File Investigation Report
TYKTJFWW.EXE
Cloaked MalwarePC Cleanup in 3 Easy Steps
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Cloaked Malware
- Rootkit
File Behavior
TYKTJFWW.EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- Adds a Registry Key (RUN) to auto start Programs on system start up
- This process creates other processes on disk
- 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
- This Process Deletes Other Processes From Disk
- Writes to another Process's Virtual Memory (Process Hijacking)
- Registers a Dynamic Link Library File
- Executes a Process
- Injects code into other processes
- Copies files
- Found on infected systems and resists interrogation by security products
TYKTJFWW.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
- This program is often downloaded from the web
- Downloaded from covert web sites without the user knowing
- Registered as a Dynamic Link Library File
- Executed from Temporary Folders
Country Of Origin
The filename TYKTJFWW.EXE was first seen on Aug 8 2008 in the following geographical regions of the Prevx community:
- The UNITED KINGDOM on Aug 8 2008
- NIGER on Aug 8 2008
- The EUROPEAN UNION on Aug 8 2008
- SPAIN on Aug 8 2008
File Name Aliases
TYKTJFWW.EXE can also use the following file names:
- CKVO.EXE
- 22463648.SVD
- TYKTJFWW.EXE.BAK
- 20138414.EXE
- DDR.EXE
- HELP.EXE
- 96088358.EXE
- 02553013.TXT
- R1Y1.BAT
Filesizes
The following file size has been seen:
- 269,790 bytes
- 221,888 bytes
- 89,981 bytes
- 92,088 bytes
File Type
The filename TYKTJFWW.EXE refers to many versions of an executable program.
File Activity
One or more files with the name TYKTJFWW.EXE creates, deletes, copies or moves the following files and folders:
- Creates c:\docume~1\user\locals~1\temp\qra7.tmp
- 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:\tyktjfww.ex
- Copies filec:\windows\system32\ckvo.exe to c:\tyktjfww.ex
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\tyktjfww.ex
- Copies filec:\windows\system32\ckvo.exe to d:\tyktjfww.ex
- Deletes d:\autorun.in
- Creates d:\autorun.in
- Opens/modifes c:\autoexec.bat
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