File Investigation Report
BPU.EXE
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
BPU.EXE 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)
- Registers a Dynamic Link Library File
- Executes a Process
- Injects code into other processes
- Found on infected systems and resists interrogation by security products
- Loads and Executes a System Driver File
- Uses low level functions to hide itself from the user and from system/security processes
BPU.EXE 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
- Executed as a Process
- Has code inserted into its Virtual Memory space by other programs
- Deleted as a process from disk
- Executed from Temporary Folders
- Copied to multiple locations on the system
- This program is often downloaded from the web
- Registered as a Dynamic Link Library File
- Downloaded from covert web sites without the user knowing
- Terminated as a Process
Country Of Origin
The filename BPU.EXE was first seen on Aug 11 2008 in the following geographical regions of the Prevx community:
- MALAYSIA on Aug 11 2008
- BRAZIL on Aug 12 2008
Filesizes
The following file size has been seen:
- 90,258 bytes
- 89,407 bytes
- 434,322 bytes
File Type
The filename BPU.EXE refers to many versions of an executable program.
File Activity
One or more files with the name BPU.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\ckvo.exe
- Deletes c:\windows\system32\ckvo0.dll
- Creates c:\windows\system32\ckvo0.dll
- Deletes c:\bpu.ex
- Copies filec:\windows\system32\ckvo.exe to c:\bpu.ex
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\bpu.ex
- Copies filec:\windows\system32\ckvo.exe to d:\bpu.ex
- 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
Website Activity
One or more files with the name BPU.EXE 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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