{"id":328,"date":"2022-07-03T14:26:10","date_gmt":"2022-07-03T14:26:10","guid":{"rendered":"https:\/\/securitybriefing.net\/?p=328"},"modified":"2022-07-03T14:26:10","modified_gmt":"2022-07-03T14:26:10","slug":"microsoft-canh-bao-nguoi-dung-android-ve-cac-ung-dung-malware-lua-dao-phi-dang-phat-trien","status":"publish","type":"post","link":"https:\/\/securitybriefing.net\/vi\/tin-tuc\/microsoft-canh-bao-nguoi-dung-android-ve-cac-ung-dung-malware-lua-dao-phi-dang-phat-trien\/","title":{"rendered":"Microsoft c\u1ea3nh b\u00e1o ng\u01b0\u1eddi d\u00f9ng \u0111i\u1ec7n tho\u1ea1i Android v\u1ec1 c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i l\u1eeba \u0111\u1ea3o thu ph\u00ed \u0111ang ph\u00e1t tri\u1ec3n"},"content":{"rendered":"

N\u1ebfu b\u1ea1n l\u00e0 ng\u01b0\u1eddi d\u00f9ng \u0111i\u1ec7n tho\u1ea1i Android, Microsoft c\u1ea3nh b\u00e1o b\u1ea1n: h\u00e3y c\u1ea9n th\u1eadn v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i gian l\u1eadn c\u01b0\u1edbc ph\u00ed. C\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y ng\u00e0y c\u00e0ng ph\u1ee9c t\u1ea1p v\u00e0 kh\u00f3 ph\u00e1t hi\u1ec7n h\u01a1n, c\u00f3 \u00fd \u0111\u1ecbnh \u0111\u00e1nh c\u1eafp ti\u1ec1n c\u1ee7a b\u1ea1n b\u1eb1ng c\u00e1ch t\u00ednh ph\u00ed \u0111\u0103ng k\u00fd \u1ea9n. Microsoft \u0111\u00e3 ph\u00e1c th\u1ea3o c\u00e1c b\u01b0\u1edbc c\u1ee7a cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u1ed9c h\u1ea1i n\u00e0y trong m\u1ed9t b\u00e0i \u0111\u0103ng tr\u00ean blog \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c c\u00e1c m\u1ed1i nguy hi\u1ec3m v\u00e0 t\u1ef1 b\u1ea3o v\u1ec7 m\u00ecnh.<\/span><\/p>\n

Gian l\u1eadn c\u01b0\u1edbc ph\u00ed, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 "virus freemium" ho\u1eb7c "trapware", l\u00e0 m\u1ed9t h\u00ecnh th\u1ee9c gian l\u1eadn thanh to\u00e1n trong \u0111\u00f3 nh\u1eefng ng\u01b0\u1eddi kh\u00f4ng nghi ng\u1edd b\u1ecb d\u1ee5 tr\u1ea3 ti\u1ec1n cho n\u1ed9i dung cao c\u1ea5p m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 hi\u1ec3u bi\u1ebft ho\u1eb7c \u0111\u1ed3ng \u00fd c\u1ee7a h\u1ecd. N\u00f3 kh\u00e1c v\u1edbi c\u00e1c m\u1ed1i nguy hi\u1ec3m kh\u00e1c c\u1ee7a fleeceware \u1edf ch\u1ed7 c\u00e1c t\u00ednh n\u0103ng c\u00f3 h\u1ea1i ch\u1ec9 \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t khi tin t\u1eb7c li\u00ean k\u1ebft m\u1ed9t ti\u1ec7n \u00edch v\u1edbi m\u1ed9t trong nh\u1eefng nh\u00e0 \u0111i\u1ec1u h\u00e0nh m\u1ea1ng m\u1ee5c ti\u00eau c\u1ee7a n\u00f3.<\/span><\/p>\n

H\u01a1n n\u1eefa, theo\u00a0<\/span>Valsamaras v\u00e0 Shin Jung<\/span><\/a>\u00a0c\u1ee7a Nh\u00f3m nghi\u00ean c\u1ee9u Microsoft 365 Defender, ng\u01b0\u1eddi ta \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng theo m\u1eb7c \u0111\u1ecbnh, n\u00f3 k\u1ebft n\u1ed1i v\u1edbi m\u1ea1ng di \u0111\u1ed9ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c ho\u1ea1t \u0111\u1ed9ng ngay c\u1ea3 khi c\u00f3 th\u1ec3 truy c\u1eadp k\u1ebft n\u1ed1i Wi-Fi. "N\u00f3 th\u1ef1c hi\u1ec7n nh\u01b0 v\u1eady theo m\u1eb7c \u0111\u1ecbnh", h\u1ecd tuy\u00ean b\u1ed1.<\/span><\/p>\n

