{"id":6190,"date":"2021-10-20T16:29:16","date_gmt":"2021-10-20T13:29:16","guid":{"rendered":"https:\/\/www.one-it.ro\/blog\/?p=6190"},"modified":"2021-10-28T09:11:17","modified_gmt":"2021-10-28T06:11:17","slug":"atacurile-zero-day-au-atins-cifre-record-cum-le-poti-preveni-in-2021","status":"publish","type":"post","link":"https:\/\/www.one-it.ro\/blog\/atacurile-zero-day-au-atins-cifre-record-cum-le-poti-preveni-in-2021\/","title":{"rendered":"Atacurile \u201ezero-day\u201d au atins cifre record: cum le po\u021bi preveni \u00een 2021"},"content":{"rendered":"\n\n
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\n 5\/5 - (1 vote) <\/div>\n <\/div>\n

\"zero-day\"<\/h2>\n

\u201eZero-day attacks\u201d (\u201eatacurile de zero zile\u201d) sunt printre cele mai periculoase incidente de securitate care afecteaz\u0103 at\u00e2t utilizatorii casnici, c\u00e2t \u0219i mediile corporate. Deoarece 2021 a dobor\u00e2t recordul de atacuri de hacking zero-day, afl\u0103 mai jos cum le po\u021bi recunoa\u0219te \u0219i cum le po\u021bi preveni.<\/span><\/h2>\n

 <\/p>\n

\u00a0\u201eZero-day\u201d: vulnerabilit\u0103\u021bi, exploit-uri \u0219i atacuri critice<\/strong><\/span><\/h3>\n

\u201eZero-day\u201d este un termen larg care descrie vulnerabilit\u0103\u021bile de securitate descoperite recent, pe care hackerii le pot folosi pentru a ataca sistemele<\/strong>. Un atac zero-day este un atac cibernetic ce are loc atunci c\u00e2nd hackerii exploateaz\u0103 defectul \u00eenainte ca victima s\u0103 aib\u0103 \u0219ansa de a-l aborda. Asta \u00eenseamn\u0103 c\u0103 are \u201ezero zile\u201d pentru a remedia problema.<\/p>\n

Produc\u0103torii de solu\u021bii de securitate folosesc metode statistice \u0219i tehnici pe baz\u0103 de semn\u0103tur\u0103 sau de comportament pentru a detecta intruziunile care au vulnerabilit\u0103\u021bi de acest gen.<\/p>\n

? Vulnerabilit\u0103\u021bile zero-day (zero-day vulnerability)<\/strong> sunt acele vulnerabilit\u0103\u021bi de software sau hardware descoperite de atacatori \u00eenainte ca furnizorii s\u0103 devin\u0103 con\u0219tien\u021bi de acestea. Asta \u00eenseamn\u0103 c\u0103 nu exist\u0103 niciun patch pentru acestea, ceea ce face ca atacurile s\u0103 poat\u0103 fi duse la cap\u0103t f\u0103r\u0103 stres din partea atacatorilor.<\/p>\n

Uneori, hackerii \u201dwhite hat\u201d descoper\u0103 vulnerabilit\u0103\u021bi \u0219i ajut\u0103 dezvoltatorii de softuri\/hardware s\u0103 stabileasc\u0103 bug-ul \u0219i s\u0103 elibereze un patch necesar, care previne un atac zero-day.<\/p>\n

Patch-urile sunt extrem de importante deoarece acoper\u0103 \u201eg\u0103urile\u201d de securitate pe care nu le-a acoperit o actualizare software sau o desc\u0103rcare ini\u021bial\u0103 a acestuia.<\/p>\n

? Exploit-urile<\/strong> sunt acele metode pe care le folosesc hackerii pentru a ataca sistemele \u00een urma unei vulnerabilit\u0103\u021bi neidentificate anterior. Astfel, atacatorii vor avea acces la sistemele IT \u0219i vor putea injecta un program malware, spyware sau adware.<\/p>\n

? Atacurile 0-day<\/strong> sunt ac\u021biunile prin care se utilizeaz\u0103 exploit-urile pentru a provoca daune sau pentru a fura date dintr-un sistem afectat deja de o vulnerabilitate.<\/p>\n

 <\/p>\n

Cum func\u021bioneaz\u0103 atacurile zero-day<\/strong><\/span><\/h3>\n

Iat\u0103 care este clasicul \u0219ir de evenimente al unui atac zero-day, de la lansarea softului\/hardware-ului pe pia\u021b\u0103 \u0219i p\u00e2n\u0103 la rezolvarea problemei de securitate:<\/p>\n

\u27a1\ufe0f Software-ul sau hardware-ul este dezvoltat \u0219i lansat pe pia\u021b\u0103<\/strong> \u2013 acesta con\u021bine o vulnerabilitate nedetectat\u0103 de dezvoltatori.<\/p>\n

