"XVASSDF.EXE"

File Behavior

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

• Executes a Process
• Copies files
• This process creates other processes on disk
• This Process Deletes Other Processes From Disk
• Registers a Dynamic Link Library File
• Injects code into other processes
• Enables an In Process Object/Server - Common with DLL Injections
• Drops known malicious software during execution
• Modifies fixed, removable or USB drives using autorun to execute or spread infection
• The Process is packed and/or encrypted using a software packing process
• Found on infected systems and resists interrogation by security products
• Adds a Registry Key (RUN) to auto start Programs on system start up
• Writes to another Process's Virtual Memory (Process Hijacking)
• Violates Windows/Vista Physical Memory Protection allowing it to look inside the data areas of other programs
• Terminates Processes
• Executes Processes stored in Temporary Folders
• Hooks the WININET.DLL function allowing it to read or copy Http and Https web page content and session information
• Injects code into other processes
• This Process is a file infector which modifies program files to include a copy of the infection
• Includes file creation code which could be used to test for interception by security products
• Uses low level functions to hide itself from the user and from system/security processes

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

• Added as a Registry auto start to load Program on Boot up
• Copied to multiple locations on the system
• Deleted as a process from disk
• Created as a process on disk
• This program is often downloaded from the web
• Executed as a Process
• Executed from Temporary Folders
• Has code inserted into its Virtual Memory space by other programs
• Terminated as a Process
• Registered as a Dynamic Link Library File