{"id":104340,"date":"2022-06-10T09:36:51","date_gmt":"2022-06-10T07:36:52","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/simbiote-vredonosnoe-po-dlya-linux-ispolzuyushhee-ebpf-i-ld_preload-dlya-skrytiya"},"modified":"2022-06-10T09:36:51","modified_gmt":"2022-06-10T07:36:52","slug":"simbiote-vredonosnoe-po-dlya-linux-ispolzuyushhee-ebpf-i-ld_preload-dlya-skrytiya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/simbiote-vredonosnoe-po-dlya-linux-ispolzuyushhee-ebpf-i-ld_preload-dlya-skrytiya","title":{"rendered":"Simbiote \u2014 malware p\u00ebr Linux, q\u00eb p\u00ebrdor eBPF dhe LD_PRELOAD p\u00ebr t'u fshehur","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Hulumtuesit nga kompanit Intezer dhe BlackBerry zbuluan nj\u00eb malware t\u00eb quajtur Simbiote, q\u00eb p\u00ebrdoret p\u00ebr t\u00eb instaluar backdoor dhe rootkit n\u00eb server\u00ebt e kompromentuar q\u00eb funksionojn\u00eb me Linux. Malware-u u identifikua n\u00eb sistemet e institucioneve financiare n\u00eb disa vende t\u00eb Amerik\u00ebs Latine. P\u00ebr t\u00eb instaluar Simbiote n\u00eb sistem, sulmuesi duhet t\u00eb ket\u00eb akses root, i cili mund t\u00eb fitohet, p\u00ebr shembull, pas shfryt\u00ebzimit t\u00eb dob\u00ebsive t\u00eb pap\u00ebrmir\u00ebsuara ose rrjedhjes s\u00eb akreditiveve. Simbiote lejon q\u00eb t\u00eb siguroj\u00eb prania e tij n\u00eb sistem pas nj\u00eb sulmi p\u00ebr t\u00eb kryer sulme t\u00eb tjera, p\u00ebr t\u00eb fshehur aktivitetin e aplikacioneve t\u00eb tjera malware dhe p\u00ebr t\u00eb organizuar kapjen e t\u00eb dh\u00ebnave t\u00eb ndjeshme. <\/p>\n

Ve\u00e7oria e Simbiote \u00ebsht\u00eb shp\u00ebrndarja n\u00eb form\u00ebn e nj\u00eb biblioteke t\u00eb ndar\u00eb, e cila ngarkohet gjat\u00eb iniciimit t\u00eb t\u00eb gjitha proceseve p\u00ebrmes mekanizmit LD_PRELOAD dhe z\u00ebvend\u00ebson disa thirrje t\u00eb bibliotek\u00ebs standarde. Menaxher\u00ebt e thirrjeve t\u00eb z\u00ebvend\u00ebsuara fshehin aktivitetin e lidhur me backdoor-in, p\u00ebr shembull, p\u00ebrjashtojn\u00eb elemente t\u00eb ve\u00e7anta nga lista e proceseve, bllokojn\u00eb aksesin n\u00eb disa skedar\u00eb n\u00eb \/proc, fshehin skedar\u00ebt n\u00eb katalog\u00eb, p\u00ebrjashtojn\u00eb biblioteken e ndar\u00eb malware nga rezultati i ldd (duke interceptuar funksionin execve dhe duke analizuar thirrjet me variablin e mjedisit LD_TRACE_LOADED_OBJECTS), nuk tregojn\u00eb soket\u00ebt e rrjetit t\u00eb lidhur me aktivitetin malware. <\/p>\n

P\u00ebr t\u00eb mbrojtur nga inspektimi i trafik\u00ebve, ndodh rishkrimi i funksioneve t\u00eb bibliotek\u00ebs libpcap, filtrimi i leximit t\u00eb \/proc\/net\/tcp dhe ngarkimi n\u00eb b\u00ebrtham\u00eb i programeve eBPF, t\u00eb cilat parandalojn\u00eb funksionimin e analizator\u00ebve t\u00eb trafik\u00ebve dhe p\u00ebrjashtojn\u00eb k\u00ebrkesat e jashtme ndaj menaxher\u00ebve t\u00eb tyre t\u00eb rrjetit. Programi eBPF ekzekutohet nd\u00ebr t\u00eb par\u00ebt dhe paraqitet n\u00eb nivelin m\u00eb t\u00eb ul\u00ebt t\u00eb stack-ut t\u00eb rrjetit, gj\u00eb q\u00eb lejon fshehjen e aktivitetit t\u00eb rrjetit t\u00eb backdoor-it, p\u00ebrfshir\u00eb nga analizator\u00ebt q\u00eb ekzekutohen m\u00eb von\u00eb. <\/p>\n

