{"id":826,"date":"2011-09-23T16:21:48","date_gmt":"2011-09-23T08:21:48","guid":{"rendered":"http:\/\/115.29.108.60\/?p=826"},"modified":"2011-09-26T21:59:41","modified_gmt":"2011-09-26T13:59:41","slug":"%e4%b8%80%e4%b8%aahelloworld","status":"publish","type":"post","link":"http:\/\/115.29.108.60\/?p=826","title":{"rendered":"\u4e00\u4e2aHelloWorld"},"content":{"rendered":"

VS2003 Debug\u914d\u7f6e\u7f16\u8bd1\u4e86\u4e00\u4e2aHelloWorld\u7a0b\u5e8f\uff0c\u4e3b\u8981\u4ee3\u7801\u5982\u4e0b\uff1a
\nint main()
\n{
\n\u00a0printf(“Hello, world!\\n”);
\n\u00a0return 0;
\n}<\/p>\n

\u7528OD\u8c03\u8bd5\u6765\u5b66\u4e60\u4e00\u4e0b\u5b83\u7684\u8fd0\u884c\u673a\u7406\u3002OD\u8f7d\u5165\uff0c\u7a0b\u5e8f\u505c\u5728\u5982\u4e0b\u4f4d\u7f6e\uff1a
\n00411339 > $ \/E9 F2080000\u00a0\u00a0 jmp\u00a0\u00a0\u00a0\u00a0 mainCRTStartup<\/p>\n

\u7528LordPE\u67e5\u770b\u4e0bPE\u6587\u4ef6\uff0c\u53d1\u73b0\u955c\u50cf\u57fa\u5740\uff1a00400000\uff0c\u5165\u53e3\u70b9\uff1a00011339\uff0c00400000+00011339=00411339\u770b\u6765OD\u505c\u5728\u4e86\u5165\u53e3\u70b9\u3002<\/p>\n

\u5165\u53e3\u70b9jmp mainCRTStartup\u4ee5\u53camainCRTStartup\u5f88\u660e\u663e\u662f\u7531\u7f16\u8bd1\u5668\u751f\u6210\u7684\u3002\u5355\u6b65\u8ddf\u8fdbmainCRTStartup\u6216\u8005\u5728IDA\u4e2d\u67e5\u770bmainCRTStartup\u53ef\u4ee5\u770b\u5230\uff0c\u5728\u8c03\u7528\u7528\u6237\u4ee3\u7801\u524d\u540e\u5b83\u90fd\u505a\u4e86\u5f88\u591a\u5de5\u4f5c\u3002
\n\u7528\u6237\u4ee3\u7801\u7684\u8c03\u7528\u70b9\u5982\u4e0b\uff1a
\n.text:00411D9B\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 call\u00a0\u00a0\u00a0 j__main<\/p>\n

j_main\u4e5f\u662f\u7531\u7f16\u8bd1\u5668\u751f\u6210\u7684\u4e00\u5c0f\u6bb5\u5b58\u6839\u4ee3\u7801\uff0c\u5982\u4e0b\uff1a
\n.text:004113BB ; int __cdecl j__main()
\n.text:004113BB j__main\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 proc near
\n.text:004113BB\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 jmp\u00a0\u00a0\u00a0\u00a0 _main
\n.text:004113BB j__main\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 endp<\/p>\n

\u4e3a\u4ec0\u4e48\u4f1a\u8fd9\u6837\uff1f\u5e94\u8be5\u662f\u5e93\u4ee3\u7801\u7684\u6846\u67b6\u662f\u786e\u5b9a\u7684\uff0c\u5df2\u7ecf\u751f\u6210\u4e86obj\uff1flib\uff1for dll\uff1f\u4f46\u662f\u7528\u6237\u4ee3\u7801\u7684\u4f4d\u7f6e\u5728\u94fe\u63a5\u524d\u662f\u4e0d\u786e\u5b9a\u7684\uff08\u56e0\u4e3a\u5728\u4e0d\u540c\u7684obj\u6a21\u5757\uff09\uff0c\u901a\u8fc7\u8fd9\u79cd\u5b58\u6839\u7684\u65b9\u6cd5\u5c31\u80fd\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n

