File Investigation Report
JIWSXH39.EXE
Cloaked MalwarePC Cleanup in 3 Easy Steps
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Associated Malware Groups
The unsafe files using this name are associated with the malware group:
- Cloaked Malware
File Behavior
JIWSXH39.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)
- Executes a Process
- Loads and Executes a System Driver File
- The Process is polymorphic and can change its structure
- Registers a Dynamic Link Library File
- Injects code into other processes
- This Process is a file infector which modifies program files to include a copy of the infection
- Modifies fixed, removable or USB drives using autorun to execute or spread infection
- Looks at the contents of the autoexec.bat file
- Reads email address and phone book details
- Uses DNS to retrieve the IP address for web sites
- Visits web sites on your PC without you knowing
JIWSXH39.EXE has been the subject of the following behavior:
- Executed by Internet Explorer
- Executed as a Process
- Created as a process on disk
- Downloaded from covert web sites without the user knowing
- Copied to multiple locations on the system
- Deleted as a process from disk
- Added as a Registry auto start to load Program on Boot up
- Has code inserted into its Virtual Memory space by other programs
- Executed from Temporary Folders
- Added as a Registry Key (RUNONCE) to auto start Programs on system start up
Country Of Origin
The filename JIWSXH39.EXE was first seen on Mar 29 2008 in the following geographical regions of the Prevx community:
- INDIA on Mar 29 2008
- SINGAPORE on Mar 29 2008
- SPAIN on Jul 2 2008
- EGYPT on Jul 2 2008
File Name Aliases
JIWSXH39.EXE can also use the following file names:
- HELP[n].EXE
- MGG[n].EXE
- MGG.EXE
- AMVO.EXE
- HELP.EXE
- 65596103.EXE
- 02393623.EXE
- 73254761.SVD
Filesizes
The following file size has been seen:
- 103,421 bytes
- 103,424 bytes
- 123,904 bytes
File Type
The filename JIWSXH39.EXE refers to many versions of an executable program.
File Activity
One or more files with the name JIWSXH39.EXE creates, deletes, copies or moves the following files and folders:
- Creates c:\docume~1\user\locals~1\temp\5qno.dll
- Deletes c:\docume~1\user\locals~1\temp\t2vm89w.sy
- Creates c:\docume~1\user\locals~1\temp\t2vm89w.sys
- Deletes c:\windows\system32\amvo.exe
- Deletes c:\windows\system32\amvo0.dll
- Creates c:\windows\system32\amvo0.dll
- Deletes c:\jiwsxh39.ex
- Copies filec:\windows\system32\amvo.exe to c:\jiwsxh39.ex
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\jiwsxh39.ex
- Copies filec:\windows\system32\amvo.exe to d:\jiwsxh39.ex
- Deletes d:\autorun.in
- Creates d:\autorun.in
- Deletes c:\docume~1\user\locals~1\temp\help.rar
- Deletes c:\docume~1\user\locals~1\temp\help.ex
- Opens/modifes c:\autoexec.bat
- Deletes c:\docume~1\user\locals~1\temp\4m.sy
- Creates c:\docume~1\user\locals~1\temp\4m.sys
- Copies filec:\docume~1\user\locals~1\temp\help.exe to c:\windows\system32\amvo.exe
- Deletes c:\windows\system32\amvo1.dll
- Creates c:\windows\system32\amvo1.dll
Website Activity
One or more files with the name JIWSXH39.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:18
- Port 80 IP:60.169.1.92
- TCP:127.0.0.1:1099 Port:18
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