VBS_VERECNO.A

April 03, 2014
 Analysis by: Alvin John Nieto
 ALIASES:

Troj/Verecno-A (Sophos), W32/Autorun.worm.aapp (ESET), Trojan:VBS/Verecno.A (Microsoft)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

 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.

It is a component of other malware.

  TECHNICAL DETAILS

File Size:

347 bytes

File Type:

VBS

Initial Samples Received Date:

26 Feb 2014

Arrival Details

This Trojan may be dropped by the following malware:

  • WORM_VERECNO.A

Installation

This Trojan is a component of other malware.

Other Details

This Trojan requires the following additional components to properly run:

  • AutoIt3.exe

NOTES:

This is the Trend Micro detection for .VBS files that are used to execute dropped copies of the malware WORM_VERECNO once its shortcut file is accessed.

As a result, the routines of the main component file is exhibited on the affected machine.