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  1. **********************************************************************
  2. **                                                                  **
  3. **  What's New in the NAV Virus Definitions Files      WHATSNEW.TXT **
  4. **                                                                  **
  5. **  Symantec AntiVirus Research Center (SARC)       August 19, 1999 **
  6. **                                                                  **
  7. **********************************************************************
  8. This document contains the following topics:
  9.  
  10.  * Virus Alerts
  11.  * New Technologies
  12.  * Changes Incorporated Into This Update
  13.  * Enabling/Disabling PowerPoint Scanning
  14.  * Additional Information
  15.  
  16. **********************************************************************
  17. ** Virus Alerts                                                     **
  18. **********************************************************************
  19. The ten most commonly reported viruses, worldwide:
  20.  
  21.     1  W97M.Class
  22.     2  XM.Laroux
  23.     3  O97M.Tristate
  24.     4  W95.CIH
  25.     5  Happy99.Worm
  26.     6  WM.Cap
  27.     7  W97M.ColdApe
  28.     8  W97M.Ethan
  29.     9  W97M.Melissa
  30.    10  Worm.ExploreZip
  31.  
  32. **********************************************************************
  33. ** New Technologies                                                 **
  34. **********************************************************************
  35.  
  36. DATE         Technologies Added
  37. ----         ------------------
  38. 8/19/98    * Excel heuristics which detect and repair new and unknown
  39.              macro viruses in Excel 95 & 97 documents.
  40.  
  41. 9/16/98    * Added repair for encrypted Excel 97 documents.
  42.  
  43. 10/21/98   * Heuristics to detect AOL Password Stealer Trojans.
  44.            * WORD Heuristics improvement to increase detection rate.
  45.  
  46. 12/17/98   * Macro Exclusion Engine to speed up the scanning for Word
  47.              and Excel documents.
  48.            * PowerPoint engine to scan PowerPoint related viruses.
  49.              To enable this technology please read "Enabling/Disabling
  50.              PowerPoint Scanning" section later in this document.
  51.  
  52. 02/18/99   * Detection and repair of macro viruses in Word and Excel
  53.              2000 documents.
  54.  
  55. 05/12/99   * Added repair for PowerPoint viruses.
  56.            * Improved heuristics to detect more WORD 97 related
  57.              viruses.
  58.  
  59. 06/10/99   * Menu repair technology for WORD macro viruses that change
  60.              command bar customizations in NORMAL.DOT.
  61.  
  62. 07/12/99   * Added support for scanning of Ichitaro 8/9 documents.
  63.              (Ichitaro is a Japanese word processing program).
  64.  
  65. 08/19/99   * Added detection and repair for embedded documents inside
  66.              PowerPoint 97.
  67.  
  68.  
  69. **********************************************************************
  70. ** Changes Incorporated Into This Virus Definitions Update            **
  71. **********************************************************************
  72. New virus definitions:
  73.  
  74.         Virus Name                Infection Type          Week added
  75.         ----------                --------------          ----------
  76.         Antiwin.633.B             File infector           07/19/99
  77.         Avenger.1344              File infector           07/19/99
  78.         Avenger.1344 (x)          File infector           07/26/99
  79.         BackOrifice2K.Inst3       File infector           07/26/99
  80.         BackOrifice2K.Inst4       File infector           07/26/99
  81.         BALOO.897                 File infector           08/02/99
  82.         BO2K.Inst3 (2)            File infector           07/26/99
  83.         BO2K.Inst3 (3)            File infector           07/26/99
  84.         BO2K.Inst3 (4)            File infector           07/26/99
  85.         BO2K.Inst4 (2)            File infector           07/26/99
  86.         BO2K.Inst4 (3)            File infector           07/26/99
  87.         BO2K.Inst4 (4)            File infector           07/26/99
  88.         BO2K.Trojan Variant       File infector           08/09/99
  89.         Boot.666.A                Boot infector           07/19/99
  90.         Boot.Killer               File and Boot infector  07/19/99
  91.         BRONTOZAVR.5632.D         File infector           07/19/99
  92.         BRONTOZAVR.5632.D (x)     File infector           07/19/99
  93.         Bumble.250                File infector           08/16/99
  94.         CAMILO.256                File infector           07/19/99
