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          利用SEH進(jìn)入ring0以及單步自跟蹤的實(shí)現(xiàn)

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          發(fā)表于 2008-9-28 16:36:07 | 只看該作者 |倒序?yàn)g覽 |閱讀模式
          <FONT face=宋體 size=2>一、ring0!并不遙遠(yuǎn)...</FONT>
          ; x* z4 M" t2 ~4 o7 i/ i" j0 t; V<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN></SPAN></P>
          9 A# x  P& ]9 o3 e" P. \' W  x3 `<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>作為seh的一個(gè)有趣的應(yīng)用是進(jìn)入ring0,ring0意味著更多的權(quán)利,意味著你可以進(jìn)行一些其他ring3級(jí)應(yīng)用程序不能進(jìn)行的操作,譬如改自己的代碼段(在不修改段屬性的前提下),改系統(tǒng)數(shù)據(jù)(病毒?)等等,在9X下進(jìn)入ring0的方法很多,在NT下困難的多,SEH只是其中較簡(jiǎn)單的一種.打開(kāi)調(diào)試器看看系統(tǒng)kernel的工作狀態(tài),在9X下cs一般是28h,ds,ss等通常是30h,因此只要我們的cs和ss等在異常處理程序中被賦予上述ring0選擇子值,進(jìn)入ring0就可以實(shí)現(xiàn).可能我們需要執(zhí)行較復(fù)雜的操作,在ring0下一般不能直接調(diào)用常用api,當(dāng)然VxD,WDM等提供的系統(tǒng)服務(wù)是另外一種選擇. 否則,這在用下述簡(jiǎn)單方法進(jìn)入ring0后執(zhí)行會(huì)產(chǎn)生錯(cuò)誤,因此,我們?cè)趓ing0下盡快完成需要完成的任務(wù),然后迅速返回ring3.</SPAN></P>
            `. e, z, O: J8 ^<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">在<SPAN lang=EN-US>ring0下要完成如下任務(wù):</SPAN></SPAN></P>8 q. H/ ^0 v9 B/ I( Q5 I
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"></SPAN>&nbsp;</P>
          . P9 m! Q( S  A3 c. Q' A<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">1.取CR3的值,返回ring3顯示.在ring3下不可以讀取cr3的值.你可以打開(kāi)kernel調(diào)試器看看例子程序取到的值是否正確.</SPAN></P>. A9 |! F/ D. _. R3 `7 V
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">2.修改代碼段后面的jmp ****代碼,這在通常情況下只會(huì)導(dǎo)致保護(hù)錯(cuò)誤.而在ring0下是可以的,就像在前面例子中用she實(shí)現(xiàn)SMC的效果是一樣的,最后顯示幾個(gè)MsgBox,證明我們?cè)?jīng)到達(dá)過(guò)ring0</SPAN></P>7 G+ k! ~5 M0 F8 s, d( k4 W& `5 [, z
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"></SPAN>&nbsp;</P># J5 Z7 a8 o: L* [; H
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">這個(gè)例子是參考<SPAN lang=EN-US>owl的那個(gè)nasm寫(xiě)的例子用masm改寫(xiě),并增加ring0下SMC的代碼部分以作演示.另外代碼中iretd指令并不是簡(jiǎn)單實(shí)現(xiàn)跳轉(zhuǎn),而是實(shí)現(xiàn)從ring0切回ring3的功能,在變換代碼特權(quán)級(jí)的同時(shí),堆棧的也要變換到ring3.可能原例子ljtt前輩的中文注釋容易引起初學(xué)者的誤解.</SPAN></SPAN></P>% Y. R; S9 V# F2 A
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"></SPAN>&nbsp;</P>2 E3 m: u1 P2 a, I+ Z, L
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">別的不說(shuō)<SPAN lang=EN-US>,我發(fā)現(xiàn)進(jìn)入ring0后修改代碼段可以使trw的跟蹤崩潰...hmmm,好消息?代碼如下:</SPAN></SPAN></P>+ w3 w% i4 I7 R7 Y! u
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">其中用的一些宏在<SPAN lang=EN-US>Ex5中已經(jīng)貼了,就不再重復(fù).</SPAN></SPAN></P>
          4 v8 e. h, n3 @/ w<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">;-----------------------------------------</SPAN></P>5 Q& H* M2 N1 l* ]5 z- S) ], k2 Y
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">;Ex6,演示利用seh進(jìn)入ring0! by Hume,2002</SPAN></P>) N& e! u3 \& q. M* S* p! V
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">;humewen@21cn.com </SPAN></P>
          ! c% m5 y* Y' ]# P0 @& l<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">;hume.longcity.net</SPAN></P>" }# x! H/ c0 Y  E* R) x0 W! p
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">;-----------------------------------------</SPAN></P>0 j& n* P: \  R
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">.586</SPAN></P>
          3 {( `. m6 o+ Y+ R  a* X<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">.model flat, stdcall</SPAN></P>+ a, H! S$ a/ l# c3 e/ V, o$ w
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">option casemap :none<SPAN style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>; case sensitive</SPAN></P>0 z! V7 m+ x# X, ^& G1 S( w2 Z
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">include hd.h</SPAN></P>% I3 G$ o% z, ?7 z6 S8 m! Z/ M
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">include mac.h</SPAN></P>
          4 Q! M% U6 b; Y& J<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"></SPAN>&nbsp;</P>; y8 Z- u0 t% Q3 e9 x
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">;;--------------</SPAN></P>
          3 X3 }5 Z/ f. G# i% O<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">ring0_xHandler<SPAN style="mso-tab-count: 1">&nbsp;&nbsp; </SPAN><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>proto C :DWORD,:DWORD,:DWORD,:DWORD</SPAN></P>& Q' c, B4 e' s1 x; {3 S* z/ u
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>.data</SPAN></P>3 Z: @& F/ u# p/ n
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">szbuf<SPAN style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>db 100 dup (0)</SPAN></P>
          3 t8 r0 ~/ d0 s% M$ ]$ H: ^<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">count<SPAN style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>dd 0</SPAN></P>
          # {! S2 k3 K: U, y: z6 o<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">;;-----------------------------------------</SPAN></P>
