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SWF_EXKIT.EC

March 04, 2016
 PLATFORM:

Windows

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

  • Threat Type: Others

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This malware requires its main component to successfully perform its intended routine. It takes advantage of certain vulnerabilities.

  TECHNICAL DETAILS

File Size:

82,994 bytes

File Type:

SWF

Memory Resident:

Yes

Initial Samples Received Date:

01 Mar 2016

Payload:

Executes arbitrary code

Arrival Details

This malware arrives via the following means:

  • It may be hosted on the following remote site(s):
    • http://{BLOCKED}urk.{BLOCKED}kingseminar.com/water.swf?low=LvjBTAPzft&bar=5xSvyVg4d&month=kUKqj8eup&relationship=&either=ra1tn1bHAD&express=&beautiful=cCr&allow=r3b2V9e

Other Details

This malware requires its main component to successfully perform its intended routine.

It takes advantage of the following vulnerabilities:

  • Adobe Flash Player Vulnerability (CVE-2015-5119)

NOTES:

The SWF file uses the function loadBytes ActionScript3, which is used to load files and/or arbitrary codes.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

12.376.02

FIRST VSAPI PATTERN DATE:

02 Mar 2016

VSAPI OPR PATTERN File:

12.377.00

VSAPI OPR PATTERN Date:

03 Mar 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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Close all opened browser windows

Step 4

Scan your computer with your Trend Micro product to delete files detected as SWF_EXKIT.EC. 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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