File Investigation Report
CJRP8.COMRootkit
Your PC is infected. The file called CJRP8.COM is considered unsafe and there may be other infections on your PC.
You should urgently check your PC and remove any malicious software including CJRP8.COM as soon as possible. The free version of Prevx CSI will scan your PC for millions of spyware and malware infections in less than 2 minutes. Don't put your confidential data, or your identity at risk, check your PC now with Prevx CSI.
Associated Malware Groups
The filename is associated with the malware groups:
- Rootkit
- Cloaked Malware
File Behavior
CJRP8.COM 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
- This Process Deletes Other Processes From Disk
- Writes to another Process's Virtual Memory (Process Hijacking)
- Executes a Process
- Registers a Dynamic Link Library File
- Injects code into other processes
CJRP8.COM has been the subject of the following behavior:
- Added as a Registry auto start to load Program on Boot up
- Executed from Temporary Folders
- Created as a process on disk
- Has code inserted into its Virtual Memory space by other programs
- Deleted as a process from disk
- Copied to multiple locations on the system
- Executed as a Process
Country Of Origin
The filename CJRP8.COM was first seen on Aug 9 2008 in the following geographical region of the Prevx community:
- SPAIN on Aug 9 2008
File Name Aliases
CJRP8.COM can also use the following file names:
- J3EWRO.EXE
- FF.EXE
- DPTTQK~1.COM
- 59567062.SVD
- 32751559.COM
- 32752028.SVD
Filesizes
The following file size has been seen:
- 103,006 bytes
- 104,947 bytes
- 105,424 bytes
Vendor, Product and Version Information
These files have no vendor, product or version information specified in the file header.
File Type
The filename CJRP8.COM is used by multiple object types including objects,executable programs.
File Activity
One or more files with the name CJRP8.COM 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\j3ewro.exe
- Deletes c:\windows\system32\jwedsfdo0.dll
- Creates c:\windows\system32\jwedsfdo0.dll
- Deletes c:\cjrp8.co
- Copies filec:\windows\system32\j3ewro.exe to c:\cjrp8.co
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\cjrp8.co
- Copies filec:\windows\system32\j3ewro.exe to d:\cjrp8.co
- Deletes d:\autorun.in
- Creates d:\autorun.in
- Deletes c:\docume~1\user\locals~1\temp\cc1.rar
- Deletes c:\docume~1\user\locals~1\temp\cc.ex
- Deletes c:\docume~1\user\locals~1\temp\ff1.rar
- Deletes c:\docume~1\user\locals~1\temp\ff.ex
- Opens/modifes c:\autoexec.bat
- Creates c:\docume~1\user\locals~1\temp\cc1.rar
- Deletes c:\docume~1\user\locals~1\temp\cc.exe
- Creates c:\docume~1\user\locals~1\temp\cc.exe
- Deletes c:\windows\system32\kxvo.exe
- Copies filec:\docume~1\user\locals~1\temp\cc.exe to c:\windows\system32\kxvo.exe
- Deletes c:\windows\system32\kxvo0.dll
- Creates c:\windows\system32\kxvo0.dll
- Creates c:\docume~1\user\locals~1\temp\ff1.rar
- Deletes c:\docume~1\user\locals~1\temp\ff.exe
- Creates c:\docume~1\user\locals~1\temp\ff.exe
- Copies filec:\docume~1\user\locals~1\temp\ff.exe to c:\windows\system32\j3ewro.exe
- Deletes c:\windows\system32\jwedsfdo1.dll
- Creates c:\windows\system32\jwedsfdo1.dll
Registry Activity
One or more files with the name CJRP8.COM creates or modifies the following registry keys and values:
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run jvsoft C:\WINDOWS\system32\j3ewro.exe
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced Hidden value:
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced ShowSuperHidden value:
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer NoDriveTypeAutoRun [REG_DWORD, value: 00000091]
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run tasoft C:\WINDOWS\system32\kxvo.exe
Website Activity
One or more files with the name CJRP8.COM interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1088 Port:19
- Port 80 IP:61.162.230.87
- TCP:127.0.0.1:1095 Port:18
- TCP:127.0.0.1:1098 Port:18
- TCP:127.0.0.1:1100 Port:19