  95.         CLME.Ming.1528            File infector           08/09/99
  96.         Codebreaker.1665          File infector           07/19/99
  97.         Companion.289             File infector           07/19/99
  98.         Companion.Mad.82          File infector           08/16/99
  99.         DEADMAN.548               File infector           08/16/99
  100.         Deadman.943               File infector           07/19/99
  101.         Dei.1792 (Gen)            File infector           08/19/99
  102.         DELTA.1177                File infector           07/19/99
  103.         Deltree Trojan #4         File infector           07/26/99
  104.         Deltree Trojan #4 (2)     File infector           07/26/99
  105.         Denzuk.G                  Boot infector           07/19/99
  106.         DIKSHEV.COMP.38           File infector           08/02/99
  107.         DIKSHEV.COMP.40           File infector           08/02/99
  108.         DIKSHEV.COMP.41           File infector           08/02/99
  109.         DIKSHEV.COMP.43.a         File infector           08/02/99
  110.         DIKSHEV.COMP.43.b         File infector           08/02/99
  111.         DIKSHEV.COMP.44.a         File infector           08/02/99
  112.         DIKSHEV.COMP.44.b         File infector           08/02/99
  113.         DIKSHEV.COMP.45.A         File infector           08/02/99
  114.         DIKSHEV.COMP.45.d         File infector           08/02/99
  115.         DIKSHEV.COMP.46.a         File infector           08/02/99
  116.         DIKSHEV.COMP.46.b         File infector           08/02/99
  117.         DIKSHEV.COMP.47           File infector           08/02/99
  118.         DIKSHEV.COMP.48           File infector           08/09/99
  119.         DIKSHEV.COMP.49           File infector           08/09/99
  120.         DIKSHEV.COMP.50           File infector           08/09/99
  121.         DIKSHEV.COMP.52           File infector           08/09/99
  122.         DIKSHEV.COMP.53           File infector           08/09/99
  123.         DIKSHEV.COMP.54           File infector           08/09/99
  124.         DIKSHEV.COMP.55           File infector           08/09/99
  125.         DIKSHEV.COMP.67           File infector           08/02/99
  126.         EXE Infector              File infector           08/16/99
  127.         Fair.2083 (x)             File infector           07/19/99
  128.         Glew.4245                 Boot infector           07/19/99
  129.         Gotcha.Trojan             File infector           08/16/99
  130.         Gullich.B                 Boot infector           07/19/99
  131.         HAL-COM.2901              File infector           07/19/99
  132.         HBV.2000                  File infector           08/02/99
  133.         HBV.2000 (x)              File infector           08/02/99
  134.         HG.450                    File infector           08/16/99
  135.         HLLC.Companion.6796       File infector           08/16/99
  136.         HLLC.HEBRA.7413           File infector           08/02/99
  137.         HLLC.HEBRA.7413(2)        File infector           08/02/99
  138.         HLLC.UNVISIBLE.D          File infector           08/02/99
  139.         HLLC.UNVISIBLE.D(2)       File infector           08/02/99
  140.         HLLO.2944                 File infector           07/19/99
  141.         HLLO.2944(2)              File infector           07/19/99
  142.         HLLO.3520                 File infector           08/02/99
  143.         HLLO.3520 (2)             File infector           08/02/99
  144.         HLLO.3520 (3)             File infector           08/02/99
  145.         HLLO.3552                 File infector           07/19/99
  146.         HLLO.3552(2)              File infector           07/19/99
  147.         HLLO.4880                 File infector           08/02/99
  148.         HLLO.4880 (2)             File infector           08/02/99
  149.         HLLO.4880 (3)             File infector           08/02/99
  150.         HLLO.Anti-NATO.4496       File infector           08/02/99
  151.         HLLO.Anti-NATO.4496(2)    File infector           08/02/99
  152.         HLLO.Anti-NATO.4496(3)    File infector           08/02/99
  153.         HLLO.BIGC.12224           File infector           07/19/99
  154.         HLLO.BIGC.12224(2)        File infector           07/19/99
  155.         HLLO.Chest.2340           File infector           07/19/99
  156.         HLLO.Dandler.13112        File infector           07/19/99
  157.         HLLO.MBUCK.3760           File infector           07/19/99
  158.         HLLO.MBUCK.3760(2)        File infector           07/19/99
  159.         HLLO.MYON.3549            File infector           08/02/99
  160.         HLLO.MYON.3549(2)         File infector           08/02/99