\u5e93\u4ee3\u7801\u548c\u7528\u6237\u4ee3\u7801\u6700\u7ec8\u90fd\u88ab\u94fe\u63a5\u5408\u5e76\u5230\u4e86\u540c\u4e00\u4e2aexe\u6587\u4ef6\u4e2d\uff0c\u5982\u679c\u662fexe\u548cdll\u4e4b\u95f4\u7684\u8c03\u7528\u5173\u7cfb\u53c8\u8be5\u5982\u4f55\u5462\uff1f
\n\u9996\u5148\u5fc5\u987b\u8981\u77e5\u9053\u8981\u4f7f\u7528\u54ea\u4e2adll\u7684\u54ea\u4e2a\u51fd\u6570\uff0c\u7136\u540e\u52a0\u8f7ddll\u83b7\u53d6\u51fd\u6570\u7684\u5730\u5740\uff0c\u6700\u540ecall\u6216\u8005jmp\u5230\u51fd\u6570\u4e2d\u53bb\u3002
\nPE\u7684\u6587\u4ef6\u683c\u5f0f\u5df2\u7ecf\u89e3\u51b3\u4e86\u5982\u4e0a\u95ee\u9898\u3002\u6570\u636e\u76ee\u5f55\u4e2d\u7684\u8f93\u5165\u8868\u76ee\u5f55\u6307\u793a\u4e86\u8981\u4f7f\u7528\u54ea\u4e2adll\u3001\u8be5dll\u4e2d\u6709\u54ea\u4e9b\u5bfc\u51fa\u51fd\u6570\u4ee5\u53ca\u5728\u54ea\u4e2a\u4f4d\u7f6e\u4fdd\u5b58\u8fd9\u4e9b\u5bfc\u51fa\u51fd\u6570\u7684\u5730\u5740\uff08IAT\uff09\u3002<\/p>\n

HelloWorld.exe\u7684\u8f93\u5165\u8868\u5982\u56fe\uff1a<\/p>\n

\"\"<\/a><\/p>\n

\u6ce8\u610f\u5176FirstThunk\u7684RVA\uff1a0002A17C\uff0c\u548c\u6570\u636e\u76ee\u5f55\u7684IAT RVA\u4e00\u81f4\u3002\u6253\u5f00IAT\u4e5f\u53ef\u4ee5\u53d1\u73b0\u5176\u5927\u5c0f\u4e3a4*62\uff08kernel32.dll\u4e2d\u670962\u4e2a\u5bfc\u51fa\u51fd\u6570\uff09\u7528\u4e8e\u4fdd\u5b58\u51fd\u6570\u5730\u5740\u3002Windows Loader\u5728\u52a0\u8f7ddll\u7684\u65f6\u5019\u4f1a\u8d1f\u8d23\u6b63\u786e\u5730\u586b\u5145\u3002<\/p>\n

\u8fd9\u6837\u4e00\u6765\uff0c\u53ef\u4ee5\u8bf4PE\u6587\u4ef6\u5df2\u7ecf\u51c6\u5907\u597d\u4e86\u4e00\u5207\uff0c\u8c03\u7528dll\u53d8\u5f97\u7b80\u5355call or jmp [IAT\u4e2d\u5bf9\u5e94\u51fd\u6570\u7684\u5730\u5740\u7684\u504f\u79fb]\u3002\u4f46\u8fd9\u91cc\u4f9d\u7136\u6709\u4e24\u79cd\u65b9\u5f0f\u53ef\u9009\uff0c\u4e00\u79cd\u662f\u9ad8\u6548\u7387\u7684call []\uff0c\u53e6\u4e00\u79cd\u662f\u4f4e\u6548\u7387\u7684\u5b58\u6839\u65b9\u6cd5\uff08call \u5b58\u6839; \u5b58\u6839: jmp [];\uff09\u3002<\/p>\n

