Duk da cewa gaskiya ne cewa yana da mahimmanci don kare hanyoyin sadarwa, a cikin zamanin dijital wanda muka tsinci kanmu a ciki, yana da mahimmanci mu san yadda ake cire fayiloli. A cikin wannan labarin za mu koya muku yadda ake yin shi daidai.
Fassara fayiloli
Fassara fayil yana nufin bayyana abubuwan da ke cikin saƙo wanda aka ɓoye bayanan sa. A nata ɓangaren, hanyar da ke canza bayanai ko rubutun saƙo, har ta kai ga ɓoye shi, ana kiransa ɓoyewa.
Rufewa ko rufaffen fayil yana buƙatar amfani da algorithms na lissafi. Ta wannan hanyar, sanin alƙalamin ƙira kawai za a iya dawo da abun cikin fayil ɗin da aka ce. Hakazalika, dole ne a gane cewa kusan dukkan sakonnin da ake aikawa ta intanet an rufa masu asiri, wannan da niyyar sa sadarwa ta kasance mafi aminci.
Dangane da wannan, yana da mahimmanci a fayyace cewa wani lokacin algorithm na ɓoye yana amfani da maɓalli iri ɗaya don ɓoyewa da ɓoyewa. Duk da yake a wasu lokuta, duka biyun sun bambanta. Wannan yana haifar da hanyoyi da yawa don cire fayiloli, gami da yuwuwar buƙata decrypt files by virus.
Ainihin, don cire logarithm na maɓallin daidaitawa, wato, wanda ya dace da matakai biyu (ɓoyewa da ɓoyewa), abin da dole ne ku yi shine gwada maɓallin bayan maɓalli har sai kun sami daidai. Dangane da mahimmin algorithms na asymmetric, wanda ya ƙunshi na jama'a da na sirri, abin da ake buƙata shine samun bayanan sirrin da aka raba tsakanin ɓangarorin biyu.
A takaice dai, samun mabuɗin don samun damar bayanan da aka ɓoye ta amfani da maƙallan maɓallin asymmetric yana nufin cewa za a iya samun maɓallin keɓaɓɓen daga wanda aka buga. Wannan yana buƙatar yin amfani da hadaddun lissafin lissafi.
Ko ta wace hanya, karya alƙaluman ɓoyayyen ɓoye ta hanyar neman maɓalli da hannu an san shi azaman hari mai ƙarfi.
A ƙarshe, dole ne a faɗi cewa lokacin da aka kashe don cire fayil ɗin ya bambanta dangane da wahalar sarrafa maɓallin, wato, a kan tsawon manyan abubuwan da ake amfani da su yayin ɓoyayyen ɓoyewa. Bugu da kari, karfin sarrafa kwamfuta da ake amfani da shi yana da tasiri.
Ta wannan hanyar, yana yiwuwa a wasu lokutan za mu iya cire fayil a cikin mintuna kaɗan, kuma a wasu lokuta tsarin yana ɗaukar sa'o'i da yawa har ma da kwanaki ko watanni. A cikin mafi munin yanayi ba zai yuwu a cire fayilolin ta kowace hanya ba.
Yadda ake cire fayiloli ta hanyar ƙwayoyin cuta?
A halin yanzu, akwai aikace -aikacen ɓarna da yawa waɗanda ke iya toshe takaddun mu ta hanyar ɓoye saƙonnin da ke cikin su. Babban halayyar wannan nau'in ƙwayar cuta, da ake kira ransonware, ita ce mai fashin kwamfuta ko mai laifin yanar gizo yana buƙatar biyan kuɗi mai yawa, a matsayin fansa a madadin dawo da abun da aka sace.
A gefe guda kuma, ya kamata a ambaci cewa irin wannan harin na kwamfuta yana daga cikin mafi haɗari. Domin, don cimma manufarta, kwayar cutar tana aiwatar da ɓoyayyen ɓoyayyen tsari, duka ga fayilolin tsarin da fayilolin mai amfani. Kamar yadda nau'in ɓoyewar da aka yi amfani da shi ya bambanta ga kowane nau'in ransonware, akwai bambance -bambancen kamuwa da cuta da yawa, yana sa tsarin dawo da fayil ɗin ya yi wahala.
