Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Banking Info Stealer
- Malware Downloader
File Behavior
OK[1].EXE has been seen to perform the following behavior:
- Found on infected systems and resists interrogation by security products
- The Process is packed and/or encrypted using a software packing process
- Executes a Process
- Injects code into other processes
- Creates new folders in the file system
- Creates a new Background Service on the machine
- Looks at the contents of the autoexec.bat file
- Reads email address and phone book details
- Writes to another Process's Virtual Memory (Process Hijacking)
- This process creates other processes on disk
- Registers a Dynamic Link Library File
OK[1].EXE has been the subject of the following behavior:
- Copied to multiple locations on the system
- Executed as a Process
- Added as a Registry auto start to load Program on Boot up
- Created as a process on disk
- Created as a new Background Service on the machine
- Deleted as a process from disk
- Has code inserted into its Virtual Memory space by other programs
- Terminated as a Process
- Registered as a Dynamic Link Library File
Country Of Origin
The filename OK[1].EXE was first seen on Nov 1 2007 in the following geographical regions of the Webroot community:
- on Nov 1 2007
- Europe on Nov 1 2007
- Canada on Mar 15 2008
- Spain on Mar 15 2008
- Belarus on Feb 11 2010
- The United Kingdom on Feb 11 2010
- Botswana on Apr 8 2011
- South Africa on Apr 8 2011
- The United States on Dec 13 2011
Filesizes
The following file size has been seen:
- 24,576 bytes
- 45,568 bytes
- 117,248 bytes
- 640,000 bytes
- 155,230 bytes
- 18,610 bytes
File Type
The filename OK[1].EXE refers to many versions of an executable program.
File Activity
One or more files with the name OK[1].EXE creates, deletes, copies or moves the following files and folders:
- create folder C:\WINDOWS\system32\wsnpoem
- Deletes c:\windows\system32\ntos.exe
- Opens/modifes c:\autoexec.bat
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