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Computer virus vd;gJ gw;wp ePq;fs;
Nfs;tpg;gl;bUf;fyhk;> ,jid ehk; jkpopy; fpUkp epuy;fs; vd;W $WfpNwhk;. ,j;jifa
fpUkpepuy;fSk; ehk; fzpdpapy; gad;gLj;Jk; kw;w epuy;fs; (Programs)
Nghd;witNa. mg;gb ,Uf;f ,jid Vd; ehk; fpUkp epuy;fs; vd;W nrhy;yNtz;Lk;?...
rpy epuy;fs; mopTg;gzpf;fhf vOjg;gLfpd;wd> vg;gb fpUkpfs;
ekJ clypy; GFe;jhy; mJ ekJ clYf;F cghijfis tpistpf;fpwNjh mJNghy ,j;jifa
mopTg;gzpf;fhf vOjg;gl;l epuy;fSk; ekJ fzpdpf;Fs; GFe;jhy; mjw;Fg; gy cghijfis
tpistpf;fpwJ> ,q;F fzpdpf;F cghijfs; vd;W ehd; $WtJ fzpdpapy; cs;s juTfis>
nkd;nghUs;fis mopg;gJ> mjpfkhd ,lj;ij epidtfq;fspy; Mf;fpukpg;G nra;J
mjd;%ykhf fzpdpapd; nra;ghl;L Ntfj;ij Fiwg;gJ> ehk; fzpdpapy; Ntiy
nra;Ak;NghJ gy tpjkhd njhe;juTfisr; nra;tJ vd;W gl;bay; ePSk;....
,j;jifa epuy;fis ehk; fpUkp epuy;fs; vd;W $Wtjw;F gy fhuzq;fs;
cs;sd mitahtJ.
1. ,e;j epuy;fs; vg;gb fpUkp xU fpUkpapypUe;J gythfg;
gy;fpg;ngUFfpwNjh mJNghy gy;fpg;ngUfty;yit. xU fpUkp epuy; jhdhfNt
jd;idg;Nghd;w fpUkpepuiy cUthf;fty;yJ ,jid Mq;fpyj;jpy;
Self
Replication vd;W nrhy;tJz;L.
2. vg;gb fpUkpfs; VjhtJ Clfq;fisg; gad;gLj;jp guTfpd;wdNth>
mJNghy ,j;jifa epuy;fSk; fzpdpapd; gy Clfq;fspd; topahf xU fzpdpapy; ,Ue;J
kw;nwhd;Wf;F guTfpwJ.
vLj;Jf;fhl;lhf nefpo;tl;Lf;fs;
(Floppy
disk) kw;Wk; tiyaikg;Gfspd; %yk; Nfhg;Gfis xU
fzpdpapypUe;J NtW fzpdpf;F khw;Wk; NghJ mjd;topNa ,j;jifa fpUkpepuy;fSk; me;j
fzpdpf;F gutptpLfpd;wd mq;fpUe;J mLj;j fzpdp vd;W mjDila guty; ele;Jnfhz;Nl ,Uf;Fk;.
3. kdpj clypy; fpUkp GFe;jJk; mJ mjDila Fwpfis ekf;F
czu;j;jp ehk; Neha;tha;g;gl;Ls;sij cWjpnra;ANkh mJNghy ,e;j fpUkp epuy;fSk;
ekJ fzpdpapy; GFe;jTld; mJ jd; nra;aNtz;ba mopTg;gzpfisAk;> njhe;juTfisAk;
je;J mjDila ,Ug;ig ekf;F czh;j;Jk;. ,jid Mq;fpyj;jpy;
Symptoms
of Virus Attack vd;W $WtJ cz;L.
4. ,j;jifa fpUkpfs; ekJ clypy; GFe;Jtpl;lij mwpe;Jk; ehk;
mjid ekJ cliytpl;L ntspNaw;w eltbf;if vLf;fhtpl;lhy; vg;gb Neha; Kw;wp ehk;
rhFk; epiyf;F nry;YfpNwhNkh mJNghy fpUkpepuy;fis mg;gbNa njhlutpl;lhy; ekJ
fzpdpapy; cs;s Kf;fpa jfty;fs; kw;Wk; nkd;nghUs;fs; Mfpadtw;iw ehk; ,of;f>
(caph; Ngha;tpLk;) ntWk; fzpdp kl;Lk; jhd; kpQ;Rk;.
