Prevx Research Division
DP.EXE
System Back DoorFree PC Cleanup from Webroot
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- System Back Door
- Cloaked Malware
- Malicious Software
File Behavior
DP.EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- Writes to another Process's Virtual Memory (Process Hijacking)
- Executes a Process
- Registers a Dynamic Link Library File
- This process creates other processes on disk
- Creates a new Background Service on the machine
- Loads and Executes a System Driver File
- This Process Deletes Other Processes From Disk
- Found on infected systems and resists interrogation by security products
DP.EXE has been the subject of the following behavior:
- Executed from Temporary Folders
- Created as a process on disk
- Has code inserted into its Virtual Memory space by other programs
- Executed as a Process
- Registered as a Dynamic Link Library File
- Deleted as a process from disk
- Terminated as a Process
- Added as a Registry auto start to load Program on Boot up
- 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 Webroot community:
- Korea, Republic of on Oct 14 2007
- on Sep 19 2008
- Hong Kong on Sep 19 2008
- Taiwan on Sep 20 2008
- The United Kingdom on Apr 10 2010
- Ecuador on May 24 2012
Filesizes
The following file size has been seen:
- 15,397 bytes
- 117,552 bytes
- 117,015 bytes
- 166,912 bytes
- 7,238,144 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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