Idan kuna son ƙarin sani game da menene fansa, Ina gayyatar ku don karanta labarin mu akan nau'in ƙwayoyin cuta na kwamfuta wanda zai iya lalata kayan aikin ku.
Tabbas, a can za ku sami bayanin da zai zama da amfani don kare ku daga kowane irin ƙwayar cuta. Hakanan, don dacewa, zaku iya karanta labarin akan ka'idodin tsaro na kwamfuta.
Daidai saboda wannan wahalar, wasu mutane sun yarda su biya fansa. Duk da haka, ba a ba da shawarar ba. Musamman tunda babu tabbacin cewa ko da biyan kuɗin da aka nema, masu aikata laifuka ta yanar gizo zasu dawo da bayanan. Bugu da ƙari, biyan kuɗi zai kasance don tallafawa da ƙarfafa irin wannan laifin.
Yanzu, bayan faɗi abin da ke sama, lokaci yayi da za a gabatar da wasu kayan aikin da suka saba decrypt files by virus.
Rufe fayilolin da Locky ya kulle
Locky yana da mahimmanci kuma sanannen nau'in ƙwayar cuta. Ana watsa shi ta hanyar imel ɗin da ke ɗauke da fayiloli iri .doc da .xls, waɗanda mai karɓa ke kashewa ba tare da kowane irin taka tsantsan ba.
Mataki na farko shine zazzagewa da girka shirin Emsisoft Decrypter AutoLocky, kayan aiki mai sauƙin amfani don keɓance takaddun da Locky ya kulle. Wato, tare da wannan shirin yana yiwuwa a cire duk wani takaddar da ke da wannan kari, a mayar da ita yadda take.
Don haka, babban fa'idar wannan software ita ce, bayan dawo da takaddun, ana iya buɗe su daga shirin da ya dace ba tare da sun sha wahala wani nau'in asarar bayanai ba.
Da zarar an saukar da aikace -aikacen, kuma bayan karɓar sharuɗɗan sa, mataki na gaba shine gudanar da shi. Don yin wannan, ya zama dole danna kan sunan fayil ɗin decrypt_autolocky.exe.
A farkon shigarwa, dole ne mu ba da izinin aiwatar da shi, danna maɓallin Ee.
Shirin zai gwada ta atomatik don samun maɓallin maƙallan. Lokacin da aka yi haka, saƙo zai bayyana a kan allo yana sanar da mu game da binciken kuma yana ba da shawarar cewa mu fara cire fayil ɗin ƙaramin rukuni na fayiloli. Wannan ya faru ne saboda yiwuwar maɓallin da aka samo ba daidai bane.
Daga baya dole ne mu karanta kuma mu yarda da sharuɗɗan lasisi. A kan allo na gaba za ku iya fara jujjuya fayilolin da aka kulle. Ta hanyar tsoho, shirin yana fara nemo fayiloli akan drive C. Don ƙara ƙarin wurare don dubawa, kawai danna zaɓi Ƙara Jaka.
A ƙarshe, mun zaɓi zaɓi na Decrypter don fara cire fayilolin cikin jerin da ke bayyana akan allon.
Fassara fayiloli ta amfani da shirye -shiryen riga -kafi
Kamar yadda muka ambata a baya, akwai nau'ikan kayan fansa iri -iri, wanda fadada su ya bazu cikin 'yan shekarun nan. Abin farin, masana'antun software na riga -kafi suna kan gaba, koyaushe suna neman wasu hanyoyin da za a iya magance tasirin waɗannan shirye -shiryen ƙeta.
A matsayin ƙarin ƙima, shirye -shiryen riga -kafi kamar Avast da AVG suna da ikon ɓoye fayilolin da aka ɓoye ta nau'ikan nau'ikan fansa. .
Dangane da Avast, yana da ikon ɓoye fayilolin da aka rufaffen ta hanyar fansa kamar: Badblock, Cryp888, SZFLocker, Apocalipsys, Bart, Alcatraz Locker, CriSys, Legion, TeslaCrypt, da sauransu.
A nasa ɓangaren, AVG yana da kayan aikin lalata kayan fansa kamar: Badblock, Apocalipsys, Cryp888, Legion, Bart, SZFLocker da TeslaCrypt.
