RVHOST.EXE - Dangerous

What you should do about RVHOST.EXE:

Your PC is infected. The file called RVHOST.EXE is considered unsafe and there may be other infections on your PC.

You should urgently check your PC and remove any malicious software including RVHOST.EXE as soon as possible. The free version of Prevx CSI will scan your PC for millions of spyware and malware infections in less than 2 minutes. Don't take the risk, check your PC now.

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What we know about RVHOST.EXE:

The filename RVHOST.EXE was first seen on May 22 2007 in PAKISTAN. It has also been seen in the following geographical regions of the Prevx community:

  • MALAYSIA on Sep 24 2007
  • SPAIN on Mar 18 2008
  • The UNITED KINGDOM on Mar 18 2008
The filename RVHOST.EXE refers to many versions of an executable program.

The most common file size is 268,800 bytes. But the following file sizes have also been seen:

  • 272,384 bytes
  • 268,216 bytes
  • 345,088 bytes
  • 268,288 bytes

The filename is associated with the malware group Worm/Delf.CYB.Some files using the name RVHOST.EXE are also associated with the malware groups:
  • WORM.SOHANAT.AB
  • Worm/Autoit.PR
  • WORM.VARIANT!WORM

These files may have the following Vendor, Product, Version Information in the file header

RVHOST.EXE has been seen to perform the following behavior(s):

  • Modifies Windows Initialization And System Settings Used On Start up
  • The Process is packed and/or encrypted using a software packing process
  • Executes a Process
  • 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
  • Registers a Dynamic Link Library File
  • This Process Creates Other Processes On Disk
  • Writes to another Process's Virtual Memory (Process Hijacking)
  • 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
  • Disables the built in Windows File Protection System
  • Modifies Windows Security Policies to restrict/expand User Privileges on the machine
  • Disables Access to the Task Manager built into Windows
  • Disables Access to the Windows Registry Editior
  • Adds a Registry Key (RUN) to auto start Programs on system start up
  • Creates a new Background Service on the machine
  • Looks at the contents of the autoexec.bat file
  • Reads email address and phone book details
  • Visits web sites on your PC without you knowing
  • Injects code into other processes
  • Uses DNS to retrieve the IP address for web sites
  • Uses your PC to connect to Chat rooms

RVHOST.EXE has been the subject of the following behavior(s):

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

RVHOST.EXE can also use the following file names:

  • SYNC PLAYLISTS.EXE
  • MY PICTURES.EXE
  • SAMPLE PICTURES.EXE
  • MY VIDEOS.EXE
  • NEW FOLDER.EXE
  • S-1-5-21-220523388-1715567821-839522115-1005.EXE
  • FLOWERS.EXE
  • GEDDES.EXE
  • PETS.EXE
  • STILLLIFE.EXE
  • WYLAND.EXE
  • BLUE.EXE
  • NEUTRON.EXE
  • IMAGES.EXE
  • 200705.EXE
  • 200705A0.EXE
  • _PALBTN.EXE
  • 320X240.EXE
  • 170X128.EXE
  • 56X42.EXE
  • 200601.EXE
  • 200709.EXE
  • 200709A0.EXE
  • 200708.EXE
  • 05379705.EXE
  • 18726983.SVD
  • \\
  • SONG.EXE
  • SONGS.EXE
  • KNOCKED.UP[2007][UNRATED.EDITION]DVDRIP[ENG]-AXXO.EXE
  • STARTUP.EXE
  • DC1000.EXE
  • DC986.EXE
  • DC987.EXE
  • DC988.EXE
  • DC989.EXE
  • DC990.EXE
  • DC991.EXE
  • DC992.EXE
  • DC993.EXE
  • DC994.EXE
  • DC995.EXE
  • DC996.EXE
  • DC997.EXE
  • DC998.EXE
  • DC999.EXE
  • DC872.EXE
  • DC870.EXE
  • DD49.EXE
  • DD50.EXE
  • DD51.EXE
  • DD52.EXE
  • DD53.EXE
  • DD54.EXE
  • DD55.EXE
  • DD56.EXE
  • DD57.EXE
  • DD58.EXE
  • DD59.EXE
  • DD60.EXE
  • DD48.EXE
  • DD47.EXE
  • XLSTART.EXE
  • PICTURES.EXE
  • DE1.EXE
  • WESLEY YOUNG LIFE.EXE
  • DE2.EXE
  • EXTRAS.EXE
  • AVG ANTI-VIRUS 7.362 FULL.EXE
  • AVG.EXE
  • 45377867.SVD

Virus, Spyware & Malware Center