  161.         HLLP.4318                 File infector           08/16/99
  162.         HLLP.4318 (2)             File infector           08/16/99
  163.         HLLP.4318 (3)             File infector           08/16/99
  164.         hllp.Arian.8936           File infector           07/19/99
  165.         hllp.Arian.8936 (2)       File infector           07/19/99
  166.         hllp.Arian.8936 (3)       File infector           07/19/99
  167.         HLLP.DUKE.4336            File infector           08/16/99
  168.         HLLP.DUKE.4336 (2)        File infector           08/16/99
  169.         HLLP.DUKE.4336 (3)        File infector           08/16/99
  170.         HLLP.DUKE.5200            File infector           08/16/99
  171.         HLLP.DUKE.5200 (2)        File infector           08/16/99
  172.         HLLP.DUKE.5200 (3)        File infector           08/16/99
  173.         HLLP.DUKE.5280            File infector           08/16/99
  174.         HLLP.DUKE.5280 (2)        File infector           08/16/99
  175.         HLLP.DUKE.5280 (3)        File infector           08/16/99
  176.         HLLP.FIDOSPY.15000        File infector           07/19/99
  177.         HLLP.FIDOSPY.15000(2)     File infector           07/19/99
  178.         HLLP.HARRY.4696           File infector           07/19/99
  179.         HLLP.HARRY.4696(2)        File infector           07/19/99
  180.         HLLP.HMOK.3783            File infector           08/16/99
  181.         HLLP.HMOK.3783 (2)        File infector           08/16/99
  182.         HLLP.HMOK.3783 (3)        File infector           08/16/99
  183.         HLLP.MacBeth.5894         File infector           07/19/99
  184.         HLLP.Mutant.7489          File infector           08/16/99
  185.         HLLP.Mutant.7489 (2)      File infector           08/16/99
  186.         HLLP.Mutant.7489 (3)      File infector           08/16/99
  187.         HLLP.Mutant.7489 (v1)     File infector           08/16/99
  188.         HLLP.Mutant.7489 (v2)     File infector           08/16/99
  189.         HLLP.Mutant.7489 (v3)     File infector           08/16/99
  190.         HLLP.Rock.8875            File infector           07/19/99
  191.         HLLP.Sysn.10776           File infector           07/19/99
  192.         Intended.Armagedon        File infector           07/19/99
  193.         Intended.DJ.2486          File infector           07/19/99
  194.         Intended.Mutation         File infector           07/19/99
  195.         Intended.Numbless.512     File infector           07/19/99
  196.         Intended.Silly.142        File infector           07/19/99
  197.         Intended.Tchechen         Boot infector           07/19/99
  198.         Intended.Trivial.1414     File infector           07/19/99
  199.         Intended.Trivial.25       File infector           07/19/99
  200.         INTENDED.TRIVIAL.25.c     File infector           07/19/99
  201.         Intended.Trivial.26       File infector           07/19/99
  202.         INTENDED.TRIVIAL.26.D     File infector           07/19/99
  203.         Intended.Zorm.458         File infector           07/19/99
  204.         Intended.Zorm.464         File infector           07/19/99
  205.         Intended.Zorm.495         File infector           07/19/99
  206.         Intented.Silly.229        File infector           07/19/99
  207.         Karag.2764                File infector           07/19/99
  208.         KE.627                    File infector           08/16/99
  209.         Khizhnjak.Beer.1133       File infector           07/19/99
  210.         Kitana.114                Boot infector           08/16/99
  211.         KKY                       File infector           07/19/99
  212.         Linux.Bliss.b             File infector           08/09/99
  213.         Mahon.1364                File infector           08/16/99
  214.         Nat.4872                  Boot infector           07/19/99
  215.         Nautilus.1716             File infector           07/19/99
  216.         NOBODY.374                File infector           08/02/99
  217.         Nutc.Ab2.2000/3000        File infector           08/16/99
  218.         Nutcracker Family         File infector           08/16/99
  219.         Nutcracker Family (2)     File infector           08/16/99
  220.         Nutcracker Family (3)     File infector           08/16/99
  221.         Nutcracker Family (4)     File infector           08/16/99
  222.         Nutcracker.6000/7000      File infector           08/16/99
  223.         Nutcracker.Bhd            File infector           08/16/99
  224.         Olivia.GR.2374            File infector           07/19/99
  225.         Olivia.GR.Dropper         File infector           07/19/99
  226.         Org.Boot                  Boot infector           07/19/99
