Analysis by: Jaime Benigno Reyes
 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:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

It executes then deletes itself afterward.

  TECHNICAL DETAILS

File Size: 389,632 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 25 Apr 2013

Arrival Details

This spyware 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 spyware drops the following file(s)/component(s):

  • %AppDataLocal%\{random}.{random}

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local on Windows Vista and 7.)

It drops the following copies of itself into the affected system:

  • %Application Data%\{random}\{random}.exe

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)

It creates the following folders:

  • %Application Data%\{random}

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)

It executes then deletes itself afterward.

Autostart Technique

This spyware adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{GUID} = "%Application Data%\{random}\{random}.exe"

Other System Modifications

This spyware adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
{random key}

Other Details

This spyware connects to the following possibly malicious URL:

  • {BLOCKED}.123.150:17595
  • {BLOCKED}.184.49:28201
  • {BLOCKED}.236.42:27789
  • {BLOCKED}.91.99:10825
  • {BLOCKED}.224.48:25192
  • {BLOCKED}.199.73:14970
  • {BLOCKED}.77.153:10206
  • {BLOCKED}.243.164:21516
  • {BLOCKED}165.58:23835
  • {BLOCKED}219.108:26062
  • {BLOCKED}112.230:18612
  • {BLOCKED}.177.24:24437
  • {BLOCKED}.2.63:23361
  • {BLOCKED}.55.249:20782
  • {BLOCKED}.3.123:17894
  • {BLOCKED}.242.235:27446
  • {BLOCKED}.81.152:20086
  • {BLOCKED}.118.144:22277
  • {BLOCKED}.246.200:16683
  • {BLOCKED}.201.84:22059
  • {BLOCKED}.159.91:15507