Vincent Canfield, woyang'anira maimelo ndi kuchititsa reseller cock.li, adapeza kuti intaneti yake yonse ya IP idawonjezedwa pamndandanda wa UCEPROTECT DNSBL pakuwunika padoko kuchokera pamakina oyandikana nawo. Ma subnet a Vincent adaphatikizidwa pamndandanda wa Level 3, momwe kutsekereza kumayendetsedwa ndi manambala odziyimira pawokha komanso kumakwirira ma subnets onse omwe ma detectors a spam adayambitsidwa mobwerezabwereza komanso ma adilesi osiyanasiyana. Zotsatira zake, wothandizira wa M247 adaletsa kutsatsa kwa maukonde ake ku BGP, kuyimitsa ntchito moyenera.
Vuto ndilakuti ma seva abodza a UCEPROTECT, omwe amadziyesa kuti ndi otsegula ndikuyesa kutumiza maimelo kudzera pawokha, amangophatikiza ma adilesi pamndandanda wa block kutengera ntchito iliyonse ya netiweki, osayang'ana kukhazikitsidwa kwa intaneti. Njira yofananira yotsekera imagwiritsidwanso ntchito ndi polojekiti ya Spamhaus.
Kuti mulowe pamndandanda wotsekereza, ndikokwanira kutumiza paketi imodzi ya TCP SYN, yomwe ingagwiritsidwe ntchito ndi omwe akuukira. Makamaka, popeza kutsimikizika kwa njira ziwiri za kulumikizana kwa TCP sikofunikira, ndizotheka kugwiritsa ntchito spoofing kutumiza paketi yowonetsa adilesi yabodza ya IP ndikuyambitsa kulowa mndandanda wa block wa aliyense. Mukayerekezera zochitika kuchokera ku ma adilesi angapo, ndizotheka kukulitsa kutsekereza ku Level 2 ndi Level 3, zomwe zimagwira ntchito yotsekereza ndi manambala a subnetwork ndi autonomous system.
Mndandanda wa Level 3 udapangidwa poyambilira kuti uthane ndi opereka chithandizo omwe amalimbikitsa machitidwe oyipa amakasitomala komanso osayankha madandaulo (mwachitsanzo, kutengera masamba omwe adapangidwa kuti azikhala ndi zinthu zosaloledwa kapena kutumiza spammers). Masiku angapo apitawo, UCEPROTECT inasintha malamulo oti alowe mu Mndandanda wa 2 ndi Mndandanda wa 3, zomwe zinayambitsa kusefa kwakukulu komanso kuwonjezeka kwa mindandanda. Mwachitsanzo, kuchuluka kwa omwe adalowa mumndandanda wa Level 3 adakula kuchoka pa 28 mpaka 843 machitidwe odziyimira pawokha.
Pofuna kuthana ndi UCEPROTECT, lingalirolo lidayikidwa patsogolo kuti mugwiritse ntchito maadiresi opotoka pakusanthula kuwonetsa ma IP kuchokera pagulu la othandizira a UCEPROTECT. Zotsatira zake, UCEPROTECT inalowetsa maadiresi a othandizira ake ndi anthu ena ambiri osalakwa m'mabuku ake, zomwe zinayambitsa mavuto ndi kutumiza maimelo. Network ya Sucuri CDN idaphatikizidwanso pamndandanda wotsekereza.
Source: opennet.ru