TSPY_LDPINCH.CTI
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Spyware
Destructiveness: No
Encrypted:
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 deletes itself after execution.
TECHNICAL DETAILS
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.
Autostart Technique
This spyware adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Google Update = "{random characters}"
It registers as a system service to ensure its automatic execution at every system startup by adding the following registry keys:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\?etadpug
Other System Modifications
This spyware adds the following registry keys:
HKEY_CURRENT_USER\Software\WinRAR
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\?etadpug\Parameters
It adds the following registry entries:
HKEY_CURRENT_USER\Software\WinRAR
HWID = "{random values}"
HKEY_CURRENT_USER\Software\WinRAR
Client Hash = "{random values}"
HKEY_CURRENT_USER\Software\WinRAR
BB1D3E5861196FFAF5063C77B0FE35C4 = "{random values}"
HKEY_CURRENT_USER\Software\WinRAR
4747BE774C49B576812E99468A76AAC3 = "{random values}"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\?etadpug\Parameters
Parameters = "564"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\?etadpug
Start = "2"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\?etadpug
Type = "1"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\?etadpug
ErrorControl = "0"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\?etadpug
ImagePath = "{random characters}"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\?etadpug
ObjectName = "LocalSystem"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\?etadpug
Description = "{random characters}"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\?etadpug
DisplayName = "Google Update Service (gupdate)"
Dropping Routine
This spyware drops the following files:
- %User Temp%\25602562.exe
- %User Temp%\25619640.exe
- GoogleUpdate.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, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
Other Details
This spyware deletes itself after execution.
This report is generated via an automated analysis system.
SOLUTION
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
Restart in Safe Mode
Step 3
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.
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
- ?etadpug
- In HKEY_CURRENT_USER\Software
- WinRAR
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\?etadpug
- Parameters
Step 4
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_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- Google Update = "{random characters}"
- In HKEY_CURRENT_USER\Software\WinRAR
- HWID = "{random values}"
- In HKEY_CURRENT_USER\Software\WinRAR
- Client Hash = "{random values}"
- In HKEY_CURRENT_USER\Software\WinRAR
- BB1D3E5861196FFAF5063C77B0FE35C4 = "{random values}"
- In HKEY_CURRENT_USER\Software\WinRAR
- 4747BE774C49B576812E99468A76AAC3 = "{random values}"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\?etadpug\Parameters
- Parameters = "564"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\?etadpug
- Start = "2"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\?etadpug
- Type = "1"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\?etadpug
- ErrorControl = "0"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\?etadpug
- ImagePath = "{random characters}"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\?etadpug
- ObjectName = "LocalSystem"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\?etadpug
- Description = "{random characters}"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\?etadpug
- DisplayName = "Google Update Service (gupdate)"
Step 5
Search and delete these components
- %User Temp%\25602562.exe
- %User Temp%\25619640.exe
- GoogleUpdate.exe
- @
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_LDPINCH.CTI. 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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