File Investigation Report
YSSJNNGM.CMD
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
YSSJNNGM.CMD has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- This process creates other processes on disk
- Creates a new Background Service on the machine
- This Process Deletes Other Processes From Disk
- Loads and Executes a System Driver File
- 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
YSSJNNGM.CMD 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
- Copied to multiple locations on the system
- Executed as a Process
- Deleted as a process from disk
- This program is often downloaded from the web
- Registered as a Dynamic Link Library File
- Executed from Temporary Folders
Country Of Origin
The filename YSSJNNGM.CMD was first seen on Aug 22 2008 in the following geographical regions of the Prevx community:
- Europe on Aug 22 2008
- Germany on Mar 13 2009
File Name Aliases
YSSJNNGM.CMD can also use the following file names:
- DDR.EXE
- CKVO.EXE
- HELP.EXE
- IQE68O.BAT
- AUTORUN.INF
- C9HEHPA.BAT
Filesizes
Files using the name YSSJNNGM.CMD have been seen with the following file size:
- 91,122 bytes
File Type
The filename YSSJNNGM.CMD refers to many versions of an executable program.
File Activity
One or more files with the name YSSJNNGM.CMD 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:\yssjnngm.cm
- Copies filec:\windows\system32\ckvo.exe to c:\yssjnngm.cm
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\yssjnngm.cm
- Copies filec:\windows\system32\ckvo.exe to d:\yssjnngm.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.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 YSSJNNGM.CMD 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:19
- Port 80 IP:60.169.1.92
- TCP:127.0.0.1:1100 Port:18
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