{"id":184006,"date":"2026-10-26T23:40:43","date_gmt":"2026-10-26T21:40:43","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/ataka-na-ai-agenty-cherez-razmeshhenie-fajla-agents-md-v-kataloge-s-zagruzkami"},"modified":"2026-10-26T23:40:47","modified_gmt":"2026-10-26T21:40:47","slug":"attacking-ai-agents-by-placing-an-agents-md-file-in-the-downloads-directory","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/attacking-ai-agents-by-placing-an-agents-md-file-in-the-downloads-directory","title":{"rendered":"\u00datok na AI agentov prostredn\u00edctvom umiestnenia s\u00faboru AGENTS.md v adres\u00e1ri na s\u0165ahovanie","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V\u00fdskumn\u00edci z firmy Forever Security, analyzuj\u00fac pr\u00ed\u010diny v\u00fdskytu malware v syst\u00e9me jedn\u00e9ho z klientov, odhalili nov\u00fd sp\u00f4sob \u00fatoku na AI agentov, ktor\u00fd je zalo\u017een\u00fd na tom, \u017ee mnoh\u00ed AI agenti predvolene spracov\u00e1vaj\u00fa pokyny z s\u00faboru AGENTS.md umiestnen\u00e9ho v kore\u0148ovom adres\u00e1ri projektu, na ktorom pracuj\u00fa. \u00datok sa uskuto\u010d\u0148uje umiestnen\u00edm s\u00faboru AGENTS.md alebo CLAUDE.md do adres\u00e1ra ~\\\/Downloads s pokynmi na in\u0161tal\u00e1ciu malware (v prejedn\u00e1vanom pr\u00edpade bol in\u0161talovan\u00fd malware npm bal\u00ed\u010dek \u201efunction-color\u201c). <\/p>\n

Identifikovan\u00e1 aktivita je variantou zn\u00e1mej met\u00f3dy \u00fatoku na v\u00fdvoj\u00e1rov softv\u00e9ru, pri ktorej \u00fato\u010dn\u00edk vytvor\u00ed repozit\u00e1r s leg\u00e1lnym k\u00f3dom a umiestni do\u0148 s\u00fabor AGENTS.md alebo tento s\u00fabor predlo\u017e\u00ed ako s\u00fa\u010das\u0165 pull-requestov alebo chybov\u00fdch hl\u00e1sen\u00ed v existuj\u00facich projektoch. V pr\u00edpade, \u017ee niekto sa rozhodne pou\u017ei\u0165 AI agenta na kontrolu navrhovan\u00e9ho repozit\u00e1ra alebo zmeny, agent spracuje pokyny z s\u00faboru AGENTS.md, v ktorom m\u00f4\u017eu by\u0165 predp\u00edsan\u00e9 vykonanie \u0161kodliv\u00fdch akci\u00ed.<\/p>\n

Nov\u00e1 varianta \u00fatoku je zalo\u017een\u00e1 na tom, \u017ee Chrome, Firefox a Edge predvolene ne\u017eiadaj\u00fa o potvrdenie pri s\u0165ahovan\u00ed s\u00faboru, iba zobrazuj\u00fa ozn\u00e1menie. S\u0165ahovan\u00e9 s\u00fabory automaticky ukladaj\u00fa do adres\u00e1ra ~\\\/Downloads \u2014 na s\u0165ahovanie sta\u010d\u00ed, ak pou\u017e\u00edvate\u013e otvor\u00ed ur\u010dit\u00fa str\u00e1nku alebo prejde cez odkaz (odkaz m\u00f4\u017ee vyzera\u0165 nevinne a presmerovanie na s\u0165ahovanie m\u00f4\u017ee by\u0165 vykonan\u00e9 cez redirect). Takto \u00fato\u010dn\u00edci dosiahnu ulo\u017eenie s\u00faboru AGENTS.md v adres\u00e1ri s\u0165ahovania na syst\u00e9moch pou\u017e\u00edvate\u013eov, po \u010dom \u010dakaj\u00fa, k\u00fdm pou\u017e\u00edvate\u013e spust\u00ed AI agenta v kontexte adres\u00e1ra ~\\\/Downloads, napr\u00edklad na anal\u00fdzu nejak\u00fdch stiahnut\u00fdch dokumentov.<\/p>\n

