TROJ_PIDIEF.DFH

October 08, 2012
 Analysis by: Roland Marco Dela Paz
 ALIASES:

Sophos : Troj/PDFJs-RE; Kaspersky : Exploit.JS.Pdfka.diw

 PLATFORM:

Windows 2000, XP, 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 attachment to mass-mailed email messages.

  TECHNICAL DETAILS

File Size:

74,321 bytes

File Type:

PDF

Initial Samples Received Date:

19 Apr 2011

Payload:

Connects to URLs/Ips

Arrival Details

This Trojan arrives as attachment to mass-mailed email messages.

Download Routine

This Trojan connects to the following website(s) to download and execute a malicious file:

  • http://{BLOCKED}z.cc/a/l.php?x=4004

NOTES:
As of writing, however, the above-mentioned site redirects to http://{BLOCKED}portal.information.com/?o_id=164060&domainname=referer_detect, which in turn resolves to http://www.{BLOCKED}gen.com/?design_id=4&domainname=information.com&a_id=14840. As per current analysis, no malicious activities were found in these sites.

  SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

7.988.02

FIRST VSAPI PATTERN DATE:

19 Apr 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

Scan your computer with your Trend Micro product to delete files detected as TROJ_PIDIEF.DFH. 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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