Q:\u8bf7\u6559OD\u4e2d\uff1aecx\u6307\u5411”abcdefghigklmn”\u8fd9\u4e2a\u5b57\u7b26\u4e32\u7684\u6761\u4ef6\u65ad\u70b9\u5982\u4f55\u4e0b\uff1f
\nA:ecx==”abcdefghigklmn”<\/p>\n
Q:\u6211\u60f3\u65ad\uff1aCreateFileA \u6761\u4ef6\u662f\u6587\u4ef6\u540d\u5b57\u4e3a “abcdefghigklmn”\uff0c\u6211\u5728CreateFileA\u4e0aShift-F4\u6216Shift-F2\u8bbe\u5b9a\u6761\u4ef6\uff0c\u90fd\u4e0d\u8d77\u4f5c\u7528\u3002\u6211\u7528\u7684\u4e0d\u5bf9\uff1f\u80fd\u5426\u8be6\u7ec6\u89e3\u8bf4\u4e00\u4e0b\uff1f\u8c22\u8c22\uff01
\nA:\u5982\u679c\u662fCreateFileA\uff0c\u4f60\u53ef\u4ee5\u5728\u547d\u4ee4\u884c\u4e2d\u8fd9\u6837\u4e0b\u6761\u4ef6\u65ad\u70b9\uff1a
\nbp CreateFileA,[[STRING [esp+4]]]==”abcdefghigklmn”
\n\u82e5\u6309 OllyDBG \u4e2d\u7684\u5e2e\u52a9\u6587\u6863\u4e0a\u8bf4\u7684\uff0c\u5e94\u8be5\u662f
\nbp CreateFileA,[STRING [esp+4]]==”abcdefghigklmn”
\n\u6216
\nbp CreateFileA,[[esp+4]]==”abcdefghigklmn”
\n\u4f46\u6211\u6d4b\u8bd5\u8fc7\u5982\u679c\u6309 OD \u5e2e\u52a9\u6587\u6863\u4e2d\u6240\u8bf4\u7684\u4e0b\u6761\u4ef6\u65ad\u70b9\u7684\u8bdd\uff0c\u65ad\u4e0d\u4e0b\u6765\u3002\u539f\u56e0\u5c1a\u4e0d\u6e05\u695a\uff0c\u7b49\u6709\u7a7a\u518d\u6765\u6d4b\u8bd5\u770b\u770b\u3002
\n\u9996\u5148\u6211\u4eec\u770b\u4e00\u4e0b CreateFileA \u5728 MSDN \u4e2d\u7684\u89e3\u91ca\uff1a
\nHANDLE CreateFile(
\nLPCTSTR lpFileName,\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ pointer to name of the file
\nDWORD dwDesiredAccess,\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ access (read-write) mode
\nDWORD dwShareMode,\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ share mode
\nLPSECURITY_ATTRIBUTES lpSecurityAttributes,
\n\/\/ pointer to security attributes
\nDWORD dwCreationDisposition,\u00a0 \/\/ how to create
\nDWORD dwFlagsAndAttributes,\u00a0 \/\/ file attributes
\nHANDLE hTemplateFile\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ handle to file with attributes to
\n\/\/ copy
\n);
\n\u4ece\u4e0a\u9762\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\u7b2c\u4e00\u4e2a\u53c2\u6570\u5c31\u662f\u6587\u4ef6\u540d\u6307\u9488\uff0c\u4e5f\u5c31\u662f\u8bf4\u8fd9\u4e2a\u53c2\u6570\u4e2d\u5b58\u653e\u7684\u5c31\u662f\u6587\u4ef6\u540d\u79f0\u7684\u5730\u5740\u3002\u572832\u4f4d\u7a0b\u5e8f\u4e2d\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u65f6\u8fd9\u4e2a\u53c2\u6570\u7684\u5806\u6808\u5730\u5740\u5c31\u5e94\u8be5\u662f