{"id":1512,"date":"2024-09-06T23:45:53","date_gmt":"2024-09-06T15:45:53","guid":{"rendered":"http:\/\/www.xiaosuigu.top\/?p=1512"},"modified":"2024-09-06T23:45:53","modified_gmt":"2024-09-06T15:45:53","slug":"so%e9%98%b2%e6%8a%a4%e6%89%8b%e6%ae%b5-ollvm","status":"publish","type":"post","link":"https:\/\/www.xiaosuigu.top\/index.php\/2024\/09\/06\/so%e9%98%b2%e6%8a%a4%e6%89%8b%e6%ae%b5-ollvm\/","title":{"rendered":"SO\u9632\u62a4\u624b\u6bb5-ollvm"},"content":{"rendered":"\n

\u5e38\u89c1\u9632\u62a4\u624b\u6bb5<\/h2>\n\n\n\n
\u4e3b\u8981\u529f\u80fd<\/th>\u63cf\u8ff0<\/th><\/tr><\/thead>
SO\u52a0\u58f3<\/td>\u5bf9C\/C++\u6e90\u7801\u7f16\u8bd1\u51fa\u6765\u7684SO\u6587\u4ef6\u8fdb\u884c\u52a0\u58f3\uff0c\u4f7fSO\u6587\u4ef6\u65e0\u6cd5\u6b63\u786e\u53cd\u7f16\u8bd1\u548c\u53cd\u6c47\u7f16\u3002<\/td><\/tr>
SO\u6e90\u7801\u865a\u62df\u5316\u4fdd\u62a4<\/td>\u5c06\u539f\u59cb\u6c47\u7f16\u6307\u4ee4\u7ffb\u8bd1\u4e3a\u81ea\u5b9a\u4e49\u7684\u865a\u62df\u673a\u6307\u4ee4\uff0c\u8df3\u8f6c\u5230\u81ea\u5b9a\u4e49\u7684\u865a\u62df\u673a\u4e2d\u6267\u884c\uff0c\u6bcf\u6b21\u4fdd\u62a4\u751f\u6210\u7684\u865a\u62df\u673a\u6307\u4ee4\u968f\u673a\uff0c\u4e14\u5bf9\u865a\u62df\u673a\u89e3\u91ca\u5668\u518d\u5ea6\u6df7\u6dc6<\/td><\/tr>
SO\u9632\u8c03\u7528<\/td>\u5bf9SO\u6587\u4ef6\u8fdb\u884c\u6388\u6743\u7ed1\u5b9a\uff0c\u9632\u6b62SO\u6587\u4ef6\u88ab\u975e\u6388\u6743\u5e94\u7528\u8c03\u7528\u8fd0\u884c\u3002<\/td><\/tr>
SO Linker<\/td>\u5bf9\u6574\u4e2aSO\u6587\u4ef6\u8fdb\u884c\u52a0\u5bc6\u538b\u7f29\uff0c\u5305\u62ec\u4ee3\u7801\u6bb5\u3001\u7b26\u53f7\u8868\u548c\u5b57\u7b26\u4e32\u7b49\uff0c\u8fd0\u884c\u65f6\u518d\u89e3\u5bc6\u89e3\u538b\u7f29\u5230\u5185\u5b58\uff0c\u4ece\u800c\u6709\u6548\u7684\u9632\u6b62SO\u6570\u636e\u7684\u6cc4\u9732\u3002<\/td><\/tr>
SO\u6e90\u7801\u6df7\u6dc6<\/td>\u5e38\u91cf\u5b57\u7b26\u4e32\u52a0\u5bc6\u3001\u5206\u88c2\u57fa\u672c\u5757\u3001\u7b49\u4ef7\u6307\u4ee4\u66ff\u6362\u3001\u865a\u5047\u63a7\u5236\u6d41\u3001\u63a7\u5236\u6d41\u5e73\u5766\u5316\u3002<\/td><\/tr>
SO\u73af\u5883\u76d1\u6d4b<\/td>\u9632frida\\xposed\\root\u3001\u9632\u52a8\u6001\u8c03\u8bd5\u3001\u9632\u6a21\u62df\u5668\u3001\u9632\u591a\u5f00\u7b49<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

ollvm\u5206\u7c7b<\/h2>\n\n\n\n

\u5c31\u662f\u5c06\u539f\u6765\u7684\u4ee3\u7801\u901a\u8fc7\u4e0b\u9762\u7684\u51e0\u4e2a\u624b\u6bb5\u8fdb\u884c\u6df7\u6dc6\uff0c\u8ba9\u9006\u5411\u96be\u5ea6\u4e0a\u5347\u3002<\/p>\n\n\n\n

