If you don't know what a process is or you come across a suspicious file, search the name using Google or the following links:BC's File DatabaseBC's Startup Programs DatabaseFile Research CenterThreatExpert Malware SearchIf no search results are found, you are given the option to "Submit a New Sample".
is a generic host
process name for a group of services that are run from dynamic-link libraries (DLLs). It is not unusual for multiple
instances of Svchost.exe running at the same time. How to determine what services are running under a Svchost.exe process
Determining whether a file is malware or a legitimate process sometimes depends on the location (path) it is running from. One of the ways that malware tries to hide is to give itself the same name as a critical system file. However, it then places itself in a different location on your computer. A file's properties may give a clue to identifying it. Right-click
on the file, Properties
and examine the General and Version tabs.
You can download and use Process Explorer
or System Explorer
to investigate all running processes and gather additional information to identify and resolve problems. These tools will show the process CPU usage, a description and its path location
. If you right-click on the file in question and select properties, you will see more details about the file. To get a list of processes shown by Process Explorer, go to file and choose Save as...
to create a log named Procexp.txt
in the same folder where Process Explorer resides.
The Process Explorer window shows two panes by default: the upper pane
is always a process list and the bottom pane
either shows the list of DLLs loaded into the process selected in the upper pane, or the list of operating system resource handles (files, Registry keys, synchronization objects) the process has open. In the menu at the top select View > Lower Pane View to change between DLLs and Handles.
If you have XP Pro, you can use Tasklist
to display a list of active processes.
Go to Start > Run and type: cmd
At the command prompt type: tasklist /svc >c:\taskList.txt
Then go to Start > Run and type: c:\taskList.txt
press Ok to view the list of processes.
The /SVC switch shows the list of active services in each process.
For help and syntax information, type the following command: tasklist /?
press ENTER or see: Syntax options
You can also use the WMI command-line utility
to view and list processes.
Go to Start > Run and type: cmd
At the command prompt type:WMIC /OUTPUT:C:\ProcessList.txt PROCESS get Caption,Commandline,Processid
or you can type:WMIC /OUTPUT:C:\ProcessList.txt path win32_process get Caption,Processid,Commandline
Then go to Start > Run and type: C:\ProcessList.txt
press Ok to view the details of all the processes.
Anytime you come across a suspicious file which you cannot find any information, the file has a legitimate name but is not located where it is supposed to be, or you want a second opinion, submit it to jotti's virusscan
. In the "File to upload & scan
" box, browse to the location of the suspicious file and submit (upload) it for scanning/analysis.
Post back with the results of the file analysis.