  227.         Praios.747                File infector           07/26/99
  228.         PROH.1454                 File infector           08/02/99
  229.         PROH.1454 (x)             File infector           08/02/99
  230.         PWSteal.4564              File infector           08/09/99
  231.         PWSteal.4564 (2)          File infector           08/09/99
  232.         QUAINT.C                  Boot infector           07/19/99
  233.         Rul.336                   File infector           08/16/99
  234.         SAHAND.2406               File infector           07/19/99
  235.         SAMARA.1536               File infector           07/19/99
  236.         Samara.1536 (b)           Boot infector           07/19/99
  237.         SeeYou.A                  Boot infector           07/19/99
  238.         SILLYOC.588               File infector           07/19/99
  239.         SVC.1174.Based            File infector           07/19/99
  240.         SX.749                    File infector           07/19/99
  241.         SX.749 (2)                File infector           07/19/99
  242.         Tazman.706                File infector           07/19/99
  243.         Termite.6585              File infector           08/02/99
  244.         Termite.7800              File infector           08/19/99
  245.         Termite.7800 (2)          File infector           08/19/99
  246.         Tiny.195                  File infector           07/19/99
  247.         TRIVIAL.121               File infector           07/19/99
  248.         TRIVIAL.27.H              File infector           08/02/99
  249.         TRIVIAL.50D               File infector           07/19/99
  250.         TRIVIAL.51A               File infector           07/19/99
  251.         TRIVIAL.52C               File infector           07/19/99
  252.         TRIVIAL.NOX.255           File infector           08/16/99
  253.         Trojan.KillAV             File infector           08/09/99
  254.         Trojan.KillAV (2)         File infector           08/09/99
  255.         Trojan.KillAV (3)         File infector           08/09/99
  256.         Trojan.KillAV (4)         File infector           08/09/99
  257.         Trojan.Shutdown           File infector           08/09/99
  258.         Trojan.Shutdown (2)       File infector           08/09/99
  259.         Trojan.Shutdown (3)       File infector           08/09/99
  260.         TypeII.988                File infector           07/19/99
  261.         Typer.704                 File infector           08/19/99
  262.         VBS.Monopoly              File infector           08/09/99
  263.         VCG.1403                  File infector           07/19/99
  264.         VCG.6609                  File infector           07/19/99
  265.         VCG.6609.Dropper          File infector           07/19/99
  266.         VCG.6638                  File infector           07/19/99
  267.         VCG.6638.Dropper          File infector           07/19/99
  268.         W32.Bolzano               File infector           08/09/99
  269.         W32.Bolzano.D             File infector           08/16/99
  270.         W32.Highway.B             File infector           08/16/99
  271.         W32.Kriz.3740             File infector           08/16/99
  272.         W32.Savior.1680           File infector           08/16/99
  273.         W32.Savior.1904           File infector           08/16/99
  274.         W32.Slow.8192             File infector           08/16/99
  275.         W95.Becoming              File infector           07/26/99
  276.         W95.Bumble.1738           File infector           08/16/99
  277.         W95.CIH.Killer            File infector           07/19/99
  278.         W95.Fabi.B                File infector           08/16/99
  279.         W95.Hllp.Mtv              File infector           08/16/99
  280.         W95.Iced.1412             File infector           08/16/99
  281.         W95.Iced.1617             File infector           08/16/99
  282.         W95.Iced.2112             File infector           08/16/99
  283.         W95.Lud.Jadis.B           File infector           08/16/99
  284.         W95.Mad.2806              File infector           08/16/99
  285.         W95.Manowar               File infector           07/26/99
  286.         W95.Orez                  File infector           08/09/99
  287.         W95.Sab.512               File infector           08/09/99
  288.         W95.Spit                  File infector           07/26/99
  289.         W95.Sysn.Dropper          File infector           07/19/99
  290.         W95.Weird.Dropper         File infector           08/19/99
  291.         W95.Werther               File infector           08/19/99
  292.         W95.Zombie.B (Gen1)       File infector           07/26/99
