20 Jan 2011

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.

Download Routine

This Trojan connects to the following website(s) to download and execute a malicious file:

  • http://{random Web site}:8080/{BLOCKED}e.php?id=9&pid=1&1=1

After successfully exploiting the said vulnerability, this malware connects to the following URLs to possibly download other malicious files:

  • http://{random IP address}/public/001.jar

As of this writing, the said sites are inaccessible.

Other Details

More information on this vulnerability can be found below:

  SOLUTION

Minimum Scan Engine:

8.900

VSAPI PATTERN File:

7.792.09

VSAPI PATTERN Date:

25 Jan 2011

VSAPI PATTERN Date:

1/25/2011 12:00:00 AM

FIRST VSAPI PATTERN FILE:

7.780.10

FIRST VSAPI PATTERN DATE:

20 Jan 2011

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

Scan your computer with your Trend Micro product to delete files detected as JS_EXPLOIT.SMJM. 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 3

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. Oracle Critical Patch Updates and Security Alerts


Did this description help? Tell us how we did.