Ukuhlasela kwe-cyber defii-nible njengomsebenzi ononya omelene nesistimu, ithuluzi, uhlelo lokusebenza noma into enengxenye yekhompyutha. Kungumsebenzi ohlose ukuthola inzuzo yomhlaseli ngezindleko zalowo ohlaselwe. Namuhla sibheka ukuhlasela kweDenial-of-Service
Kunezinhlobo ezahlukene zokuhlaselwa ku-inthanethi, ezihluka ngokuya ngezinhloso okufanele zizuzwe kanye nezimo zobuchwepheshe nezimo:
Phakathi kokuhlaselwa okuvame kakhulu, ezikhathini zamuva, kukhona ukuhlaselwa kwezinhloso zezomnotho nokuhlaselwa kokugeleza kwedatha. Ngemva kokuhlaziya izinhlobo ezahlukene zokuhlaselwa emasontweni asanda kwedlula, namuhla sibonaUkuhlasela kwe-Denial-of-Service.
Labo abenza ukuhlasela ku-inthanethi, bebodwa noma ngamaqembu, bayabizwa Hacker
Ukuhlasela kwe-Denial-of-Service kuhloswe ukuthatha izinsiza zesistimu ize iphele, ukuze uhlelo ngokwalo lungakwazi ukuphendula izicelo zesevisi. Ukuhlasela kwe-DoS nakho kuwukuhlasela kwezinsiza zesistimu, futhi kuqalwa inombolo enkulu yeminye imishini yokusingatha etheleleke ngesofthiwe enonya elawulwa umhlaseli.
Ngokungafani nokuhlasela okudizayinelwe ukuvumela umhlaseli ukuthi azuze noma akhulise ukufinyelela, ukunqatshelwa kwesevisi akunikezi izinzuzo eziqondile kubahlaseli. Umphumela otholakele uwukwenza isevisi ingasebenziseki. Ngakho-ke, uma impahla ehlaselwe ingeyombangi wezohwebo, inzuzo yomhlaseli ingokoqobo.
Enye injongo yokuhlasela kwe-DoS kungaba ukuthatha isistimu ingaxhunyiwe ku-inthanethi ukuze kuqaliswe olunye uhlobo lokuhlasela.
ibangela izinkambu ze-offset zobude nokwehlukana kumaphakethe alandelanayo we-Internet Protocol (IP) ukuthi adlulene kumsingathi ohlaselwe; isistimu ehlaselwe izama ukwakha kabusha amaphakheji kunqubo, kodwa yehluleka. Isistimu eqondiwe iyadideka futhi iphahlazeke. Uma zingekho iziqeshana ezitholakalayo zokuvikela kulokhu kuhlasela kwe-DoS, khubaza i-SMBv2 futhi uvimbele izimbobo 139 kanye ne-445;
kubandakanya ukusebenzisa i-IP spoofing kanye ne-ICMP ukuze kugcwaliswe inethiwekhi eqondiwe ngethrafikhi. Le ndlela yokuhlasela isebenzisa izicelo ze-ICMP echo ezihloselwe ukusakaza amakheli e-IP. Lezi zicelo ze-ICMP zivela ekhelini "lesisulu" elingcolile. Isibonelo, uma ikheli lesisulu lingu-10.0.0.10, umhlaseli kuzomele ahlasele isicelo se-ICMP echo kusuka ku-10.0.0.10 ukuze asakaze ikheli 10.255.255.255. Lesi sicelo sizoya kuwo wonke ama-IP ebangeni, nazo zonke izimpendulo ezibuyela ku-10.0.0.10, ezivala inethiwekhi. Le nqubo iyaphinda, futhi ingenziwa ngokuzenzakalelayo ukuze ikhiqize ukuminyana kwenethiwekhi okukhulu.
