{"id":1813,"date":"2022-03-29T15:19:00","date_gmt":"2022-03-29T07:19:00","guid":{"rendered":"https:\/\/blog.billows.com.tw\/?p=1813"},"modified":"2022-03-29T15:19:01","modified_gmt":"2022-03-29T07:19:01","slug":"%e9%a7%ad%e5%ae%a2%e5%8a%ab%e6%8c%81%e6%9c%aa%e4%bf%ae%e8%a3%9c%e7%9a%84-exchange%e4%bc%ba%e6%9c%8d%e5%99%a8%e4%b8%8a%e7%9a%84%e9%9b%bb%e9%83%b5%ef%bc%8c%e6%a4%8d%e5%85%a5%e6%83%a1%e6%84%8f%e7%9a%84","status":"publish","type":"post","link":"https:\/\/blog.billows.com.tw\/?p=1813","title":{"rendered":"\u99ed\u5ba2\u52ab\u6301\u672a\u4fee\u88dc\u7684 Exchange\u4f3a\u670d\u5668\u4e0a\u7684\u96fb\u90f5\uff0c\u690d\u5165\u60e1\u610f\u7684\u56de\u8986\u5167\u5bb9\u4f86\u50b3\u64ad\u60e1\u610f\u8edf\u9ad4IcedID"},"content":{"rendered":"\n<p>\u7814\u7a76\u4eba\u54e1\u767c\u73fe\u4e86\u4e00\u500b\u65b0\u7684\u91e3\u9b5a\u90f5\u4ef6\u6d3b\u52d5\uff0c\u8a72\u6d3b\u52d5\u65e8\u5728\u52ab\u6301\u7684\u96fb\u5b50\u90f5\u4ef6\u7684\u56de\u8986\u5167\u5bb9 (Email Thread Hijacking) \u4e26\u690d\u5165\u96e3\u4ee5\u767c\u73fe\u7684\u60e1\u610fpayload\uff0c\u7784\u6e96\u672a\u4fee\u88dc\u548c\u66b4\u9732\u7db2\u8def\u4e0aMicrosoft Exchange\u4f3a\u670d\u5668\uff0c\u5c07\u7528\u65bc\u8cc7\u6599\u7aca\u53d6\u7684IcedID\u60e1\u610f\u8edf\u9ad4\u50b3\u9001\u5230\u53d7\u611f\u67d3\u7684\u6a5f\u5668\u4e0a\u3002<\/p>\n\n\n\n<p>IcedID \u662f\u4e00\u7a2e\u6a21\u7d44\u5316\u9280\u884c\u6728\u99ac\uff0c\u65bc 2017 \u5e74\u9996\u6b21\u88ab\u767c\u73fe\uff0c\u5df2\u767c\u5c55\u6210\u70ba\u99ed\u5ba2\u5efa\u7acb\u5207\u5165\u9ede\uff0c\u7528\u65bc\u90e8\u7f72\u7b2c\u4e8c\u968e\u6bb5\u7684\u60e1\u610f\u8edf\u9ad4\uff0c\u4f8b\u5982\u52d2\u7d22\u8edf\u9ad4\u6216Cobalt Strike\u5de5\u5177\u3002IcedID\u4f7f\u653b\u64ca\u8005\u80fd\u9023\u63a5\u5230\u9060\u7aef\u4f3a\u670d\u5668\u4e26\u4e0b\u8f09\u4e0b\u4e00\u968e\u6bb5\u7684\u690d\u5165\u7a0b\u5f0f\u548c\u5de5\u5177\uff0c\u4f7f\u99ed\u5ba2\u80fd\u57f7\u884c\u5f8c\u7e8c\u6d3b\u52d5\u4e26\u5728\u53d7\u5f71\u97ff\u7684\u7db2\u8def\u4e2d\u6a6b\u5411\u79fb\u52d5\uff0c\u4ee5\u6295\u653e\u5176\u4ed6\u7684\u60e1\u610f\u8edf\u9ad4\u3002\u6839\u64da\u4ee5\u8272\u5217\u8cc7\u5b89\u516c\u53f8Intezer\u9031\u4e00(3\/28) \u767c\u5e03\u7684<a href=\"https:\/\/www.intezer.com\/blog\/research\/conversation-hijacking-campaign-delivering-icedid\/\">\u5831\u544a<\/a>\uff0c\u6b64\u6b21\u6d3b\u52d5\u91dd\u5c0d\u4ee5\u524d\u7684\u88ab\u76dc\u96fb\u5b50\u90f5\u4ef6\u4e26\u507d\u9020\u56de\u8986\uff0c\u4ee5\u7528\u4f5c\u8aaa\u670d\u6536\u4ef6\u8005\u6253\u958b\u9644\u4ef6\uff0c\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u57283 \u6708\u4e2d\u65ec\u6aa2\u6e2c\u5230\u7684\u6700\u65b0\u4e00\u6ce2\u653b\u64ca\u7784\u6e96\u4e86\u80fd\u6e90\u3001\u91ab\u7642\u4fdd\u5065\u3001\u6cd5\u5f8b\u548c\u88fd\u85e5\u9818\u57df\u7684\u7d44\u7e54\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"865\" height=\"342\" src=\"https:\/\/blog.billows.com.tw\/wp-content\/uploads\/2022\/03\/image-36.png\" alt=\"\" class=\"wp-image-1814\" srcset=\"https:\/\/blog.billows.com.tw\/wp-content\/uploads\/2022\/03\/image-36.png 