{"id":252,"date":"2022-12-09T17:59:15","date_gmt":"2022-12-09T09:59:15","guid":{"rendered":"https:\/\/shangwendada.co\/?p=252"},"modified":"2023-10-31T14:19:34","modified_gmt":"2023-10-31T06:19:34","slug":"reverse%e9%a6%96%e5%b1%8a%e5%a4%a9%e6%9d%83%e4%bf%a1%e5%ae%89catf1ag%e7%bd%91%e7%bb%9c%e5%ae%89%e5%85%a8%e8%81%94%e5%90%88%e5%85%ac%e5%bc%80%e8%b5%9bcheckin","status":"publish","type":"post","link":"https:\/\/blog.shangwendada.top\/index.php\/2022\/12\/09\/reverse%e9%a6%96%e5%b1%8a%e5%a4%a9%e6%9d%83%e4%bf%a1%e5%ae%89catf1ag%e7%bd%91%e7%bb%9c%e5%ae%89%e5%85%a8%e8%81%94%e5%90%88%e5%85%ac%e5%bc%80%e8%b5%9bcheckin\/","title":{"rendered":"[Reverse]\u9996\u5c4a\u201c\u5929\u6743\u4fe1\u5b89&catf1ag\u201d\u7f51\u7edc\u5b89\u5168\u8054\u5408\u516c\u5f00\u8d5bcheckin"},"content":{"rendered":"
\n

Checkin(\u70b9\u51fb\u4e0b\u8f7d\u6587\u4ef6)<\/a><\/h2>\n

\u67e5\u58f3\u8131\u58f3<\/h1>\n

\"file\"<\/div>
\n\u53d1\u73b0\u662fupx\u58f3\u6211\u4eec\u76f4\u63a5\u4f7f\u7528\u5de5\u5177\u8131\u58f3
\n
\"file\"<\/div>
\n\u53d1\u73b0\u65e0\u6cd5\u76f4\u63a5\u8131\u58f3\u770b\u6837\u5b50\u662f\u9b54\u6539\u7684upx\u6211\u4eec\u53ea\u80fd\u624b\u52a8\u8131\u58f3
\n\u5c06\u7a0b\u5e8f\u653e\u5165x32dbg
\n
\"file\"<\/div>
\n\u70b9\u51fb\u4e0a\u9762\u7684\u8c03\u8bd5\u540e\u70b9\u51fb\u8fd0\u884c
\n
\"file\"<\/div>
\n\u8fdb\u5165\u8fd9\u4e2a\u754c\u9762\u770b\u5230pushad\u5c31\u53ef\u4ee5\u786e\u5b9a\u662f\u6709\u58f3\u4e86\uff0c\u6211\u4eec\u6309f8\u5355\u6b65\u8fd0\u884c\u81f3mov\u6307\u4ee4\u3002
\n
\"file\"<\/div>
\n\u53f3\u51fb\u5de6\u4fa7ESP
\n
\"file\"<\/div>
\n\u9009\u62e9\u5728\u8f6c\u50a8\u4e2d\u8ddf\u968f
\n
\"file\"<\/div>
\n\u53f3\u51fb\u5de6\u4e0b\u89d2\u9009\u62e9\u5982\u4e0a\u64cd\u4f5c\u540e\u6309f9\u8ba9\u7a0b\u5e8f\u8dd1\u8d77\u6765
\n\u7136\u540e\u4e00\u76f4\u6309f8\u76f4\u5230\u7a0b\u5e8f\u7b2c\u4e00\u6b21\u8df3\u8f6c\u540e\u518d\u6309f8 \u5c31\u662f\u627e\u5230\u4e86\u7a0b\u5e8f\u5165\u53e3
\n
\"file\"<\/div>
\n\u70b9\u51fb\u5982\u4e0b\u6309\u94ae
\n
\"file\"<\/div>
\n
\"file\"<\/div>
\n\u9009\u62e9dump
\n
\"file\"<\/div>
\n\u53d6\u540d\u5b57\u4fdd\u5b58\u4e4b\u540e\u4f9d\u6b21\u9009\u62e9
\n
\"file\"<\/div>
\n
\"file\"<\/div>
\n\u9009\u62e9\u521a\u521a\u91cd\u547d\u540d\u7684\u6587\u4ef6\uff0c\u5c31\u53ef\u4ee5\u770b\u5230\u684c\u9762\u4e0a\u51fa\u73b0\u4e86,\u5c31\u662f\u8131\u58f3\u6210\u529f\u4e86
\n
\"file\"<\/div><\/p>\n

IDA\u5206\u6790<\/h1>\n

shift+f12\u627e\u5230\u8be5\u5b57\u7b26\u4e32\u4ea4\u53c9\u5e94\u7528\u5230\u5173\u952e\u51fd\u6570
\n

