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

Tipo de compactação: 1,645 bytes
Tipo de arquivo: INF
Residente na memória: No
Data de recebimento das amostras iniciais: 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

Mecanismo de varredura mínima: 9.750
Primeiro arquivo padrão VSAPI: 11.982.03
Data do lançamento do primeiro padrão VSAPI: 15 Oct 2015
VSAPI OPR Pattern Version: 11.983.00
VSAPI OPR Pattern veröffentlicht am: 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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