{"id":501,"date":"2018-07-15T20:01:23","date_gmt":"2018-07-15T12:01:23","guid":{"rendered":"https:\/\/flandre-scarlet.moe\/blog\/?p=501"},"modified":"2019-05-14T00:53:22","modified_gmt":"2019-05-13T16:53:22","slug":"crackme-%e5%8f%8d%e6%b1%87%e7%bc%96%e7%bb%83%e4%b9%a0%e4%b9%8b-024","status":"publish","type":"post","link":"https:\/\/flandre-scarlet.moe\/blog\/501\/","title":{"rendered":"CrackMe \u53cd\u6c47\u7f16\u7ec3\u4e60\u4e4b 024\u3001026"},"content":{"rendered":"<p>\u4f5c\u4e3a\u7ec3\u624b\u7684 160 \u4e2a CrackMe \u7cfb\u5217\u6574\u7406\u5206\u6790<br \/>\n<!--more--><\/p>\n<p>CrackMe \u6765\u6e90\uff1a<a href=\"https:\/\/www.52pojie.cn\/thread-709699-1-1.html\" rel=\"noopener noreferrer\" target=\"_blank\">\u3010\u53cd\u6c47\u7f16\u7ec3\u4e60\u3011160\u4e2aCrackME\u7d22\u5f15\u76ee\u5f551~160\u5efa\u8bae\u6536\u85cf\u5907\u7528<\/a><\/p>\n<\/p>\n<h1>024<\/h1>\n<p><img decoding=\"async\" src=\"https:\/\/flandre-scarlet.moe\/blog\/wp-content\/uploads\/2018\/07\/crackme-24-1.png\" alt=\"\u4ee3\u7801\" \/><\/p>\n<p>\u6d41\u7a0b\u662f\u4f7f\u7528\u7528\u6237\u540d\u6ce8\u518c\u7801\u8ba1\u7b97\u51fa X \u5b58\u5165 [4012D9] \u5904\uff0c\u518d\u5bf9\u5305\u542b [4012D9] \u5728\u5185\u7684\u4e00\u6bb5\u4ee3\u7801\u8fdb\u884c\u5f02\u6216\u68c0\u9a8c\u8ba1\u7b97\u3002<\/p>\n<p>\u8fd9\u6bb5\u8ba1\u7b97\u7684\u5173\u952e\u5728\u4e8e\u4f7f\u7528\u4e86\u4ee3\u7801\u6bb5\u7684\u4e00\u90e8\u5206 (4011EC~4012E4 \u5171 3E*4 \u4e2a\u5b57\u8282) \u56db\u5b57\u8282\u5faa\u73af\u5f02\u6216\u8ba1\u7b97\u6821\u9a8c\u503c\uff0c\u5176\u4e2d [4012D9] \u8fd9\u4e2a\u53cc\u5b57\u4f1a\u53d7\u5230\u7528\u6237\u540d\u548c\u6ce8\u518c\u7801\u7684\u5f71\u54cd\u800c\u53d8\u5316\uff0c\u6b64\u5916\u4e5f\u4e0d\u80fd\u6253 int3 \u65ad\u70b9\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u8fdb\u884c\u5012\u63a8\uff0c\u5047\u8bbe [4012D9] = 0xM1M2M3M4\uff0c\u6ce8\u610f [4012D9] \u6ca1\u6709 4 \u5b57\u8282\u5bf9\u9f50<\/br> (4012D8 \uff1a04 M4 M3 M2 | M1 AD 33 D8)\u3002<\/p>\n<p>\u56e0\u4e3a\u8ba1\u7b97\u8fc7\u7a0b\u662f\u6bcf\u4e2a\u53cc\u5b57\u4ee3\u5165\u5f02\u6216\uff0c\u6240\u4ee5\u5c06 04 \u548c M1 \u4ea4\u6362\u4e0d\u5f71\u54cd\u7ed3\u679c(\u4e24\u4e2a\u90fd\u662f\u6700\u4f4e\u4f4d)\uff0c\u7531\u6b64\u5f97\u5230 0xM2M3M4M1 = 0xAFFCCFFB ^ <u>0xFBDA24A3<\/u> = 0x5426EB58\uff0c\u5176\u4e2d <u>0xFBDA24A3<\/u> \u662f\u5c06 [4012D9] \u586b\u5165 0 \u65f6\u5269\u4f59\u90e8\u5206\u8ba1\u7b97\u7684\u7ed3\u679c\u3002<\/p>\n<p>\u8fd8\u539f\u5f97\u5230 [4012D9] = 0x585426EB\u3002<\/p>\n<p>\u5f53\u586b\u5165\u6b63\u786e\u7684\u673a\u5668\u7801\u65f6\uff0c\u6d41\u7a0b\u4fbf\u4f1a\u8df3\u8f6c\u5230\u6b63\u786e\u63d0\u793a\u5904<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/flandre-scarlet.moe\/blog\/wp-content\/uploads\/2018\/07\/crackme-24-2.png\" alt=\"\u6b63\u786e\u6267\u884c\u6d41\u7a0b\" \/><br \/>\n<\/br><\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">004012BB    3105 D9124000        xor dword ptr ds:&#x5B;4012D9],eax      ; eax \u89c6\u4e3a X\r\n004012C1    C1E8 10              shr eax,10\r\n004012C4    66:2905 D9124000     sub word ptr ds:&#x5B;4012D9],ax        ; \u8fd9\u91cc\u9ad8 16 \u4f4d\u53ef\u5355\u72ec\u63a8\u7b97<\/pre>\n<p>\u6839\u636e\u4e0a\u9762\u7684\u4ee3\u7801\u6709\u516c\u5f0f [4012D9] = ([\u521d\u59cb4012D9] ^ X) &#8211; (X >> 16) = 0x585426EB, \u4ee3\u5165 [4012D9] \u521d\u503c 0x584554,<\/br>\u5f97\u51fa X = 580C????