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SLAX ..A Portable Operating system

hi friends,
u may have heard about live CDs. Live CD is a essential tool for system admins, also useful for others, When ever u have no OS or corrupted OS u can boot with a live CD and diagnose all ur hardware problems. In cybercafes also u can use these live Cds to get rid of viruses and software unavailability/incompatibility.

So, try the Live OS Slax a Slackware derived. this is a user friendly linux with KDE desktop manager. Gnome desktop also available as an extra module.

• Requires less RAM(256 min)
  
• Only 200 MB space required (Basic features)
  
• Can be installed on Pendrive or Harddisk
• Boot from CD in 1.5 Minute (intelP4)
• Boot from Harddisk 1 Minute(Max)
• New modules everyday

Xtronix

Kill unecessary processes

In winXP there are some way with which u can check for any stray processes and kill them.

1. Right click on the taskbar, click on task manager....then click on processes tab..

if u hav no acess to it(damaged by virus) u can try task killer from the link below
http://task-killer.smartcode.com/info.html

2. Check for the processes. if it is not in the list below then check in google about it. just type the process name and search.

taskmgr from ur current user
alg from Local Services
hkmcd from ur current user
igfxtray from ur current user
spoolsv from ur current user

System from SYSTEM
MDM from SYSTEM
System Idle Process from system
SVCHOST (MULTIPLE) from NETWORK SERVICE AND SYSTEM
SERVICES from SYSTEM
LSASS from SYSTEM
SMSS from SYSTEM
CSRSS from system....and more 4/5 processes

but the viruses generaly run from the username-=ur current username(the login name)

they generaly copy the name of system processes.

so u should regularly check for suspicious procesess and kill delete them. and if u can then search whether it is generated by any other virus residing in ur harddisk.

Better than antivirus programmes

Here is a software which saves ur PC from virus infections from pendrive, harddisk and other localfolders.

1. Download

Download & description Page http://www.beyondlogic.org/solutions/trust-no-exe/trust-no-exe.htm

Download link http://www.beyondlogic.org/solutions/trust-no-exe/trustnoexev304.zip

2. Extract

extract with winzip/winrar to ur C:/Program files/

3. Run the installer

4. Goto Control Panel->trustno

5. Add ur executable folders(where ur programmes not virus resides) any where on the harddisk, but u should better add only "program files" and "windows". and install everything into program files.

6. Insert ur pendrive to ur PC and then again open the trustno in controlpanel. and add the pendrive to deny list, similarly u can add the cd drive also.

7. Now u r safe from pendrive/cd resident viruses.

8. Anything u hav to install ,then u first copy the setup to program files then install and delete the setup. but u should use ony trusted softwares.

Generally viruses come with cracked softwares(illegal copy from anonymous sites), u should use softwares only from trusted sources or sites, u should not rely fully on any antivirus

write if u hav any problem with these mail me asimkumar2222@gmail.com

HOW TO SET THE FOLDER OPTION

this is how ur system drive(may be c://) will appear i.e. system files will apear blurred.
N.B. Don't delete any system files (NTDETECT.COM, MSDOS.SYS, PAGEFILE.SYS, MSDOS.SYS, NTDLR, IO.SYS, BOOT.INI, AUTOEXEC.BAT). Except these there should not any file in the category system file. if any found it may be a virus, but flash drives does contain any file like this,so delete the file as u see.(don't double click on it anyway).

u shouldn't double click/right click on any drive (local drives also). To open a drive u should go from the address bar or explore mode as shown below.

analysis of the viruses

i do'nt know about the generic classifications of the viruses , as a user i have analysed the activities of the viruses ..
viruses spread through

1. webpages containing scripts.
2. removable drives(CD-R,CD-RW,Floppy Drives,Flash Drives)
3. downloaded softwares from unknown sites

Webpages contain javascripts,vbscripts which change the computer settings and run the virus programmes. But every time we come across a script page the browser(IE,opera,mozilla..) warns us. This scripts can be permanently made off in the browser settings.

Removable drives come with a autoplay/autorun option, that helps the virus writers. if u put a text file autorun.inf it will run the programme written on the file. when the user double clicks the drive(also possible in local drives ..C://) it runs specified programme(here it is virus). There are some scrpits which runs virus on right click on drive. The viruses once started

• Link themselves with the system files
• Sheduled to start every time a user log in.
• They a leave copies in system folders
• Change the system registry
• Change the folder option(Disable show hiden file,system file,file Extension name)(Nonrecoverable)
• Lock the Ctrl+Alt+Dlt option (Not in all viruses)
• Lock the taskmanager (Not in all)
• Lock the RegistryEdit (Not in all)
• Lock the Command Prompt (Not in all)

Softwares from some unknown sites contain hidden viruses. when the user double clicks on it uncopmress and then run the programmes including the virus. it does its work right but hiddenly it makes way for the virus.

Prevention

• Allow scripts from trusted sites
• Do'nt double click or rightclick on any drive (local/removable)
• disable windows scripthost(wscript.exe)(just replace with any .exe file with same name otherwise it will be reinstalled automatically)
• show hidden files,system files, file extension in folder option..