Ukungena nge-VPN bese kuba ransomware: yini efakazelwa ubufakazi
Ukungena ngo-02:14 namafayela abethelwe ngo-03:02 kuwukulandelana okufanele kuphenywe, hhayi indawo yokungena. Gcina ubufakazi bokuqinisekisa, iseshini kanye nomsingathi buhlukene.
Konke okungezansi kusebenzisa irekhodi elicatshangelwayo, elihlanganiselwe ukukhombisa isimo hhayi ukuchaza icala langempela. Lifundwa njengeketanga: ukuqinisekiswa kwesango ngo-02:14, iseshini yedeskithophu ngo-02:19, ukushintsha kwe-akhawunti enegunya ngo-02:41, namafayela abethelwe atholakale ngo-03:02. Umugqa wokuqala ubonakala njengempendulo, futhi umbiko uvame ukubhalwa sengathi iyona. Ukungena kuwumcimbi oqoshwe isango, hhayi isiphetho sokuthi umuntu wangena kanjani, futhi lowo mehluko unquma ukuthi uzokwenzenjani ngokulandelayo.
Isibonakaliso: ukungena okubonakala njengempendulo
Amarekhodi okuqinisekisa yibufakazi obutholakala kalula futhi obuhunyushwa ngokweqile kalula. Akhombisa ukuthi insiza yamukele ubufakazi bokuqinisekisa ngesikhathi esithile, kusuka ekhelini elithile, kwi-akhawunti ethile. Awukhombisi ukuthi ubani owayelawula ubufakazi, ukuthi isango lasetshenziswa kabi yini, noma ukuthi idivayisi yomnikazi we-akhawunti yayisivele yonakele yini.
Izincazelo ezintathu zilingana nomugqa wokungena ofanayo. Othile wasebenzisa iphasiwedi eyebiwe, futhi isango lenza ngqo lokho elakhelwe kona. Ikhompyutha ephathekayo eyayonakaliswe ngaphambili yavele yangena njengokujwayelekile. Insiza eveziwe engahlobene yanikeza umnyango wangempela, futhi iseshini ye-VPN iyisenzo sakamuva, esihlukile somdlali ofanayo.
Incazelo ngayinye ibikezela ubufakazi obuhlukile kwenye indawo endaweni, ngakho uphenyo kufanele lufune lezo zibikezelo, hhayi ukuqinisekiswa kwencazelo yokuqala evumelana. Iphasiwedi eyebiwe ibikezela indawo noma isikhathi sokuqinisekisa esingajwayelekile. Ikhompyutha ephathekayo eyonakele ibikezela izimpawu zomsingathi ngaphambi kokungena. Indawo yokungena engahlobene ibikezela umsebenzi ongahlobene nakancane nesango.
Hlukanisa izehlakalo ngaphambi kokuzixoxa
Bhala izehlakalo ngokuhlukana ngaphambi kokuba kube khona indaba, ngoba indaba imema ukuthi umugqa wesikhathi uhlelwe eduze komsolwa. Umugqa ngamunye kufanele usho ukuthi leyorekhodi liqinisekisa ini futhi, ngokwehlukile, ukuthi yini elingakwazi ukuyiqinisekisa lisedwa. Ngomzuzu imigqa emibili ihlangana ibe umusho owodwa, incazelo isivele inqobile.
Qaphela ukuthi umcimbi wokugcina umayelana nokutholakala hhayi nomhlaseli. Isikhathi sokutholakala nesikhathi sokonakala ngokuvamile sihlukaniswa ngamahora noma amasonto, futhi umbiko olinganisa lezi zombili uzokhohlisa wonke umfundi ozofika ngemva kwakho.
Qopha ukuthi isigxivizo sesikhathi ngasinye sivelaphi, hhayi ukuthi sithini kuphela. Isikhathi sokwamukelwa komqoqeli, isikhathi somcimbi nesikhathi sokutholakala kuyizinombolo ezintathu ezihlukile, futhi ukuzihlela ngokuthula zibe ikholomu eyodwa kuyindlela umugqa wesikhathi othola ngayo isimo ubufakazi obungakaze bube naso.
