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TROJ_LAZIOK.B

April 03, 2015
 Analysis by: Homer Pacag
 ALIASES:

Trojan.Laziok (Symantec);

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware


This malware has been seen in campaigns that target the energy sector.

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.

It connects to a website to send and receive information.

It retrieves specific information from the affected system.

However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

324,608 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

03 Mar 2015

Payload:

Collects system information, Connects to URLs/IPs, Steals information

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 copies of itself into the affected system:

  • %Application Data%\System\Oracle\smss.exe
  • %Windows%\explorer\smss.exe

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

It drops the following files:

  • %Application Data%\System\Oracle\azioklmpx\hzid\hzid.txt
  • %Application Data%\System\Oracle\azioklmpx\ext\ext.txt

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

It creates the following folders:

  • %Application Data%\System
  • %Application Data%\System\Oracle
  • %Application Data%\System\Oracle\azioklmpx
  • %Application Data%\System\Oracle\azioklmpx\hzid
  • %Application Data%\System\Oracle\azioklmpx\ext

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

It adds the following mutexes to ensure that only one of its copies runs at any one time:

  • yourhavebecracked

Autostart Technique

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

HKLM\Software\Microsoft\
Windows\CurrentVersion\Run
Windows = %Windows%\explorer\smss.exe

HKCU\Software\Microsoft\
Windows\CurrentVersion\Run
Windows = %Application Data%\System\Oracle\smss.exe

Backdoor Routine

This Trojan connects to the following websites to send and receive information:

  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/verif.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/tor.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/fileupload.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/extension.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/f_i_l_e_h_o_s_t.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/persis.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/btcplugin.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/d_elay.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/d_elay.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/day.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/ip.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/country.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/idcontact.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/bkill.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/install_info.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/pinginfo.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/get.php
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/post.php

Download Routine

This Trojan connects to the following website(s) to download and execute a malicious file:

  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/torkit/tor.exe - %Application Data%\System\Oracle\azioklmpx\admin.exe
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/search.exe - %Application Data%\System\Oracle\azioklmpx\search.exe
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/414fileh0st.exe - %Application Data%\System\Oracle\azioklmpx\chrome.exe
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/kit47896.exe - %Application Data%\System\Oracle\azioklmpx\smss.exe
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/btcplugin.exe - %Application Data%\System\Oracle\azioklmpx\lsass.exe
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/ibank.exe - %Application Data%\System\Oracle\azioklmpx\ati.exe
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/ikey.exe - %Application Data%\System\Oracle\azioklmpx\key.exe
  • http://{BLOCKED}.{BLOCKED}.77.75/panel/includes/brute/brutegen.exe - %Application Data%\System\Oracle\azioklmpx\taskmgr.exe

Information Theft

This Trojan retrieves the following information from the affected system:

  • Computer Name
  • Operating Sysytem
  • Country and Ip Address
  • GPU Information
  • CPU Information
  • Installed Web Browsers
  • Installed Applications
  • Installed Anti-Malware Applications

Other Details

However, as of this writing, the said sites are inaccessible.

NOTES:

The information collected and sent includes the following:

  • GPU Information:
    • AMD/ATI Technologies
    • Nvidia Corporation
  • CPU Information:
    • Processor
    • HDD Size
    • RAM Memory
  • Installed Web Browsers:
    • Google Chrome
    • Mozilla Firefox
    • Opera
  • Installed Applications:
    • Steam
    • Origin
    • Java
    • Microsoft.Net
  • Installed Antimalware Applications:
    • G Data
    • Microsoft Security Client
    • Norton Internet Security
    • Kaspersky Lab
    • Mcafee
    • Avast Software
    • BitDefender
    • ESET
    • AVG
    • AntiVir Personal Edition Classic
    • Malwarebytes Anti-Malware
    • Comodo

  SOLUTION

Minimum Scan Engine:

9.750

FIRST VSAPI PATTERN FILE:

11.574.01

FIRST VSAPI PATTERN DATE:

03 Mar 2015

VSAPI OPR PATTERN File:

11.575.00

VSAPI OPR PATTERN Date:

03 Mar 2015

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

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\Microsoft\Windows\CurrentVersion\Run
    • Windows = %Application Data%\System\Oracle\smss.exe
  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • Windows = %Windows%\explorer\smss.exe

Step 4

Search and delete these folders

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • %Application Data%\System\Oracle\azioklmpx\hzid
  • %Application Data%\System\Oracle\azioklmpx\ext
  • %Application Data%\System\Oracle\azioklmpx
  • %Application Data%\System\Oracle
  • %Application Data%\System

Step 5

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %Application Data%\System\Oracle\azioklmpx\hzid\hzid.txt
  • %Application Data%\System\Oracle\azioklmpx\ext\ext.txt
  • %Application Data%\System\Oracle\azioklmpx\admin.exe
  • %Application Data%\System\Oracle\azioklmpx\search.exe
  • %Application Data%\System\Oracle\azioklmpx\chrome.exe
  • %Application Data%\System\Oracle\azioklmpx\smss.exe
  • %Application Data%\System\Oracle\azioklmpx\lsass.exe
  • %Application Data%\System\Oracle\azioklmpx\ati.exe
  • %Application Data%\System\Oracle\azioklmpx\key.exe
  • %Application Data%\System\Oracle\azioklmpx\taskmgr.exe

Step 6

Scan your computer with your Trend Micro product to delete files detected as TROJ_LAZIOK.B. 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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