File Investigation Report
CKVO.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
- Fraudulent Security Program
File Behavior
CKVO.EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- Executes a Process
- Injects code into other processes
- This process creates other processes on disk
- Copies files
- This Process Deletes Other Processes From Disk
- Registers a Dynamic Link Library File
- This Process looks to see what security products and services are running on the system
- Disables safe mode on your PC
- Creates a new Background Service on the machine
- 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
- The Process is polymorphic and can change its structure
- Loads and Executes a System Driver File
- Adds a Registry Key (RUN) to auto start Programs on system start up
- Writes to another Process's Virtual Memory (Process Hijacking)
- Found on infected systems and resists interrogation by security products
- Uses low level functions to hide itself from the user and from system/security processes
- Makes outbound connections to other computers using NETBIOSOUT protocols
CKVO.EXE has been the subject of the following behavior:
- Added as a Registry auto start to load Program on Boot up
- Copied to multiple locations on the system
- Deleted as a process from disk
- Executed as a Process
- Created as a process on disk
- Has code inserted into its Virtual Memory space by other programs
- This program is often downloaded from the web
- Executed from Temporary Folders
- Registered as a Dynamic Link Library File
- Downloaded from covert web sites without the user knowing
- Executed by Internet Explorer
Country Of Origin
The filename CKVO.EXE was first seen on May 9 2008 in the following geographical regions of the Prevx community:
- The UNITED KINGDOM on May 9 2008
- ITALY on Aug 5 2008
- TURKEY on Aug 5 2008
- JORDAN on Aug 13 2008
- SINGAPORE on Aug 13 2008
- SAUDI ARABIA on Aug 20 2008
- SPAIN on Aug 27 2008
File Name Aliases
CKVO.EXE can also use the following file names:
- XIH9.CMD
- DPTUWW~1.CMD
- 24841504.SVD
- EGBJF.CMD
- HELP.EXE
- DPTRNE~1.COM
- J.COM
- 26184453.SVD
- DDR.EXE
- SVDIOAJM.CMD
- 49355521.SVD
- 32802997.EXE
- 32479025.EXE
- 99849547.CMD
- K.COM
- 82018759.COM
- PH.COM
- SEUN PICS... 002.COM
- EV60A2.CMD
- 11904703.SVD
- B3B9U.COM
- BPU.EXE
- 2.CMD
- 37679663.CMD
- 19363344.CMD
- 48778678.CMD
- 05504555.EXE
- 94785234.EXE
- CABITO.DDT
- 39992734.EXE
- 54981594.EXE
- 62381237.EXE
- 37333088.CMD
- 45543386.EXE
- 17109893.DAT
- IQE68O.BAT
Filesizes
The following file size has been seen:
- 207,872 bytes
- 104,046 bytes
- 89,175 bytes
- 147,456 bytes
- 52,736 bytes
- 92,161 bytes
- 178,176 bytes
- 89,917 bytes
- 92,123 bytes
File Type
The filename CKVO.EXE refers to many versions of an executable program.
File Activity
One or more files with the name CKVO.EXE creates, deletes, copies or moves the following files and folders:
- Creates c:\windows\system32\wmdrtc32.dl_
- Deletes c:\windows\system32\drivers\mnose.sys
- Creates c:\windows\system32\drivers\mnose.sys
- Creates c:\KUKU400alpha
- Creates d:\KUKU400alpha
- Deletes c:\KUKU400alpha
- Deletes d:\KUKU400alpha
- Creates f:\KUKU400alpha
- Creates g:\KUKU400alpha
- Creates h:\KUKU400alpha
- Creates i:\KUKU400alpha
- Creates j:\KUKU400alpha
- Creates k:\KUKU400alpha
- Creates l:\KUKU400alpha
- Creates m:\KUKU400alpha
- Creates n:\KUKU400alpha
- Creates o:\KUKU400alpha
- Creates p:\KUKU400alpha
- Creates q:\KUKU400alpha
- Creates r:\KUKU400alpha
- Creates z:\KUKU400alph
- Deletes c:\windows\system32\drivers\opphj.sy
- Creates c:\windows\system32\drivers\klif.sys
- Creates c:\windows\system32\drivers\opphj.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
- Creates c:\docume~1\user\locals~1\temp\windlki.exe
- Deletes c:\docume~1\user\locals~1\temp\windlki.exe
- Deletes c:\xih9.cm
- Copies filec:\windows\system32\ckvo.exe to c:\xih9.cm
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\xih9.cm
- Copies filec:\windows\system32\ckvo.exe to d:\xih9.cm
- 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.exe
- Deletes c:\gi2ky.ex
- Copies filec:\windows\system32\olhrwef.exe to c:\gi2ky.ex
- Deletes d:\gi2ky.ex
- Copies filec:\windows\system32\olhrwef.exe to d:\gi2ky.ex
- Creates c:\docume~1\user\locals~1\temp\help1.rar
- Creates c:\docume~1\user\locals~1\temp\help.exe
- Deletes c:\windows\system32\olhrwef.exe
- Copies filec:\docume~1\user\locals~1\temp\help.exe to c:\windows\system32\olhrwef.exe
- Deletes c:\windows\system32\nmdfgds0.dll
- Creates c:\windows\system32\nmdfgds0.dll
Network Activity
One or more files with the name CKVO.EXE performs the following network events:
- DNS Lookup65.55.21.250 www.microsoft.com
Website Activity
One or more files with the name CKVO.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- www .kukutrustnet666 .info / mrow_nrl / ?rnd=82156&id=818283960
- remadon .
- Port 80 IP:82.165.87.207
- Port 80 IP:72.232.11.26
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