865w, https:\/\/blog.billows.com.tw\/wp-content\/uploads\/2022\/03\/image-36-300x119.png 300w, https:\/\/blog.billows.com.tw\/wp-content\/uploads\/2022\/03\/image-36-768x304.png 768w\" sizes=\"auto, (max-width: 865px) 100vw, 865px\" \/><figcaption>Photo Credit: Intezer<\/figcaption><\/figure>\n\n\n\n<p><strong>\u653b\u64ca\u662f\u5982\u4f55\u767c\u751f<\/strong><\/p>\n\n\n\n<p>\u64da\u6089\uff0c\u96d6\u7136\u65e9\u671f\u7684 IcedID \u6d3b\u52d5\u5229\u7528<a href=\"https:\/\/www.microsoft.com\/security\/blog\/2021\/04\/09\/investigating-a-unique-form-of-email-delivery-for-icedid-malware\/\">\u7db2\u7ad9\u806f\u7e6b\u8868\u683c<\/a>(Website Contact Form)\u5411\u7d44\u7e54\u767c\u9001\u5e36\u6709\u60e1\u610f\u8edf\u9ad4\u7684\u93c8\u7d50\uff0c\u4f46\u6b64\u6b21\u6d3b\u52d5\u7684\u653b\u64ca\u5728\u6613\u53d7\u653b\u64ca\u7684 Microsoft Exchange\u4f3a\u670d\u5668\u4e0a\u5f9e\u88ab\u52ab\u6301\u7684\u5e33\u865f\u767c\u9001\u8a98\u9a19\u96fb\u5b50\u90f5\u4ef6\uff0c\u9019\u8868\u660e\u793e\u4ea4\u5de5\u7a0b\u653b\u64ca\u7684\u9032\u4e00\u6b65\u767c\u5c55\u3002Intezer\u7684\u7814\u7a76\u4eba\u54e1Joakim Kennedy\u548cRyan Robinson\u8aaa\uff0cpayloads\u4e5f\u5df2\u7d93\u5f9e\u4f7f\u7528Office\u6a94\u8f49\u5411\u4f7f\u7528\u5e36\u6709Windows LNK\u6a94\u548cDLL\u6a94\u7684ISO\u6a94\u6848\uff0c\u4f7f\u7528ISO\u6a94\u6848\u5141\u8a31\u5a01\u8105\u884c\u70ba\u8005\u7e5e\u904eWeb\u6a19\u8a18\u63a7\u5236\uff0c\u5c0e\u81f4\u60e1\u610f\u8edf\u9ad4\u7684\u57f7\u884c\u800c\u4e0d\u6703\u5411\u4f7f\u7528\u8005\u767c\u51fa\u8b66\u544a\u3002<\/p>\n\n\n\n<p>\u7814\u7a76\u4eba\u54e1\u89c0\u5bdf\u5230\u653b\u64ca\u4e2d\u4f7f\u7528\u7684\u91e3\u9b5a\u90f5\u4ef6\u5e36\u6709\u8a98\u9a19\u7684\u8b66\u544a\uff0c\u8b66\u544a\u7528\u6236\u5728\u6700\u8fd1\u7684\u5408\u7d04\u4e2d\u6709\u672a\u8655\u7406\u7684\u4ed8\u6b3e\uff0c\u4e26\u6307\u5411\u9644\u4ef6\u4e2d\u7684\u6cd5\u5f8b\u6587\u4ef6\uff0c\u653b\u64ca\u8005\u5728\u9019\u4e9b\u96fb\u5b50\u90f5\u4ef6\u4e2d\u5229\u7528\u5c0d\u8a71\u52ab\u6301\uff0c\u4f7f\u7528\u5408\u6cd5\u7684\u3001\u53d7\u611f\u67d3\u7684\u96fb\u5b50\u90f5\u4ef6\u4e26\u5c07\u81ea\u5df1\u63d2\u5165\u73fe\u6709\u5c0d\u8a71\u4e2d\uff0c<a>\u4f7f<\/a>\u91e3\u9b5a\u653b\u64ca\u66f4\u5177\u8aaa\u670d\u529b\uff0c\u6700\u7d42\u4f7f\u7528\u6236\u96e3\u4ee5\u6aa2\u6e2c\u5230\u3002<\/p>\n\n\n\n<p>\u64da\u6089\uff0c\u9644\u4ef6\u7684 zip\u5b58\u6a94\u6587\u4ef6\u53d7\u5bc6\u78bc\u4fdd\u8b77\uff0c\u5bc6\u78bc\u5728\u96fb\u5b50\u90f5\u4ef6\u4e2d\u7d66\u51fa\u3002\u5b58\u6a94\u5305\u542b\u4e00\u500b ISO \u6a94\u6848\u3002\u7576\u53d7\u5bb3\u8005\u9ede\u64ca\u8a72\u6a94\u6848\u6642\uff0c\u5b83\u6703\u4f7f\u7528regsvr32.exe\u4f86\u57f7\u884c\u4e00\u500b DLL \u6a94\u6848\uff0c\u7814\u7a76\u4eba\u54e1\u7a31\u9019\u662f\u4e00\u7a2e\u901a\u904e\u5141\u8a31proxy\u57f7\u884c