{"id":5346,"date":"2017-09-05T14:27:01","date_gmt":"2017-09-05T12:27:01","guid":{"rendered":"https:\/\/praha7.cz\/?page_id=5346"},"modified":"2018-01-23T12:48:46","modified_gmt":"2018-01-23T11:48:46","slug":"vyderacsky-software","status":"publish","type":"page","link":"https:\/\/www.praha7.cz\/temata\/bezpecnost\/prevence\/on-line-bezpecnost\/vyderacsky-software\/","title":{"rendered":"Vyd\u011bra\u010dsk\u00fd software"},"content":{"rendered":"

[perex]<\/p>\r\n

Vyd\u011bra\u010dsk\u00fd software (ransomware) se stal nejv\u011bt\u0161\u00ed hrozbou internetu: jeho klon WannaCry v kv\u011btnu 2017 napadl a zablokoval statis\u00edce po\u010d\u00edta\u010d\u016f po cel\u00e9m sv\u011bt\u011b!<\/p>\r\n

[\/perex]<\/p>\r\n

Jak p\u0159edej\u00edt \u00fatok\u016fm ransomware?<\/h4>\r\n

1. Z\u00e1lohujte! Z\u00e1lohujte! Z\u00e1lohujte!<\/strong> P\u0159ipravte obnovu sv\u00e9ho syst\u00e9mu, aby infekce zp\u016fsoben\u00e1 ransomware zcela nezni\u010dila va\u0161e osobn\u00ed data. Nejlep\u0161\u00ed je vytvo\u0159it si dv\u011b z\u00e1lohy: jednu um\u00edst\u011bnou v prohl\u00ed\u017ee\u010di Cloud, k n\u00ed\u017e budete m\u00edt vzd\u00e1len\u00fd p\u0159\u00edstup (doporu\u010dujeme pou\u017e\u00edt slu\u017ebu s automatick\u00fdm z\u00e1lohov\u00e1n\u00edm dat) a druhou ulo\u017eenou fyzicky (p\u0159enosn\u00fd disk, jin\u00fd laptop, atd.). Z\u00e1loha by m\u011bla b\u00fdt odpojena od va\u0161eho po\u010d\u00edta\u010de. Z\u00e1loha se v\u00e1m hod\u00ed tak\u00e9 v p\u0159\u00edpadech, kdy n\u00e1hodou sma\u017eete kritick\u00e1 data nebo v\u00e1m zkolabuje disk.<\/p>\r\n

2. Pou\u017e\u00edvejte siln\u00fd antivirov\u00fd program<\/strong> k ochran\u011b va\u0161eho syst\u00e9mu. Nevyp\u00ednejte „heuristick\u00e9 funkce“, proto\u017ee to umo\u017e\u0148uje zachytit vzorky ransomware, kter\u00fd je\u0161t\u011b nebyl form\u00e1ln\u011b detekov\u00e1n. Ne v\u0161e, co je zdarma, je pln\u011b funk\u010dn\u00ed, co\u017e plat\u00ed tak\u00e9 o antivirov\u00e9 ochran\u011b. Jedin\u00e9 aktu\u00e1ln\u011b re\u00e1ln\u00e9 ochrany maj\u00ed vy\u0161\u0161\u00ed (dra\u017e\u0161\u00ed) verze antivir\u016f od BitDefenderu a Sophosu pracuj\u00edc\u00ed s cloudov\u00fdm sandboxem (jde o bezpe\u010dnostn\u00ed mechanismus, kter\u00fd odd\u011bluje pr\u00e1v\u011b prob\u00edhaj\u00edc\u00ed procesy).<\/p>\r\n

3.<\/strong> Udr\u017eujte ve\u0161ker\u00fd software ve va\u0161em po\u010d\u00edta\u010di aktualizovan\u00fd.<\/strong> Kdy\u017e je zve\u0159ejn\u011bna aktualizace va\u0161eho opera\u010dn\u00edho syst\u00e9mu (OS) nebo aplikac\u00ed, instalujte je. A pokud software nab\u00edz\u00ed automatick\u00e9 aktualizace, p\u0159ijm\u011bte je.<\/p>\r\n

4.<\/strong> Nikomu nev\u011b\u0159te.<\/strong> Ka\u017ed\u00fd \u00fa\u010det m\u016f\u017ee b\u00fdt napaden a odkazy na \u0161kodliv\u00fd software m\u016f\u017eete dostat od sv\u00fdch p\u0159\u00e1tel na soci\u00e1ln\u00edch m\u00e9di\u00edch, od koleg\u016f nebo spoluhr\u00e1\u010d\u016f online her, a to i bez jejich v\u011bdom\u00ed. Nikdy neotv\u00edrejte p\u0159\u00edlohy e-mail\u016f od lid\u00ed, kter\u00e9 nezn\u00e1te. \u201eKyberkrimin\u00e1ln\u00edci\u201c \u010dasto rozes\u00edlaj\u00ed l\u017eiv\u00e9 e-mailov\u00e9 zpr\u00e1vy, kter\u00e9 jsou velmi podobn\u00e9 ofici\u00e1ln\u00edm leg\u00e1ln\u00edm v\u00fdzv\u00e1m nebo potvrzen\u00edm z online obchod\u016f, bank, policie, soudu, finan\u010dn\u00edho \u00fa\u0159adu, apod., a sv\u00e1d\u00ed v\u00e1s k tomu, abyste klikli na odkaz a vpustili tak do syst\u00e9mu va\u0161eho po\u010d\u00edta\u010de \u0161kodliv\u00fd software.<\/p>\r\n

