TROJ_DLOAD.SW

 Analysis by: Sabrina Lei Sioting

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: No

  • 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 downloaded files whose malicious routines are exhibited by the affected system.

  TECHNICAL DETAILS

File Size:

94,208 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

05 May 2011

Payload:

Downloads files, Connects to URLs/Ips

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.

Download Routine

This spyware accesses the following websites to download files:

  • %User Temp%\bdel
  • %User Temp%\dll64ocx
  • %User Temp%\tempox
  • %User Temp%\win32com

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)

It executes downloaded files :

  • %User Temp%\est.exe
  • %User Temp%\hiphelp.exe

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)

whose malicious routines are exhibited by the affected system.

Other Details

This spyware connects to the following possibly malicious URL:

  • http://{BLOCKED}omautocenter.com.br/galeria/admin/archivo.html