{"id":100066,"date":"2021-04-30T16:23:09","date_gmt":"2021-04-30T14:23:09","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/rotajakiro-novoe-vredonosnoe-po-dlya-linux-maskiruyushheesya-pod-proczess-systemd"},"modified":"2021-04-30T16:23:09","modified_gmt":"2021-04-30T14:23:09","slug":"rotajakiro-novoe-vredonosnoe-po-dlya-linux-maskiruyushheesya-pod-proczess-systemd","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/rotajakiro-novoe-vredonosnoe-po-dlya-linux-maskiruyushheesya-pod-proczess-systemd","title":{"rendered":"A RotaJakiro \u2014 \u00faj Linuxos rosszindulat\u00fa program, amely a systemd folyamatnak \u00e1lc\u00e1zza mag\u00e1t","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A 360 Netlab kutat\u00f3laborat\u00f3rium bejelentette, hogy felfedezett egy \u00faj Linux-ra \u00edrt rosszindulat\u00fa programot, amelynek k\u00f3dneve RotaJakiro, \u00e9s mely h\u00e1ts\u00f3ajt\u00f3t tartalmaz, amely lehet\u0151v\u00e9 teszi a rendszer ir\u00e1ny\u00edt\u00e1s\u00e1t. A rosszindulat\u00fa program telep\u00edt\u00e9se a t\u00e1mad\u00f3k \u00e1ltal a jav\u00edtatlan sebezhet\u0151s\u00e9gek kihaszn\u00e1l\u00e1s\u00e1val vagy megb\u00edzhatatlan jelszavak kital\u00e1l\u00e1s\u00e1val t\u00f6rt\u00e9nhetett. <\/p>\n

A h\u00e1ts\u00f3ajt\u00f3t egy gyan\u00fas forgalom elemz\u00e9se sor\u00e1n fedezt\u00e9k fel, amely egy DDoS-t\u00e1mad\u00e1s sor\u00e1n haszn\u00e1lt botnet strukt\u00far\u00e1j\u00e1nak vizsg\u00e1lata k\u00f6zben mer\u00fclt fel. A RotaJakiro eleddig \u00e9szrev\u00e9tlen maradt h\u00e1rom \u00e9vig, k\u00fcl\u00f6n\u00f6sen, mert az els\u0151 f\u00e1jlok VirusTotal-en t\u00f6rt\u00e9n\u0151 ellen\u0151rz\u00e9si k\u00eds\u00e9rletei, amelyek MD5 hash-ei megegyeztek a felfedezett rosszindulat\u00fa program\u00e9val, 2018 m\u00e1jus\u00e1ra dat\u00e1lhat\u00f3k. <\/p>\n

A RotaJakiro jellemz\u0151i k\u00f6z\u00f6tt szerepel, hogy k\u00fcl\u00f6nb\u00f6z\u0151 \u00e1lc\u00e1z\u00e1si technik\u00e1kat alkalmaz, amikor nem adminisztr\u00e1tori jogosults\u00e1g\u00fa felhaszn\u00e1l\u00f3k\u00e9nt vagy rootk\u00e9nt fut. Jelenl\u00e9t\u00e9nek eltitkol\u00e1s\u00e1ra a h\u00e1ts\u00f3ajt\u00f3 a systemd-daemon, a session-dbus \u00e9s a gvfsd-helper folyamatneveket haszn\u00e1lta, amelyek a modern Linux disztrib\u00faci\u00f3kban a sokf\u00e9le h\u00e1tt\u00e9rfolyamat miatt els\u0151 pillant\u00e1sra legitimnek t\u0171nnek, \u00e9s \u00edgy nem v\u00e1ltottak ki gyan\u00fat. <\/p>\n

