TROJ_GAMETHI.BRA
Infostealer.Gampass (Symantec); TrojanDownloader:Win32/Frethog.C (Microsoft); Trojan-GameThief.Win32.Magania.aowc (Kaspersky)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
TECHNICAL DETAILS
86,016 bytes
PE
24 Dec 2008
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CLASSES_ROOT\CLSID\{CE7C3CF0-4B15-11D1-ABED-709549C10000}\
InprocServer32
(Default) = "{malware path and file name}"
It registers itself as a BHO to ensure its automatic execution every time Internet Explorer is used by adding the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{CE7C3CF0-4B15-11D1-ABED-709549C10000}
Other System Modifications
This Trojan adds the following registry keys as part of its installation routine:
HKEY_CLASSES_ROOT\IEHlprObj.IEHlprObj
HKEY_CLASSES_ROOT\IEHlprObj.IEHlprObj.1
HKEY_CLASSES_ROOT\CLSID\{CE7C3CF0-4B15-11D1-ABED-709549C10000}
HKEY_CLASSES_ROOT\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}
HKEY_CLASSES_ROOT\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}
SOLUTION
8.900
5.732.02
24 Dec 2008
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
Scan your computer with your Trend Micro product and note files detected as TROJ_GAMETHI.BRA
Step 3
Restart in Safe Mode
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. 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_CLASSES_ROOT
- IEHlprObj.IEHlprObj
- IEHlprObj.IEHlprObj
- In HKEY_CLASSES_ROOT
- IEHlprObj.IEHlprObj.1
- IEHlprObj.IEHlprObj.1
- In HKEY_CLASSES_ROOT\CLSID
- {CE7C3CF0-4B15-11D1-ABED-709549C10000}
- {CE7C3CF0-4B15-11D1-ABED-709549C10000}
- In HKEY_CLASSES_ROOT\Interface
- {CE7C3CEF-4B15-11D1-ABED-709549C10000}
- {CE7C3CEF-4B15-11D1-ABED-709549C10000}
- In HKEY_CLASSES_ROOT\TypeLib
- {CE7C3CE2-4B15-11D1-ABED-709549C10000}
- {CE7C3CE2-4B15-11D1-ABED-709549C10000}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
- {CE7C3CF0-4B15-11D1-ABED-709549C10000}
- {CE7C3CF0-4B15-11D1-ABED-709549C10000}
Step 5
Search and delete the file detected as TROJ_GAMETHI.BRA
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_GAMETHI.BRA. 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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