TSPY_BANKER.BKO
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Spyware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This spyware may be unknowingly downloaded by a user while visiting malicious websites.
It bears the file icons of certain applications to avoid easy detection and consequent removal.
TECHNICAL DETAILS
Arrival Details
This spyware may be unknowingly downloaded by a user while visiting malicious websites.
Installation
This spyware drops the following copies of itself into the affected system:
- %Windows%\Winlog64.exe
(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)
It bears the file icons of the following applications:
- Microsoft Word
Autostart Technique
This spyware adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
Winlog64 = %Windows%\Winlog64.exe
Other System Modifications
This spyware adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\New Windows
PopupMgr = no
NOTES:
Upon execution, this malware opens the following non-malicious application:
- Notepad.exe
SOLUTION
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
Terminate the malware/grayware/spyware process:
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\Run
- Winlog64 = %Windows%\Winlog64.exe
- Winlog64 = %Windows%\Winlog64.exe
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\New Windows
- PopupMgr = no
- PopupMgr = no
Step 4
Scan your computer with your Trend Micro product to delete files detected as TSPY_BANKER.BKO. 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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