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

Tamaño del archivo 1,645 bytes
Tipo de archivo INF
Residente en memoria No
Fecha de recepción de las muestras iniciales 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

Motor de exploración mínimo 9.750
Primer archivo de patrones de VSAPI 11.982.03
Primera fecha de publicación de patrones de VSAPI 15 Oct 2015
Versión de patrones OPR de VSAPI 11.983.00
Fecha de publicación de patrones OPR de VSAPI 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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