          % K  f4 j/ }0 c3 t% X<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">.CODE</SPAN></P>
          - E3 [; c0 Z8 J- k3 B<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">_Start:</SPAN></P>
          / k9 U7 c6 e$ S& M8 }' K0 G<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>assume fs:nothing</SPAN></P>
          & B6 l5 G+ y. E& x2 r/ B! q<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>push<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>offset ring0_xHandler</SPAN></P>
          $ E$ F* {$ Y: Z4 m<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>push<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>fs:[0]</SPAN></P>3 x. G# k# Q% E0 B2 G1 D2 d0 N/ ]
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>fs:[0],esp</SPAN></P>1 g1 p, q# W3 F. F% B. I+ |$ y
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;--------------------</SPAN></P>2 `( t) {' T& t" Q! |
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>ecx,ds</SPAN></P>
          ( H, V: O2 B4 |) C<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>test<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>ecx,100b</SPAN></P>6 Q- c, L1 \0 V7 O5 O: s* b
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>jz<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>NT_2K_XP<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;NT/2K/XP has no LDT </SPAN></P>+ _* S! n2 H5 h- G; T$ D8 K
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>pushfd</SPAN></P>3 u  t5 n4 Q# B/ T5 Z0 n4 a5 b1 t
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>eax,esp</SPAN></P>" _; c, `1 M$ x7 @- P5 |1 x" w
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"></SPAN>&nbsp;</P>
          & r  Y9 B( q4 I<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>int<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>3</SPAN></P>
          * N" R+ q. Y  W3 S  Q% i* m<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>ebx,cr3<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;現(xiàn)在,正式宣布,進(jìn)入ring0! </SPAN></P>  l; S1 {; E" L0 t! C
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;呵呵這樣簡(jiǎn)單就進(jìn)入ring0了,至于進(jìn)入</SPAN></P>& C$ f( ]4 _3 A5 g
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>push<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>ebx<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;ring0有啥用,不要問(wèn)我!</SPAN></P>2 f( W5 \: n- R8 ~
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>lea<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>ebx,offset _modi<SPAN style="mso-spacerun: yes">&nbsp; </SPAN>;SMC</SPAN></P>
            M' c" |% @8 W8 g( P/ z<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp; </SPAN><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>byte ptr[ebx],75h ;修改jmp addinfo為jnz addinfo指令</SPAN></P>2 Q; N/ J5 S8 x5 y" y
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>pop<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>ebx</SPAN></P>
          ! l) y: @- V: C6 v; P<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"></SPAN>&nbsp;</P>
          & q' j5 F8 g& R% B5 [8 M<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>push<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>edx<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;ss</SPAN></P>0 Y% n! T; F# _( I6 ]4 c
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>push<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>eax<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;esp</SPAN></P>8 }4 p. r# u2 q8 O. F
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>push<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>dword ptr[eax]<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;eflags<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN></P># L" H1 Y9 Q! ~" |1 h2 G6 B. P
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>push<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>ecx<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</SPAN>;cs</SPAN></P>' B/ U; `2 Q+ F/ u2 F: T4 D
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>push<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>offset ring3back<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;eip</SPAN></P>" X& u6 i9 O" ~1 `1 E3 j/ D
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>iretd<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;這里是通過(guò)iretd 指令返回特權(quán)級(jí)3</SPAN></P>
          , N& \5 Z  e4 t& ~2 g<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"></SPAN>&nbsp;</P>8 z# e3 v7 g% ~6 j$ P, w( H
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">ring3back:</SPAN></P>5 ]  h1 {, F6 v6 p5 E9 U
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>popfd</SPAN></P>- k$ @7 g( r% c, Y& O2 H) e