Ukuze uvikele amadivayisi akho kulokhu kuhlasela, udinga ukukhubaza ukusakaza okuqondiswe ku-IP kumarutha. Lokhu kuzovimbela isicelo sokusakaza i-ICMP echo ukuthi sifinyelele kumadivayisi enethiwekhi. Enye inketho kungaba ukulungisa izindawo zokugcina ukuze zibavimbele ekuphenduleni amaphakethe e-ICMP avela emakhelini okusakaza;
isebenzisa amaphakethe e-IP uku-ping isistimu eqondiwe enosayizi we-IP omkhulu kunomkhawulo wamabhayithi angu-65.535. Amaphakethe e-IP alo sayizi awavunyelwe, ngakho umhlaseli uhlukanisa iphakethe le-IP. Uma isistimu eqondiwe isihlanganisa kabusha iphakheji, ukuchichima kwebhafa nokunye ukuphahlazeka kungenzeka.
I-Ping of death attack ingavinjwa ngokusebenzisa i-firewall elawula ubukhulu bobukhulu bamaphakethe e-IP ahlukanisiwe;
kulesi simo umhlaseli usizakala ngokusetshenziswa kwesikhala sebhafa phakathi neseshini yokuqaliswa kwe-Transmission Control Protocol (TCP) ukuxhawula isandla. Idivayisi yomhlaseli igcwalisa ulayini omncane ongaphakathi kwenqubo yesistimu eqondiwe ngezicelo zokuxhuma, kodwa ayiphenduli lapho isistimu eqondiwe iphendula lezo zicelo. Lokhu kubangela ukuthi isistimu eqondiwe iphele ngesikhathi ilinde impendulo evela kudivayisi yomhlaseli, okubangela ukuthi isistimu ilenge noma ingasebenziseki uma ulayini woxhumano usugcwele.
Kunezinyathelo ezithile zokulwa nokuhlasela kwezikhukhula ze-TCP SYN:
izigidi zamasistimu atheleleke ngohlelo olungayilungele ikhompuyutha alawulwa abaduni, asetshenziselwa ukuhlasela i-DoS. Lawa ma-bots noma amasistimu e-“zombie” asetshenziselwa ukuhlasela amasistimu okuqondiwe, ngokuvamile agcwalisa umkhawulokudonsa wesistimu eqondiwe namandla okucubungula. Lokhu kuhlasela kwe-DoS kunzima ukulandelela ngoba ama-botnet atholakala ezindaweni ezahlukene.
Ukuhlaselwa kwe-Botnet kungancishiswa ngoku:
Uma uhlaselwe futhi udinga ukubuyisela ukusebenza okuvamile, noma uma ufuna ukubona ngokucacile futhi uqonde kangcono, noma ufuna ukukuvimbela: sibhalele ku-rda@hrcsrl.it.
Kufanele nakanjani uthole isofthiwe ye-antivirus ephumelelayo nethembekile.
Uma isabelomali sakho siqinile, ungathola ama-antivirus amaningi mahhala ku-inthanethi.
Kubalulekile ukuthi ngaso sonke isikhathi sigcine isiphequluli esisisebenzisayo ukuhlola i-inthanethi sibuyekeziwe futhi mhlawumbe sifake ithuluzi lokuhlaziya elikwazi ukuhlola ubukhona bobungozi kukhodi yewebhusayithi.
Kuyinqubo eyisisekelo yokukala izinga lamanje lokuphepha lenkampani yakho.
Ukwenza lokhu kuyadingeka ukufaka ithimba le-Cyber elilungiselelwe ngokwanele, elikwazi ukwenza ukuhlaziya isimo lapho inkampani izithola ikuso ngokuphathelene nokuphepha kwe-IT.
Ukuhlaziywa kungenziwa ngokuvumelanayo, ngenhlolokhono eyenziwa yi-Cyber Team noma
futhi i-asynchronous, ngokugcwalisa uhlu lwemibuzo ku-inthanethi.
Singakusiza, thintana nochwepheshe be-HRC srl ngokubhalela ku-rda@hrcsrl.it.
Ngaphezulu kuka-90% wokuhlaselwa kwama-hacker kuqala ngesenzo sabasebenzi.
Ukuqwashisa yisikhali sokuqala sokulwa nengozi yohleloxhumano ngesiqoqelalwazi.
Yile ndlela esenza ngayo "Ukuqwashisa", singakusiza, thintana nochwepheshe be-HRC srl ngokubhalela ku-rda@hrcsrl.it.