Root jogosults\u00e1gokkal a rosszindulat\u00fa program aktiv\u00e1l\u00e1s\u00e1hoz a k\u00f6vetkez\u0151 f\u00e1jlok l\u00e9trehoz\u00e1sa t\u00f6rt\u00e9nt: \\\/etc\\\/init\\\/systemd-agent.conf \u00e9s \\\/lib\\\/systemd\\\/system\\\/sys-temd-agent.service, m\u00edg a rosszindulat\u00fa v\u00e9grehajthat\u00f3 f\u00e1jl a \\\/bin\\\/systemd\\\/systemd-daemon \u00e9s \\\/usr\\\/lib\\\/systemd\\\/systemd-daemon n\u00e9ven ker\u00fclt elhelyez\u00e9sre (a funkcionalit\u00e1s megdupl\u00e1zva lett a k\u00e9t f\u00e1jlban). Norm\u00e1l felhaszn\u00e1l\u00f3i jogosults\u00e1gok mellett az $HOME\\\/.config\\\/au-tostart\\\/gnomehelper.desktop autostart f\u00e1jlt haszn\u00e1lt\u00e1k, \u00e9s m\u00f3dos\u00edt\u00e1sokat v\u00e9geztek a .bashrc f\u00e1jlban, a v\u00e9grehajthat\u00f3 f\u00e1jlt pedig $HOME\\\/.gvfsd\\\/.profile\\\/gvfsd-helper \u00e9s $HOME\\\/.dbus\\\/sessions\\\/session-dbus n\u00e9ven t\u00e1rolt\u00e1k. Mindk\u00e9t v\u00e9grehajthat\u00f3 f\u00e1jl p\u00e1rhuzamosan futott, melyek mindegyike figyelte a m\u00e1sikat, \u00e9s helyre\u00e1ll\u00edtotta azt, ha az le\u00e1llt. <\/p>\n

A tev\u00e9kenys\u00e9gei eredm\u00e9nyeinek eltitkol\u00e1s\u00e1ra a h\u00e1ts\u00f3ajt\u00f3 t\u00f6bb titkos\u00edt\u00e1si algoritmust haszn\u00e1lt, p\u00e9ld\u00e1ul a saj\u00e1t forr\u00e1sainak titkos\u00edt\u00e1s\u00e1hoz AES-t, a kommunik\u00e1ci\u00f3s csatorna elrejt\u00e9s\u00e9hez pedig szerverrel<\/a> az AES, XOR \u00e9s ROTATE kombin\u00e1ci\u00f3j\u00e1t, t\u00f6m\u00f6r\u00edt\u00e9ssel ZLIB seg\u00edts\u00e9g\u00e9vel. <\/p>\n

A rosszindulat\u00fa szoftver n\u00e9gy domainekhez fordult a 443-as h\u00e1l\u00f3zati porton kereszt\u00fcl, hogy korm\u00e1nyzati parancsokat szerezzen be (a kommunik\u00e1ci\u00f3s csatorn\u00e1ban saj\u00e1t protokollt haszn\u00e1ltak, nem HTTPS-t \u00e9s TLS-t). A domainek (cdn.mirror-codes.net, status.sublineover.net, blog.eduelects.com \u00e9s news.thaprior.net) 2015-ben lettek regisztr\u00e1lva \u00e9s a kijevi Deltahostn\u00e1l vannak elhelyezve. szolg\u00e1ltat\u00f3<\/a> A h\u00e1ts\u00f3 ajt\u00f3ba 12 alapfunkci\u00f3t integr\u00e1ltak, amelyek lehet\u0151v\u00e9 tett\u00e9k b\u0151v\u00edtett funkci\u00f3j\u00fa pluginok bet\u00f6lt\u00e9s\u00e9t \u00e9s v\u00e9grehajt\u00e1s\u00e1t, az eszk\u00f6zadatok tov\u00e1bb\u00edt\u00e1s\u00e1t, a bizalmas adatok megfigyel\u00e9s\u00e9t \u00e9s a helyi f\u00e1jlok kezel\u00e9s\u00e9t.
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0430\u044f \u043b\u0430\u0431\u043e\u0440\u0430\u0442\u043e\u0440\u0438\u044f 360 Netlab \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0430 \u043e \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u0438 \u043d\u043e\u0432\u043e\u0433\u043e \u0432\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u043e\u0433\u043e \u041f\u041e \u0434\u043b\u044f Linux, \u043f\u043e\u043b\u0443\u0447\u0438\u0432\u0448\u0435\u0433\u043e \u043a\u043e\u0434\u043e\u0432\u043e\u0435 \u0438\u043c\u044f RotaJakiro \u0438 \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0449\u0435\u0433\u043e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0431\u044d\u043a\u0434\u043e\u0440\u0430, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0442\u044c \u0441\u0438\u0441\u0442\u0435\u043c\u043e\u0439. 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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-100066","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47RotaJakiro \u2014 \u00faj Linux rosszindulat\u00fa szoftver, amely a systemd folyamat\u00e1nak \u00e1lc\u00e1zza mag\u00e1t | ProHoster","description":"A 360 Netlab kutat\u00f3 laborat\u00f3rium \u00faj Linux rosszindulat\u00fa szoftver felfedez\u00e9s\u00e9r\u0151l sz\u00e1molt be, amely RotaJakiro k\u00f3dnevet kapott, \u00e9s tartalmaz egy h\u00e1ts\u00f3 ajt\u00f3 megval\u00f3s\u00edt\u00e1st, amely lehet\u0151v\u00e9 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