File Investigation Report
KAVO.EXE
Cloaked MalwarePC Cleanup in 3 Easy Steps
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Associated Malware Groups
The filename is associated with the malware groups:
- Cloaked Malware
- Malicious Software
- Worm
File Behavior
KAVO.EXE has been seen to perform the following behavior:
- This process creates other processes on disk
- This Process Deletes Other Processes From Disk
- The Process is packed and/or encrypted using a software packing process
- The Process is polymorphic and can change its structure
- Creates a new Background Service on the machine
- Loads and Executes a System Driver File
- Terminates Processes
- Copies files
- Registers a Dynamic Link Library File
- Executes a Process
- Injects code into other processes
- Found on infected systems and resists interrogation by security products
- Enables an In Process Object/Server - Common with DLL Injections
- Drops known malicious software during execution
- Modifies fixed, removable or USB drives using autorun to execute or spread infection
- Uses low level functions to hide itself from the user and from system/security processes
- Adds a Registry Key (RUN) to auto start Programs on system start up
- Writes to another Process's Virtual Memory (Process Hijacking)
KAVO.EXE has been the subject of the following behavior:
- Created as a process on disk
- Executed as a Process
- Deleted as a process from disk
- Added as a Registry auto start to load Program on Boot up
- Copied to multiple locations on the system
- Has code inserted into its Virtual Memory space by other programs
- Registered as a Dynamic Link Library File
- Executed by Internet Explorer
Country Of Origin
The filename KAVO.EXE was first seen on Aug 15 2007 in the following geographical regions of the Prevx community:
- VIET NAM on Aug 15 2007
- SPAIN on Aug 15 2007
- CHINA on Sep 11 2007
- The UNITED STATES on Sep 11 2007
- TAIWAN on May 2 2008
- KOREA, REPUBLIC OF on May 6 2008
- The EUROPEAN UNION on May 6 2008
- MALAYSIA on Jun 17 2008
File Name Aliases
KAVO.EXE can also use the following file names:
- QPE6.COM
- QJATW9AJ.EXE
- KA1NK.BAT
- NEW/KAVO.EXE
- NEW/0.COM
- H3HI1K3.EXE
- PKXFKRKI.BAT
- UBS.EXE
- DPU1.EXE
- NTDELECT.COM
- UBS[1].EXE
- CC[1].EXE
- N.COM
- 0.COM
- X.BAT
- 2.EXE
- 1.EXE
Filesizes
The following file size has been seen:
- 119,007 bytes
- 211,456 bytes
- 121,856 bytes
- 119,285 bytes
- 128,882 bytes
- 105,981 bytes
- 74,869 bytes
File Type
The filename KAVO.EXE refers to many versions of an executable program.
File Activity
One or more files with the name KAVO.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\kavo.exe
- Deletes c:\windows\system32\kavo0.dll
- Creates c:\windows\system32\kavo0.dll
- Deletes c:\dpu1.ex
- Copies filec:\windows\system32\kavo.exe to c:\dpu1.ex
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\dpu1.ex
- Copies filec:\windows\system32\kavo.exe to d:\dpu1.ex
- Deletes d:\autorun.in
- Creates d:\autorun.in
- Deletes c:\docume~1\user\locals~1\temp\cc.rar
- Deletes c:\windows\tt.exe
- Deletes c:\docume~1\user\locals~1\temp\help.exe
- Deletes c:\docume~1\user\locals~1\temp\ff.rar
- Deletes c:\boyedt.co
- Copies filec:\windows\system32\olhrwef.exe to c:\boyedt.co
- Deletes d:\boyedt.co
- Copies filec:\windows\system32\olhrwef.exe to d:\boyedt.co
- Deletes c:\docume~1\user\locals~1\temp\help1.rar
- Deletes c:\windows\system32\nmdfgds0.dl
- Opens/modifes c:\autoexec.bat
- Deletes c:\windows\system32\ddr.exe
- Creates c:\windows\system32\ddr.exe
- Deletes c:\windows\system32\afmain0.dll
- Creates c:\windows\system32\afmain0.dll
- Copies filec:\windows\notepad.exe to c:\windows\AhnRpta.exe
- Deletes c:\docume~1\user\locals~1\temp\mg12.tx
- Moves c:\docume~1\user\locals~1\temp\cc.exe to c:\docume~1\user\locals~1\temp\ker120.tmp
- Creates c:\windows\tt.exe
- Creates c:\docume~1\user\locals~1\temp\help.exe
- Deletes c:\windows\system32\cvsdfw.exe
- Copies filec:\windows\tt.exe to c:\windows\system32\cvsdfw.exe
- Deletes c:\windows\system32\otrewe0.dll
- Creates c:\windows\system32\otrewe0.dll
- 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
- Creates c:\docume~1\user\locals~1\temp\help1.rar
- Moves c:\docume~1\user\locals~1\temp\ff.exe to c:\docume~1\user\locals~1\temp\ker1CB.tmp
Website Activity
One or more files with the name KAVO.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1060 Port:17
- Port 80 IP:221.1.222.109
- TCP:127.0.0.1:1067 Port:18
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