Sau \u0111\u00f3, n\u00f3 t\u1ea1o m\u1ed9t \u0111\u0103ng k\u00fd gi\u1ea3 m\u1ea1o v\u00e0 x\u00e1c nh\u1eadn l\u1ea1i sau khi thi\u1ebft l\u1eadp li\u00ean k\u1ebft \u0111\u1ebfn m\u1ed9t m\u1ea1ng c\u1ee5 th\u1ec3.<\/span><\/p>\n

Phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t c\u1ee7a n\u1ec1n t\u1ea3ng Magento s\u1eed d\u1ee5ng nhi\u1ec1u gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt c\u1ee7a b\u00ean th\u1ee9 ba v\u00e0 n\u1ed9i b\u1ed9 \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i gian l\u1eadn tr\u1ef1c tuy\u1ebfn b\u1eb1ng nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p, bao g\u1ed3m:<\/span><\/p>\n

Gian l\u1eadn c\u01b0\u1edbc ph\u00ed x\u1ea3y ra khi ng\u01b0\u1eddi ti\u00eau d\u00f9ng s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 tr\u1ea3 ph\u00ed h\u1ee3p ph\u00e1p do trang web h\u1ed7 tr\u1ee3 WAP cung c\u1ea5p \u0111\u1ec3 mua c\u00e1c m\u1eb7t h\u00e0ng ho\u1eb7c d\u1ecbch v\u1ee5 m\u00e0 nh\u00e0 cung c\u1ea5p kh\u00f4ng cho ph\u00e9p. H\u00f3a \u0111\u01a1n \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng c\u1ee7a kh\u00e1ch h\u00e0ng \u0111\u01b0\u1ee3c t\u1ef1 \u0111\u1ed9ng t\u00ednh ph\u00ed, thay v\u00ec ph\u1ea3i t\u1ea1o th\u1ebb t\u00edn d\u1ee5ng ho\u1eb7c th\u1ebb ghi n\u1ee3 ho\u1eb7c cung c\u1ea5p t\u00ean ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u1eadt kh\u1ea9u.<\/span><\/p>\n

Theo\u00a0<\/span>Kaspersky<\/span><\/a>, tin t\u1eb7c c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1ecba ch\u1ec9 IP c\u1ee7a trojan thanh to\u00e1n WAP n\u1ebfu ng\u01b0\u1eddi d\u00f9ng k\u1ebft n\u1ed1i v\u1edbi internet b\u1eb1ng d\u1eef li\u1ec7u di \u0111\u1ed9ng. "Ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 b\u1ecb t\u00ednh ph\u00ed n\u1ebfu h\u1ecd \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c, \u0111i\u1ec1u n\u00e0y x\u1ea3y ra r\u1ea5t d\u1ec5 d\u00e0ng", theo m\u1ed9t nghi\u00ean c\u1ee9u n\u0103m 2017 c\u1ee7a Kaspersky v\u1ec1 trojan thanh to\u00e1n WAP.<\/span><\/p>\n

M\u1ed9t s\u1ed1 c\u00f4ng ty c\u00f3 th\u1ec3 y\u00eau c\u1ea7u OTP l\u00e0m c\u1ea5p \u0111\u1ed9 x\u00e1c minh th\u1ee9 hai tr\u01b0\u1edbc khi h\u1ecd b\u1eadt d\u1ecbch v\u1ee5.<\/span><\/p>\n

Ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i ch\u1ea1y \u0111\u0103ng k\u00fd thay m\u1eb7t cho ng\u01b0\u1eddi d\u00f9ng theo c\u00e1ch c\u00f3 v\u1ebb nh\u01b0 l\u00e0 ch\u00ednh h\u00e3ng. Ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i s\u1ebd giao ti\u1ebfp v\u1edbi m\u00e1y ch\u1ee7 [command-and-control] \u0111\u1ec3 l\u1ea5y danh s\u00e1ch c\u00e1c d\u1ecbch v\u1ee5 kh\u1ea3 d\u1ee5ng.<\/span><\/p>\n

Ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i t\u1ea3i xu\u1ed1ng m\u1ed9t s\u1ed1 t\u1ec7p t\u1eeb trang web b\u1ecb x\u00e2m nh\u1eadp, bao g\u1ed3m AdNab.exe v\u00e0 rundll32.exe. Sau \u0111\u00f3, n\u00f3 s\u1eed d\u1ee5ng JavaScript \u0111\u1ec3 b\u00ed m\u1eadt \u0111\u0103ng k\u00fd d\u1ecbch v\u1ee5 v\u00e0 nh\u1eadn v\u00e0 g\u1eedi m\u00e3 OTP (n\u1ebfu c\u1ea7n). C\u00e1c l\u1eadp tr\u00ecnh vi\u00ean \u0111\u00e3 thi\u1ebft k\u1ebf m\u00e3 JavaScript \u0111\u1ec3 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn theo ch\u01b0\u01a1ng tr\u00ecnh \u0111\u1ec3 b\u1eaft \u0111\u1ea7u \u0111\u0103ng k\u00fd b\u1eb1ng c\u00e1ch ki\u1ec3m so\u00e1t c\u00e1c th\u00e0nh ph\u1ea7n HTML c\u00f3 ch\u1ee9a c\u00e1c t\u1eeb kh\u00f3a nh\u01b0 "x\u00e1c nh\u1eadn", "nh\u1ea5p" ho\u1eb7c "ti\u1ebfp t\u1ee5c".<\/span><\/p>\n

Ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i c\u00f3 th\u1ec3 x\u00f3a tin nh\u1eafn v\u0103n b\u1ea3n \u0111\u1ebfn c\u00f3 ch\u1ee9a th\u00f4ng tin v\u1ec1 d\u1ecbch v\u1ee5 \u0111\u00e3 \u0111\u0103ng k\u00fd t\u1eeb nh\u00e0 m\u1ea1ng di \u0111\u1ed9ng n\u1ebfu \u0111\u0103ng k\u00fd gian l\u1eadn th\u00e0nh c\u00f4ng.<\/span><\/p>\n

Kh\u1ea3 n\u0103ng t\u1ea3i m\u00e3 \u0111\u1ed9ng c\u1ee7a Android, cho ph\u00e9p c\u00e1c \u1ee9ng d\u1ee5ng t\u1ea3i xu\u1ed1ng c\u00e1c m\u00f4-\u0111un b\u1ed5 sung t\u1eeb m\u00e1y ch\u1ee7 t\u1eeb xa trong th\u1eddi gian ch\u1ea1y, gi\u00fap nh\u1eefng c\u00e1 nh\u00e2n m\u1edd \u00e1m d\u1ec5 d\u00e0ng l\u1ee3i d\u1ee5ng h\u1ec7 th\u1ed1ng.<\/span><\/p>\n

Ng\u01b0\u1eddi vi\u1ebft ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i c\u00f3 th\u1ec3 t\u1ea1o ra m\u1ed9t \u1ee9ng d\u1ee5ng c\u00f3 h\u00e0nh vi x\u1ea5u. Nh\u01b0ng h\u00e0nh vi x\u1ea5u ch\u1ec9 x\u1ea3y ra n\u1ebfu \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c c\u00e1c tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3. V\u00ec v\u1eady, s\u1ebd r\u1ea5t kh\u00f3 \u0111\u1ec3 t\u00ecm ra h\u00e0nh vi x\u1ea5u n\u00e0y b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c ki\u1ec3m tra ph\u00e2n t\u00edch m\u00e3 t\u0129nh v\u1ec1 m\u1eb7t b\u1ea3o m\u1eadt.<\/span><\/p>\n

Ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i c\u1eeda sau l\u00e0 ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t th\u00f4ng qua \u1ee9ng d\u1ee5ng v\u00e0 t\u1ea1o ra m\u00e3 \u0111\u01b0\u1ee3c t\u1ea1o \u0111\u1ed9ng \u0111\u1ec3 l\u1ea5y c\u1eafp tin nh\u1eafn v\u0103n b\u1ea3n, nh\u01b0 \u0111\u00e3 n\u00eau trong\u00a0<\/span>T\u00e0i li\u1ec7u d\u00e0nh cho nh\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a Google<\/span><\/a>\u00a0cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y h\u1ea1i (PHA).<\/span><\/p>\n