esp+4\uff084\u00d78=32\uff09\uff0c\u540c\u7406\uff0c\u4e0b\u4e00\u4e2a\u53c2\u6570\u5c31\u5e94\u8be5\u662fesp+8\u3002\u5176\u5b83\u7c7b\u63a8\uff0c\u8fd4\u56de\u503c\u662fesp+0\u3002\u6211\u4eec\u73b0\u5728\u8981\u5224\u65ad\u6587\u4ef6\u540d\uff0c\u8fd9\u91cc\u7684\u6587\u4ef6\u540d\u5c31\u662fesp+4\u5730\u5740\u6240\u6307\u5411\u7684\u5730\u5740\u4e2d\u7684\u5185\u5bb9\u3002\u53d6\u5730\u5740\u4e2d\u7684\u5185\u5bb9\u5728OD\u4e2d\u7528\u53cc\u65b9\u62ec\u53f7\u6765\u64cd\u4f5c\uff0c\u5982\u53d6esp+4\u4e2d\u7684\u5185\u5bb9\u5c31\u8be5\u5199\u6210\u8fd9\u6837\uff1a[esp+4]\u3002\u73b0\u5728\u6211\u4eec\u53d6\u7684[esp+4]\u4e2d\u7684\u5185\u5bb9\u8fd8\u662f\u4e2a\u5730\u5740\uff0c\u6240\u4ee5\u8981\u5f97\u5230\u6587\u4ef6\u540d\u5219\u8fd8\u8981\u518d\u53d6\u8fd9\u4e2a\u5730\u5740\u4e2d\u7684\u5185\u5bb9\uff0c\u5c31\u8be5\u8fd9\u6837\uff1a[[esp+4]]\u3002\u800c\u90a3\u4e2aSTRING\u524d\u7f00\u5728OD\u4e2d\u7684\u89e3\u91ca\u662f\u4ee5\u96f6\u4f5c\u4e3a\u7ed3\u5c3e\u7684 ASCII\u5b57\u7b26\u4e32\u3002\u6240\u4ee5\u6211\u4eec\u4e0b\u6761\u4ef6\u65ad\u70b9\u65f6\u8fd9\u6837\u5199\uff1a
\nbp CreateFileA,[STRING [esp+4]]==”abcdefghigklmn”
\n\u4f46\u5374\u53d1\u73b0\u65ad\u4e0d\u4e0b\u6765\uff0c\u5199\u6210\u8fd9\u6837\uff1a
\nbp CreateFileA,[[STRING [esp+4]]]==”abcdefghigklmn”
\n\u624d\u80fd\u65ad\u4e0b\u6765\uff0c\u8fd9\u91cc\u5c31\u5e94\u8be5\u662f\u4e09\u5c42\u7684\u5730\u5740\u4e86\u3002\u4e3a\u4ec0\u4e48\u8fd9\u6837\u76ee\u524d\u5c1a\u4e0d\u6e05\u695a\uff0c\u7b49\u6211\u4ee5\u540e\u6709\u7a7a\u5199\u7b2c\u516d\u7bc7\u6761\u4ef6\u65ad\u70b9\u65f6\u6211\u4f1a\u518d\u8be6\u7ec6\u89e3\u91ca\u4e00\u4e0b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Q:\u8bf7\u6559OD\u4e2d\uff1aecx\u6307\u5411”abcdefghigklmn”\u8fd9\u4e2a\u5b57\u7b26\u4e32\u7684\u6761\u4ef6\u65ad\u70b9\u5982\u4f55\u4e0b\uff1f […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"_links":{"self":[{"href":"https:\/\/www.abin.cn\/index.php?rest_route=\/wp\/v2\/posts\/94"}],"collection":[{"href":"https:\/\/www.abin.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.abin.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.abin.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.abin.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=94"}],"version-history":[{"count":0,"href":"https:\/\/www.abin.cn\/index.php?rest_route=\/wp\/v2\/posts\/94\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.abin.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=94"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.abin.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=94"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.abin.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=94"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}