\"file\"<\/div>
\n\u53d1\u73b0\u8be5\u6bb5\u51fd\u6570\u6ca1\u6709\u88ab\u58f0\u660e
\n
\"file\"<\/div>
\n\u8bb2\u7ea2\u8272\u90e8\u5206\u5168\u90e8\u6846\u4f4f\u7136\u540e\u6309p\u58f0\u660e\u4e4b\u540e\u8fdb\u5165\u51fd\u6570
\n
\"file\"<\/div>
\n\u5f53sub_F312c6\u8fd4\u56de\u503c\u4e3a1\u65f6\u8f93\u51fatext\u7684\u5185\u5bb9\u5185\u5bb9\u4e3a\u201cyou are good\u201d
\n\u6211\u4eec\u53ea\u9700\u8981\u8fdb\u5165sub_F312c6\u4e2d\u67e5\u770b
\n
\"file\"<\/div>
\n\u51fa\u73b0\u82b1\u6307\u4ee4 nnd\uff0c\u8fdb\u53bb\u770b\u770b
\n\u9009\u4e2d\u7ea2\u8272\u8fd9\u884c\u7136\u540e\u6309tab
\n
\"file\"<\/div>
\n\u7ea2\u8272\u90e8\u5206\u5168\u90e8nop\u6389\u7136\u540e\u5c06call\u51fd\u6570\u8f6c\u5316\u4e3adata
\n
\"file\"<\/div>
\n\u518d\u628a\u6570\u636eE8\u7528nop\u586b\u5145\u7136\u540e\u9010\u884c\u6309c\u8f6c\u5316\u4e3a\u4ee3\u7801
\n\uff08\u8fd9\u91cc\u76f4\u63a5nop\u4f1a\u4eceE8\u53d8\u621090\uff0c\u6211\u4eec\u9700\u8981\u5148\u628a90\u5355\u72ec\u6309c\u8f6c\u5316\u4e3anop\u6307\u4ee4\uff09
\n\u63a5\u4e0b\u6765\u53d1\u73b0\u4e0b\u9762\u8fd8\u6709\u7ea2\u8272\u7684\u90e8\u5206\u4e5f\u662f\u6309\u7167\u4e0a\u9762\u7684\u64cd\u4f5c\u7c7b\u4f3c\u64cd\u4f5c
\n\u6240\u6709\u7c7b\u4f3c\u4e8e
\n
\"file\"<\/div>
\n\u8fd9\u6837\u7684\u6570\u636e\u90fd\u6309c\u8f6c\u5316\u4e3a\u6c47\u7f16\u4ee3\u7801
\n
\"file\"<\/div>
\n\u64cd\u4f5c\u5230\u8fd9\u91cc\u7136\u540e\u628a\u4e0a\u9762\u7684\u4ee3\u7801\u90fd\u62ec\u4f4f\u6309p\u58f0\u660e
\n\u7136\u540e\u6309f5\u53cd\u7f16\u8bd1\u4e3a\u4f2a\u4ee3\u7801
\n
\"file\"<\/div>
\n\u6839\u636e\u4f2a\u4ee3\u7801\u5185\u5bb9\u5199wp<\/p>\n

EXP<\/h1>\n
#include<iostream>\nusing namespace std;\nint a[257] = {0}; \/\/v16+1228\nint b[257] = {0}; \/\/v16 +20\nchar v16[10] = "flechao10";\nchar v13[4] = "#<#";\nint v12[257]={0};\nint main()\n{\n v12[0] = -125;\n  v12[1] = 27;\n  v12[2] = -14;\n  v12[3] = 75;\n  v12[4] = -81;\n  v12[5] = 1;\n  v12[6] = 5;\n  v12[7] = 35;\n  v12[8] = 57;\n  v12[9] = 93;\n  v12[10] = -94;\n  v12[11] = -101;\n  v12[12] = -110;\n  v12[13] = -15;\n  v12[14] = -99;\n  v12[15] = -35;\n  v12[16] = -35;\n  v12[17] = -103;\n  v12[18] = -68;\n  v12[19] = 119;\n  v12[20] = -53;\n  v12[21] = 25;\n  v12[22] = 114;\n  v12[23] = -27;\n  v12[24] = 100;\n  v12[25] = 47;\n  v12[26] = -42;\n  v12[27] = 62;\n  v12[28] = 15;\n  v12[29] = 18;\n  v12[30] = 5;\n  v12[31] = 108;\n  v12[32] = -112;\n  v12[33] = 48;\n  v12[34] = -73;\n  v12[35] = 2;\n  v12[36] = -58;\n  v12[37] = -48;\n  v12[38] = 0xE8;\n  v12[39] =  0x23;\n  v12[40] = 0x3C;\n  v12[41] =  0x23;\n    int v15[257] = {0};\n    for(int i = 0 ; i < 50 ; i ++ )\n    {\n        v15[i+1]=v12[i];\n    }\n    for(int i = 0 ;  i < 256 ; i++ )\n    {\n        a[i]=v16[i%9];\n        b[i]=i;\n    }\n    int v10 = 0,v8;\n    for(int i = 0 ; i < 256 ; i++ )\n    {\n        v10 = (a[i]+b[i]+v10)%256;\n        v8 = b[i];\n        b[i]=b[v10];\n        b[v10]=v8^0x37;\n    }\n    int v5 = 0 ,v11 = 0 ;\n    int v9 = 0;\n    for(int i = 0 ; i < 50 ;  i++ )\n    {\n        v5 = (v5+1)%256;\n        v11 = (b[v5]+v11)%256;\n        v9 = b[v5];\n        b[v5]=b[v11];\n        b[v11]=v9;\n        v15[v5]^=b[(b[v11]+b[v5])%256];\n    }\n    for(int i = 0 ; i < 42; i ++ )\n    {\n        printf("%c",v15[i+1]);\n    }\n}\n\/\/<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
Checkin(\u70b9\u51fb\u4e0b\u8f7d\u6587\u4ef6) \u67e5\u58f3\u8131\u58f3 \u53d1\u73b0\u662fupx\u58f3\u6211\u4eec\u76f4\u63a5\u4f7f\u7528\u5de5\u5177\u8131\u58f3 \u53d1\u73b0\u65e0\u6cd5\u76f4\u63a5\u8131\u58f3\u770b\u6837\u5b50\u662f\u9b54\u6539\u7684u […]<\/p>\n","protected":false},"author":1,"featured_media":181,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-252","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/posts\/252","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/comments?post=252"}],"version-history":[{"count":8,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/posts\/252\/revisions"}],"predecessor-version":[{"id":688,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/posts\/252\/revisions\/688"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/media\/181"}],"wp:attachment":[{"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/media?parent=252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/categories?post=252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/tags?post=252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}