\u27a1\ufe0f Hackerii detecteaz\u0103 vulnerabilitatea<\/strong> \u2013 \u00eenainte ca dezvoltatorul s\u0103 o sesizeze sau \u00eenainte ca acesta s\u0103 lanseze un patch.<\/p>\n

\u27a1\ufe0f Atacatorii elibereaz\u0103 un malware<\/strong> pentru a exploata softul \u2013 atunci c\u00e2nd acea vulnerabilitate nu este \u00eenc\u0103 detectat\u0103 sau rezolvat\u0103 de c\u0103tre dezvoltator.<\/p>\n

\u27a1\ufe0f Detec\u021bie \u0219i patch-ing<\/strong> \u2013 dup\u0103 ce hackerii au lansat un exploit, fie ter\u021be persoane identific\u0103 furtul de date, fie dezvoltatorul \u00eel depisteaz\u0103 \u0219i creeaz\u0103 un patch de securitate.<\/p>\n

Atunci c\u00e2nd hackerii \u201dblack hat\u201d descoper\u0103 vulnerabilit\u0103\u021bi \u00een diverse softuri, nu ezit\u0103 s\u0103 atace sau s\u0103 o v\u00e2nd\u0103 altor persoane ori organiza\u021bii care caut\u0103 \u00een mod special poten\u021biale victime (uneori, vorbim de un simplu hacker sau de o grupare de infractori cibernetici \u00een ac\u021biune). Iar atunci c\u00e2nd nici dezvoltatorul \u0219i nici utilizatorii care folosesc acel soft nu cunosc elementul vulnerabil, afl\u0103 de acesta abia atunci c\u00e2nd atacul este deja lansat \u0219i a \u00eenceput s\u0103 provoace daune.<\/p>\n

Software-ul r\u0103m\u00e2ne vulnerabil la atac p\u00e2n\u0103 \u00een momentul \u00een care este lansat acel patch \u0219i pus \u00een aplicare, \u00eens\u0103 lucrul acesta poate dura c\u00e2teva zile, luni sau chiar ani, timp \u00een care consecin\u021bele pot fi dezastruoase. Aici intervin speciali\u0219tii \u0219i rapiditatea lor \u00een a g\u0103si solu\u021biile pentru a opri atacul \u0219i a minimiza pierderile suferite.<\/p>\n

 <\/p>\n

Cum previi atacurile zero-day<\/strong><\/span><\/h3>\n

Prin defini\u021bie, nu sunt disponibile patch-uri pentru atacurile zero-day. \u00cens\u0103, pentru c\u0103 preven\u021bia este arma num\u0103rul 1 \u00eempotriva acestor \u00eenfrico\u0219\u0103toare amenin\u021b\u0103ri cibernetice, exist\u0103 c\u00e2teva puncte pe care le po\u021bi bifa \u00een materie de securitate digital\u0103.<\/p>\n

1\ufe0f\u20e3 Monitorizeaz\u0103 datele vitale pe care le de\u021bii<\/strong> \u0219i stabile\u0219te politici de acces \u0219i privilegii pentru ca doar oamenii de \u00eencredere sau cei care trebuie s\u0103 manevreze acele date s\u0103 aib\u0103 acces la ele.<\/p>\n

2\ufe0f\u20e3 Actualizeaz\u0103-\u021bi constant sistemul de securitate<\/strong><\/p>\n

Un element care poate fi trecut cu vederea (cu u\u0219urin\u021b\u0103, din p\u0103cate) este antivirusul<\/strong><\/a> sau <\/strong>firewall-ul<\/strong><\/a>, care pot ajuta la detectarea activit\u0103\u021bilor suspecte (de ex.: instalarea unui malware sau ini\u021bierea unui atac de tip phishing atunci c\u00e2nd dai click pe linkuri suspecte<\/a><\/strong>) \u0219i chiar blocarea unui astfel de atac. Aici, un element crucial \u00eel reprezint\u0103 actualizarea constant\u0103 a antivirusului, care te poate uneori proteja mai devreme dec\u00e2t este disponibil un patch.<\/p>\n

3\ufe0f\u20e3 Creeaz\u0103 copii de rezerv\u0103 \u0219i implementeaz\u0103 o solu\u021bie de Disaster Recovery<\/strong><\/p>\n

Al doilea element crucial pentru orice scenariu de securitate: f\u0103 o copie de rezerv\u0103 sistemelor critice \u0219i stabile\u0219te planuri de recuperare \u0219i r\u0103spuns la incidente. Sunt recomandate solu\u021biile de Backup<\/strong><\/a> \u0219i Disaster Recovery<\/strong><\/a>, prin intermediul c\u0103rora te asiguri c\u0103 datele compromise sau \u0219terse pot fi recuperate (uneori, integral) dintr-o alt\u0103 surs\u0103 care nu a fost afectat\u0103 de atacul zero-day.<\/p>\n

4\ufe0f\u20e3 Actualizeaz\u0103-\u021bi softurile \u00een mod regulat<\/strong><\/p>\n