,j;jifa fpUkp epuy;fs; Muk;gj;jpy; xU tpisahl;Lf;fhf
nkd;nghUs; nghwpahsh;fshy; vOjg;gl;ld. mth;fs; tiyaikg;gpy; cs;s jk;Kila ez;ghpd;
epuy;fis mopg;jw;Fk;> tpishahl;lhf mth;fisj; njhe;juT nra;J kfpo;tjw;FNk
vOjg;gl;ld ,j;jifa msTf;F mit tsh;r;rpaile;J fzpdp cyifNa vg;nghOJk;
mtjpf;Fs;shfptUk; vd;W mth;fs; me;jNeuj;jpy; epidj;jpUf;ftpy;iy!
Muk;gfhyj;jpy; te;j fpUkpepuy;fs; mjpfk; Mgj;jhditfshf ,y;iy
mitfs; ek;kplk; tpisahbtpl;L kiwe;JNgha;tpLk;. N[hrp vd;Dk; fpUkp epuy; ekJ
fzpdpapy; GFe;jhy;> mJ vg;NghjhtJ ehk; gpw Ntiyahf ,Uf;Fk; NghJ jpiuapy;
Njhd;wp vdf;F gpwe;jehs; tho;j;Jr;nrhy; vd;W fl;lisapLk; mJ $wpathW ePq;fSk;
"Happy
Birthday Josi" vd;W vOjpdhy; gpd;dh; kiwe;JtpLk;.
,j;jifa fpUkp epuy;fs; ekJ fzpdpf;Fk; mjpy; cs;s nkd;nghUs;fSf;Fk; vg;nghOJk;
jPq;F tpistpg;git my;y.
Mdhy; rpy fpUkpepuy;fs; kpfTk; Mgj;jhdit ekJ
Hard
disk INa nkhj;jkhf mopj;JtpLk; mj;NjhL ekJ nkhj;j
jfty;fSk;> nkd;nghUs;fSk; mope;JtpLk;. ,J ngupa epWtdq;fisg; nghWj;jtiuapy;
kpfg;ngupa ,og;ghf ,Uf;Fk; ekJ jdpf;fzpdpiag; nghWj;jtiuapy; ehk; kpfTk;
tpiykjpf;f Kbahj jfty;fs; vjidAk; mjpfk; fzpdpapy; itj;jpUf;fg;NghtJ,y;iy - nkd;nghUs; mope;JNgha;tpl;lhYk; kPz;Lk; ehk; mtw;iw
Vw;wpf;nfhs;yhk; mJ rpuKk; ,y;iy.
vj;jifa tifapy; ,e;j fpUkp epuy;fs; nray;gLfpd;wd?
,j;jifa fpUkpepuy;fis vOJk; ty;Ydh;fs; ve;j tpjkhd Kiwfspy;
fzpdpia me;epuy; jhf;fNtz;Lk; vd;W mjpy; vOjpAs;shh;fNsh mjd;gb me;j epuy;fs;
nray;gLk; vLj;Jf;fhl;lhf ehd; xU fpUkpepuiy vOJfpNwd;. mjpy;< me;j epuy;
Nfhg;Gf;fis gpujp vLf;Fk;nghOJ mJ fzpdpapy; ,Ue;J nefpo;jl;Lf;Fk;> mjpypUe;J
fzpdpf;Fk; nry;tjw;fhf fl;lisfis mikf;fpNwd;. mJkl;Lky;yhJ me;epuy;> fzpdp
tpidf;fyid jdJ epidtfj;jpy; Vw;wpf;nfhz;L me;j fzpdpapd; Njjpia ftdpj;JtUkhWk;
fl;lisfis mikf;fpNwd;. mJkl;lky;yhJ me;epuy;> fzpdp tpidf;fyid jdJ
epidtfj;jpy; Vw;wpaTld nray;glL mjhtJ jd; ftdpj;JtUkhWk; fl;lisfis mikf;fpNwd;.
mt;thW fzpdpapd; Njjpiaf;ftdpjJ tUk; mf;fpUkpepuy; Nk khjk; 5 Mk; Njjp fzpdpapd;
Njjpahf tUk; Neuj;jpy; mjpy; cs;s jfty;fis
(format)
nkhj;jkhf mopf;Fk; fl;lisiaf; nfhLf;fpNwd;.