Okrem pou\u017eitia AGENTS.md na informovanie AI agentov o pou\u017eit\u00fdch n\u00e1strojoch, po\u017eadovan\u00fdch z\u00e1vislostiach a vykon\u00e1van\u00fdch testoch, cez tak\u00e9to s\u00fabory je mo\u017en\u00e9 dosiahnu\u0165 vykonanie \u013eubovo\u013en\u00fdch programov, in\u0161tal\u00e1ciu tret\u00edch str\u00e1n a zmenu konfigur\u00e1cie. Mo\u017enos\u0165 vykonania \u00fatoku bola demon\u0161trovan\u00e1 pre AI agentov Codex a Claude Code. <\/p>\n

Vedci vykonali dva experimenty, v ktor\u00fdch sa im podarilo z\u00edska\u0165 kontrolu nad pou\u017e\u00edvate\u013esk\u00fdm \u00fa\u010dtom a zachyti\u0165 jeho OAuth tokeny. Po\u010das prv\u00e9ho experimentu AI agent Codex splnil pokyny na na\u010d\u00edtanie a spustenie testovacieho \u0161kodliv\u00e9ho k\u00f3du na syst\u00e9me pou\u017e\u00edvate\u013ea, ktor\u00fd obmedzoval iba otvorenie kalkula\u010dky. V druhom experimente prostredn\u00edctvom substit\u00facie s\u00faboru CLAUDE.md vedci pomocou Claude Code zmenili obsah premennej prostredia ANTHROPIC_BASE_URL a zabezpe\u010dili presmerovanie po\u017eiadaviek na API na svoj. server<\/a> a zachytili token OAuth. Prv\u00fd experiment bol \u00faspe\u0161n\u00fd v 90% pokusov, a druh\u00fd \u2014 v 50%.<\/p>\n


\n
\r\n \"Prehrajte\r\n
<\/div>\r\n <\/div><\/center>
\n
Zdroj: 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\u0438 Forever Security, \u0440\u0430\u0437\u0431\u0438\u0440\u0430\u044f \u043f\u0440\u0438\u0447\u0438\u043d\u044b \u043f\u043e\u044f\u0432\u043b\u0435\u043d\u0438\u044f \u0432\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u043e\u0433\u043e \u041f\u041e \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u043e\u0434\u043d\u043e\u0433\u043e \u0438\u0437 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432, \u0432\u044b\u044f\u0432\u0438\u043b\u0438 \u043d\u043e\u0432\u044b\u0439 \u0441\u043f\u043e\u0441\u043e\u0431 \u0430\u0442\u0430\u043a\u0438 \u043d\u0430 AI-\u0430\u0433\u0435\u043d\u0442\u043e\u0432, \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u043d\u0430 \u0442\u043e\u043c, \u0447\u0442\u043e \u043c\u043d\u043e\u0433\u0438\u0435 AI-\u0430\u0433\u0435\u043d\u0442\u044b \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u044e\u0442 \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438 \u0438\u0437 \u0444\u0430\u0439\u043b\u0430 AGENTS.md, \u0440\u0430\u0437\u043c\u0435\u0449\u0451\u043d\u043d\u043e\u0433\u043e \u0432 \u043a\u043e\u0440\u043d\u0435 \u043f\u0440\u043e\u0435\u043a\u0442\u0430, \u043a \u0440\u0430\u0431\u043e\u0442\u0435 \u043d\u0430\u0434 \u043a\u043e\u0442\u043e\u0440\u044b\u043c \u043e\u043d\u0438 \u043f\u0440\u0438\u0432\u043b\u0435\u0447\u0435\u043d\u044b. \u0410\u0442\u0430\u043a\u0430 \u043f\u0440\u043e\u0432\u043e\u0434\u0438\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0437 \u0440\u0430\u0437\u043c\u0435\u0449\u0435\u043d\u0438\u0435 \u0432 \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0435 ~\/Downloads \u0444\u0430\u0439\u043b\u0430 AGENTS.md \u0438\u043b\u0438 CLAUDE.md 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