Softurile actualizate nu \u00ee\u021bi garanteaz\u0103 protec\u021bie \u00eempotriva atacurilor zero-day, \u00eens\u0103 ai siguran\u021ba c\u0103 vei avea la dispozi\u021bie c\u00e2t mai cur\u00e2nd posibil solu\u021bia lansat\u0103 (patch-ul).<\/p>\n

\u00cen plus, este important s\u0103 reduci suprafa\u021ba de atac \u0219i s\u0103 scapi de softul poten\u021bial vulnerabil pe care nu \u00eel utilizezi, except\u00e2nd programele importante, pentru care asiguri actualizarea.<\/p>\n

5\ufe0f\u20e3 <\/strong>Creeaz\u0103 \u0219i aplic\u0103 o politic\u0103 de securitate \u00een firm\u0103<\/strong> \u2013 \u00eei po\u021bi instrui pe angaja\u021bi s\u0103 pun\u0103 \u00een practic\u0103 bunele practici de securitate: s\u0103 nu dea click pe linkuri suspecte, s\u0103 nu dezv\u0103luie informa\u021bii confiden\u021biale \u00eenainte de a verifica autenticitatea sursei, s\u0103 \u0219tie cum s\u0103 identifice poten\u021biale tentative de spam, phishing etc.<\/p>\n

 <\/p>\n

Record de atacuri zero-day \u00een 2021<\/strong><\/span><\/h3>\n

Atacurile zero-day sunt tot mai dese \u0219i mult mai aproape dec\u00e2t ai putea crede! Iar 2021 este anul recordurilor. Cel pu\u021bin asta spun cifrele date de cercet\u0103tori \u0219i companii de securitate cibernetic\u0103. Anul acesta au fost g\u0103site cel pu\u021bin 66 de vulnerabilit\u0103\u021bi zero-day \u2013 aproape dublu fa\u021b\u0103 de 2020 \u0219i mai mult dec\u00e2t \u00een orice alt an \u00eenregistrat vreodat\u0103.<\/strong><\/p>\n

C\u00e2t de bine \u00ee\u021bi este protejat dispozitivul sau sistemul IT din firm\u0103? Decizia ta de acum poate s\u0103 te coste scump mai t\u00e2rziu sau poate s\u0103 \u00ee\u021bi salveze \u00eentreaga activitate sau companie.<\/p>\n

\u00a0<\/strong><\/p>\n

Construie\u0219te-\u021bi linia de ap\u0103rare \u00eempotriva atacurilor cibernetice<\/strong><\/span><\/h3>\n

Fii preg\u0103tit \u0219i con\u0219tient de amenin\u021b\u0103rile cibernetice \u0219i nu c\u0103dea \u00een capcana ideii \u201eMie nu are cum s\u0103 mi se \u00eent\u00e2mple asta!\u201d<\/em>. \u00cen ultimii ani, chiar noi, la One-IT, am fost martorii efectelor dezastruoase ale acestor atacuri \u021bintite c\u0103tre clien\u021bii no\u0219tri \u0219i, prin intermediul tehnologiei, am reu\u0219it s\u0103 prevenim sau s\u0103 minimiz\u0103m impactul zero-day.<\/p>\n

Pentru orice detalii suplimentare sau nel\u0103muriri legate de securitatea cibernetic\u0103 \u0219i ce po\u021bi implementa pentru a-\u021bi construi o linie de ap\u0103rare puternic\u0103, completeaz\u0103 urm\u0103torul formular de solicitare, iar noi te vom contacta \u00een cel mai scurt timp!<\/em><\/span><\/p>\n

\t\t\n\t\t<\/p>\n

\"work\"<\/span>
\n\t\t<\/a>\n\t\t<\/span><\/p>\n

 <\/p>\n

#StaySAFE<\/p>\n","protected":false},"excerpt":{"rendered":"

\u201eZero-day attacks\u201d (\u201eatacurile de zero zile\u201d) sunt printre cele mai periculoase incidente de securitate care afecteaz\u0103 at\u00e2t utilizatorii casnici, c\u00e2t \u0219i mediile corporate. Deoarece 2021 a dobor\u00e2t recordul de atacuri de hacking zero-day, afl\u0103 mai jos cum le po\u021bi recunoa\u0219te \u0219i cum le po\u021bi preveni.   \u00a0\u201eZero-day\u201d: vulnerabilit\u0103\u021bi, exploit-uri \u0219i atacuri critice \u201eZero-day\u201d este un […]<\/p>\n","protected":false},"author":4,"featured_media":6191,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[5,4,202,1,16],"tags":[373,188,234,374],"yoast_head":"\nAtacurile \u201ezero day\u201d au atins cifre record: cum le po\u021bi preveni \u00een 2021<\/title>\n<meta name=\"description\" content=\"Atacurile \u201ezero-day\u201d sunt printre cele mai periculoase incidente de securitate care afecteaz\u0103 utilizatorii \u0219i organiza\u021biile. 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