File Investigation Report
DP.EXE
System Back DoorPC Cleanup in 3 Easy Steps
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- System Back Door
- Cloaked Malware
File Behavior
DP.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
- Registers a Dynamic Link Library File
- Found on infected systems and resists interrogation by security products
- Executes a Process
DP.EXE 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
- Deleted as a process from disk
- Has code inserted into its Virtual Memory space by other programs
- Executed as a Process
- Copied to multiple locations on the system
Country Of Origin
The filename DP.EXE was first seen on Oct 14 2007 in the following geographical regions of the Prevx community:
- KOREA, REPUBLIC OF on Oct 14 2007
- The UNITED KINGDOM on Sep 19 2008
- HONG KONG on Sep 19 2008
- The EUROPEAN UNION on Sep 20 2008
- BRAZIL on Nov 20 2009
File Name Aliases
DP.EXE can also use the following file names:
- J3EWRO.EXE
- LC.EXE
- PJ.EXE
- FS.EXE
- FF.EXE
- DD3.EXE
Filesizes
The following file size has been seen:
- 117,552 bytes
- 117,015 bytes
- 19,853,312 bytes
- 166,912 bytes
File Type
The filename DP.EXE refers to many versions of an executable program.
File Activity
One or more files with the name DP.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\j3ewro.exe
- Deletes c:\windows\system32\jwedsfdo0.dll
- Creates c:\windows\system32\jwedsfdo0.dll
- Deletes c:\dp.ex
- Copies filec:\windows\system32\j3ewro.exe to c:\dp.ex
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\dp.ex
- Copies filec:\windows\system32\j3ewro.exe to d:\dp.ex
- 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.exe
- Opens/modifes c:\autoexec.bat
- Creates c:\docume~1\user\locals~1\temp\cc1.rar
- 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
Website Activity
One or more files with the name DP.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1079 Port:19
- Port 80 IP:61.162.230.87
- TCP:127.0.0.1:1081 Port:19
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