INF_KOOBFACE.A

October 21, 2015
 Analysis by: Sammy Chua
 ALIASES:

INF.Autorun (v) (Sunbelt); IS/AutoRun (not disinfectable) (FPROT)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan may be dropped by other malware.

  TECHNICAL DETAILS

File Size:

1,645 bytes

File Type:

INF

Memory Resident:

No

Initial Samples Received Date:

14 Oct 2015

Arrival Details

This Trojan may be dropped by other malware.

Propagation

The said .INF file contains the following strings:

{garbage characters}{garbage characters}{garbage characters}
[autorun]
{garbage characters}{garbage characters}
open=E:\Router\Settings\LaunchU3.exe
{garbage characters}{garbage characters}
icon=%SystemRoot%\system32\SHELL32.dll,7
{garbage characters}{garbage characters}
UseAutoPlay=1
{garbage characters}
shell\Explore\Command=E:\Router\Settings\LaunchU3.exe
{garbage characters}
shell\open\command=E:\Router\Settings\LaunchU3.exe
{garbage characters}

Other Details

This Trojan opens the following files:

  • E:\Router\Settings\LaunchU3.exe

  SOLUTION

Minimum Scan Engine:

9.750

FIRST VSAPI PATTERN FILE:

11.982.03

FIRST VSAPI PATTERN DATE:

15 Oct 2015

VSAPI OPR PATTERN File:

11.983.00

VSAPI OPR PATTERN Date:

16 Oct 2015

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Scan your computer with your Trend Micro product to delete files detected as INF_KOOBFACE.A. 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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