Prevx Research Division
KXVO.EXE
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Rootkit
- Cloaked Malware
- Malicious Software
File Behavior
KXVO.EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- Creates a new Background Service on the machine
- Loads and Executes a System Driver File
- This Process Deletes Other Processes From Disk
- This process creates other processes on disk
- Executes a Process
- Registers a Dynamic Link Library File
- Injects code into other processes
- Disables the Notification Balloon for the Windows Security Center
- Adds products to the system registry
- Automatically changes your firewall settings to allow itself or other programs to communicate over the internet
- Modifies Windows Security Policies to restrict/expand User Privileges on the machine
- Disables Access to the Task Manager built into Windows
- Disables Access to the Windows Registry Editior
- Writes to another Process's Virtual Memory (Process Hijacking)
- Changes the Windows Security Center to stop Antivirus status alerts from being displayed
- Changes the Windows Security Center to stop Firewall status alerts from being displayed
- Changes the Windows Security Center to stop Firewall override alerts from being displayed
- Changes the Windows Security Center to stop warnings from being displayed if automatic Windows Updates are not enabled
- Disables safe mode on your PC
- Injects code into other processes
- The Process is polymorphic and can change its structure
- Adds a Registry Key (RUN) to auto start Programs on system start up
- 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
- Installs a browser helper object (BHO)
- Copies files
- Performs DNS look ups to resolve URL IP addresses
KXVO.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
- Terminated as a Process
- Executed from Temporary Folders
- This program is often downloaded from the web
Country Of Origin
The filename KXVO.EXE was first seen on Oct 19 2007 in the following geographical regions of the Webroot community:
- Spain on Oct 19 2007
- Korea, Republic of on Oct 19 2007
- The United States on Oct 22 2008
- Philippines on Dec 2 2009
- The United Kingdom on Dec 2 2009
- Italy on Jun 20 2010
Filesizes
The following file size has been seen:
- 169,597 bytes
- 243,200 bytes
- 149,214 bytes
- 200,192 bytes
- 148,992 bytes
- 152,093 bytes
- 101,304 bytes
- 407,547,552 bytes
File Type
The filename KXVO.EXE is used by multiple object types including executable programs,objects.
File Activity
One or more files with the name KXVO.EXE creates, deletes, copies or moves the following files and folders:
- Creates c:\windows\system32\cscript.exe
- Creates c:\docume~1\user\locals~1\temp\omq.dll
- Deletes c:\docume~1\user\locals~1\temp\jr.sy
- Creates c:\docume~1\user\locals~1\temp\jr.sys
- Deletes c:\windows\system32\kxvo.exe
- Deletes c:\windows\system32\ieso0.dll
- Creates c:\windows\system32\ieso0.dll
- Deletes c:\windows\system32\fool0.dll
- Creates c:\windows\system32\fool0.dll
- Deletes c:\lqxo8w.cm
- Copies filec:\windows\system32\kxvo.exe to c:\lqxo8w.cm
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\lqxo8w.cm
- Copies filec:\windows\system32\kxvo.exe to d:\lqxo8w.cm
- Deletes d:\autorun.in
- Creates d:\autorun.in
- Deletes c:\docume~1\user\locals~1\temp\ll.rar
- Deletes c:\docume~1\user\locals~1\temp\ll.ex
- Opens/modifes c:\autoexec.bat
- Deletes c:\docume~1\user\locals~1\temp\8er.sy
- Creates c:\docume~1\user\locals~1\temp\8er.sys
- Copies filec:\docume~1\user\locals~1\temp\ll.exe to c:\windows\system32\kxvo.exe
- Deletes c:\windows\system32\fool1.dll
- Creates c:\windows\system32\fool1.dll
Website Activity
One or more files with the name KXVO.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1097 Port:18
- Port 80 IP:60.169.2.226
- TCP:127.0.0.1:1099 Port:18
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