File Investigation Report
R1Y1.BATCloaked Malware
Your PC is infected. The file called R1Y1.BAT is considered unsafe and there may be other infections on your PC.
You should urgently check your PC and remove any malicious software including R1Y1.BAT 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
R1Y1.BAT has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- This process creates other processes on disk
- Loads and Executes a System Driver File
- Creates a new Background Service on the machine
- This Process Deletes Other Processes From Disk
- Registers a Dynamic Link Library File
R1Y1.BAT 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
- Deleted as a process from disk
- Copied to multiple locations on the system
- Has code inserted into its Virtual Memory space by other programs
Country Of Origin
The filename R1Y1.BAT was first seen on Sep 7 2008 in the following geographical region of the Prevx community:
- The UNITED KINGDOM on Sep 7 2008
File Name Aliases
R1Y1.BAT can also use the following file names:
- CKVO.EXE
Filesizes
The following file size has been seen:
- 230,098 bytes
- 705,234 bytes
- 90,834 bytes
Vendor, Product and Version Information
These files have no vendor, product or version information specified in the file header.
File Type
The filename R1Y1.BAT refers to many versions of an executable program.
File Activity
One or more files with the name R1Y1.BAT 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:\r1y1.ba
- Copies filec:\windows\system32\ckvo.exe to c:\r1y1.ba
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\r1y1.ba
- Copies filec:\windows\system32\ckvo.exe to d:\r1y1.ba
- Deletes d:\autorun.in
- Creates d:\autorun.in
- Deletes c:\docume~1\user\locals~1\temp\help1.rar
- Opens/modifes c:\autoexec.bat
- Creates c:\docume~1\user\locals~1\temp\help1.rar
Registry Activity
One or more files with the name R1Y1.BAT 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 R1Y1.BAT interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1087 Port:19
- Port 80 IP:60.169.1.92
- TCP:127.0.0.1:1090 Port:18