Analysis by: adel

 PLATFORM:

Windows 98, ME, NT, 2000, XP, Server 2003

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Trend Micro has flagged this spyware as noteworthy due to the increased potential for damage, propagation, or both, that it possesses. Specifically, steals not only account credentials but it can also steal money from accounts.

To get a one-glance comprehensive view of the behavior of this Spyware, refer to the Threat Diagram shown below.

This spyware may be downloaded by other malware/grayware/spyware from remote sites.

It attempts to steal information, such as user names and passwords, used when logging into certain banking or finance-related websites.

  TECHNICAL DETAILS

File Size: 56,832 bytes
File Type: PE
Memory Resident: Yes
Initial Samples Received Date: 30 Sep 2009

Arrival Details

This spyware may be downloaded by other malware/grayware/spyware from remote sites.

Installation

This spyware drops the following copies of itself into the affected system:

  • %System%\{random name}.exe

(Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.)

It injects itself into the following processes running in the affected system's memory:

  • csrss.exe

Autostart Technique

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
userinit.exe
Debugger = {malware file name}.exe

Other System Modifications

This spyware adds the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
chrome.exe
Debugger = %Program Files%\Internet Explorer\iexplore.exe

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
navigator.exe
Debugger = %Program Files%\Internet Explorer\iexplore.exe

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
opera.exe
Debugger = %Program Files%\Internet Explorer\iexplore.exe

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
safari.exe
Debugger = %Program Files%\Internet Explorer\iexplore.exe

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Internet Settings\
mapzone
(Default) = 58,77,e2,41,af,b9,c5,c2,fd,7d,fb,4b,24,83,9b,5c,c1,d0,24,01,62,ea,b6,12,6f,7c,97,43,85,4b,2c,21,00,f2,a0,1c,55,c1,f8,17,aa,90,50,13,ff,5f,a8,0e,54,4e,76,7e,c6,9a,32,2b,9d,a3,80,38,6a,b2,61,9a,86,05,3a,f7,fd,3b,b7,f2,52,0b,0f,ee,a7,da,66,e9,fc,a9,be,e4,51,79,16,e0,a6,24,07,a8,8f,76,b4,be,39,91,33,b1,cb,99,4d,f4,d5,e3,ab,e6,26,30,25,c4,a4,24,7d,bf,f9,f3,d4,ba,4e,c3,2c,b6,a3,92,84,b1,f8,51,f6,ac,4d,60,07,e3,e3,37,cd,e9,b5,8e,af,d1,02,a9,7e,d5,ed,2a,aa,95,f6,3d,eb,90,4b,0d,43,8c,a0,dc,9a,87,f5,ab,f2

Download Routine

This spyware connects to the following URL(s) to download its configuration file:

  • {BLOCKED}omde.cn

Information Theft

This spyware attempts to steal information from the following banks and/or other financial institutions:

  • Deutsche Bank
  • Deutsche Postbank AG
  • HypoVereinsbank
  • Volksbank Emmerich-Rees

Drop Points

The said file is then sent to the following URL via HTTP POST:

  • {BLOCKED}omde.cn

Other Details

Based on analysis of the codes, it has the following capabilities:

  • Manipulates the account page to display no changes in the user's account balance
  • Steal money from accounts

Variant Information

This spyware has the following MD5 hashes:

  • 27e8351a5b0bea5ef15c6681007fdee5

It has the following SHA1 hashes:

  • eb684cca887e2ca204bd831be3cd3d512875a0a1

  SOLUTION

Minimum Scan Engine: 8.900
VSAPI OPR PATTERN File: 6.521.00
VSAPI OPR PATTERN Date: 08 Oct 2009

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

Restart in Safe Mode

[ Learn More ]

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_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\mapzone
    • (Default) = 58,77,e2,41,af,b9,c5,c2,fd,7d,fb,4b,24,83,9b,5c,c1,d0,24,01,62,ea,b6,12,6f,7c,97,43,85,4b,2c,21,00,f2,a0,1c,55,c1,f8,17,aa,90,50,13,ff,5f,a8,0e,54,4e,76,7e,c6,9a,32,2b,9d,a3,80,38,6a,b2,61,9a,86,05,3a,f7,fd,3b,b7,f2,52,0b,0f,ee,a7,da,66,e9,fc,a9,be,e4,51,79,16,e0,a6,24,07,a8,8f,76,b4,be,39,91,33,b1,cb,99,4d,f4,d5,e3,ab,e6,26,30,25,c4,a4,24,7d,bf,f9,f3,d4,ba,4e,c3,2c,b6,a3,92,84,b1,f8,51,f6,ac,4d,60,07,e3,e3,37,cd,e9,b5,8e,af,d1,02,a9,7e,d5,ed,2a,aa,95,f6,3d,eb,90,4b,0d,43,8c,a0,dc,9a,87,f5,ab,f2

Step 4

Delete this registry key

[ 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_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options
    • userinit.exe
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options
    • chrome.exe
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options
    • navigator.exe
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options
    • opera.exe
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options
    • safari.exe

Step 5

Scan your computer with your Trend Micro product to delete files detected as TSPY_BEBLOH.SMJ. 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.


Did this description help? Tell us how we did.