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Threat Encyclopedia

SWF_EXPLOIT.WMP

ANALYSIS BY

Roland Marco Dela Paz


ALIASES:

Trojan-Dropper.MSWord.SwfDrop.a (Kaspersky)

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 as an embedded .SWF file in bodies of malicious .DOC/.PDF files which Trend Micro detects as any of the following:

It aids in helping its main component in dropping malicious file(s) whose routines are consequently exhibited on the affected system.

This Trojan takes advantage of software vulnerabilities in certain software to drop malicious files. It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

TECHNICAL DETAILS

File Size:

Varies

File Type:

SWF

Memory Resident:

No

Initial Samples Received Date:

12 Apr 2011

Payload:

Drops files

Dropping Routine

This Trojan takes advantage of unknown vulnerabilities in the following software to drop malicious files:

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

NOTES:

It arrives as an embedded .SWF file in bodies of malicious .DOC/.PDF files which Trend Micro detects as any of the following:

It aids in helping its main component in dropping malicious file(s) whose routines are consequently exhibited on the affected system.

SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

8.276.05

FIRST VSAPI PATTERN DATE:

09 Jul 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

Remove malware files dropped/downloaded by SWF_EXPLOIT.WMP

Step 3

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

NOTES:

For updates on available workarounds and patches for this vulnerability, please refer to the following page:


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