TROJ_SIREFEF.PDK

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

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan may be dropped by other malware.

It exports functions used by other malware.

  TECHNICAL DETAILS

File Size:

116,224 bytes

File Type:

DLL

Memory Resident:

Yes

Initial Samples Received Date:

27 Apr 2012

Arrival Details

This Trojan may be dropped by other malware.

Other Details

This Trojan exports functions used by other malware.

  SOLUTION

Minimum Scan Engine:

9.200

FIRST VSAPI PATTERN FILE:

8.946.03

FIRST VSAPI PATTERN DATE:

27 Apr 2012

VSAPI OPR PATTERN File:

8.947.00

VSAPI OPR PATTERN Date:

28 Apr 2012

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 and note files detected as TROJ_SIREFEF.PDK

Step 3

Restart in Safe Mode

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Step 4

Search and delete the file detected as TROJ_SIREFEF.PDK

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Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files in the search result.

Step 5

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