  293.         W97M.Akuma.A              File infector           08/16/99
  294.         W97M.AntiSocial           File infector           07/19/99
  295.         W97M.Automat.A            File infector           08/02/99
  296.         W97M.Automat.B            File infector           08/02/99
  297.         W97M.Automat.H            File infector           08/09/99
  298.         W97M.Automat.I            File infector           08/09/99
  299.         W97M.Automat.IY           File infector           07/19/99
  300.         W97M.Automat.JC           File infector           07/19/99
  301.         W97M.Automat.K            File infector           08/16/99
  302.         W97M.Automat.L            File infector           08/19/99
  303.         W97M.Automat.LX           File infector           07/26/99
  304.         W97M.Automat.MF           File infector           07/26/99
  305.         W97M.Automat.N            File infector           08/19/99
  306.         W97M.Fabi.B               File infector           08/16/99
  307.         W97M.Fabi.Dropper         File infector           08/16/99
  308.         W97M.India.C              File infector           07/26/99
  309.         W97M.IRCJack.B            File infector           08/02/99
  310.         W97M.Locale.B             File infector           08/16/99
  311.         W97M.Lulung.B             File infector           07/26/99
  312.         W97M.Marker.O             File infector           07/19/99
  313.         W97M.Marker.P             File infector           07/26/99
  314.         W97M.Marker.Q             File infector           07/19/99
  315.         W97M.Snrml                File infector           08/19/99
  316.         W97M.VMPCK1.BM            File infector           08/02/99
  317.         W97M.VMPCK1.BN            File infector           08/02/99
  318.         W97M.Wazzu.FR             File infector           08/09/99
  319.         WIN95.YOUD.1388           File infector           08/16/99
  320.         WM.Automat.IX             File infector           07/19/99
  321.         WM.Automat.JB             File infector           07/19/99
  322.         WM.Automat.LZ             File infector           07/26/99
  323.         WUHAN.3289                File infector           07/19/99
  324.         WUHAN.3289 (x)            File infector           07/19/99
  325.         X97M.Automat.F            File infector           08/09/99
  326.         X97M.Automat.M            File infector           08/19/99
  327.         X97M.Laroux.FO            File infector           07/19/99
  328.         X97M.VCX.F                File infector           08/16/99
  329.         X97M.XLSCAN.A             File infector           07/19/99
  330.         X97M.Xlscan.b             File infector           08/09/99
  331.         XM.Automat.C              File infector           08/02/99
  332.         XM.Automat.D              File infector           08/09/99
  333.         XM.Automat.G              File infector           08/09/99
  334.         XM.Automat.IZ             File infector           07/19/99
  335.         XM.Automat.JM             File infector           07/19/99
  336.         XM.Automat.LK             File infector           07/19/99
  337.         XM.Automat.LL             File infector           07/19/99
  338.         XM.Automat.LW             File infector           07/26/99
  339.         XM.Laroux.CE.var          File infector           08/02/99
  340.         XM.Laroux.ES              File infector           08/02/99
  341.         XM.Laroux.ET              File infector           08/09/99
  342.         XM.Laroux.JH              File infector           08/02/99
  343.         XM.Laroux.JU              File infector           07/19/99
  344.         YLT.2001                  File infector           07/19/99
  345.         ZORM.1120                 File infector           08/16/99
  346.         ZORM.1120 (2)             File infector           08/16/99
  347.         ZORM.1120 (x)             File infector           08/16/99
  348.         Zyrtec.4300               File infector           07/19/99
  349.  
  350. Name Changes:
  351.  
  352.         Old Virus Name            New Virus Name          Date changed
  353.         --------------            --------------          ------------
  354.         Blankey.STCN           to Bloodhound.Unknown      08/09/99
  355.         Deltree.Trojan         to Deltree Trojan #3       07/26/99
  356.         Termite                to Termite.5000.A          08/02/99
  357.         W32.Kriz.3740          to W32.Kriz                08/19/99
  358.         W97M.Automat.B         to W97M.Locale.A           08/09/99
  359.         W97M.Automat.H         to W97M.Cont               08/19/99
  360.         WM.Uka.C               to WM.Uka.Family           07/19/99
  361.  
  362. Deletions:
  363.  
