YINSTBROKER.EXE

File Behavior

YINSTBROKER.EXE has been seen to perform the following behavior:

• Found on infected systems and resists interrogation by security products
• Enables a COM Object/Server on the Local Machine
• This process creates other processes on disk
• Executes Processes stored in Temporary Folders
• Writes to another Process's Virtual Memory (Process Hijacking)
• Executes a Process
• This Process Deletes Other Processes From Disk
• Hooks the WININET.DLL function allowing it to read or copy Http and Https web page content and session information
• Changes the Windows Security Center to stop Antivirus status alerts from being displayed
• Changes the Windows Security Center to stop Firewall status alerts from being displayed
• Changes the Windows Security Center to stop Firewall override alerts from being displayed
• Changes the Windows Security Center to stop warnings from being displayed if automatic Windows Updates are not enabled
• Creates a new Background Service on the machine
• Injects code into other processes

YINSTBROKER.EXE has been the subject of the following behavior:

• Executed as a Process
• Created as a process on disk
• Enabled as a COM Object/Server on the Local Machine
• Has code inserted into its Virtual Memory space by other programs
• Registered as a Dynamic Link Library File
• Created by processes which appear to be checking for interception by security products
• Deleted as a process from disk