Simbiote gjithashtu lejon shmangien e disa analizuesve t\u00eb aktivitetit n\u00eb sistemin e skedar\u00ebve, pasi vjedhja e t\u00eb dh\u00ebnave t\u00eb ndjeshme mund t\u00eb realizohet jo n\u00eb nivelin e hapjes s\u00eb skedar\u00ebve, por p\u00ebrmes kapjes s\u00eb operacioneve t\u00eb leximit nga k\u00ebta skedar\u00eb n\u00eb aplikacione legjitime (p.sh., z\u00ebvend\u00ebsimi i funksioneve t\u00eb bibliotek\u00ebs lejon kapjen e hyrjes s\u00eb p\u00ebrdoruesit p\u00ebr fjal\u00ebkalimin ose t\u00eb dh\u00ebnat e ngarkuara nga skedari me \u00e7el\u00ebsin e aksesit). P\u00ebr organizimin e qasjes s\u00eb larg\u00ebt, Simbiote kap disa thirrje PAM (Pluggable Authentication Module), q\u00eb lejon lidhjen me sistemin p\u00ebrmes SSH me kredenciale t\u00eb caktuara sulmuese. Gjithashtu, parashikohet nj\u00eb mund\u00ebsi e fsheht\u00eb p\u00ebr t\u00eb rritur privilegjet e tij n\u00eb p\u00ebrdoruesin root p\u00ebrmes vendosjes s\u00eb variabl\u00ebs s\u00eb mjedisit HTTP_SETTHIS.

\"Simbiote<\/center>
\n
Burimi: 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\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0439 Intezer \u0438 BlackBerry \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0438\u043b\u0438 \u0432\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u043e\u0435 \u041f\u041e, \u043f\u043e\u043b\u0443\u0447\u0438\u0432\u0448\u0435\u0435 \u043a\u043e\u0434\u043e\u0432\u043e\u0435 \u0438\u043c\u044f Simbiote \u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0435 \u0434\u043b\u044f \u0432\u043d\u0435\u0434\u0440\u0435\u043d\u0438\u044f \u0431\u044d\u043a\u0434\u043e\u0440\u043e\u0432 \u0438 rootkit-\u043e\u0432 \u043d\u0430 \u0441\u043a\u043e\u043c\u043f\u0440\u043e\u043c\u0435\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u0441\u0435\u0440\u0432\u0435\u0440\u044b, \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0438\u0445 \u043f\u043e\u0434 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435\u043c Linux. \u0412\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u043e\u0435 \u041f\u041e \u0431\u044b\u043b\u043e \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e \u043d\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0444\u0438\u043d\u0430\u043d\u0441\u043e\u0432\u044b\u0445 \u0443\u0447\u0440\u0435\u0436\u0434\u0435\u043d\u0438\u0439 \u0440\u044f\u0434\u0430 \u0441\u0442\u0440\u0430\u043d \u041b\u0430\u0442\u0438\u043d\u0441\u043a\u043e\u0439 \u0410\u043c\u0435\u0440\u0438\u043a\u0438. \u0414\u043b\u044f \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 Simbiote \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u0439 \u0434\u043e\u043b\u0436\u0435\u043d \u0438\u043c\u0435\u0442\u044c root-\u0434\u043e\u0441\u0442\u0443\u043f, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u043f\u043e\u043b\u0443\u0447\u0435\u043d, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":104341,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-104340","post","type-post","status-publish","format-standard","has-post-thumbnail","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\udd47Simbiote \u2014 malware p\u00ebr Linux, q\u00eb p\u00ebrdor eBPF dhe LD_PRELOAD p\u00ebr t\u00eb fshehur | ProHoster","description":"Hulumtuesit nga kompanit\u00eb Intezer dhe BlackBerry zbuluan malware me emrin kodor Simbiote, q\u00eb p\u00ebrdoret p\u00ebr t\u00eb futur backdoor dhe rootkit n\u00eb server\u00ebt e komprometuar, q\u00eb 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