SWF_EXPLOIT.YYLV

September 27, 2016
 Analysis by: Cris Nowell Pantanilla
 ALIASES:

Trojan.Swifi (Symantec), Exploit-SWF.bh (McAfee)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

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

It is a component of other malware.

It exploits a vulnerability identified as in a zero-day attack.

  TECHNICAL DETAILS

File Size:

33,591 bytes

File Type:

SWF

Memory Resident:

No

Initial Samples Received Date:

18 Jul 2016

Payload:

Compromises system security

Arrival Details

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

Installation

This Trojan is a component of other malware.

Other Details

This Trojan exploits a zero-day vulnerability. More information on the said vulnerability can be found in the following pages:

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

12.694.08

FIRST VSAPI PATTERN DATE:

18 Jul 2016

VSAPI OPR PATTERN File:

12.695.00

VSAPI OPR PATTERN Date:

19 Jul 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 SWF_EXPLOIT.YYLV. 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.  APSB15-27


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