TROJ_DELF.PQM

October 08, 2012
 Analysis by: Sabrina Lei Sioting
 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

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It arrives as a component bundled with malware/grayware packages.

It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size:

209,920 bytes

File Type:

DLL

Memory Resident:

No

Initial Samples Received Date:

15 Apr 2010

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It arrives as a component bundled with malware/grayware packages.

Other System Modifications

This Trojan adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings
AutoConfigURL = http://ns1.natalnosso.info:8082/windows.pac

Other Details

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

  SOLUTION

Minimum Scan Engine:

8.900

VSAPI PATTERN File:

6.998.01

VSAPI PATTERN Date:

15 Apr 2010

VSAPI PATTERN Date:

4/15/2010 12:00:00 AM

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

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

 
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
    AutoConfigURL = http://{BLOCKED}1.natalnosso.info:8082/windows.pac

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_DELF.PQM. 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.


Did this description help? Tell us how we did.