Home Malware Programs Backdoors BKDR_CYSXL.A

BKDR_CYSXL.A

Posted: April 23, 2012

Threat Metric

Threat Level: 6/10
Infected PCs: 42
First Seen: April 23, 2012
OS(es) Affected: Windows

BKDR_CYSXL is a backdoor Trojan that is included in a spam email associated with the London Olympics 2012. However, instead of the usual scams connected with the Olympics which are sent by web attackers in the form of a lottery wherein online users could allegedly win a free travel package to the event, this scam comes as a spam message concealed as an email advisory. BKDR_CYSXL.A may be downloaded and installed by other malware threats. BKDR_CYSXL.A connects to a certain website to transmit and obtain information. The DLL component of BKDR_CYSXL.A is inserted in the svchost.exe process. BKDR_CYSXL.A registers itself as a system service so that it can run automatically every time you start up your computer system by adding the particular registry entry. Uninstall BKDR_CYSXL.A before it harms your machine.

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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:



file.dll File name: file.dll
Size: 54.27 KB (54272 bytes)
MD5: c10ae223f80a4aab03da384e4c89a39d
Detection count: 49
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
Last Updated: May 4, 2012
file.exe File name: file.exe
Size: 73.48 KB (73483 bytes)
MD5: 14b6fcdff12b707bf660d552b2e24731
Detection count: 47
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: May 4, 2012
%System%\cydll.dll File name: %System%\cydll.dll
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
%System Root%\Document and Settings\All users\realupdate.exe File name: %System Root%\Document and Settings\All users\realupdate.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

Registry Modifications

The following newly produced Registry Values are:

HKEY..\..\..\..{Subkeys}HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CyService\parametersServiceDll = "%System%\cydll.dll"HKEY..\..\..\..{RegistryKeys}HKEY_CLASSES_ROOT\Sxl