{"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\/et\/blog\/news\/rotajakiro-novoe-vredonosnoe-po-dlya-linux-maskiruyushheesya-pod-proczess-systemd","title":{"rendered":"RotaJakiro \u2014 uus pahavara Linuxile, mis maskeerib end systemd protsessina.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Uurimislabor 360 Netlab teatas, et nad on tuvastanud uue pahavara Linuxile, mille koodnimi on RotaJakiro ja mis sisaldab tagauksed s\u00fcsteemi kontrollimiseks. Pahavara v\u00f5is r\u00fcndajate poolt installida, kasutades \u00e4ra parandamata haavatavusi s\u00fcsteemis v\u00f5i n\u00f5rkade paroolide mahav\u00f5tmisega. <\/p>\n

Tagauks tuvastati kahtlase liikluse anal\u00fc\u00fcsi k\u00e4igus, mis p\u00e4rines \u00fchest s\u00fcsteemiprotsessist, mis avastati DDoS-r\u00fcnnakuks kasutatava botneti struktuuri uurimisel. Enne seda oli RotaJakiro olnud kolm aastat m\u00e4rkamatuks, sealhulgas esimesed katsed kontrollida VirusTotal teenuses MD5-hashidega faile, mis vastavad tuvastatud pahavarale, ulatuvad 2018. aasta maikuusse. <\/p>\n

RotaJakiro erip\u00e4raks on erinevate maskeerimistehnikate kasutamine, k\u00e4ivitades ilma privileegideta kasutaja ja root \u00f5igustega. Oma kohaloleku varjamiseks kasutas tagauks protsesside nimesid nagu systemd-daemon, session-dbus ja gvfsd-helper, mis, arvestades t\u00e4nap\u00e4evaste Linuxi distributsioonide koormust erinevate teenusprotsessidega, n\u00e4is alguses olevat seaduslikud ja ei tekitanud kahtlusi. <\/p>\n

Root \u00f5igustega k\u00e4ivitamisel loodi pahavara aktiveerimiseks skriptid \/etc\/init\/systemd-agent.conf ja \/lib\/systemd\/system\/sys-temd-agent.service ning ise pahavara t\u00e4idetav fail paigutati kui \/bin\/systemd\/systemd-daemon ja \/usr\/lib\/systemd\/systemd-daemon (funktsioonaliteet dubleeritakse kahes failis). Tavalise kasutaja \u00f5igustega k\u00e4ivitamisel kasutati automaatk\u00e4ivitamise faili $HOME\/.config\/au-tostart\/gnomehelper.desktop ja muudeti .bashrc, samas kui t\u00e4idetav fail salvestati kui $HOME\/.gvfsd\/.profile\/gvfsd-helper ja $HOME\/.dbus\/sessions\/session-dbus. Samal ajal k\u00e4ivitati m\u00f5lemat t\u00e4idetavat faili, millest iga\u00fcks j\u00e4lgis teise olemasolu ja taastas selle, kui see l\u00f5petas oma t\u00f6\u00f6. <\/p>\n

Oma tegevuse tulemuste varjamiseks rakendati tagaukses mitmeid kr\u00fcptimise algoritme, n\u00e4iteks kr\u00fcptiti oma ressursse AES-iga ja varjati suhtluskanalit kontrollijaga. serverilt<\/a> AES, XOR ja ROTATE kombo koos ZLIB abil surumisega. <\/p>\n

Omandi kogumikud k\u00fcsiti 4 domeenilt l\u00e4bi v\u00f5rgupordi 443 (sidekanalis kasutati oma protokolli, mitte HTTPS-i ega TLS-i). Domeenid (cdn.mirror-codes.net, status.sublineover.net, blog.eduelects.com ja news.thaprior.net) olid registreeritud 2015. aastal ja maapealsed Kiievis. hostimise teenusepakkuja<\/a> Deltahost. Tagauksel oli integreeritud 12 p\u00f5hifunktsiooni, mis v\u00f5imaldasid laadida ja k\u00e4itada pluginaid, millel oli t\u00e4iendav funktsionaalsus, edastada seadme andmeid, salajasi andmeid nuhkida ja kohalikke faile hallata.
\n
Allikas: 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\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 uus Linuxi pahavara, mis maskeerib end process systemd | ProHoster","description":"Uuringulabor 360 Netlab teatas uuest Linuxi pahavara t\u00fc\u00fcbist, mille koodinimi on RotaJakiro ja mis sisaldab tagaukse rakendust, mis v\u00f5imaldab s\u00fcsteemi 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