File Investigation Report
XRG4.EXE
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Associated Malware Groups
The filename is associated with the malware groups:
- Worm
- Malware Dropper
- Cloaked Malware
- Malware Downloader
File Behavior
XRG4.EXE has been seen to perform the following behavior:
- Adds a Registry Key (EXPLORER) to auto start Programs on system start Boot up
- Enables an In Process Object/Server - Common with DLL Injections
- Executes a Process
- This process creates other processes on disk
- The Process is packed and/or encrypted using a software packing process
- Adds products to the system registry
- This Process Deletes Other Processes From Disk
- Registers a Dynamic Link Library File
- Creates new file extentions so that Internet Explorer will automatically open and potentially execute additional file types
- Changes the Internet Explorer Search Page
- Creation and Registration of a Browser Helper Object in Internet Explorer
- Can communicate with other computer systems using HTTP protocols
- Writes to another Process's Virtual Memory (Process Hijacking)
XRG4.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
- Deleted as a process from disk
- Terminated as a Process
Country Of Origin
The filename XRG4.EXE was first seen on Sep 2 2008 in the following geographical regions of the Prevx community:
- SPAIN on Sep 2 2008
- The UNITED STATES on Sep 2 2008
- BELGIUM on Sep 18 2008
- The UNITED KINGDOM on Sep 18 2008
- GERMANY on Sep 27 2008
- CANADA on Oct 13 2008
File Name Aliases
XRG4.EXE can also use the following file names:
- XRG8.EXE
- XRG9.EXE
- XRG7.EXE
- XRG10.EXE
- XRG2.EXE
- XRG1.EXE
- XRG5.EXE
- XRG6.EXE
- 04174783.SVD
- 88167901.SVD
- 45993547.SVD
- XRG3.EXE
- XRG0.EXE
- 98D9BDDE-2EE6-4DF4-9DFE-F8E1693C70DF_XRG1.EXE
Filesizes
The following file size has been seen:
- 22,528 bytes
- 27,136 bytes
- 41,472 bytes
- 43,008 bytes
File Type
The filename XRG4.EXE refers to many versions of an executable program.
File Activity
One or more files with the name XRG4.EXE creates, deletes, copies or moves the following files and folders:
- create folder C:\Program Files\Applications
- Deletes c:\program files\applications\iebtm.ex
- Creates c:\program files\applications\iebtm.exe
- Creates c:\program files\applications\iebtu.exe
- Creates c:\docume~1\user\locals~1\temp\n5er0.bat
- Creates c:\program files\applications\iebt.dll
- Creates c:\program files\applications\iebtmm.exe
- Deletes c:\docume~1\user\locals~1\temp\n5er0.bat
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