Prevx Research Division
MSIEXEC.EXE
Cloaked MalwareFree PC Cleanup from Webroot
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Cloaked Malware
- Worm
- Malicious Software
- Malware Downloader
File Behavior
MSIEXEC.EXE has been seen to perform the following behavior:
- Found on infected systems and resists interrogation by security products
- Executes a Process
- Adds products to the system registry
- This process creates other processes on disk
- Writes to another Process's Virtual Memory (Process Hijacking)
- Can communicate with other computer systems using HTTP protocols
- Adds a Registry Key (RUN) to auto start Programs on system start up
- Executes Processes stored in Temporary Folders
- Downloads hidden code from covert web sites
- Downloads program file(s) and other content from the web
- This Process is a file infector which modifies program files to include a copy of the infection
- Copies files
- This Process Deletes Other Processes From Disk
- Enables an In Process Object/Server - Common with DLL Injections
- Looks at the contents of the autoexec.bat file
- Reads email address and phone book details
- Visits web sites on your PC without you knowing
- Registers a Dynamic Link Library File
- Creates new folders in the file system
- Uses low level functions to hide itself from the user and from system/security processes
- The process is run as an MSI installer package
- The Process is packed and/or encrypted using a software packing process
MSIEXEC.EXE has been the subject of the following behavior:
- This Process may have been infected by a file infecting virus
- Registered as a Dynamic Link Library File
- Created as a process on disk
- Created as a new Background Service on the machine
- Changes to the file command map within the registry
- Executed as a Process
- Has code inserted into its Virtual Memory space by other programs
- Added as a Registry auto start to load Program on Boot up
- Deleted as a process from disk
- The process is executed as part of a software installation process
- Executed from Temporary Folders
- Terminated as a Process
Country Of Origin
The filename MSIEXEC.EXE was first seen on May 29 2007 in the following geographical regions of the Webroot community:
- Mexico on May 29 2007
- The United States on Sep 10 2007
- on Mar 15 2008
- Spain on Apr 5 2008
- Germany on Apr 5 2008
- Canada on Oct 24 2008
- Turkey on May 24 2012
File Name Aliases
MSIEXEC.EXE can also use the following file names:
- AGENTSVR.EXE
- MUISETUP.EXE
- XPNETDIAG.EXE
- NOTEPAD.EXE
- HELPCTR.EXE
- MSCONFIG.EXE
- NOTIFLAG.EXE
- REGEDIT.EXE
- RTLUPD.EXE
- ACCWIZ.EXE
- AHUI.EXE
- INSTALL.EXE
- HIDEWIN.EXE
- ALCMTR.EXE
- CALC.EXE
- CHARMAP.EXE
- CLICONFG.EXE
- HLDS.EXE
- HLTV.EXE
- UNINSTALL.EXE
- SUPER SIMPLE WALL V2.7.EXE
- MSPAINT.EXE
- NOPDB.EXE
- MSHTA.EXE
- REGSVR32.EXE
- MSHTML3.EXE
- NTVDM.EXE
- SERVICES.EXE
- TASKMGR.EXE
- LSASS.EXE
- SCANREGW.EXE
- DLLHOST.EXE
- WUCRTUPD.EXE
- RUNDLL32.EXE
- MU MINIMIZER.EXE
- PREVXEDGEFREE.EXE
- AGRSMDEL.EXE
- USERINIT.EXE
- ALG.EXE
- SDEXE.EXE
- ATTRIB.EXE
- BANG.EXE
- HH.EXE
- HL.EXE
- ?????.MSI
- ???????.MSI
- ??????.MSI
- 49129087.EXE
Filesizes
The following file size has been seen:
- 1,288,704 bytes
- 82,944 bytes
- 184,320 bytes
- 242,688 bytes
- 97,792 bytes
- 89,088 bytes
- 103,936 bytes
File Type
The filename MSIEXEC.EXE is used by multiple object types including executable programs,Excel files.
