Prevx Research Division
INSTALLMSN11AR.EXE
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Associated Malware Groups
The filename is associated with the malware groups:
- Worm
- Malicious Software
File Behavior
INSTALLMSN11AR.EXE has been seen to perform the following behavior:
- This Process is a file infector which modifies program files to include a copy of the infection
- This Process Deletes Other Processes From Disk
- Drops known malicious software during execution
- Modifies fixed, removable or USB drives using autorun to execute or spread infection
- Modifies TCP/IP settings
- Executes a Process
- Found on infected systems and resists interrogation by security products
- Writes to another Process's Virtual Memory (Process Hijacking)
- Disables the Notification Balloon for the Windows Security Center
- Adds products to the system registry
- Automatically changes your firewall settings to allow itself or other programs to communicate over the internet
- Modifies Windows Security Policies to restrict/expand User Privileges on the machine
- Disables Access to the Task Manager built into Windows
- Disables Access to the Windows Registry Editior
- Can communicate with other computer systems using HTTP protocols
- This process creates other processes on disk
- Creates new folders on the system
- Injects code into other processes
- Hooks the WININET.DLL function allowing it to read or copy Http and Https web page content and session information
INSTALLMSN11AR.EXE has been the subject of the following behavior:
- Executed as a Process
- Created as a process on disk
- Deleted as a process from disk
- Has code inserted into its Virtual Memory space by other programs
Country Of Origin
The filename INSTALLMSN11AR.EXE was first seen on Jan 7 2008 in the following geographical regions of the Webroot community:
- Saudi Arabia on Jan 7 2008
- South Africa on Jan 7 2008
- The United Arab Emirates on Apr 27 2008
- The United Kingdom on Jan 24 2010
- Uganda on Mar 12 2010
File Name Aliases
INSTALLMSN11AR.EXE can also use the following file names:
- INSTALLMSN11EN.EXE
- 55455036.EXE
- 76308241.DAT
- 47433062.EXE
- 31172747.EXE
- 78235549.EXE
Filesizes
The following file size has been seen:
- 155,601 bytes
- 155,431 bytes
- 155,001 bytes
- 161,255 bytes
- 186,189 bytes
- 155,051 bytes
- 236,971 bytes
- 155,081 bytes
- 155,171 bytes
File Type
The filename INSTALLMSN11AR.EXE refers to many versions of an executable program.
File Activity
One or more files with the name INSTALLMSN11AR.EXE creates, deletes, copies or moves the following files and folders:
- Deletes d:\autorun.inf
- Moves d:\1.taz to d:\autorun.inf
- Deletes c:\autorun.inf
- Moves c:\1.taz to c:\autorun.inf
- Deletes c:\documents and settings\user\local settings\application data\microsoft\cd burning\autorun.inf
- Deletes c:\documents and settings\user\local settings\application data\microsoft\cd burning\zPharaoh.exe
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