Hlanganisa amarekhodi kuphela lapho izikhombi zivumelana khona
Ukuhlanganisa amarekhodi kuyicabango, hhayi isinyathelo sokuhlela. Igama le-akhawunti, ikheli le-VPN elinikeziwe, umsingathi oqondiwe kanye nesikhombi seseshini kufanele kuvumelane ngaphambi kokuba imigqa emibili ibe indaba eyodwa. Ikheli lomphakathi elabiwe lanele, ngoba labiwa ngokwakhiwa.
| Record source | Join key that must match | What breaks when the key is missing |
|---|---|---|
| File-share or backup record | file path and modification time | impact cannot be ordered against any session |
| Host process record, EDR or audit log | host name and process start time | the process cannot be placed inside a session |
| Session broker or remote-desktop log | session identifier and target host | the session cannot be traced back to a gateway login |
| Gateway authentication log | account name and assigned VPN address | the session cannot be followed past the gateway |
Funda ithebula kusuka phansi kuye phezulu lapho ulandelela umnyango wokungena, futhi kusuka phezulu kuye phansi lapho unquma ububanzi bomthelela, ngoba imibuzo emibili idinga izikhombisiqhubezi eziphambene. Lapho izikhombi zivumelana ngempela, shono lokho futhi ucaphune amarekhodi womabili. Lapho zingavumelani, shiya isikhala sibonakala esikhundleni sokusicima ngokucabanga.
Lapha igama lomsebenzisi elijwayelekile lisekhohlisa futhi. I-akhawunti efanayo ingasetshenziswa umnikazi osemthethweni ekuseni futhi omunye umuntu ebusuku, futhi igama le-akhawunti lisedwa alikwazi ukubahlukanisa. Nikeza i-akhawunti, bese unikeza umuntu ngokwehlukile, futhi kuphela lapho okuthile kukusekela. Iningi lemigqa yesikhathi ewohlokayo ekubuyekezweni lenze lesi sinyathelo ngokushesha okukhulu.
Amalogi angekho yisikhala, hhayi ubufakazi obuphikayo
Ukungabikho kwezehlakalo zephasiwedi ehlulekile akufakazi ukuthi ukungena okuphumelelayo kwakusemthethweni. Ubufakazi bokuqinisekisa obubiwe obusebenzayo bukhiqiza irekhodi lokuqinisekisa eliphumelelayo futhi akukho kwehluleka nhlobo, futhi yilokho okwenza ukwebiwa kobufakazi bokuqinisekisa kukhange.
Ngokufanayo, imbobo evalwe namuhla isho okuthile ngosuku lwanamuhla. Ayisho lutho mayelana nokuthi leyonsebenzo yayiveziwe ngaleso sikhathi yini, yayisengozini ngaleso sikhathi yini, noma yayithwele ukuhlasela yini. Ukuhlelwa komlando nobufakazi bensebenzo yikho kuphela okuvala leso sikhala.
Shono isikhala ngokusobala embikweni. «Asinawo amarekhodi aleso sikhathi» umusho ovikelekayo; «akukho okunye okwenzeka» awusiwona, futhi uzocashunwa ubuyiselwe kuwe. Izikhala zinabanikazi futhi: shono uhlelo okwakufanele lukhiqize irekhodi nokuthi kungani lungakwenzanga. Lowo mugqa uguqula ukweqiwa kube into yokulungisa.
Bhala okutholakele ezingeni elifakazelwa ubufakazi
Xhumanisa ukugcinwa, ukuvinjelwa nokubuyiswa ngomnini wesigameko hhayi ngokumgedla. Iziqondiso zobuchwepheshe ze-CISA zigcizelela ukuqoqwa kwezinto namalogi afanele ngaphambi kokuba ukulungisa kushintshe okusatholakalayo, futhi lokho kulandelana kubaluleke ukudlula noma iyiphi ithuluzi elilodwa.
Ukuphinda kusetshenziswe ukuxhashazwa okusolwayo ezintweni eziphilayo ukuvala isikhala akukufanelanga ingozi eyengeziwe. Ukuhlolwa okukhombisa ukuthi ukuhlasela kwakungase kusebenze akubona ubufakazi bokuthi kwasebenza, futhi umehluko phakathi kwalezi zitatimende ezimbili ukuyo yonke inhlonipho yalo msebenzi.
Qeda ngezinhla ezine: okwabonwa, ukuthi amarekhodi asekela yiphi ubudlelwano, okusalokhu kuyicabango nokuthi yimaphi amarekhodi angatholakali. «I-akhawunti ye-VPN yasetshenziswa ngesikhathi sesigameko» ingena ohlwini lwesibili lapho amarekhodi ekusekela. «I-VPN yabangela i-ransomware» ayingeni ndawo kuze kube yilapho okuthile kufakazela ubudlelwano besizathu.