\u5206\u7c7b<\/th>\u63cf\u8ff0<\/th><\/tr><\/thead>
\u6307\u4ee4\u66ff\u6362\uff08Instructions Substitution)(Sub)<\/td>\u5c06\u4e00\u6761\u8fd0\u7b97\u6307\u4ee4\u66ff\u6362\u4e3a\u591a\u6761\u7b49\u4ef7\u7684\u8fd0\u7b97\u6307\u4ee4\uff0c\u4f8b\u5982\uff1ay=x+1\u53d8\u4e3ay=x+1+1-1<\/td><\/tr>
\u865a\u5047\u63a7\u5236\u6d41\uff08Bogus Control Flow)(bcf)<\/td>\u901a\u8fc7\u52a0\u5165\u5305\u542b\u4e0d\u900f\u660e\u8c13\u8bcd\u7684\u6761\u4ef6\u8df3\u8f6c\u548c\u4e0d\u53ef\u8fbe\u7684\u57fa\u672c\u5757\uff0c\u6765\u5e72\u6270IDA\u7684\u63a7\u5236\u6d41\u5206\u6790\u548cF5\u53cd\u6c47\u7f16<\/td><\/tr>
\u63a7\u5236\u6d41\u5e73\u5766\u5316(Control Flow Flattening)(Fla)<\/td>\u4e3b\u8981\u901a\u8fc7\u4e00\u4e2a\u4e3b\u5206\u53d1\u5668\u6765\u63a7\u5236\u7a0b\u5e8f\u57fa\u672c\u5757\u7684\u6267\u884c\u6d41\u7a0b\uff0c\u5c06\u6240\u6709\u57fa\u672c\u4ee3\u7801\u653e\u5230\u63a7\u5236\u6d41\u6700\u5e95\u90e8\uff0c\u7136\u540e\u5220\u9664\u539f\u7406\u57fa\u672c\u5757\u4e4b\u95f4\u8df3\u8f6c\u5173\u7cfb\uff0c\u6dfb\u52a0\u6b21\u5206\u53d1\u5668\u6765\u63a7\u5236\u5206\u53d1\u903b\u8f91\uff0c\u7136\u540e\u8fc7\u65b0\u7684\u590d\u6742\u5206\u53d1\u903b\u8f91\u8fd8\u539f\u539f\u6765\u7a0b\u5e8f\u5757\u4e4b\u95f4\u7684\u903b\u8f91\u5173\u7cfb<\/td><\/tr>
\u5b57\u7b26\u4e32\u52a0\u5bc6<\/td>\u7f16\u5199\u4e00\u4e2apass\u5c06\u5176\u4e2d\u7684\u5b57\u7b26\u4e32\u4fe1\u606f\u4f7f\u7528\u4e00\u4e9b\u52a0\u5bc6\u7b97\u6cd5\u8fdb\u884c\u52a0\u5bc6\uff0c\u7136\u540e\u7279\u5b9a\u7684\u65f6\u95f4\u8fdb\u884c\u8fd8\u539f\uff0c\u5e38\u89c1\u7684\u7279\u5f81\uff1adatadiv_decoded<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

ollvm\u5bf9\u6297<\/h2>\n\n\n\n

1.\u7b80\u5355ollvm\u53ef\u4ee5\u901a\u8fc7\u4ea4\u53c9\u5f15\u7528\u5206\u6790
2.angr\u53bb\u9664\u4e0d\u900f\u660e\u8c13\u8bcd
3.Unicorn\/Unidbg\/AndroidNativeEmu\u6a21\u62df\u6267\u884c
4.IDA Trace
5.binary ninja
6.\u540e\u7aef\u7f16\u8bd1\u4f18\u5316
7.frida\u8f85\u52a9\u5206\u6790<\/p>\n\n\n\n

\u4ea4\u5dee\u5f15\u7528\u5206\u6790<\/h3>\n\n\n\n

\u5728ida\u4e2d\u9009\u62e9\u76ee\u6807\u53d8\u91cf\u6309x\u6765\u77e5\u6653\u53d8\u91cf\u7684\u751f\u6210\u4f4d\u7f6e\u548c\u6b65\u9aa4\u7b49<\/p>\n\n\n\n

