BKDR_KEYLOGGE.LU
Windows 2000, XP, Server 2003
Threat Type: Backdoor
Destructiveness: Yes
Encrypted: No
In the wild: Yes
OVERVIEW
However, as of this writing, the said sites are inaccessible.
TECHNICAL DETAILS
155,707 bytes
DLL
Yes
14 Jul 2010
Autostart Technique
This backdoor registers itself as a system service to ensure its automatic execution at every system startup by adding the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\zbpmpa
Description = Microsoft .NET Framework TPM
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\zbpmpa
DisplayName = zbpmpa
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\zbpmpa
ErrorControl = 1
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\zbpmpa
ImagePath = %System%\svchost.exe -k zbpmpa
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\zbpmpa
ObjectName = LocalSystem
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\zbpmpa
Start = 2
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\zbpmpa
Type = 272
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\zbpmpa\Parameters
ServiceDll = {malware file name}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\SvcHost
zbpmpa = zbpmpa
Backdoor Routine
This backdoor connects to the following URL(s) to send and receive commands from a remote malicious user:
- {BLOCKED}orben.3322.org:5588
However, as of this writing, the said sites are inaccessible.
SOLUTION
8.900
7.348.03
30 Jul 2010
7.349.00
30 Jul 2010
Step 1
Restart in Safe Mode
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_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
- zbpmpa
- zbpmpa
Step 3
Scan your computer with your Trend Micro product to delete files detected as BKDR_KEYLOGGE.LU. 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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