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>invoke<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>wsprintf,addr szbuf,ddd("It's in ring0,please see CR3==%08X",0dh,oah,"following display Modified info..."),ebx</SPAN></P>
          ( D. E  i  V& ^/ o<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>invoke<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>MessageBox,0,addr szbuf,ddd("Ring0! by Hume[AfO]"),40h<SPAN style="mso-spacerun: yes">&nbsp; </SPAN></SPAN></P>
          & Y; m: N5 ], k* I% [* t- |: E3 Z<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>xor<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>eax,eax</SPAN></P>
          ! \+ S: N- H2 E. A<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;add<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>eax,2</SPAN></P>" \1 {/ E& K) W% Y) M( [  g
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>.data</SPAN></P>, ], @) r6 k8 B
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>Nosmc db "Not modified area!",0</SPAN></P>2 J# `4 D% Y5 @& u0 E, J  J3 g$ Q
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>besmc db "haha,I am modified by self in ring0!",0</SPAN></P>! o, {& y: f5 l5 @6 G1 b) X" O$ @
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;</SPAN>.code</SPAN></P>
          $ {2 R5 e7 Q% R6 @2 w<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>ebx,offset Nosmc</SPAN></P>
          5 H5 ]7 M! u/ |, U' }, y4 n<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>eax,0</SPAN></P>
          : h, O4 z- }; y# ^% v<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">_modi:</SPAN></P>
          * `* I( T9 h4 [& a  I$ I% i8 O) c<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;</SPAN><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>jmp<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>addinfo<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;SMC后將這里改為jnz addinfo </SPAN></P>
          7 P6 x" C' m- U0 P$ {8 T$ ^/ I<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"></SPAN>&nbsp;</P>& [* l% W- _) \0 L# d
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>ebx,offset besmc</SPAN></P>9 K, }5 k3 d1 ], A5 L( D, s) ~# s
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>eax,30h</SPAN></P>( u5 h& \5 A9 p6 t% \
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">addinfo:</SPAN></P>
          / n" {; f4 C/ z1 M. ~& [<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>invoke<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>MessageBox,0,ebx,ddd("Rin0 SMC test"),eax</SPAN></P>
          # [5 A$ x/ y8 v% B) D1 J<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">_exit:</SPAN></P>
          % ]. a6 ~1 t# g6 ?# P4 e<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;--------------------<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN></P>
          . m" E2 M" C4 D) f, A<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>pop<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>fs:[0]</SPAN></P>3 J! ?2 a4 ]+ {# k8 h
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;</SPAN>add<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>esp,4</SPAN></P>: r! U3 y/ Q9 P
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>invoke<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>ExitProcess,0</SPAN></P>
          3 t8 v5 {; ]7 W& `6 A& ~0 Z/ w/ _<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"></SPAN>&nbsp;</P>
          5 N# Z3 q; b, D: N; b5 r' ?, Y<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">NT_2K_XP:</SPAN></P>' [/ p+ ]  M9 D* J6 \
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>invoke<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>MessageBox,0,ddd("The example not support NT/2K/Xp,only 9x!"),ddd("By hume"),20h</SPAN></P>
          7 R) ^% K+ V9 ]( F( n# P<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>jmp<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>_exit</SPAN></P>
          * q/ a+ ~! T7 f: ~<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">;-----------------------------------------</SPAN></P>8 M' Q( R! n( Y2 k& A
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">ring0_xHandler PROC C pExcept:DWORD,pFrame:DWORD,pContext:DWORD,pDispatch:DWORD</SPAN></P>
          ( F  K8 L1 y! j. Y- p<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>pushad<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN></P>3 H/ j+ X9 ~" O% V1 ~
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">assume<SPAN style="mso-spacerun: yes">&nbsp; </SPAN>edi:ptr CONTEXT</SPAN></P>
          4 b  N4 B2 z; e& O5 Y<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">assume<SPAN style="mso-spacerun: yes">&nbsp; </SPAN>esi:ptr EXCEPTION_RECORD</SPAN></P>6 E0 D, [8 ~  C0 T* X
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"></SPAN>&nbsp;</P>
          $ f+ M6 Y- G1 b* A9 g; r<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>esi,pExcept</SPAN></P>