IDA Trace<\/h3>\n\n\n\n
  1. \u5728\u9700\u8981\u5206\u6790\u7684\u4ee3\u7801\u6bb5\u4e0a\u4e0b\u90fd\u6253\u4e0a\u65ad\u70b9<\/li>
  2. \u5f00\u542fDebugger\u8c03\u8bd5<\/li>
  3. \u65ad\u70b9\u7aef\u4f4f\u540e\u70b9\u51fbDebugger-Tracing-Tracing options<\/li>
  4. \u53d6\u6d88\u52fe\u9009Trace over debugger segments(\u8ddf\u8e2a\u8c03\u8bd5\u5668\u6bb5)<\/li>
  5. Trace text file\u4f4d\u7f6e\u9009\u62e9\u8f93\u51fa\u7684\u8def\u5f84\u548c\u6587\u4ef6\u540d\u79f0<\/li>
  6. \u70b9\u51fb\u786e\u5b9a<\/li>
  7. \u518d\u6b21\u70b9\u51fbDebugger-Tracing<\/li>
  8. \u70b9\u51fbinstruction tracing
    1. Instruction tracing \u8c03\u8bd5\u5668\u5c06\u4e3a\u6bcf\u6761\u6307\u4ee4\u4fdd\u5b58\u6240\u6709\u4fee\u6539\u540e\u7684\u5bc4\u5b58\u5668\u503c\u3002<\/li>
    2. Basic block tracing \u8c03\u8bd5\u5668\u5c06\u4fdd\u5b58\u5230\u8fbe\u4e34\u65f6\u57fa\u672c\u5757\u65ad\u70b9\u7684\u6240\u6709\u5730\u5740\u3002<\/li>
    3. Function tracing \u8c03\u8bd5\u5668\u5c06\u4fdd\u5b58\u53d1\u751f\u51fd\u6570\u8c03\u7528\u6216\u51fd\u6570\u8fd4\u56de\u7684\u6240\u6709\u5730\u5740\u3002<\/li><\/ol><\/li>
    4. \u518d\u70b9\u51fb\u8fd0\u884c\u7b49\u5f85\u6267\u884c\u5b8c\u6210\u5373\u53ef\u5206\u6790\u65e5\u5fd7\u6587\u4ef6<\/li><\/ol>\n\n\n\n

      \u611f\u8c22\uff1a\u3010\u65b0\u63d0\u9192\u3011\u300a\u5b89\u5353\u9006\u5411\u8fd9\u6863\u4e8b\u300b\u5341\u4e8c\u3001\u5927\u4f6c\u5e2e\u6211\u5206\u6790\u4e00\u4e0b – \u300e\u79fb\u52a8\u5b89\u5168\u533a\u300f – \u543e\u7231\u7834\u89e3 – LCG – LSG |\u5b89\u5353\u7834\u89e3|\u75c5\u6bd2\u5206\u6790|www.52pojie.cn<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

      \u5e38\u89c1\u9632\u62a4\u624b\u6bb5 \u4e3b\u8981\u529f\u80fd \u63cf\u8ff0 SO\u52a0\u58f3 \u5bf9C\/C++\u6e90\u7801\u7f16\u8bd1\u51fa\u6765\u7684SO\u6587\u4ef6\u8fdb\u884c\u52a0\u58f3\uff0c\u4f7fSO\u6587\u4ef6\u65e0\u6cd5\u6b63\u786e\u53cd\u7f16\u8bd1\u548c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-1512","post","type-post","status-publish","format-standard","hentry","category-android"],"_links":{"self":[{"href":"https:\/\/www.xiaosuigu.top\/index.php\/wp-json\/wp\/v2\/posts\/1512","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xiaosuigu.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xiaosuigu.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xiaosuigu.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xiaosuigu.top\/index.php\/wp-json\/wp\/v2\/comments?post=1512"}],"version-history":[{"count":0,"href":"https:\/\/www.xiaosuigu.top\/index.php\/wp-json\/wp\/v2\/posts\/1512\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.xiaosuigu.top\/index.php\/wp-json\/wp\/v2\/media?parent=1512"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xiaosuigu.top\/index.php\/wp-json\/wp\/v2\/categories?post=1512"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xiaosuigu.top\/index.php\/wp-json\/wp\/v2\/tags?post=1512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}