TSPY_BEBLOH.WPD
Trojan:Win32/Bublik.B (Microsoft), Mal/Ramnit-FS (Sophos), W32/Bebloh.J!tr (Fortinet), Win32/Spy.Bebloh.J trojan (NOD32), Trojan.Bebloh (Norton)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

Threat Type: Spyware
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Spammed via email, Propagates via email
This spyware may also use a purely random set of characters as its file name. It connects to certain servers to report system infection and send information such as OS version and IP address.
This spyware arrives as an attachment to email messages spammed by other malware/grayware or malicious users. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It is injected into all running processes to remain memory resident.
It does not have any propagation routine.
However, as of this writing, the said sites are inaccessible. It deletes the initially executed copy of itself.
TECHNICAL DETAILS
485,376 bytes
EXE
Yes
16 Apr 2013
Steals information, Connects to URLs/IPs
Arrival Details
This spyware arrives as an attachment to email messages spammed by other malware/grayware or malicious users.
It 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 files:
- {Malware Path}\OTTObestellung.pdf - Non-malicious
It drops and executes the following files:
- %User Temp%\Adobe.exe - Also detected as TSPY_BEBLOH.WPD
(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, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
It drops the following copies of itself into the affected system:
- %System%\{random filename}.exe
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)
It is injected into all running processes to remain memory resident.
It adds the following mutexes to ensure that only one of its copies runs at any one time:
- 6A57BEED
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 = "%System%\{random filename}.exe"
Other System Modifications
This spyware adds the following registry entries as part of its installation routine:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Internet Settings\
5.0\203E7401
Default = "{XOR encrypted configuration file URLs}"
It adds the following registry keys as part of its installation routine:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Internet Settings\
5.0\203E7401
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
userinit.exe
It modifies the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\3
1609 = "0"
(Note: The default value data of the said registry entry is 1.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Internet Settings\
Cache\Paths
Directory = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5"
(Note: The default value data of the said registry entry is %Temporary Internet Files%\Content.IE5.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Internet Settings\
Cache\Paths\path1
CachePath = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\Cache1"
(Note: The default value data of the said registry entry is %Temporary Internet Files%\Content.IE5\Cache1.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Internet Settings\
Cache\Paths\path2
CachePath = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\Cache2"
(Note: The default value data of the said registry entry is %Temporary Internet Files%\Content.IE5\Cache2.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Internet Settings\
Cache\Paths\path3
CachePath = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\Cache3"
(Note: The default value data of the said registry entry is %Temporary Internet Files%\Content.IE5\Cache3.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Internet Settings\
Cache\Paths\path4
CachePath = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\Cache4"
(Note: The default value data of the said registry entry is %Temporary Internet Files%\Content.IE5\Cache4.)
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Hardware Profiles\0001\Software\
Microsoft\windows\CurrentVersion\
Internet Settings
ProxyEnable = "0"
(Note: The default value data of the said registry entry is 1.)
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Hardware Profiles\Current\Software\
Microsoft\windows\CurrentVersion\
Internet Settings
ProxyEnable = "0"
(Note: The default value data of the said registry entry is 1.)
HKEY_CURRENT_CONFIG\Software\Microsoft\
windows\CurrentVersion\Internet Settings
ProxyEnable = "0"
(Note: The default value data of the said registry entry is 1.)
HKEY_USERS\.DEFAULT\Software\
Microsoft\Windows\CurrentVersion\
Explorer\Shell Folders
Cookies = "%System%\config\systemprofile\Cookies"
(Note: The default value data of the said registry entry is %System Root%\Documents and Settings\NetworkService\Cookies.)
HKEY_USERS\.DEFAULT\Software\
Microsoft\Windows\CurrentVersion\
Explorer\Shell Folders
Cache = "%System%\config\systemprofile\Local Settings\Temporary Internet Files"
(Note: The default value data of the said registry entry is %System Root%\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files.)
HKEY_USERS\.DEFAULT\Software\
Microsoft\Windows\CurrentVersion\
Explorer\Shell Folders
History = "%System%\config\systemprofile\Local Settings\History"
(Note: The default value data of the said registry entry is %System Root%\Documents and Settings\NetworkService\Local Settings\History.)
