Prevx Research Division
4.EXE
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Spyware
- Bot
- Malware Dropper
- Malicious Software
File Behavior
4.EXE has been seen to perform the following behavior:
- This process creates other processes on disk
- Writes to another Process's Virtual Memory (Process Hijacking)
- The process hooks code into all running processes which could allow it to take control of the system or record keyboard input, mouse activity and screen contents
- Executes a Process
- The Process is packed and/or encrypted using a software packing process
- Hooks the WININET.DLL function allowing it to read or copy Http and Https web page content and session information
- Installs a browser helper object (BHO)
- Creates new folders on the system
- This Process Deletes Other Processes From Disk
- Performs DNS look ups to resolve URL IP addresses
- Can communicate with other computer systems using HTTP protocols
- Injects code into other processes
- Found on infected systems and resists interrogation by security products
- Adds a Registry Key (RUN) to auto start Programs on system start up
- Registers a Dynamic Link Library File
4.EXE has been the subject of the following behavior:
- Executed from Temporary Folders
- Executed as a Process
- Created as a process on disk
- Deleted as a process from disk
- Executed by Internet Explorer
- Has code inserted into its Virtual Memory space by other programs
- Terminated as a Process
- Copied to multiple locations on the system
- Added as a Registry auto start to load Program on Boot up
Country Of Origin
The filename 4.EXE was first seen on Jun 3 2007 in the following geographical regions of the Webroot community:
- Canada on Jun 3 2007
- Europe on Jun 19 2007
- Palestinian Territory on Jun 19 2007
- Netherlands on Jul 2 2007
- Sweden on Jul 7 2008
- The United States on Apr 13 2010
- Turkey on Apr 13 2010
- Chile on Jun 3 2010
File Name Aliases
4.EXE can also use the following file names:
- MSI8B.TMP
- MSI3124.TMP
- MSIB26F.TMP
- MSI777D.TMP
- MSIE18B.TMP
- MSI23B2.TMP
- MSIE915.TMP
- MSIECBE.TMP
- AUT5.TMP
- SYS79.EXE
- SYS9.EXE
- SYS6.EXE
- SYS3F.EXE
- SYS96.EXE
- SYS2A.EXE
- SYS22.EXE
- SYSEC.EXE
- SYS186.EXE
- SYSD.EXE
- SYS3.EXE
- SYS10.EXE
- SYS35.EXE
- SYS28.EXE
- SYS5.EXE
- SYS141.EXE
- SQCHI.A_PALTODAY-REMOVAL.EXE
- AUTORUN EATER (n).EXE
- TOOLS/COLLECTION/ϭɥ HIDDEN FILES.EXE
- MSI7782.TMP
- 4[1].EXE
- 1181006797-6664.EXE~
Filesizes
The following file size has been seen:
- 30,770 bytes
- 721,516 bytes
- 368,788 bytes
- 1,171,456 bytes
- 276,517 bytes
- 23,040 bytes
- 233,472 bytes
File Type
The filename 4.EXE refers to many versions of an executable program.
File Activity
One or more files with the name 4.EXE creates, deletes, copies or moves the following files and folders:
- Deletes c:\windows\Sys6.tmp
- Copies filec:\program files\pchealthcenter\sex2.ico to c:\windows\system32\sex2.ic
- Creates c:\documents and settings\user\desktop\0nline p0rn.ur
- Copies filec:\program files\pchealthcenter\sex1.ico to c:\windows\system32\sex1.ic
- Creates c:\documents and settings\user\desktop\FREE gallery of the day.ur
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