Prevx Research Division
SVCNOST.EXE
Cloaked MalwareFree PC Cleanup from Webroot
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Cloaked Malware
- Malware Downloader
- Malicious Software
- Malware Dropper
File Behavior
SVCNOST.EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- Hooks the WININET.DLL function allowing it to read or copy Http and Https web page content and session information
- Executes a Process
- Creates new folders on the system
- Registers a Dynamic Link Library File
- This Process Deletes Other Processes From Disk
- This process creates other processes on disk
- Modifies firewall settings, without user permission so it is not blocked from accessing the Internet
- Injects code into other processes
- Performs DNS look ups to resolve URL IP addresses
- Found on infected systems and resists interrogation by security products
- Copies files
- Writes to another Process's Virtual Memory (Process Hijacking)
- Automatically changes your firewall settings to allow itself or other programs to communicate over the internet
- Adds a Registry Key (RUN) to auto start Programs on system start up
SVCNOST.EXE has been the subject of the following behavior:
- Executed as a Process
- Copied to multiple locations on the system
- Deleted as a process from disk
- Added as a Registry auto start to load Program on Boot up
- Created as a process on disk
- Created by processes which appear to be checking for interception by security products
- Has code inserted into its Virtual Memory space by other programs
Country Of Origin
The filename SVCNOST.EXE was first seen on Mar 27 2009 in the following geographical regions of the Webroot community:
- Europe on Mar 27 2009
- Canada on Apr 11 2009
- The United Kingdom on Dec 17 2009
- Lithuania on Aug 19 2010
- France on Aug 27 2010
- Romania on Feb 10 2011
File Name Aliases
SVCNOST.EXE can also use the following file names:
- SVCHOST[1].EXE
- SVCHOST_012.EXE
- SVCHOST_014.EXE
- SVCHOST_015.EXE
- SVCHOST_016.EXE
- SVCHOST_017.EXE
- SVCHOST_018.EXE
- SVCHOST_019.EXE
- SVCHOST_020.EXE
- SVCHOST_021.EXE
- SVCHOST_022.EXE
- SVCHOST_023.EXE
- SVCHOST_024.EXE
- SVCHOST_025.EXE
- SVCHOST_032.EXE
- SVCHOST.EXE
- SVCHOST(1).EXE
- SVCHOST_038.EXE
- SVCHOST_079.EXE
- SVCNOST111111111111111.EXE
- SVCNOST(n).EXE
- E.EXE
- 0.08174801022668898.EXE
- 0019F018.EXE
- 14812947.EXE
- 10267996.EXE
- 78123481.EXE
- 84030588.EXE
- 47963869.EXE
- 80764468.EXE
- 50325033.EXE
- 21768803.EXE
Filesizes
The following file size has been seen:
- 82,432 bytes
- 146,944 bytes
- 12,800 bytes
- 98,816 bytes
- 100,864 bytes
- 49,162 bytes
- 104,928 bytes
- 49,674 bytes
File Type
The filename SVCNOST.EXE refers to many versions of an executable program.
File Activity
One or more files with the name SVCNOST.EXE creates, deletes, copies or moves the following files and folders:
- Creates c:\documents and settings\user\application data\microsoft\profile.dat
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