TROJ_CEEINJECT_0000058.TOMA
VirTool:Win32/CeeInject.gen!J (Microsoft); Trojan.Gen (Symantec); Trojan.Win32.Generic!BT (Sunbelt)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
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 disables Task Manager, Registry Editor, and Folder Options.
TECHNICAL DETAILS
487,424 bytes
EXE
Yes
05 Feb 2013
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:
- %System%\Common Files\windows.exe
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)
It creates the following folders:
- %System%\Common Files
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
waiguafuzhu = "%System%\Common Files\windows.exe"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
waiguachajian = "%System%\Common Files\windows.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Active Setup\Installed Components\{08KV60G6-R403-713X-U222-X3556452WXHK}
StubPath = "%System%\Common Files\windows.exe Restart"
Other System Modifications
This Trojan adds the following registry keys:
HKEY_CURRENT_USER\SOFTWARE\2010£¯04£¯28¸üÐÂ
HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer\Run
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer\Run
HKEY_LOCAL_MACHINE\Software\Microsoft\
Active Setup\Installed Components\{08KV60G6-R403-713X-U222-X3556452WXHK}
It adds the following registry entries:
HKEY_CURRENT_USER\Software\2010£¯04£¯28¸üÐÂ
FileNameAtual = "{malware path and file name}"
HKEY_CURRENT_USER\Software\2010£¯04£¯28¸üÐÂ
FirstExecution = "04/02/2013 -- 08:20"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\policies\
Explorer\Run
windows = "%System%\Common Files\windows.exe"
HKEY_CURRENT_USER\Software\2010£¯04£¯28¸üÐÂ
ByPersist = "%System%\Common Files\windows.exewaiguafuzhuwaiguachajian"
It creates the following registry entry(ies) to disable Task Manager, Registry Tools and Folder Options:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer\Run
windows = "%System%\Common Files\windows.exe"
It deletes the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\
Active Setup\Installed Components\{08KV60G6-R403-713X-U222-X3556452WXHK}
This report is generated via an automated analysis system.
SOLUTION
9.300
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
Enable Registry Editor, Task Manager, and Folder options
Step 4
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_CURRENT_USER\SOFTWARE
- 2010£¯04£¯28¸üÐÂ
- In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
- Run
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
- Run
- In HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components
- {08KV60G6-R403-713X-U222-X3556452WXHK}
Step 5
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\Run
- waiguafuzhu = "%System%\Common Files\windows.exe"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- waiguachajian = "%System%\Common Files\windows.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{08KV60G6-R403-713X-U222-X3556452WXHK}
- StubPath = "%System%\Common Files\windows.exe Restart"
- In HKEY_CURRENT_USER\Software\2010£¯04£¯28¸üÐÂ
- FileNameAtual = "{malware path and file name}"
- In HKEY_CURRENT_USER\Software\2010£¯04£¯28¸üÐÂ
- FirstExecution = "04/02/2013 -- 08:20"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run
- windows = "%System%\Common Files\windows.exe"
- In HKEY_CURRENT_USER\Software\2010£¯04£¯28¸üÐÂ
- ByPersist = "%System%\Common Files\windows.exewaiguafuzhuwaiguachajian"
Step 6
Search and delete this folder
- %System%\Common Files
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_CEEINJECT_0000058.TOMA. 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.
Step 8
Restore these deleted registry keys/values from backup
*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.
- In HKEY_CURRENT_USER\Software\Microsoft\Active Setup\Installed Components
- {08KV60G6-R403-713X-U222-X3556452WXHK}
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