main.dll \u7684\u60e1\u610f\u7a0b\u5f0f\u78bc\u4f86\u5be6\u73fe\u9632\u79a6\u898f\u907f\u7684\u6280\u8853\u3002<\/p>\n\n\n\n<p><strong>\u8ab0\u662f\u65b0\u7684 IcedID<\/strong><strong>\u6d3b\u52d5\u7684\u5e55\u5f8c\u9ed1\u624b\uff1f<\/strong><\/p>\n\n\n\n<p>\u96d6\u7136 Intezer \u6c92\u6709\u5728 IcedID \u6d3b\u52d5\u8207\u7db2\u8def\u72af\u7f6a\u7d44\u7e54TA551 \u7684\u4e4b\u9593\u76f4\u63a5\u806f\u7e6b\u8d77\u4f86\uff0c\u4f46\u5206\u6790\u5831\u544a\u78ba\u5be6\u63d0\u53ca\u5230<a href=\"https:\/\/www.proofpoint.com\/us\/blog\/threat-insight\/first-step-initial-access-leads-ransomware\"> Proofpoint <\/a>\u57282021 \u5e746\u6708\u7684\u4e00\u4efd\u5831\u544a\uff0c\u8a72\u5831\u544a\u5f37\u8abf\u4e86\u7db2\u8def\u72af\u7f6a\u7d44\u7e54 TA577 \u548c TA551 \u50be\u5411\u65bc\u4f7f\u7528 IcedID \u4f5c\u70ba\u5176\u60e1\u610f\u8edf\u9ad4\u3002\u4f46Intezer\u8a8d\u70ba\u9019\u6b21\u7684\u6d3b\u52d5\u7531TA551\u767c\u8d77\uff0c\u56e0\u70ba\u8a72\u7d44\u7e54\u5df2\u77e5\u4ee5DDL\u7684\u4e8c\u9032\u4f4d\u6a94proxy\u548c\u53d7\u5bc6\u78bc\u4fdd\u8b77\u7684ZIP\u6a94\u57f7\u884cregsvr32.exe\u3002<\/p>\n\n\n\n<p>\u7814\u7a76\u4eba\u54e1\u7e3d\u7d50\u8aaa\uff0c\u5c0d\u8a71\u52ab\u6301\u7684\u4f7f\u7528\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u793e\u4ea4\u5de5\u7a0b\u6280\u8853\uff0c\u53ef\u63d0\u9ad8\u7db2\u8def\u91e3\u9b5a\u7684\u6210\u529f\u7387\u3002<\/p>\n\n\n\n<p>\u6709\u95dcIcedID\u7684\u90e8\u5206\u5165\u4fb5\u6307\u6a19(Indicator of compromise -IOCs):<\/p>\n\n\n\n<p>SHA 256:<\/p>\n\n\n\n<p>3542d5179100a7644e0a747139d775dbc8d914245292209bc9038ad2413b3213<\/p>\n\n\n\n<p>698a0348c4bb8fffc806a1f915592b20193229568647807e88a39d2ab81cb4c2<\/p>\n\n\n\n<p>a17e32b43f96c8db69c979865a8732f3784c7c42714197091866473bcfac8250<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7814\u7a76\u4eba\u54e1\u767c\u73fe\u4e86\u4e00\u500b\u65b0\u7684\u91e3\u9b5a\u90f5\u4ef6\u6d3b\u52d5\uff0c\u8a72\u6d3b\u52d5\u65e8\u5728\u52ab\u6301\u7684\u96fb\u5b50\u90f5\u4ef6\u7684\u56de\u8986\u5167\u5bb9 (Email Thread Hijac <a class=\"read-more\" href=\"https:\/\/blog.billows.com.tw\/?p=1813\">READ MORE<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[208,174,207],"class_list":["post-1813","post","type-post","status-publish","format-standard","hentry","category-6","tag-icedid","tag-news","tag-207"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/1813","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1813"}],"version-history":[{"count":1,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/1813\/revisions"}],"predecessor-version":[{"id":1815,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/1813\/revisions\/1815"}],"wp:attachment":[{"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1813"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1813"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}