CSRCS.EXE

File Behavior

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

• The Process is packed and/or encrypted using a software packing process
• Disables the built in Windows File Protection System
• Modifies System Runtime Policies to limit system usability
• This process creates other processes on disk
• This Process Deletes Other Processes From Disk
• Executes a Process
• Checks for the use of debuggers
• Sets processes to start during user logon
• Opens browser pop ups
• Found on infected systems and resists interrogation by security products
• Registers a Dynamic Link Library File
• Drops known malicious software during execution
• Reads email address and phone book details
• Uses DNS to retrieve the IP address for web sites
• Writes to another Process's Virtual Memory (Process Hijacking)
• Can communicate with other computer systems using HTTP protocols
• Copies files
• Injects code into other processes
• Performs DNS look ups to resolve URL IP addresses
• The Process is polymorphic and can change its structure
• Adds products to the system registry
• Hooks the WININET.DLL function allowing it to read or copy Http and Https web page content and session information
• Creates or uses a background service to access the Internet using HTTP protocols
• Executes Processes stored in Temporary Folders
• Terminates Processes
• Adds a Registry Key (RUN) to auto start Programs on system start up
• Automatically changes your firewall settings to allow itself or other programs to communicate over the internet

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

• Created as a process on disk
• Executed as a Process
• Has code inserted into its Virtual Memory space by other programs
• Deleted as a process from disk
• Terminated as a Process
• Copied to multiple locations on the system
• Registered as a Dynamic Link Library File
• Added as a Registry auto start to load Program on Boot up
• Added as a Registry Key (RUNONCE) to auto start Programs on system start up
• Created as a new Background Service on the machine
• Executed from Temporary Folders