  364.         Virus Name                Infection Type          Date removed
  365.         ----------                --------------          ------------
  366.         HLLP.2783                 File infector           07/26/99
  367.         HLLP.2783 (2)             File infector           07/26/99
  368.         HLLT.7909                 File infector           07/26/99
  369.         HLLT.7909(2)              File infector           07/26/99
  370.         JOPA8.0                   File infector           07/26/99
  371.         Olivia.GR.Dropper         File infector           08/02/99
  372.         PASCASIO.402              File infector           07/26/99
  373.         PASCASIO.402(2)           File infector           07/26/99
  374.         Termite.C                 File infector           08/02/99
  375.         W95.Weird.Dropper         File infector           07/26/99
  376.  
  377. **********************************************************************
  378. **    Enabling/Disabling PowerPoint Scanning                            **
  379. **********************************************************************
  380. PowerPoint Scanning is now enabled by default and can be optionally
  381. disabled.  However, you may want to verify that files with
  382. PowerPoint extensions will be scanned by making sure that your
  383. NAV options have both ".PPT" and ".POT" in the list of extensions
  384. to scan.
  385.  
  386. To disable PowerPoint scanning in NAV for Windows 95/NT
  387. version 4.x or NAV for OS/2, a text file named NAVEX15.INF should
  388. be placed in the directory where NAV 4.x or NAV 5.x is installed
  389. (i.e., C:\Program Files\Norton AntiVirus).
  390.  
  391. To disable PowerPoint scanning in NAV for Netware version 4.x, a text
  392. file named NAVEX15.INF should be placed in the directory where NAV
  393. 4.x is installed (i.e., sys:system\navnlm).
  394.  
  395. To disable PowerPoint scanning in NAV for Windows 95/NT version 2.0,
  396. NAV 4.x for Windows 3.1/DOS, NAVIEG 1.x, or NAVFW 1.x a text file
  397. named NAVEX.INF should be placed in the directory where NAV is
  398. installed (i.e., C:\NAV).
  399.  
  400. The contents of the text file, NAVEX15.INF or NAVEX.INF, determine
  401. which components of NAV have PowerPoint scanning disabled.
  402.  
  403. To disable PowerPoint scanning for a particular component, use the
  404. following table to determine the lines to add to the text file.
  405. PowerPoint scanning can be disabled for more than one component if
  406. needed by adding the required lines for the desired components.
  407.  
  408. +---------------------+--------------------------+--------------------+
  409. |Windows 95/NT scanner|Windows 95/NT auto-protect|DOS scanner         |
  410. +---------------------+--------------------------+--------------------+
  411. |[NAVW32]             |[NAVAP]                   |[NAVDX]             |
  412. |PowerPointScanning=0 |PowerPointScanning=0      |PowerPointScanning=0|
  413. +---------------------+--------------------------+--------------------+
  414.  
  415. +----------------------+--------------------+--------------------+
  416. |Windows 3.1 scanner/AP|Netware scanner         |OS/2 scanner/AP |
  417. +----------------------+--------------------+--------------------+
  418. |[NAVWIN]              |[NAVNLM]            |[NAVOS2]            |
  419. |PowerPointScanning=0  |PowerPointScanning=0|PowerPointScanning=0|
  420. +----------------------+--------------------+--------------------+
  421.  
  422. To enable PowerPoint scanning for a component, delete the lines
  423. added for that component from the NAVEX15.INF or NAVEX.INF file.
  424.  
  425. **********************************************************************
  426. **    Additional Information                                            **
  427. **********************************************************************
  428. SARC has equipped Norton AntiVirus with a new feature called
  429. "Infestation Mode."  If a large number of new or unknown viruses
  430. is found on the system during a scan, Norton AntiVirus will
  431. automatically enable its highest level of detection.  This gives
  432. users the most comprehensive protection in cases where a viral
  433. infestation may have been detected.  If you would like to disable
  434. this feature, you can do so by following these instructions:
  435.  
  436. 1. Create a text File called NAVEX15.INF in your Norton AntiVirus
  437.    directory,e.g., C:\Program Files\Norton AntiVirus. If this file
  438.    already exist go to step two.
  439.  
  440. 2. Place the following lines in this File on the left-hand margin:
  441.  
  442. [NAVW32]
  443. infestmode=0
  444.  
  445. [NAVDX]
  446. infestmode=0
  447.  
  448. 3. Save the File.
  449.  
  450.  
  451. Additional information regarding this virus definitions update can be
  452. found in UPDATE.TXT and TECHNOTE.TXT.
  453.