Propagation
This spyware does not have any propagation routine.
Download Routine
This spyware connects to the following URL(s) to download its configuration file:
- http://{BLOCKED}c.com
- http://{BLOCKED}ar.net
- http://{BLOCKED}ti.net
Information Theft
This spyware gathers the following data:
- IP Address
- OS Version
- Socks Port
- UAC Configuration
- Hardware ID
- Email addresses in WAB
Drop Points
Stolen information is uploaded to the following websites:
- http://{BLOCKED}.125.134/smp/inx.php
Other Details
This spyware connects to the following URL(s) to check for an Internet connection:
- www.google.com
However, as of this writing, the said sites are inaccessible.
It deletes the initially executed copy of itself
NOTES:
The file names used for its dropped copy may contain the following strings combined with random characters:
- def
- dns
- exec
- hlp
- logon
- mem
- mixer
- mon
- pack
- play
- setup
- srv
- user
- video
- win
It may also use a purely random set of characters as filename.
It does not have rootkit capabilities.
It does not exploit any vulnerability.
SOLUTION
9.300
9.932.08
21 May 2013
9.933.00
22 May 2013
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
Identify and terminate files detected as TSPY_BEBLOH.WPD
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 3
Delete this registry value
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\5.0\203E7401
- Default = {XOR encrypted configuration file URLs}
- Default = {XOR encrypted configuration file URLs}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\userinit.exe
- Debugger = %System%\{random filename}.exe
- Debugger = %System%\{random filename}.exe
Step 4
Restart in Safe Mode
Step 5
Delete this registry key
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. Before you could do this, you must restart in Safe Mode. For instructions on how to do this, you may refer to this page If the preceding step requires you to restart in safe mode, you may proceed to edit the system registry.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0
- 203E7401
- 203E7401
Step 6
Search and delete this file
- {Malware Path}\OTTObestellung.pdf
Step 7
Restore this modified registry value
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\Internet Settings\Zones\3
- From: 1609 = "0"
To: 1609 = "1"
- From: 1609 = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths
- From: Directory = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5"
To: Directory = "%Temporary Internet Files%\Content.IE5"
- From: Directory = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1
- From: CachePath = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\Cache1"
To: CachePath = "%Temporary Internet Files%\Content.IE5\Cache1"
- From: CachePath = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\Cache1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2
- From: CachePath = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\Cache2"
To: CachePath = "%Temporary Internet Files%\Content.IE5\Cache2"
- From: CachePath = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\Cache2"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3
- From: CachePath = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\Cache3"
To: CachePath = "%Temporary Internet Files%\Content.IE5\Cache3"
- From: CachePath = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\Cache3"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4
- From: CachePath = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\Cache4"
To: CachePath = "%Temporary Internet Files%\Content.IE5\Cache4"
- From: CachePath = "%System%\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\Cache4"
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings
- From: ProxyEnable = "0"
To: ProxyEnable = "1"
- From: ProxyEnable = "0"
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Hardware Profiles\Current\Software\Microsoft\windows\CurrentVersion\Internet Settings
- From: ProxyEnable = "0"
To: ProxyEnable = "1"
- From: ProxyEnable = "0"
- In HKEY_CURRENT_CONFIG\Software\Microsoft\windows\CurrentVersion\Internet Settings
- From: ProxyEnable = "0"
To: ProxyEnable = "1"
- From: ProxyEnable = "0"
- In HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
- From: Cookies = "%System%\config\systemprofile\Cookies"
To: Cookies = "%System Root%\Documents and Settings\NetworkService\Cookies"
- From: Cookies = "%System%\config\systemprofile\Cookies"
- In HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
- From: Cache = "%System%\config\systemprofile\Local Settings\Temporary Internet Files"
To: Cache = "%System Root%\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files"
- From: Cache = "%System%\config\systemprofile\Local Settings\Temporary Internet Files"
- In HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
- From: History = "%System%\config\systemprofile\Local Settings\History"
To: History = "%System Root%\Documents and Settings\NetworkService\Local Settings\History"
- From: History = "%System%\config\systemprofile\Local Settings\History"
Step 8
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_BEBLOH.WPD. 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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