IDA\u4e2d\u53ef\u4ee5\u53d1\u73b0\u7c7b\u4f3c\u5982\u4e0b\u4ee3\u7801\uff1a
\n.text:00411C79\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 call\u00a0\u00a0\u00a0 ds:__imp__GetVersionExA@4 ; GetVersionExA(x)
\n.text:004112D0 ; [00000005 BYTES: COLLAPSED FUNCTION GetVersionExA(x). PRESS KEYPAD “+” TO EXPAND]<\/p>\n

\u5b83\u4eec\u5206\u522b\u5bf9\u5e94\u7740\u524d\u9762\u63d0\u5230\u7684\u4e24\u79cd\u9009\u62e9\uff0c\u53ef\u89c1\u5bf9\u4e00\u4e2a\u5bfc\u51fa\u51fd\u6570\u7684\u8c03\u7528\uff0c\u7f16\u8bd1\u5668\u751f\u6210\u4e86\u4e24\u79cd\u53ef\u9009\u65b9\u6848\uff0c\u53ea\u662fHelloWorld\u4e2d\u6700\u7ec8\u6ca1\u6709\u53d1\u73b0\u6709\u8c03\u7528.text:004112D0\u5904\u7684\u4ee3\u7801\u3002
\n\u867d\u7136\u7f16\u8bd1\u5668\u751f\u6210\u4e86\u4e24\u79cd\u53ef\u9009\u65b9\u6848\uff0c\u4f46\u662f\u53ef\u4ee5\u5bf9\u8f93\u5165\u7684dll\u5bfc\u51fa\u51fd\u6570\u52a0\u4e0a__desclspec(dllexport)\u4fee\u9970\u7b26\uff0c\u5c31\u80fd\u5728\u8c03\u7528\u65f6\u4f7f\u7528\u9ad8\u6548\u7387\u7684\u65b9\u6848\u3002<\/p>\n

main\u4e2d\u7684\u4ee3\u7801\u6ca1\u6709\u4ec0\u4e48\u597d\u89e3\u91ca\u7684\uff0c\u63d0\u4e00\u4e0b\u5728main\u6062\u590d\u5806\u6808\u540e\u5207\u6362\u6808\u5e27\u524d\uff0c\u6709\u5982\u4e0b\u4ee3\u7801\uff1a
\n.text:00411A60\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 add\u00a0\u00a0\u00a0\u00a0 esp, 0C0h
\n.text:00411A66\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 cmp\u00a0\u00a0\u00a0\u00a0 ebp, esp
\n.text:00411A68\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 call\u00a0\u00a0\u00a0 j___RTC_CheckEsp
\n.text:00411A6D\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mov\u00a0\u00a0\u00a0\u00a0 esp, ebp
\n.text:00411A6F\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pop\u00a0\u00a0\u00a0\u00a0 ebp
\n\u5f88\u660e\u663ej___RTC_CheckEsp\u5806\u6808\u5e73\u8861\u68c0\u67e5\uff0c\u4f46\u597d\u50cf\u4e0esecurty cookie\u4e0d\u540c\uff0c\u5e76\u4e0d\u4f1a\u5f71\u54cd\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

VS2003 Debug\u914d\u7f6e\u7f16\u8bd1\u4e86\u4e00\u4e2aHelloWorld\u7a0b\u5e8f\uff0c\u4e3b\u8981\u4ee3\u7801\u5982\u4e0b\uff1a int main() { \u00a0p […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19,20,27],"tags":[],"class_list":["post-826","post","type-post","status-publish","format-standard","hentry","category-assembly","category-cplusplus","category-reverse"],"_links":{"self":[{"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/posts\/826","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/115.29.108.60\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=826"}],"version-history":[{"count":3,"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/posts\/826\/revisions"}],"predecessor-version":[{"id":954,"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/posts\/826\/revisions\/954"}],"wp:attachment":[{"href":"http:\/\/115.29.108.60\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=826"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/115.29.108.60\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=826"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/115.29.108.60\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=826"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}