,Jjhd; xU fpUkpepuy; nra;Ak; Ntiy. ,q;F ehd; fzpdpapd; Njjpia
ftdpj;J mjpy; ehd; nfhLf;Fk; Njjp te;jhy; mJ jdJ Ntiyiar; nra;af;
fl;lisapl;bUg;gJ Nghy gy ty;Ydh;fs; gytpjkhf fl;lisapLfpd;wdh;. ,j;jifa
fpUkpepuy;fs; mij vOJk; ty;Ydiug;nghWj;J NtW NtW tpjkhf mikfpd;wd> ntt;NtW
topfspy; nray;gLfpd;wd.
,j;jifa fpUkpepuy;fis ehk; nghJthf ,uz;L tifahfg;gpupf;fpNwhk;.
mit>
1.
(File Virus)
Nfhg;Gfisj;jhf;Fk; fpUkpfs;
2.
(Boot Sector)
kw;Wk; Partition Table
fpUkpfs;
,tw;wpy; Nfhg;Gfisj;jhf;Fk; fpUkpfs;> epuy;fisAk; jfty;
Nfhg;GfisAk; jhf;fp mopf;fpd;wd. ,d;Dk; ekJ fzpdpapy; gad;gLj;Jk; nefpo;tl;L
(floppy)
kw;Wk; tz;jl;L (Hard Disk)
Nghd;wtw;wpy; ehk; gjpe;Jitj;Js;s Nfhg;Gfspd; rupahd Kftup> kw;Wk; me;j hard
disk vj;jidahfg; gpupf;fg;gl;Ls;sJ me;j xt;nthU
gFjpf;Fk; vt;tsT nfhs;ssT Nghd;w jfty;fs; ,e;j Boot
Sector kw;Wk; Partition
table Nghd;wtw;wpy; cs;sd. ,itfisf; fpUkp epuy;fs;
jhf;Ftjhy; ehk; me;j hard disk
,y; cs;s nkhj;j Nrkpg;GfisAk; ,oe;JtpLNthk;.
jw;fhyj;jpy; gy Gjpa tiff;fpUkp epuy;fs; guTfpd;wd. mit
Nkw;$wpa tifapy; nray;gLtNjhL> ,izaj;jpd; thapyhf
Credit
Card Numbersfs; kw;Wk; flTnrhw;fs; (Passwords)
Nghd;wtw;iw fth;e;J nry;tjw;Fk; vOjg;gLfpd;wd.
xUtif fpUkpepuy;fis ehk; ~~j;Nuhrhd; Fjpiufs;|| vd;W $WfpNwhk;
,it> fpUkpepuy;fis xt;nthUfzpdpf;Fk; nfhz;L nry;Yk; Ntiyiar; nra;fpd;wd. ,jpy;
vLj;Jr;nry;yg;gLk; fpUkpepuy;fs; me;je;j fzpdpfspy; jq;fp mth; mf;fzpdpapy;
nra;Ak; Ntiyfisf; ftdpj;JtUfpd;wd mth; vg;NghjhtJ
Credit
cafrd Number fisj;jUk;NghJ mtw;iwf;
Fwpg;ngLj;Jf;nfhs;fpd;wd. rpy rkaq;fspy; ,izatq;fpaj;jpy; gad;gLj;Jk;
flTr;rPl;LfisAk; vLj;Jitj;Jf;nfhs;fpd;wd. gpd;dh; mitfisj; jdJ v[khdDf;F (Owner
of that virus) ,izaj;jpd; thapyhf mDg;gp tpLfpd;wd.
fpUkp epuy;fis ekJ fzpdpapy; Eise;J tplhky; jLg;gJ vg;gb?
rpy Kd;ndr;rupf;if eltbf;iffis vLg;gJ mtrpak;. mitfshtd>
1. gpwuplkpUe;J thq;fpg;gad;gLj;Jk;
Floppy
disk, CD Nghd;witfs; Kiwahf Nrhjpj;j gpd;dNu
cgNahfpf;fNtz;Lk;. (Kbe;j msTf;F mitfisj;jtph;f;f Ntz;Lk;.)
