File Investigation Report
T1YPKH.EXE
Cloaked MalwarePC Cleanup in 3 Easy Steps
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Associated Malware Groups
The filename is associated with the malware group:
- Cloaked Malware
File Behavior
T1YPKH.EXE 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
- Adds a Registry Key (RUN) to auto start Programs on system start up
- This process creates other processes on disk
- Writes to another Process's Virtual Memory (Process Hijacking)
- Executes a Process
- Found on infected systems and resists interrogation by security products
- Creates a new Background Service on the machine
- Loads and Executes a System Driver File
- Registers a Dynamic Link Library File
- Injects code into other processes
- The process hooks code into all running processes which could allow it to take control of the system or record keyboard input, mouse activity and screen contents
- Can communicate with other computer systems using HTTP protocols
- Copies files
- Looks at the contents of the autoexec.bat file
- Reads email address and phone book details
- Uses DNS to retrieve the IP address for web sites
- Visits web sites on your PC without you knowing
T1YPKH.EXE 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
- Has code inserted into its Virtual Memory space by other programs
- Deleted as a process from disk
- Copied to multiple locations on the system
- Executed from Temporary Folders
- Downloaded from covert web sites without the user knowing
- This program is often downloaded from the web
- Registered as a Dynamic Link Library File
Country Of Origin
The filename T1YPKH.EXE was first seen on Aug 14 2008 in the following geographical regions of the Prevx community:
- The EUROPEAN UNION on Aug 14 2008
- UKRAINE on Aug 15 2008
- MALDIVES on Aug 15 2008
- MALAYSIA on Aug 16 2008
- SERBIA AND MONTENEGRO on Aug 16 2008
- SINGAPORE on Aug 17 2008
- The UNITED KINGDOM on Aug 17 2008
- EGYPT on Jun 24 2009
File Name Aliases
T1YPKH.EXE can also use the following file names:
- CKVO.EXE
- HELP.EXE
- DDR.EXE
- 66973455.EXE
- 21560785.EXE
- 46688784.EXE
- 38703429.EXE
- 55811861.EXE
- 96375922.EXE
- 75291924.EXE
- 56748951.EXE
- 46294683.EXE
- 25019857.EXE
- 55655671.EXE
- 96631643.EXE
- WQCLZMI.TMP
- AUTORUN.INF
Filesizes
The following file size has been seen:
- 89,197 bytes
- 91,179 bytes
- 112,128 bytes
- 213,504 bytes
- 147,456 bytes
File Type
The filename T1YPKH.EXE refers to many versions of an executable program.
File Activity
One or more files with the name T1YPKH.EXE 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:\t1ypkh.ex
- Copies filec:\windows\system32\ckvo.exe to c:\t1ypkh.ex
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\t1ypkh.ex
- Copies filec:\windows\system32\ckvo.exe to d:\t1ypkh.ex
- 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
- Deletes c:\windows\system32\ckvo1.dll
- Creates c:\windows\system32\ckvo1.dll
Website Activity
One or more files with the name T1YPKH.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1106 Port:19
- Port 80 IP:60.169.1.92
- TCP:127.0.0.1:1108 Port:18
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