Analysis by: Rhena Inocencio
ALIASES:

RDN/PWS-Banker!g (McAfee), Troj/DwnLdr-KMV (Sophos)

 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:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

As of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size: 151,552 bytes
File Type: EXE
Initial Samples Received Date: 28 Mar 2013

Arrival Details

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

Installation

This Trojan drops the following component file(s):

  • %windows%\{4 random letters}{4 random numbers}.dll
  • %windows%\win{3 random numbers}.tmp

Other System Modifications

This Trojan adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
explorer
FileTray = "win7" (on all platforms)

Download Routine

This Trojan accesses the following websites to download files:

  • http://{BLOCKED}-minhavida.{BLOCKED} 1.f1.k8.com.br/xeon1.jpg

As of this writing, the said sites are inaccessible.

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}xtz.{BLOCKED}8.f1.k8.com.br/getfile3.php?slots={number}&value1={number}&value2={number}