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SWF_EXPLOIT.SMB

October 09, 2012
 Analysis by: Christopher Daniel So
 ALIASES:

Exploit:SWF/CVE-2011-2107.A (Microsoft), Trojan Horse (Symantec), Exploit-CVE2011-2107 (McAfee)

 PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Propagates via software vulnerabilities

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

  TECHNICAL DETAILS

File Size:

Varies

File Type:

SWF

Memory Resident:

No

Initial Samples Received Date:

17 Jun 2011

Arrival Details

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

NOTES:

This Trojan is a specially crafted Flash file that can inject a forwarding address into the Gmail account settings of an unsuspecting user, allowing the remote malicious user to view all emails sent to the unsuspecting user's account.

It exploits the following vulnerability:

  • CVE-2011-2107
More information on this vulnerability can be found below:

  SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

8.246.06

FIRST VSAPI PATTERN DATE:

24 Jun 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

Close all opened browser windows

Step 3

Scan your computer with your Trend Micro product to delete files detected as SWF_EXPLOIT.SMB. 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 4

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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