U.EXE

File Behavior

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

• This Process sends MIME Email
• The Process is packed and/or encrypted using a software packing process
• Adds a Registry Key (RUN) to auto start Programs on system start up
• Executes a Process
• Registers a Dynamic Link Library File
• Enables the system to use a Communications Proxy Server
• Writes to another Process's Virtual Memory (Process Hijacking)
• Can communicate with other computer systems using HTTP protocols
• This Process Deletes Other Processes From Disk
• Makes outbound connections to other computers using NETBIOSOUT protocols
• Adds products to the system registry
• This process creates other processes on disk
• Creates or uses a background service to access the Internet using HTTP protocols
• Injects code into other processes
• Removes Scheduled Tasks from the Windows task queue
• Executes Processes stored in Temporary Folders
• Found on infected systems and resists interrogation by security products
• Creates system tray popups, messages, errors and security warnings
• Uses DNS to retrieve the IP address for web sites
• Visits web sites on your PC without you knowing
• Registers Start Of Authority configuration settings for email servers
• Registers or amends SMTP Mail Servers on the public internet
• Automatically changes your firewall settings to allow itself or other programs to communicate over the internet
• The process hooks code into all running processes which could allow it to take control of the system or record keyboard input, mouse activity and screen contents
• Copies files
• Modifies firewall settings, without user permission so it is not blocked from accessing the Internet

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

• Created as a process on disk
• Executed as a Process
• Terminated as a Process
• Executed from Temporary Folders
• Deleted as a process from disk
• Executed by Internet Explorer
• Has code inserted into its Virtual Memory space by other programs
• Added as a Registry auto start to load Program on Boot up
• Created by processes which appear to be checking for interception by security products
• Registered as a Dynamic Link Library File
• Copied to multiple locations on the system