Vincent Canfield, motsamaisi oa tšebeletso ea imeile le morekisi ea amohelang cock.li, o ile a fumana hore marang-rang a hae kaofela a IP a ekelitsoe ka bohona lenaneng la DNSBL UCEPROTECT bakeng sa ho skena koung ho tsoa mechineng e haufi ea inthanete. Subnet ea Vincent e behiloe lenaneng la Boemo ba 3, le sebelisang linomoro tsa sistimi e ikemetseng ho thibela subnet kaofela tse neng li qalile ho lemoha spam ka makhetlo a mangata bakeng sa liaterese tse fapaneng. Ka lebaka leo, mofani oa M247 o ile a tima phatlalatso ea e 'ngoe ea marang-rang a hae ho BGP, a emisa tšebeletso ka katleho.
Bothata ke hore ke tsa bohata li-server UCEPROTECT, e iketsang eka ke li-relay tse bulehileng 'me e lemoha boiteko ba ho romela imeile ka tsona, e eketsa liaterese ka bo eona lenaneng la li-block ho latela ts'ebetso efe kapa efe ea marang-rang, ntle le ho netefatsa khokahano ea marang-rang. Mokhoa o tšoanang oa ho thathamisa li-block o boetse o sebelisoa ke projeke ea Spamhaus.
Hore ho kenyelletsoe lenaneng la li-block, ho lekane ho romela pakete e le 'ngoe ea TCP SYN, e ka sebelisoang ke bahlaseli. Haholo-holo, kaha netefatso ea khokahano ea TCP ea mahlakore a mabeli ha e hlokehe, hoa khoneha ho qhekella pakete e hlalosang ea bohata. Liaterese tsa IP le ho qala ho thibela moamoheli ofe kapa ofe. Ka ho etsisa ts'ebetso ho tsoa liatereseng tse ngata, ho thibela ho ka eketsoa ho ea Boemong ba 2 le Boemo ba 3, tse thibelang ka subnet le nomoro ea sistimi e ikemetseng.
Lenane la Boemo ba 3 le ne le qadilwe ho lwantsha bafani ba kgothalletsang mesebetsi e kotsi mme ba hloleha ho arabela dingongoreho (mohlala, ditshebeletso tsa ho tshwara dibuka tse entsweng ka ho kgetheha ho tshwara dikahare tse seng molaong kapa ho sebeletsa batho ba romelang melaetsa e seng molaong). Matsatsi a mmalwa a fetileng, UCEPROTECT e fetotse melao ya ho kenyeletswa mananeng a Boemo ba 2 le Boemo ba 3, e leng se ileng sa lebisa ho sefeng ka matla le keketseho ya boholo ba lenane. Mohlala, palo ya dingolwa lenaneng la Boemo ba 3 e eketsehile ho tloha ho 28 ho ya ho ditsamaiso tse ikemetseng tse 843.
Ho loantša UCEPROTECT, ho ile ha hlahisoa mohopolo oa ho sebelisa liaterese tse thetsitsoeng tse nang le liaterese tsa IP tse tsoang ho bafani ba UCEPROTECT nakong ea ho skena. Qetellong, UCEPROTECT e ekelitse liaterese tsa bafani ba eona le ba bang ba bangata ba se nang molato li-database tsa eona, e leng se ileng sa baka mathata a ho fana ka imeile. Marang-rang a CDN a Sucuri le 'ona a kenyelelitsoe lenaneng la li-block.
Source: opennet.ru
