Trojan.Lapka
Posted: May 24, 2013
Threat Metric
The following fields listed on the Threat Meter containing a specific value, are explained in detail below:
Threat Level: The threat level scale goes from 1 to 10 where 10 is the highest level of severity and 1 is the lowest level of severity. Each specific level is relative to the threat's consistent assessed behaviors collected from SpyHunter's risk assessment model.
Detection Count: The collective number of confirmed and suspected cases of a particular malware threat. The detection count is calculated from infected PCs retrieved from diagnostic and scan log reports generated by SpyHunter.
Volume Count: Similar to the detection count, the Volume Count is specifically based on the number of confirmed and suspected threats infecting systems on a daily basis. High volume counts usually represent a popular threat but may or may not have infected a large number of systems. High detection count threats could lay dormant and have a low volume count. Criteria for Volume Count is relative to a daily detection count.
Trend Path: The Trend Path, utilizing an up arrow, down arrow or equal symbol, represents the level of recent movement of a particular threat. Up arrows represent an increase, down arrows represent a decline and the equal symbol represent no change to a threat's recent movement.
% Impact (Last 7 Days): This demonstrates a 7-day period change in the frequency of a malware threat infecting PCs. The percentage impact correlates directly to the current Trend Path to determine a rise or decline in the percentage.
Threat Level: | 8/10 |
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Infected PCs: | 11 |
First Seen: | May 24, 2013 |
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Last Seen: | September 19, 2019 |
OS(es) Affected: | Windows |
Trojan.Lapka is a Trojan that opens a back door on the targeted computer. When run, Trojan.Lapka creates a copy of itself as the potentially malicious file. Trojan.Lapka creates the potentially malicious files. Trojan.Lapka then creates the registry entries to register itself as a system service. Trojan.Lapka then creates the registry entries to register itself as a legacy driver service. Trojan.Lapka also modifies the registry entries.
Technical Details
File System Modifications
Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.
The following files were created in the system:%System%\Black.dll
File name: %System%\Black.dllFile type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
%System%\wininitg.exe
File name: %System%\wininitg.exeFile type: Executable File
Mime Type: unknown/exe
Group: Malware file
%System%\RCX2.tmp
File name: %System%\RCX2.tmpFile type: Temporary File
Mime Type: unknown/tmp
Group: Malware file
%System%\RCX1.tmp
File name: %System%\RCX1.tmpFile type: Temporary File
Mime Type: unknown/tmp
Group: Malware file
%System%\drivers\passthru.sys
File name: %System%\drivers\passthru.sysFile type: System file
Mime Type: unknown/sys
Group: Malware file
%System%\drivers\diskflt.sys
File name: %System%\drivers\diskflt.sysFile type: System file
Mime Type: unknown/sys
Group: Malware file
%SystemDrive%\netsf_m.inf
File name: %SystemDrive%\netsf_m.infMime Type: unknown/inf
Group: Malware file
%SystemDrive%\netsf.inf
File name: %SystemDrive%\netsf.infMime Type: unknown/inf
Group: Malware file
%SystemDrive%\passthru.sys
File name: %SystemDrive%\passthru.sysFile type: System file
Mime Type: unknown/sys
Group: Malware file
%Temp%\netsf.inf
File name: %Temp%\netsf.infMime Type: unknown/inf
Group: Malware file
%Temp%\netsf_m.inf
File name: %Temp%\netsf_m.infMime Type: unknown/inf
Group: Malware file
%Temp%\install.bat
File name: %Temp%\install.batFile type: Batch file
Mime Type: unknown/bat
Group: Malware file
%Temp%\snetcfg.exe
File name: %Temp%\snetcfg.exeFile type: Executable File
Mime Type: unknown/exe
Group: Malware file
%Temp%\passthru.sys
File name: %Temp%\passthru.sysFile type: System file
Mime Type: unknown/sys
Group: Malware file
%Windir%\inf\netsf.inf
File name: %Windir%\inf\netsf.infMime Type: unknown/inf
Group: Malware file
%Windir%\inf\netsf_m.inf
File name: %Windir%\inf\netsf_m.infMime Type: unknown/inf
Group: Malware file
%Windir%\LastGood\system32\DRIVERS\passthru.sys
File name: %Windir%\LastGood\system32\DRIVERS\passthru.sysFile type: System file
Mime Type: unknown/sys
Group: Malware file
%Windir%\inf\passthru.sys
File name: %Windir%\inf\passthru.sysFile type: System file
Mime Type: unknown/sys
Group: Malware file
Registry Modifications
HKEY..\..\{Value}HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Passthru\"ErrorControl" = "1"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Passthru\"DisplayName" = "Passthru Service"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Passthru\"Start" = "3"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Passthru\"ImagePath" = "system32\DRIVERS\passthru.sys"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Passthru\Security\"Security" = "[BINARY DATA]"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Passthru\"Type" = "1"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\win32 Tool\"DisplayName" = "win32 Tool"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\win32 Tool\"Description" = "win32 Tool"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\win32 Tool\"ImagePath" = "%System%\wininitg.exe"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\win32 Tool\"ErrorControl" = "0"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\win32 Tool\"ObjectName" = "LocalSystem"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\win32 Tool\Security\"Security" = "[BINARY DATA]" HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\win32 Tool\"Type" = "16"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\win32 Tool\"Start" = "2"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_WIN32_TOOL\0000\"Class" = "LegacyDriver"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_WIN32_TOOL\"NextInstance" = "1"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_WIN32_TOOL\0000\"ConfigFlags" = "0"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_WIN32_TOOL\0000\"ClassGUID" = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_WIN32_TOOL\0000\"Legacy" = "1"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_WIN32_TOOL\0000\"DeviceDesc" = "win32 Tool"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_WIN32_TOOL\0000\"Service" = "win32 Tool"
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