Thu ph\u00ed \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ng\u00e0nh kinh doanh b\u00e9o b\u1edf \u0111\u1ed1i v\u1edbi tin t\u1eb7c, v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng gian l\u1eadn chi\u1ebfm 34,8 ph\u1ea7n tr\u0103m t\u1ed5ng s\u1ed1 PHA \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp th\u00f4ng qua th\u1ecb tr\u01b0\u1eddng \u1ee9ng d\u1ee5ng Android trong ba th\u00e1ng \u0111\u1ea7u n\u0103m 2022, \u0111\u1ee9ng th\u1ee9 hai ngay sau ph\u1ea7n m\u1ec1m gi\u00e1n \u0111i\u1ec7p. H\u1ea7u h\u1ebft c\u00e1c c\u00e0i \u0111\u1eb7t \u0111\u01b0\u1ee3c ch\u1ee9ng ki\u1ebfn \u1edf \u1ea4n \u0110\u1ed9, Nga, Mexico, Indonesia v\u00e0 Th\u1ed5 Nh\u0129 K\u1ef3.<\/span><\/p>\n

N\u1ebfu b\u1ea1n mu\u1ed1n tr\u00e1nh tr\u1edf th\u00e0nh n\u1ea1n nh\u00e2n c\u1ee7a ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i l\u1eeba \u0111\u1ea3o c\u01b0\u1edbc ph\u00ed, h\u00e3y l\u00e0m theo h\u01b0\u1edbng d\u1eabn \u0111\u01b0\u1ee3c n\u00eau trong b\u00e0i vi\u1ebft tr\u00ean blog n\u00e0y. Ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 n\u00ean t\u1ea3i \u1ee9ng d\u1ee5ng t\u1eeb C\u1eeda h\u00e0ng Google Play ho\u1eb7c c\u00e1c ngu\u1ed3n h\u1ee3p ph\u00e1p kh\u00e1c. H\u1ecd n\u00ean h\u1ea1n ch\u1ebf quy\u1ec1n \u1ee9ng d\u1ee5ng v\u00e0 c\u00e2n nh\u1eafc thay th\u1ebf \u0111i\u1ec7n tho\u1ea1i n\u1ebfu \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c b\u1ea3n c\u1eadp nh\u1eadt.<\/span><\/p>","protected":false},"excerpt":{"rendered":"

N\u1ebfu b\u1ea1n l\u00e0 ng\u01b0\u1eddi d\u00f9ng \u0111i\u1ec7n tho\u1ea1i Android, Microsoft c\u1ea3nh b\u00e1o b\u1ea1n: h\u00e3y c\u1ea9n th\u1eadn v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i l\u1eeba \u0111\u1ea3o c\u01b0\u1edbc ph\u00ed. C\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y ng\u00e0y c\u00e0ng ph\u1ee9c t\u1ea1p v\u00e0 kh\u00f3 ph\u00e1t hi\u1ec7n h\u01a1n, c\u00f3 \u00fd \u0111\u1ecbnh \u0111\u00e1nh c\u1eafp\u2026 Ti\u1ebfp t\u1ee5c \u0111\u1ecdc Microsoft c\u1ea3nh b\u00e1o ng\u01b0\u1eddi d\u00f9ng \u0111i\u1ec7n tho\u1ea1i Android v\u1ec1 c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i l\u1eeba \u0111\u1ea3o thu ph\u00ed \u0111ang ph\u00e1t tri\u1ec3n<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":329,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"class_list":["post-328","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","entry"],"yoast_head":"\nMicrosoft Warns Android Phone Users of Evolving Toll Fraud Malware Apps | Security Briefing<\/title>\n<meta name=\"description\" content=\"Watch out for toll fraud malware apps. These apps have become more complex and harder to detect, intending to steal your money by charging you hidden subscription fees.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/securitybriefing.net\/vi\/tin-tuc\/microsoft-canh-bao-nguoi-dung-android-ve-cac-ung-dung-malware-lua-dao-phi-dang-phat-trien\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Microsoft Warns Android Phone Users of Evolving Toll Fraud Malware Apps | Security Briefing\" \/>\n<meta property=\"og:description\" content=\"Watch out for toll fraud malware apps. 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