Fassara fayiloli ta amfani da TeslaDecoder
TeslaDecoder kayan aiki ne wanda ke ba da damar decrypt files by virus, musamman, fayilolin da TeslaCrypt suka ɓoye, waɗanda ƙarshensu sune: .ecc, .ezz, .exx, .xyz, .zzz, .aaa, .abc, .ccc da .vvv.
Bambancin ƙwayar cutar Teslacrypyt shine cewa logarithm na lissafin lissafi da yake amfani da shi don ɓoye fayiloli shine ɓoyayyen ɓoyayye. Bugu da ƙari, a duk lokacin da ƙwayar cuta ta sake buɗe sabon maɓalli mai mahimmanci, wanda aka adana a cikin sabbin fayilolin ɓoye. Wannan yana haifar da makullin ɓoyewa ba ɗaya bane ga duk fayiloli.
Sanin wannan rauni na ƙwayar cuta, masana'antun sun zaɓi yin amfani da nau'in algorithm wanda ke ɓoye maɓallan kuma, a lokaci guda, yana adana su a cikin kowane fayil ɗin da aka ɓoye. Matsalar ita ce ƙarfin ƙarfin algorithm da aka yi amfani da shi ya dogara da tsawon manyan lambobin da ke aiki azaman tushe, kuma wannan bai isa ba.
A takaice dai, saboda tsawon maɓallin da aka adana, yana yiwuwa a yi amfani da shirye -shirye na musamman don dawo da shi, kamar TeslaDecoder.
Matakan da ke ba ku damar amfani da wannan shirin don cire fayiloli, sune masu zuwa:
Da farko dole ne mu yi shine ƙirƙirar babban fayil, inda za mu kwafa fayil ɗin da aka ɓoye. Idan tsawo fayil ɗin shine .ecc ko .ezz, dole ne mu kuma kwafa fayil ɗin key.dat ko, in ba haka ba, fayil ɗin Recovery_ key.txt ko Recovery_file.text.
Sannan muna buƙatar saukar da software na TeslaDecoder kuma sanya shi a cikin sabon fayil ɗin aiki da aka ƙirƙira. Da zarar mun sami fayil ɗin TeslaViewer.exe, muna danna zaɓi na Mai Binciken.
Na gaba, za mu zaɓi fayil ɗin da aka ɓoye wanda muka kwafa a cikin matakan da suka gabata kuma nan da nan za mu iya ganin maɓallan ɓoyewar da ake buƙata. Idan fayilolin .ecc ne ko .ezz, maimakon zaɓar fayil ɗin da aka ɓoye, mun zaɓi fayil ɗin key.dat.
Na gaba, muna danna zaɓi Ƙirƙiri work.txt don ƙirƙirar fayil na irin wannan, wanda zai adana bayanan da aka samu yanzu.
Abu na gaba shine sanya maɓallin maɓalli. Don yin wannan, dole ne kuyi amfani da injin binciken FactorDB, kuma zaɓi Factorize! Option. A wannan lokacin yana iya faruwa cewa an ƙididdige lambar gaba ɗaya ko kuma kawai ɓangaren ta ne. A cikin duka biyun, bin umarnin kan allon, zamu iya kammala tsarin sarrafa abubuwa.
Samun sakamakon ƙaddamarwa, dole ne a kwafe shi cikin fayil ɗin work.txt.
Yanzu dole ne mu shiga babban fayil ɗin aiki kuma mu nemi fayil ɗin TeslaRefactor.exe. Lokacin da muka same shi, muna ci gaba da aiwatar da wannan fayil ɗin. Muna kwafa abubuwan da aka adana a cikin aiki.txt a cikin akwatin da ya bayyana akan allon, wanda aka ƙaddara don sanya abubuwan ƙima.
A kan wannan allo, amma a jere na gaba, dole ne mu kwafa ƙimar keyBC na Jama'a wanda shi ma yana cikin fayil ɗin work.txt.
A ƙarshen kammala bayanan da ake nema a kowane ɗayan filayen, muna danna kan Zaɓin maɓallin zaɓi mai zaman kansa. TeslaRefactor zai sake gina mahimmin darajar ta atomatik. Ta hanyar tsoho, zai bayyana a filin da ake kira Keɓaɓɓen maɓalli (hex).