Idatha yebhizinisi inenani elikhulu kuzigebengu ze-inthanethi, yingakho izindawo zokugcina namaseva kuhloswe ngazo. Kunzima ngezixazululo zendabuko zokuphepha ukumelana nezinsongo ezivelayo. Izigebengu ze-Cybercriminal zidlula izivikeli ze-antivirus, zisizakala ngokungakwazi kwezinkampani ze-IT ukuqapha nokuphatha imicimbi yezokuphepha ubusuku nemini.
Nge-MDR yethu singakusiza, thintana nochwepheshe be-HRC srl ngokubhalela ku-rda@hrcsrl.it.
I-MDR iwuhlelo oluhlakaniphile oluqapha ithrafikhi yenethiwekhi futhi lenze ukuhlaziya ukuziphatha
uhlelo lokusebenza, ukuhlonza umsebenzi osolisayo nongafuneki.
Lolu lwazi ludluliselwa ku-SOC (Isikhungo Sokusebenza Kwezokuphepha), ilabhorethri ephethwe
abahlaziyi be-cybersecurity, abaphethe izitifiketi eziyinhloko ze-cybersecurity.
Esimeni lapho kukhona okungahambi kahle, i-SOC, enesevisi ephethwe 24/7, ingangenela emazingeni ahlukene obunzima, kusukela ekuthumeleni i-imeyili eyisixwayiso kuye ekuhlukaniseni iklayenti kunethiwekhi.
Lokhu kuzosiza ukuvimba izinsongo ezingaba khona kuhlumela futhi kugweme umonakalo ongalungiseki.
Iwebhu emnyama isho okuqukethwe kwe-World Wide Web kuma-darknets angafinyelelwa nge-inthanethi ngesofthiwe ethile, ukucupha kanye nokufinyelela.
Ngokugada kwethu Iwebhu Yezokuphepha siyakwazi ukuvimbela futhi siqukathe ukuhlaselwa ku-inthanethi, kusukela ekuhlaziyweni kwesizinda senkampani (isb.: ilwebcreativo.it ) kanye namakheli e-imeyili angawodwana.
Xhumana nathi ngokubhalela ku-rda@hrcsrl.it, singalungiselela uhlelo lokulungisa ukuhlukanisa usongo, ukuvimbela ukusabalala kwalo, kanye defisithatha izinyathelo ezidingekayo zokulungisa. Isevisi inikezwa 24/XNUMX evela e-Italy
I-CyberDrive ingumphathi wefayela lefu onamazinga aphezulu okuphepha ngenxa yokubethela okuzimele kwawo wonke amafayela. Qinisekisa ukuvikeleka kwedatha yebhizinisi ngenkathi usebenza efwini futhi wabelana futhi uhlela amadokhumenti nabanye abasebenzisi. Uma uxhumano lulahlekile, ayikho idatha egcinwa ku-PC yomsebenzisi. I-CyberDrive ivimbela amafayela ukuthi alahleke ngenxa yokulimala kwengozi noma akhishelwe ukweba, kungaba okoqobo noma okwedijithali.
Isikhungo sedatha esincane kunazo zonke nesinamandla kakhulu se-in-a-box esinikeza amandla ekhompuyutha nesivikelo ekulimaleni ngokomzimba nokunengqondo. Idizayinelwe ukuphathwa kwedatha ezindaweni ezisemaphethelweni naserobo, izindawo zokudayisa, amahhovisi ochwepheshe, amahhovisi akude kanye namabhizinisi amancane lapho isikhala, izindleko kanye nokusetshenziswa kwamandla kubalulekile. Ayidingi izikhungo zedatha namakhabhinethi ama-rack. Ingabekwa kunoma yiluphi uhlobo lwendawo ngenxa yomthelela wobuhle obuhambisana nezindawo zokusebenza. «I-Cube» ibeka ubuchwepheshe besoftware yebhizinisi ensizeni yamabhizinisi amancane naphakathi nendawo.
Xhumana nathi ngokubhalela ku-rda@hrcsrl.it.
Ungase ube nentshisekelo kuMuntu wethu kokuthunyelwe okuPhakathi
Ercole Palmeri: I-Innovation iyalutha
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