\uff0c\u5269\u4e0b\u7684\u5199\u4e2a\u5faa\u73af\u7b97\u4e00\u4e0b\u5f97\u5230 3BA3\uff0c\u6240\u4ee5 X = 580C3BA3<\/p>\n<p>\u800c X \u7531<\/p>\n<ul>\n<li>[40300B] \u7684\u521d\u503c 0x58455443<\/li>\n<li>\u7528\u6237\u540d\u7684\u8ba1\u7b97\u548c<\/li>\n<li>atoi(\u6ce8\u518c\u7801)<\/li>\n<\/ul>\n<p>\u8ba1\u7b97\u5f97\u5230\uff08\u53c2\u89c1\u4ee3\u7801\u56fe\uff09\uff0c\u65b9\u4fbf\u8d77\u89c1\u7528\u6237\u540d\u586b\u5165\u4e00\u4e2a&#8221;1&#8243;(\u4e0d\u80fd\u7559\u7a7a)\uff0c\u5f97\u5230\u6ce8\u518c\u7801\u5e94\u4e3a X &#8211; <u>0x58455474<\/u> = 0xFFC6E72F = 4291225391\uff0c\u5176\u4e2d <u>0x58455474<\/u> \u662f\u7528\u6237\u540d\u586b 1 \u65f6\u4e0e [40300B] \u8ba1\u7b97\u7684\u4e2d\u95f4\u503c\uff0c\u5373 0x58455443 + 0x31 = 0x58455474\u3002<\/p>\n<p>\u6ce8\uff1a\u56e0\u4e3a\u662f\u6309\u6574\u4e2a\u7f13\u51b2\u533a\u7684\u5927\u5c0f\u6765\u5bf9\u7528\u6237\u540d\u8fdb\u884c\u8ba1\u7b97\u7684\uff0c\u6240\u4ee5\u6bd4\u5982\u5148\u586b\u4e86&#8221;2222&#8243;\uff0c\u518d\u6362\u6210&#8221;1&#8243;\uff0c\u7f13\u51b2\u533a\u4e2d\u6b8b\u7559\u7684 &#8220;22&#8221; \u4e5f\u4f1a\u5bf9\u8ba1\u7b97\u9020\u6210\u5f71\u54cd\uff0c\u6240\u4ee5\u5728\u7a0b\u5e8f\u8fd0\u884c\u540e\u4e0d\u8981\u586b\u5199\u591a\u4f59\u7684\u5b57\u7b26\u624d\u884c\u3002<\/p>\n<p>\u5f97\u5230\u4e00\u7ec4\u6ce8\u518c\u7801\uff1a<\/br><br \/>\n1<\/br><br \/>\n4291225391<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/flandre-scarlet.moe\/blog\/wp-content\/uploads\/2018\/07\/crackme-24-3.png\" alt=\"\u7ed3\u679c\" \/><br \/>\n<\/br><\/br><\/p>\n<h1>026<\/h1>\n<p>\u901a\u8fc7\u67e5\u627e\u5b57\u7b26\u4e32\u53ef\u5feb\u901f\u5b9a\u4f4d\u5230\u8ba1\u7b97\u6ce8\u518c\u7801\u7684\u4ee3\u7801\u3002\u7136\u540e\u4e00\u76f4\u5f80\u4e0a\u7ffb\uff0c\u5373\u53ef\u627e\u5230\u51fd\u6570\u7684\u5165\u53e3\u5904\u3002\u63a5\u4e0b\u6765\u987a\u5e8f\u5f80\u4e0b\u770b\uff08\u4ee5\u7528\u6237\u540d\u201c123456\u201d\u4e3a\u4f8b\uff09<\/p>\n<ol>\n<li>(\u8df3\u8fc7\u7528\u6237\u540d\u6700\u5c0f\u957f\u5ea6\u68c0\u6d4b\u90e8\u5206)<\/li>\n<li>\u9996\u5148\u662f\u4e00\u4e2a\u5faa\u73af\uff0c\u91cc\u9762\u987a\u5e8f\u53d6\u51fa\u7528\u6237\u540d\u7684\u6bcf\u4e2a\u5b57\u7b26\uff0c\u8fdb\u884c ch * 432.4 * 17.79 \/ 15 = X1 \u7684\u8fd0\u7b97\uff0c\u5e76\u4e14\u901a\u8fc7 SendKeys \u51fd\u6570\u5411\u7a97\u53e3\u53d1\u9001 home \u952e\u548c del \u952e\u7684\u6d88\u606f\u6765\u53d6\u540e\u7eed\u7684\u7528\u6237\u540d\u5b57\u7b26\u3002\u56e0\u4e3a\u6bcf\u6b21\u5faa\u73af\u90fd\u4f1a\u5c06\u7ed3\u679c\u4fdd\u5b58\u5230\u540c\u4e00\u4e2a\u5730\u65b9\uff0c\u6240\u4ee5\u7b49\u4ef7\u4e3a\u8ba1\u7b97\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\u3002 