Analysis by: Pearl Charlaine Espejo
ALIASES:

Trojan:Win32/Zlader.A (Microsoft); Trojan.Upatre.7044 (DrWeb); BinImage/Dropper (AhnLab-V3); Troj/Mdrop-GUS(Sophos)

 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 arrives as an attachment to email messages spammed by other malware/grayware or malicious users. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  TECHNICAL DETAILS

Tamaño del archivo 85,466 bytes
Tipo de archivo Other
Residente en memoria No
Fecha de recepción de las muestras iniciales 19 Aug 2015

Arrival Details

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

NOTES:
This is the Trend Micro detection for the encrypted file of TROJ_UPATRE.YYSNB.

  SOLUTION

Motor de exploración mínimo 9.750
Primer archivo de patrones de VSAPI 11.864.05
Primera fecha de publicación de patrones de VSAPI 19 Aug 2015
Versión de patrones OPR de VSAPI 11.865.00
Fecha de publicación de patrones OPR de VSAPI 20 Aug 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 TROJ_UPATRENC.YYSNB. 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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