Prevx Research Division
INST[1].EXE
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Associated Malware Groups
The filename is associated with the malware groups:
- Malware Downloader
- Malicious Software
- Malware Dropper
File Behavior
INST[1].EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- This Process Deletes Other Processes From Disk
- This process creates other processes on disk
- Injects code into other processes
- Performs DNS look ups to resolve URL IP addresses
- Found on infected systems and resists interrogation by security products
- Hooks the WININET.DLL function allowing it to read or copy Http and Https web page content and session information
- Executes a Process
- Registers a Dynamic Link Library File
- Creates new folders on the system
- Executes Processes stored in Temporary Folders
- The Process is polymorphic and can change its structure
- Adds a Registry Key (RUN) to auto start Programs on system start up
- Writes to another Process's Virtual Memory (Process Hijacking)
- Adds products to the system registry
- Can communicate with other computer systems using HTTP protocols
INST[1].EXE has been the subject of the following behavior:
- Executed as a Process
- Created as a process on disk
- Added as a Registry Key (RUNONCE) to auto start Programs on system start up
- Added as a Registry auto start to load Program on Boot up
- Registered as a Dynamic Link Library File
- Executed by Internet Explorer
- Has code inserted into its Virtual Memory space by other programs
- Copied to multiple locations on the system
- Deleted as a process from disk
- Terminated as a Process
Country Of Origin
The filename INST[1].EXE was first seen on Aug 31 2007 in the following geographical regions of the Webroot community:
- Spain on Aug 31 2007
- Japan on Apr 5 2008
- The United States on Apr 23 2008
- Turkey on Apr 23 2008
- The United Kingdom on Apr 1 2010
- Sweden on Oct 4 2010
- Czech Republic on Jan 21 2011
File Name Aliases
INST[1].EXE can also use the following file names:
- INDEX[1].EXE
- INST.EXE
- WINMATE.EXE
- WINMATE0.8.3(DESCUBRA O QUE DEIXA O SEU COMPUTADOR DEVAGAR E ELIMINE A CAUSA DO PROBLEMA).EXE
- WINMATE 8 2.EXE
- WIN PROBLEM INST.EXE
- WINMATE 0.8.6.EXE
- WINMATE091.EXE
- INST(1).EXE
- INST-1.EXE
- WINMATE INST.EXE
- WINMATE_0.9.14.EXE
- INST (1).EXE
- T55 WIN MATE SETUP.EXE
- WINMATEINST.EXE
- WINMATE_0.9.14[1].EXE
- 91_213_157_50[1].EXE
- 30693391
- W8O2A_P9.EXE.PART
- $RDXP5MS.EXE
- $RANAHIP.EXE
- 202082.EXE
- 781.EXE
- 783.EXE
- 748664~1.EXE
- 08009006.DAT
Filesizes
The following file size has been seen:
- 91,790 bytes
- 1,060,864 bytes
- 997,904 bytes
- 114,192 bytes
- 628,224 bytes
- 1,021 bytes
- 931,840 bytes
- 884,752 bytes
- 954,368 bytes
File Type
The filename INST[1].EXE is used by multiple object types including executable programs,objects.
File Activity
One or more files with the name INST[1].EXE creates, deletes, copies or moves the following files and folders:
- Creates c:\docume~1\user\locals~1\temp\temp2-fg7e4\InstallerExe.cab
- Deletes c:\docume~1\user\locals~1\temp\temp2-fg7e4\InstallerExe.cab
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