Analysis by: Roland Marco Dela Paz
ALIASES:

Trojan.Win32.Agent2.dlvm (Kaspersky); Trj/Lukicsel.A (Panda)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This spyware sends the gathered information via HTTP POST to a URL.

It steals FTP credentials such as user names and passwords from FTP clients.

This spyware may be unknowingly downloaded by a user while visiting malicious websites. It may be downloaded from remote sites by other malware.

  TECHNICAL DETAILS

File Size: Varies
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 29 Apr 2011

Arrival Details

This spyware may be unknowingly downloaded by a user while visiting malicious websites.

It may be downloaded from remote site(s) by the following malware:

  • TROJ_PIDIEF.HBM
  • JAVA_EXPLOIT.HBM

It may be downloaded from the following remote sites:

  • http://{BLOCKED}ng.info/d.php
  • http://{BLOCKED}uto.info/d.php

Other System Modifications

This spyware adds the following registry entries:

HKEY_CURRENT_USER\Software\WinRAR
HWID = {CLSID}

HKEY_CURRENT_USER\Software\WinRAR
Client Hash = {hex values}

Stolen Information

This spyware sends the gathered information via HTTP POST to the following URL:

  • http://{BLOCKED}6.{BLOCKED}5.140.110/gate_goo.php

NOTES:

It steals FTP credentials such as user names and passwords from the following FTP clients:

  • 32bit FTP
  • AceBIT
  • BitKinex
  • Bullet Proof FTP
  • COREFTP
  • Classic FTP PC
  • Coffeecup
  • CuteFTP
  • Directory Opus
  • ExpanDrive
  • FAR
  • FTP Commander
  • FTP Control
  • FTP Explorer
  • FTP Navigator
  • FTP Rush
  • FTP Voyager
  • FTPCON
  • FileZilla
  • FlashFXP
  • Fling
  • Frigate3
  • IpswitchWS_FTP
  • LeapFTP
  • NetDrive
  • Opera
  • RhinoSoft
  • SecureFX
  • SmartFTP
  • SoftXFTPClient
  • SotaFFFTP
  • TotalCommander
  • TurboFTP
  • UltraFXP
  • WISE-FTP
  • WebSitePublisher
  • WebDrive
  • WinSCP

It does the said routine by querying registries, logs, and configuration files related to the said applications.

  SOLUTION

Minimum Scan Engine: 8.900
VSAPI OPR PATTERN File: 8.139.00
VSAPI OPR PATTERN Date: 05 May 2011

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Remove malware files dropped/downloaded by TSPY_FTPMESO.HBM

Step 3

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_CURRENT_USER\Software\WinRAR
    • HWID = {CLSID}
  • In HKEY_CURRENT_USER\Software\WinRAR
    • Client Hash = {hex values}

Step 4

Scan your computer with your Trend Micro product to delete files detected as TSPY_FTPMESO.HBM. 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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