5.<\/strong> Povolte „Zobrazit p\u0159\u00edpony soubor\u016f“ v nastaven\u00ed Windows ve va\u0161em po\u010d\u00edta\u010di.<\/strong> Usnadn\u00ed v\u00e1m to snadn\u011bji odhalovat potenci\u00e1ln\u011b \u0161kodliv\u00e9 soubory. D\u00e1vejte si pozor na p\u0159\u00edlohy typu „.exe“, „.vbs“ a „.scr“. Podvodn\u00edci mohou vyu\u017e\u00edvat dal\u0161\u00ed typy k zamaskov\u00e1n\u00ed \u0161kodliv\u00e9ho softwaru jako video, foto, nebo dokument (hot-chics.avi.exe nebo doc.scr).<\/p>\r\n

6.<\/strong> Pokud odhal\u00edte z\u00e1vadn\u00fd nebo nezn\u00e1m\u00fd proces ve sv\u00e9m p\u0159\u00edstroji, odpojte ho okam\u017eit\u011b od internetu a jin\u00fdch s\u00edt\u00ed (jako je Wi-Fi)<\/strong>. Zabr\u00e1n\u00edte \u0161\u00ed\u0159en\u00ed infekce a m\u016f\u017eete zah\u00e1jit l\u00e9\u010dbu.<\/p>\r\n

Co d\u011blat p\u0159i napaden\u00ed vyd\u011bra\u010dsk\u00fdm software?<\/h4>\r\n

1. V p\u0159\u00edpad\u011b napaden\u00ed se obra\u0165te na odborn\u00edky z antivirov\u00fdch spole\u010dnost\u00ed Avast, BitDefender, Eset, Kaspersky, Sophos, apod. Cenn\u00e9 informace z\u00edsk\u00e1te na webu Nomoreransom.org.<\/p>\r\n

2. \u00datok spojen\u00fd s vyd\u00edr\u00e1n\u00edm nahlaste na m\u00edstn\u00edm odd\u011blen\u00ed Policie \u010cR.<\/p>\r\n

3. Nedoporu\u010dujeme platit v\u00fdkupn\u00e9 (ransom). Kdy\u017e po\u0161lete sv\u00e9 pen\u00edze \u00fato\u010dn\u00edk\u016fm, potvrzujete t\u00edm, \u017ee ransomware funguje, a p\u0159itom nem\u00e1te z\u00e1ruku, \u017ee obratem dostanete kl\u00ed\u010d k odemknut\u00ed sv\u00e9ho po\u010d\u00edta\u010de.<\/p>\r\n

\r\n

Texty vznikly v r\u00e1mci projektu Bezpe\u010dn\u011b online.<\/p>","protected":false},"excerpt":{"rendered":"[perex] Vyd\u011bra\u010dsk\u00fd software (ransomware) se stal nejv\u011bt\u0161\u00ed hrozbou internetu: jeho klon WannaCry v kv\u011btnu 2017 napadl a zablokoval statis\u00edce po\u010d\u00edta\u010d\u016f po cel\u00e9m sv\u011bt\u011b! [\/perex] Jak p\u0159edej\u00edt \u00fatok\u016fm ransomware? 1. Z\u00e1lohujte! Z\u00e1lohujte! Z\u00e1lohujte! P\u0159ipravte obnovu sv\u00e9ho syst\u00e9mu, aby infekce zp\u016fsoben\u00e1 ransomware zcela nezni\u010dila va\u0161e osobn\u00ed data. Nejlep\u0161\u00ed je vytvo\u0159it si dv\u011b z\u00e1lohy: jednu um\u00edst\u011bnou v prohl\u00ed\u017ee\u010di Cloud, k n\u00ed\u017e budete […]","protected":false},"author":2,"featured_media":0,"parent":5332,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.praha7.cz\/api\/wp\/v2\/pages\/5346"}],"collection":[{"href":"https:\/\/www.praha7.cz\/api\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.praha7.cz\/api\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.praha7.cz\/api\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.praha7.cz\/api\/wp\/v2\/comments?post=5346"}],"version-history":[{"count":8,"href":"https:\/\/www.praha7.cz\/api\/wp\/v2\/pages\/5346\/revisions"}],"predecessor-version":[{"id":12761,"href":"https:\/\/www.praha7.cz\/api\/wp\/v2\/pages\/5346\/revisions\/12761"}],"up":[{"embeddable":true,"href":"https:\/\/www.praha7.cz\/api\/wp\/v2\/pages\/5332"}],"wp:attachment":[{"href":"https:\/\/www.praha7.cz\/api\/wp\/v2\/media?parent=5346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}