TSPY_ONLINEG.BAO
TrojanDropper:Win32/Tilcun.E (Microsoft); PWS-OnlineGames.as (McAfee); Infostealer.Onlinegame (Symantec); Trojan-GameThief.Win32.OnLineGames.bdmw (Kaspersky); TrojanPWS.Win32.Agent.K (v) (Sunbelt); Trojan.PWS.OnlineGames.ZON (FSecure)
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.
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.
Other System Modifications
This spyware deletes the following files:
- %System%\Verclsid.exe
- %System%\tf0
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)
It adds the following registry keys:
HKEY_CLASSES_ROOT\CLSID\
HKEY_CLASSES_ROOT\CLSID\\
InProcServer32
HKEY_CLASSES_ROOT\SOFTWARE\MICROSOFT\
WINDOWS\CURRENTVERSION\EXPLORER\
SHELLEXECUTEHOOKS
HKEY_CURRENT_USER\avs
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\\InProcServer32
ThreadingModel = "Apartment"
Dropping Routine
This spyware drops the following files:
- %System%\.dll
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)
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
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_CLASSES_ROOT\CLSID
-
- In HKEY_CLASSES_ROOT\CLSID\
- InProcServer32
- In HKEY_CLASSES_ROOT\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER
- SHELLEXECUTEHOOKS
- In HKEY_CURRENT_USER
- avs
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\Classes\CLSID\\InProcServer32
- ThreadingModel = "Apartment"
Step 4
Search and delete this file
- %System%\.dll
Step 5
Scan your computer with your Trend Micro product to delete files detected as TSPY_ONLINEG.BAO. 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 6
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %System%\Verclsid.exe
- %System%\tf0
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