SendKeys \u8fd9\u91cc\u6709\u53cd\u8c03\u8bd5\u7684\u6548\u679c\uff0c\u5355\u6b65\u4f1a\u4f7f\u539f\u7a0b\u5e8f\u6536\u4e0d\u5230\u6309\u952e\u6d88\u606f\u800c\u8fdb\u5165\u6b7b\u5faa\u73af\u3002<img decoding=\"async\" src=\"https:\/\/flandre-scarlet.moe\/blog\/wp-content\/uploads\/2018\/07\/crackme-26-1.png\" alt=\"2\" \/><\/li>\n<li>\u5c06\u4e0a\u4e00\u6b65\u7684 X1 \u53d6\u6574\u4e3a X11\u3002<img decoding=\"async\" src=\"https:\/\/flandre-scarlet.moe\/blog\/wp-content\/uploads\/2018\/07\/crackme-26-2.png\" alt=\"3\" \/><\/li>\n<li>X11 \u52a0\u4e0a\u7528\u6237\u540d\u7b2c\u4e00\u4e2a\u5b57\u7b26\uff08\u7684ascii\uff09\u5230 X2\u3002<img decoding=\"async\" src=\"https:\/\/flandre-scarlet.moe\/blog\/wp-content\/uploads\/2018\/07\/crackme-26-3.png\" alt=\"4\" \/><\/li>\n<li>X11 &#8211; (\u7528\u6237\u540d\u7b2c\u4e00\u4e2a\u5b57\u7b26 * 0x19) \u5f97\u5230 X3\u3002<img decoding=\"async\" src=\"https:\/\/flandre-scarlet.moe\/blog\/wp-content\/uploads\/2018\/07\/crackme-26-4.png\" alt=\"5\" \/><\/li>\n<li>X11 \u8f6c 16 \u8fdb\u5236\u5b57\u7b26\u4e32\u5f97\u5230 X4\u3002<\/li>\n<li>\u7528\u6237\u540d\u7b2c\u4e00\u4e2a\u5b57\u7b26 * \u7528\u6237\u540d\u957f\u5ea6 &#8211; 0x1b \u5f97\u5230 X5\u3002<img decoding=\"async\" src=\"https:\/\/flandre-scarlet.moe\/blog\/wp-content\/uploads\/2018\/07\/crackme-26-5.png\" alt=\"7\" \/><\/li>\n<li>\u5c06 (10\u8fdb\u5236X2)\u3001(16\u8fdb\u5236X3)\u3001(X4)\u3001(10\u8fdb\u5236X5)\u3001(\u7528\u6237\u540d\u957f\u5ea6)\u3001(&#8220;-CM&#8221;) \u4f9d\u6b21\u8fde\u63a5\uff0c\u5373\u5f97\u5230\u6b63\u786e\u6ce8\u518c\u7801\uff0c\u6700\u540e\u6bd4\u8f83\u3002<\/li>\n<\/ol>\n<p>        <img decoding=\"async\" src=\"https:\/\/flandre-scarlet.moe\/blog\/wp-content\/uploads\/2018\/07\/crackme-26-6.png\" alt=\"8\" \/><\/br><\/br><\/p>\n<p>Ps: vb\u4ee3\u7801\u771f\u53c8\u81ed\u53c8\u957f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f5c\u4e3a\u7ec3\u624b\u7684 160 \u4e2a CrackMe \u7cfb\u5217\u6574\u7406\u5206\u6790&#8230; <\/p>\n<div class=\"read-more navbutton\"><a href=\"https:\/\/flandre-scarlet.moe\/blog\/501\/\">\u9605\u8bfb\u66f4\u591a<i class=\"fa fa-angle-double-right\"><\/i><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[32,33],"class_list":["post-501","post","type-post","status-publish","format-standard","hentry","category-reverse-engineering","tag-crackme","tag-33"],"_links":{"self":[{"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/posts\/501","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/comments?post=501"}],"version-history":[{"count":0,"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/posts\/501\/revisions"}],"wp:attachment":[{"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/media?parent=501"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/categories?post=501"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/tags?post=501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}