Fayrusyada Polymorphic - maxay tahay iyo sida ay wax uga qabtaan?

Waxaan dhamaanteen maqlay oo ku saabsan khataraha software xaasidnimo ah, gaar ahaan shabakadda. barnaamijka gaarka ah ee ilaalinta hanjabaadaha kala duwan yihiin lacag fiican, laakiin waa ay jiraan wax kharash kuwanu? Ka fikir noocyada ugu badan ee warbaahinta cudurka, gaar ahaan ugu khatarta badan oo iyaga ka mid - fayrus polymorphic.

Micnaha ay cudurka

By eegtahay daawo, nidaamyada computer loo tixgeliyaa sida "noolaha" oo kala duwan in ay awoodaan in ay qaado ee "infection" intii lagu jiray is dhexgalka la deegaanka digital: internetka ama iyadoo la adeegsanayo warbaahinta saari tijaabinaya. Sidaa awgeed magaca inta badan barnaamijyada xaasidnimo ah - fayrusyada. Bilowga muuqaalka fayrusyada polymorphic ahaayeen xiiso for khubaro, wax baaritaan ah oo awoodooda, iyo sidoo kale baaritaanka nidaamyada qaar ka mid ah ilaalinta nidaamka computer iyo khayraadka network. Haddaba Anonymous ayaa ka pampering dhaqaaqay in bayaan falal dambiyeedyo, iyo dhammaan sababtoo ah adduunka ee nidaamka bangiyada digital in bixiyaan helitaanka e-boorsooyinka ka shiidaa meel kasta oo dunida ah. Macluumaadka laftiisa, kaas oo weliba haatan u ugaadhsadaan qorayaasha virus, haatan waa ka la heli karo, iyadoo ay qiimaha kor u kacay in tobanaan iyo boqolaal jeer marka la barbar dhigo wakhtiyada pre-digital.

Description iyo taariikhda dhicitaanka

fayrusyada Polymorphic, sida magacaba ka muuqata, waa inay awoodaan inay baddalaan code gaar ah marka la samaynayo aad nuqul. Sayidka, virus cidla ah oo aan la qeexi karaa wakiilada fayruska waayo, mid maaskaro oo waxay heleen oo dhan, waayo, loop a fudud. waxaa virus The first to badasho technology code gaar ah dib u sii daayay sanadkii 1990 under jirjirroolaha magaca. horumarinta halista ah ee technology qoraal virus in yar ka dib la dhalashada of matoorrada code polymorphic, mid ka mid ah oo la odhan jiray garab Polymorphic Engine loo qaybiyey tilmaamaha faahfaahsan ee archives of BBS ah. Iyada oo dhererka waqtiga technology polymorphism ayaa sameeyay wax kasta oo isbedel weyn, laakiin waxaa jira siyaabo kale oo ay u qariyaan falalka arxandarada ah.

faafidda fayrusyada

Waxa intaa dheer in caan ka dhex emaillada iyo qorayaasha virus nidaamka e-mail, fayrusyada mutant heli karaa galay aad computer oo ay weheliyaan faylasha soo bixi, oo isticmaalaya khayraadka Internet cudurka via link gaar ah. Waayo, cudurka laga yaabaa in ay isticmaalaan tus ka qaba ee goobaha caanka ah. warbaahinta saari karo, sida caadiga ah overwrite shaqada, sidoo kale, waxa ay noqon karaan il of cudurka, sida ay ku jiri kara faylasha cudurka in user waa inay awoodaan inay laftiisa ay maamusho. codsiyada kala duwan xidhaba ku meel gaar ah gab software anti-virus waa in ay signal a si user ah, ugu yaraan for a imtixaanka qoto dheer files eedeysanuhu. qaybinta Automatic ah fayraska waxaa suurto gal ah in kiiska ka mid ah ogaanshaha ifbaxay cillado nidaamyada ilaalinta fulintii software sida waxaa sida caadiga ah loogu talagalay nooc gaarka ah ee shabakadaha iyo nidaamyada hawlgalka. Popularization of software xafiiska ayaa sidoo kale soo jiitay ee weerarka soo qaaday, taasoo keentay in a macros cudurka gaarka ah. Barnaamijyada virus waxay leeyihiin khasaare halis ah, ay "xidhan" nooca faylka, Dhaqale-fayrusyada ka Word-file aan la falgala isbiriidhshiit Excel ah.

