File Investigation Report
XLK9.COMCloaked Malware
Your PC is infected. The file called XLK9.COM is considered unsafe and there may be other infections on your PC.
You should urgently check your PC and remove any malicious software including XLK9.COM as soon as possible. The free version of Prevx CSI will scan your PC for millions of spyware and malware infections in less than 2 minutes. Don't put your confidential data, or your identity at risk, check your PC now with Prevx CSI.
Associated Malware Groups
The filename is associated with the malware group:
- Cloaked Malware
File Behavior
XLK9.COM has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- This Process Deletes Other Processes From Disk
- This process creates other processes on disk
- Writes to another Process's Virtual Memory (Process Hijacking)
- Registers a Dynamic Link Library File
- Executes a Process
- Injects code into other processes
- Creates a new Background Service on the machine
- Loads and Executes a System Driver File
XLK9.COM has been the subject of the following behavior:
- Added as a Registry auto start to load Program on Boot up
- Created as a process on disk
- Executed as a Process
- Executed from Temporary Folders
- Deleted as a process from disk
- Copied to multiple locations on the system
- This program is often downloaded from the web
- Registered as a Dynamic Link Library File
Country Of Origin
The filename XLK9.COM was first seen on Oct 22 2008 in the following geographical regions of the Prevx community:
- POLAND on Oct 22 2008
- ITALY on Oct 22 2008
- KENYA on Oct 22 2008
File Name Aliases
XLK9.COM can also use the following file names:
- CKVO.EXE
- HELP.EXE
- DPTTEP~1.COM
- DPTTNW~1.COM
- B.EXE
Filesizes
The following file size has been seen:
- 104,123 bytes
- 105,018 bytes
- 118,073 bytes
Vendor, Product and Version Information
These files have no vendor, product or version information specified in the file header.
File Type
The filename XLK9.COM refers to many versions of an executable program.
File Activity
One or more files with the name XLK9.COM creates, deletes, copies or moves the following files and folders:
- Creates c:\windows\system32\drivers\klif.sys
- Deletes c:\windows\system32\drivers\klif.sys
- Deletes c:\windows\system32\ckvo.exe
- Deletes c:\windows\system32\ckvo0.dll
- Creates c:\windows\system32\ckvo0.dll
- Deletes c:\xlk9.co
- Copies filec:\windows\system32\ckvo.exe to c:\xlk9.co
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\xlk9.co
- Copies filec:\windows\system32\ckvo.exe to d:\xlk9.co
- Deletes d:\autorun.in
- Creates d:\autorun.in
- Deletes c:\docume~1\user\locals~1\temp\help1.rar
- Deletes c:\docume~1\user\locals~1\temp\help.ex
- Opens/modifes c:\autoexec.bat
- Creates c:\docume~1\user\locals~1\temp\help1.rar
- Deletes c:\docume~1\user\locals~1\temp\help.exe
- Creates c:\docume~1\user\locals~1\temp\help.exe
- Copies filec:\docume~1\user\locals~1\temp\help.exe to c:\windows\system32\ckvo.exe
Registry Activity
One or more files with the name XLK9.COM creates or modifies the following registry keys and values:
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run kamsoft C:\WINDOWS\system32\ckvo.exe
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced Hidden value:
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced ShowSuperHidden value:
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer NoDriveTypeAutoRun [REG_DWORD, value: 00000091]
Website Activity
One or more files with the name XLK9.COM interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1091 Port:19
- Port 80 IP:221.1.204.243
- TCP:127.0.0.1:1093 Port:18