2. Ntz;lhj tpisahl;L nkd;fyd;fis
(Software)
,ytrkhff; fpilf;fpwNj vd;W ,izaj;jpy; ,Ue;J ,wf;fpf;nfhs;tNjh my;yJ
ez;gh;fsplk; ,Ue;J thq;fp cgNahfpg;gNjh $lhJ.
3. Kbe;j msTf;F fzpdpia mbf;fb fpUkpr;Nrhjpg;Gf;F
cl;gLj;jNtz;Lk;.
4. kpd; mQ;rypy; tUk; ,izg;Gfis mDg;gpath; jkf;F Ntz;batuh
,y;yhj gl;rj;jpy; ftdKld;ifahs Ntz;Lk;. ,itfs; ngUk;ghYk; fpUkp
epuy;fisj;jhq;fp tug;gad;gLj;jg;gLfpd;wd.
NkYk; ,j;jifa fpUkpepuy;fis mopg;gjw;F my;yJ jil nra;tjw;F vd;W fpUkp
mopg;ghd;fs; fpilf;fpd;wd. ,e;j fpUkp mopg;ghd;fis ehk; ekJ fzpdpapy; gjpe;J
itj;Jf;nfhz;L mtw;iw gad;gLj;jpf;nfhs;syhk;. MdhYk; ,q;F gy
tpraq;fis ePq;fs; kdjpy; nfhs;sNtz;Lk;. mitfshtd>
vy;yh fpUkpepuy;fisAk; vy;yh fpUkp mopg;ghd;fSk;
(Antivirus
Programs) mopj;JtpLtjpy;iy. fhuzk; Vw;fdNt te;j xU
fpUkp epuYf;Fj;jhd; mij mopf;ff;$ba epuy;fis vOjKbAk;. ,d;W Gjpjhf tUk;
fpUkpepuy;fSf;F ehisjhd;kUe;J fz;Lgpbf;f KbAk;. mjw;F fhuzk; xt;nthU fpUkp
vOj;jhsh;fSk; GJg;GJtpjkhd Kiwfisf; filg;gpbg;gjhy; jhd; me;jKiwfis ed;F
Muha;e;J me;j Gjpa fpUkp vt;thW nray;gLfpwJ vd;gjid gFj;jha;e;j jhd; mjw;F
mopg;ghd;fs; (vaccines)
vOjg;gLfpd;wd.
Mjyhy; New;iwa fpUkp mopg;ghd;;fs; ehisa fpUkpfis
mopf;fg;Nghtjpy;iy. vdNt mbf;fb cq;fsJ fpUkp mopg;ghd; nkd;fyd;fis
GJg;gpj;Jf;nfhz;bUf;f Ntz;Lk;.
,d;DnkhU tprak; ,e;j fpUkp mopg;ghd; nkd;fyd;fis vOJgth;fs;
gy fpUkpepuy;fis GjpJGjpjhf cyttpLfpwhh;fs;. mjd;gpd; mjw;fhd mopg;ghid
jahh;nr;aJ tpw;gid nra;JtpLfpwhh;fs;. me;j rkaj;jpy; NtW Gjpa fpUkpfis ntspNa
mDg;Gfpd;wdh;.
xU fpUkpia vOjpatUf;F mJ vt;thW nray;gLk; vd;gJ njupe;JtpLtjhy; mjid mopf;f
vopjpy; mopg;gid cUthf;f KbAk;. mNjrkaj;jpy; xU Gjpa fpUkpepuiy vLj;Jf;nfhz;L mJ
vt;thnwy;yhk; jhf;FfpwJ> guTfpwJ vd;gij ed;F Muha;e;J mjid mopg;gjw;F>
jLg;gjw;Fk; epuy;fis cUthf;FtJ fbdkhd gzp.
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