File Activity
One or more files with the name MSIEXEC.EXE creates, deletes, copies or moves the following files and folders:
- create folder C:\Program Files\Common Files\?icrosoft.NET
- Creates c:\progra~1\common~1\icroso~1.net\msiexec.exe
- Opens/modifes c:\autoexec.bat
- Creates c:\progra~1\common~1\icroso~1.net\icroso~1.net\ctxad-576.000
- Creates c:\documents and settings\user\application data\Microsof
- Creates c:\documents and settings\user\application data\microsoft\Crypt
- Creates c:\documents and settings\user\application data\microsoft\crypto\RS
- Creates c:\documents and settings\user\application data\microsoft\crypto\rsa\S-1-5-21-3581506895-3253555194-74049757-100
- Creates c:\docume~1\user\locals~1\temp\ctxad.exe
- Deletes c:\progra~1\common~1\icroso~1.net\icroso~1.net\ctxad-576.000
- Deletes c:\docume~1\user\locals~1\temp\ctxad.exe
- create folder C:\Program Files\Outerinf
- create folder C:\Program Files\Outerinfo\F
- create folder C:\Program Files\Outerinfo\FF\component
- Deletes c:\docume~1\user\locals~1\temp\nst1D.tmp
- Creates c:\docume~1\user\locals~1\temp\NDrv.dll
- Creates c:\documents and settings\user\application data\Microsoft
- Creates c:\documents and settings\user\application data\microsoft\Crypto
- Creates c:\documents and settings\user\application data\microsoft\crypto\RSA
- Creates c:\documents and settings\user\application data\microsoft\crypto\rsa\S-1-5-21-3581506895-3253555194-74049757-1003
- Copies filec:\docume~1\user\locals~1\temp\NDrv.dll to c:\windows\system32\oryht.dll
- Deletes c:\docume~1\user\locals~1\temp\NDrv.dll
- Creates c:\docume~1\user\locals~1\temp\NDrv.exe
- Deletes c:\docume~1\user\locals~1\temp\NDrv.exe
- Creates c:\program files\outerinfo\OiUninstaller.exe
- Creates c:\program files\outerinfo\outerinfo.ico
- Creates c:\program files\outerinfo\Terms.rtf
- Creates c:\documents and settings\user\start menu\programs\outerinfo\Terms.lnk
- Creates c:\documents and settings\user\start menu\programs\outerinfo\Uninstall.lnk
- Creates c:\program files\outerinfo\ff\install.rdf
- Creates c:\program files\outerinfo\ff\chrome.man
- Creates c:\program files\outerinfo\ff\components\FF.dll
- Creates c:\program files\outerinfo\ff\components\OuterinfoAds.xpt
- create folder C:\WINDOWS\system32\?ymantec
- Copies filec:\docume~1\user\locals~1\temp\NDrv.exe to c:\windows\system32\?ymantec\w?crtupd.exe
- Deletes c:\docume~1\user\locals~1\temp\enuh\index.da
- Creates c:\docume~1\user\locals~1\temp\enuh\index.da
- Copies filec:\documents and settings\user\local settings\temporary internet files\content.ie5\7gddxlhz\client_settings_3[1].bin to c:\docume~1\user\locals~1\temp\enuh\T36.tmp
- Deletes c:\docume~1\user\locals~1\temp\tmp3D.tmp
- Creates c:\docume~1\user\locals~1\temp\tmp3D.tmp
- Deletes c:\documents and settings\user\application data\microsoft\crypto\rsa\s-1-5-21-3581506895-3253555194-74049757-1003\6e549e6605dc34d14ae6f5ce06712580_00c1ea3a-eca6-4e0c-81e8-ae9c3e708f9e
- Copies filec:\documents and settings\user\local settings\temporary internet files\content.ie5\2lcwzf76\campaigns8[1].enc to c:\docume~1\user\locals~1\temp\enuh\T41.tmp
- Copies filec:\documents and settings\user\local settings\temporary internet files\content.ie5\4cvefhyb\campaigns_c[1].bin to c:\docume~1\user\locals~1\temp\enuh\T46.tmp
- Deletes c:\docume~1\user\locals~1\temp\NDr4A.tmp
- Creates c:\docume~1\user\locals~1\temp\NDr4A.tmp
Website Activity
One or more files with the name MSIEXEC.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:17
- Port 80 IP:63.251.135.26
- Remote server connection to cu .outerinfo .ne
- TCP:127.0.0.1:1100 Port:20
- Port 80 IP:63.251.135.16
- Port 80 IP:63.251.135.17
- TCP:127.0.0.1:1116 Port:20
- Port 80 IP:63.251.135.15
- Port 80 IP:66.11.119.72
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