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RTKT_DUQU.B

October 09, 2012
 Analysis by: Erika Bianca Mendoza
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This Trojan may be dropped by other malware.

  TECHNICAL DETAILS

File Size:

24,576 bytes

File Type:

SYS

Initial Samples Received Date:

01 Nov 2011

Arrival Details

This Trojan may be dropped by other malware.

NOTES:

This Trojan is a component of DUQU malware familiy which loads the following DLL:

  • TROJ_DUQU.B

As a result, the malicious behaviors of the said file are also exhibited in the system.

  SOLUTION

Minimum Scan Engine:

9.200

FIRST VSAPI PATTERN FILE:

8.540.07

FIRST VSAPI PATTERN DATE:

01 Nov 2011

VSAPI OPR PATTERN File:

8.541.00

VSAPI OPR PATTERN Date:

01 Nov 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

Restart in Safe Mode

[ Learn More ]

Step 3

Remove malware files dropped/downloaded by RTKT_DUQU.B

Step 4

Restart in normal mode and scan your computer with your Trend Micro product for files detected as RTKT_DUQU.B. 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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