A wannan ɓangaren aiwatarwa, yana da mahimmanci a bincika idan ƙimar samfur (dec) yayi daidai da ƙima mai ƙima da aka samu a cikin fayil ɗin work.txt. A takaice dai, dole ne mu tabbatar da ƙimar maɓallin.
Kafin ci gaba, dole ne mu kwafa ƙimar Maɓallin Keɓaɓɓu (hex) a cikin fayil ɗin work.txt.
Yanzu ya zama dole don zuwa babban fayil ɗin aiki don gudanar da fayil ɗin Teslaecoder.exe azaman Mai Gudanarwa. Bayan zaɓin zaɓi Run a matsayin Mai Gudanarwa, muna danna zaɓi Zaɓin Maɓallin.
A cikin taga mai zuwa, mun shigar da darajar Maɓallin Keɓaɓɓu (hex), yayin da dole ne mu zaɓi kariyar fayilolin mu. Don kammala wannan ɓangaren, mun danna zaɓi maɓallin Saiti.
Abu na gaba shine yin gwajin decryption. Don yin wannan, muna neman samfurin fayil ɗin da muka fara kwafa a cikin babban fayil ɗin aiki. Jarabawar tana farawa lokacin da muka danna zaɓin Jaka na Decrypt, tare da zaɓi fayil ɗin da ake tambaya.
Idan an ɓoye fayil ɗin cikin nasara, a shirye muke mu cire sauran fayilolin da aka ɓoye. Don wannan ya zama dole don zaɓar zaɓi na Decrypt All.
A ƙarshe, idan ba a ɓoye fayil ba, yana nufin cewa yana da wani maɓallin ɓoyewa. Ta hanyar da zai zama dole a kwafa wannan fayil ɗin a cikin babban fayil ɗin aiki kuma a sake maimaita tsari duka.
Wani akwati na musamman: Zaɓi fayil ɗin PDF
A wasu lokuta, yana iya faruwa cewa muna karɓar fayil ɗin PDF wanda aka ɓoye, wanda muna da mabuɗin don ci gaba da cire shi. Idan wannan lamari ne, tsari yana da sauƙi kai tsaye.
Abu na farko da muke buƙatar yi shine samun direban firintar PDF da mai karanta takaddar PDF wanda ba Adobe ba. Foxit Reader yana aiki lafiya don manufar mu.
A cikin taga daidai da mai sarrafawa, muna ɗora fayil ɗin a cikin Foxit Reader. Tsarin zai nemi mu shigar da kalmar sirri da aka raba.
Bayan dubawa cewa an nuna duk bayanan dalla -dalla na taga daidai, muna aiwatar da umarnin da ake buƙata kamar za mu buga takaddar. Wato, muna aika shi zuwa firintar PDF.
Sakamakon wannan aikin shine kwafin ainihin takaddar, amma ba tare da ɓoyewa ba.
A ƙarshe, za mu amsa tambayar da mutane da yawa za su iya yi wa kansu.
Shin yana yiwuwa a cire fayilolin kan layi?
Amsar wannan tambayar tana da ma'ana idan muka yi magana kan al'amuran tsaro.
Kamar yadda muka riga muka gani, don ɓoye fayilolin ya zama dole mu fallasa wani ɓangare na bayanan mu ta wata hanya. Don haka, idan za mu koma ga sabis na kan layi, za mu ƙara yawan damar da wasu mutane ke da ita, samun damar amfani da shi cikin ƙeta, gyara shi ko ma kawar da shi na dindindin.
Don haka babu wasu aikace -aikacen da ke ba mu damar yin decrypt ta hanyar fayilolin intanet da aka ɓoye ta wani nau'in fansa. Ta wannan hanyar hanyar da kawai za a iya cimma wannan ita ce ta zazzagewa da sanyawa a kan kwamfutarka ɗaya daga cikin kayan aikin da yawa da ake samu a cikin hanyoyin sadarwar, kamar yadda muka ambata a cikin wannan labarin.
Shawara ta ƙarshe ita ce tabbatar mun bi umarnin masu haɓaka waɗannan nau'ikan aikace -aikacen zuwa wasiƙar.