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JAVA_EXPLOYT.YYKD

February 17, 2016
 Analysis by: Rhena Inocencio
 ALIASES:

Exploit.Java.CVE-2012-1723.pi (Kaspersky), Exploit-CVE2012-1723.j (McAfee)

 PLATFORM:

Windows, Linux

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

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

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

  TECHNICAL DETAILS

File Size:

2,155 bytes

File Type:

JAR, Java Class

Initial Samples Received Date:

05 Feb 2016

Arrival Details

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

Other Details

This backdoor does the following:

  • It is capable of opening a shell and may execute any command from a remote user:
    • cmd.exe is executed in Windows
    • /bin/sh is executed in Linux
  • It accepts the following input:
    • IP address
    • port

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

12.318.04

FIRST VSAPI PATTERN DATE:

05 Feb 2016

VSAPI OPR PATTERN File:

12.319.00

VSAPI OPR PATTERN Date:

06 Feb 2016

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

Scan your computer with your Trend Micro product to delete files detected as JAVA_EXPLOYT.YYKD. 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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