noocyada polymorphism

Qaab dhismeedka Polymorphic kala qaybsanyihiin ee kakanaanta ee algorithms loo isticmaalo by kooxo dhowr ah. Oligomorfnye - mid aad u fudud - isticmaali joogto ah si sir aad code gaar ah, sidaas darteed xitaa antivirus fudud waa awoodaa inuu xisaabiyo iyo iyaga uga takhalusi lahaayeen. Tan waxa la codes la a tilmaamo dhawr sirta ah iyo isticmaalka code "madhan", si loo ogaado barnaamijka ilaalinta virus sida waa in ay awoodaan in ay haadiyo iyada oo kooxda qashinka.

Fayrusyada codsanaya in la beddelo qaab-dhismeedkoooda gaar ah oo aan khasaaro ah oo ka shaqeynayaan, iyo sidoo kale farsamo kale cryptographic ogaaday heerka hoose, horay wakiil ah xujo adag ogaanshaha fayruska. fayrusyada polymorphic mid aan bogsan karin, oo ka kooban blocks software geli karto qayb ka mid ah xeerka meelo kala duwan file cudurka. Dhab ahaantii, virus tani ma aha lagama maarmaan in la isticmaalo code "madhan", taas oo waxaa loo isticmaalaa sida code eedeysanuhu of files qaba cudurka. Nasiib wanaag dadka isticmaala iyo horumarinta software anti-virus qoraal fayrusyada, kuwaas oo u baahan aqoon dhab ah oo ururiyaha oo waa la heli karaa oo kaliya in ay barnaamijyo heer aad u sarreeya.

Yoolalka, ujeeddooyinka iyo mabda 'hawlgalka

code Viral oo qayb ka ah meeshii dixirigoodu uusan shabakad keeni karaan khatar weyn, sababtoo ah, marka lagu daro xawaare of faafinta, waxay bixisaa macluumaadka ku saabsan waxyeellada iyo faddarayn of files nidaamka. polymorph Head-virus ku kooban of dirxi ama sal u ah ay code waxay sahlaysaa in la garab muuqaalada ammaanka ee aad computer ah. in fayrusyada gool laga yaabaa in aad u kala duwan, ka xatooyo fudud si ay u baabba'aan dhameystiran xogta diiwaan on warbaahinta kaydinta joogtada ah, iyo sidoo kale carqalad ah ee nidaamyada hawlgalka iyo complete lagu qasayo. Barnaamijyada virus Qaar ka mid ah waxay awoodaan si ay u gudbiyaan gacanta ku weeraray computer ah in la furo ama keebka qarsoon Ramm prog kale, xirmaan khayraadka network ama lacag kala iibsiga file fudud. Qaar kale waxay awoodaan in ay muuqan "ku noolaan" ah ee xasuusta iyo in la xakameeyo hanaanka hadda socda codsiyada in search for files ku haboon inay qaadsiiyaan ama si ay u abuuraan faragelinta la user ah.

hababka ilaalinta

Ku xiridda anti-virus waa waajib waayo computer kasta oo ku xiran network, sida nidaamka qalliinka ma naftaada ka furin badbaadin karaa, laakiin ugu fudud. warsiinta The waqtigii of database iyo iskaanka nidaamka files, marka lagu daro nidaamka la socodka joogtada ah, sidoo kale kaa caawin doonaa in la aqoonsado cudurka iyo baabi'iyo isha. Marka la isticmaalayo kumbiyuutarrada ka weyn ama gaabis maanta noqon kartaa fududahay in la rakibo software antivirus isticmaala daruur of database virus kaydinta. doorashada ee barnaamijyada sida waa mid aad u balaadhan, oo ay dhammaan wax ku ool ah si ay u kala duwan yihiin, iyada oo qiimaha software anti-virus ma aha had iyo jeer ku hadla ee uu isku halaynta sare. oo lagu daray A hubo bixiyo barnaamijyada - joogitaanka ah taageero macaamiisha firfircoon iyo updates badan ee database-virus, si kastaba ha ahaatee, qaar ka mid ah analogues free waqtiga ayaa sidoo kale ka jawaabidda ah ee saxiixyada virus cusub ee shabakadda.