            D  _: x4 ]% \, M# s- q' p<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>edi,pContext<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN></P>& a" g- S% @1 D8 f
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>test<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>dword ptr[esi+4],1<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;Exception flags</SPAN></P>2 \8 i. e6 ^! [# P$ ^7 g
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>jnz<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>@f<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN></P>
          9 Q  [( J/ N  C5 B- H2 T$ i<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>test<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>dword ptr[esi+4],6</SPAN></P>% U$ Y2 `7 a: }  x
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>jnz<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>@f</SPAN></P>
          * X' j, \0 v* O$ x0 X/ ]<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>cmp<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>dword ptr[esi],80000003h<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;break ponit flag</SPAN></P>+ Q" y& S! ?4 j5 ^; H3 A; ^
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>jnz<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>@f<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN></P>% a* j: g% d: j" r9 b+ o2 y
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN></P>
          % L9 f$ s& _9 ~1 n! Z6 U! u, \<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>m2m<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>[edi].regEcx,[edi].regCs<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;保存3級(jí)代碼段選擇子</SPAN></P>
          $ T" `( ~& P' x# r% Y+ |<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;</SPAN>[edi].regCs,28h<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;0級(jí)代碼段選擇子</SPAN></P>/ \- M  G% j9 X* A9 K8 o
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"></SPAN>&nbsp;</P>
          3 {2 v/ \0 \# u7 T% E+ u<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>m2m<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>[edi].regEdx,[edi].regSs<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;保存3級(jí)堆棧段選擇子</SPAN></P>
          5 U! f" v" P* y- d<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>[edi].regSs,30h<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>;0級(jí)堆棧選擇子</SPAN></P>
          : S9 v3 e7 ^6 @; z3 \$ `<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"></SPAN>&nbsp;</P>6 W1 ?! r% {; X( N
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>dword ptr[esp+7*4],0</SPAN></P>) L3 n7 l1 h1 ^) e" q7 K3 f
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>popad<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN></P>
          . B. G% ]. _& N7 X* a( C<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>ret</SPAN></P>
          ; t2 P, i) U8 t5 m$ s( Y* \+ H2 o' J<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">@@:</SPAN></P>0 j0 X" z- Q" R0 ~. [& Q, L
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="mso-spacerun: yes">&nbsp;</SPAN>dword ptr[esp+7*4],1</SPAN></P>/ L; E, C7 p( Q9 u
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>popad<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN></SPAN></P>5 a' N" x  ]! n, b7 R+ v9 u
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>ret</SPAN></P>
          2 P$ v3 E) R1 \) |# z3 K' I3 X<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">ring0_xHandler ENDP</SPAN></P>
          ; M# {+ j  t0 X1 s# l- a<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">;-----------------------------------------</SPAN></P>
          5 x5 W2 m- A4 Q<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt">END<SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp; </SPAN>_Start</SPAN></P>
          9 A4 j8 n: O. Y0 K7 M+ M<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"></SPAN>&nbsp;</P>
          ( \  I. ~' h8 s; }% j<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;</SPAN>由于在NT/2K/XP下這種進(jìn)入ring0的方法不能使用,所以首先區(qū)別系統(tǒng)版本,如果是NT/2K/XP則拒絕執(zhí)行, 原理是在NT/2K/XP下沒(méi)有LDT,因此測(cè)試選擇子是否指向LDT,這是一種簡(jiǎn)單的方法,但不推薦使用, 最好使用GetVersionEx...至于</SPAN></P>
          3 m! D- i7 A5 _* m$ s) K<P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>mov<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>dword ptr[esp+7*4],0</SPAN></P>8 p* _5 K8 A4 B' x5 l
          <P class=MsoNormal style="LAYOUT-GRID-MODE: char; TEXT-INDENT: 20pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>popad<SPAN style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN></P>6 T9 f; i  K/ Z4 `6 J) d
          <P class=MsoNormal><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 宋體; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes">&nbsp;</SPAN>是返回eax=1的實(shí)現(xiàn)</SPAN></P>
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