Port Scanner in PERL
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  1. #1
    AO BOFH: Luser Abuser BModeratorFH gore's Avatar
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    Lightbulb Port Scanner in PERL



    -----

    Code:
    #!/usr/bin/perl
    
    ## This Script is free for all. Please feel free to distribute it to all of your friends! I do not warantee this program
    ## in any way or for any reason, if it blows up and ruins your entire business database, I accept no responsibility!
    ## Please email cronus@pcis.net with any problems or comments.
    
    ## NOTE: This is not meant to run on anything but linux with perl 5.0 or greater, if you need to to run on win32
    ## good luck!
    
    use IO::Socket;
    my $VERSION = '1.0';
    my ( $peer, $port );
    
    ##look for server argument or display usage
    ( $peer = $ARGV[0] ) || &usage;
    
    ##assign port description hash
    my %connected = split /:/,
    "tcpmux:1:compressnet:2:compressnet:3:rje:5:echo:7:discard:9:systat:11:daytime:13:qotd:17:msp:18:chargen:19:ftp-data:20:ftp:21:ssh:22:telnet:23:smtp:25:nsw-fe:27:msg-icp:29:msg-auth:31:dsp:33:time:37:rap:38:rlp:39:graphics:41:name:42:nameserver:42:nicname:43:mpm-flags:44:mpm:45:mpm-snd:46:ni-ftp:47:auditd:48:tacacs:49:re-mail-ck:50:la-maint:51:xns-time:52:domain:53:xns-ch:54:isi-gl:55:xns-auth:56:xns-mail:58:ni-mail:61:acas:62:whois++:63:covia:64:tacacs-ds:65:sql*net:66:bootps:67:bootpc:68:tftp:69:gopher:70:netrjs-1:71:netrjs-2:72:netrjs-3:73:netrjs-4:74:deos:76:vettcp:78:finger:79:http:80:www:80:www-http:80:hosts2-ns:81:xfer:82:mit-ml-dev:83:ctf:84:mit-ml-dev:85:mfcobol:86:kerberos:88:su-mit-tg:89:dnsix:90:mit-dov:91:npp:92:dcp:93:objcall:94:supdup:95:dixie:96:swift-rvf:97:tacnews:98:metagram:99:newacct:100:hostname:101:gppitnp:103:cso:105:csnet-ns:105:3com-tsmux:106:rtelnet:107:snagas:108:sunrpc:111:mcidas:112:ident:113:auth:113:audionews:114:sftp:115:ansanotify:116:uucp-path:117:sqlserv:118:nntp:119:cfdptkt:120:erpc:121:smakynet:122:ntp:123:ansatrader:124:locus-map:125:nxedit:126:locus-con:127:gss-xlicen:128:pwdgen:129:cisco-fna:130:cisco-tna:131:cisco-sys:132:statsrv:133:ingres-net:134:epmap:135:profile:136:netbios-ns:137:netbios-dgm:138:netbios-ssn:139:emfis-data:140:emfis-cntl:141:bl-idm:142:imap:143:uma:144:uaac:145:iso-ip:147:jargon:148:aed-512:149:sql-net:150:hems:151:bftp:152:sgmp:153:netsc-prod:154:netsc-dev:155:sqlsrv:156:knet-cmp:157:pcmail-srv:158:nss-routing:159:sgmp-traps:160:snmp:161:snmptrap:162:cmip-man:163:cmip-agent:164:xns-courier:165:s-net:166:namp:167:rsvd:168:send:169:print-srv:170:multiplex:171:xyplex-mux:173:mailq:174:vmnet:175:genrad-mux:176:xdmcp:177:nextstep:178:bgp:179:ris:180:unify:181:audit:182:ocbinder:183:ocserver:184:remote-kis:185:kis:186:aci:187:mumps:188:qft:189:gacp:190:prospero:191:osu-nms:192:srmp:193:irc:194:dn6-nlm-aud:195:dn6-smm-red:196:dls:197:dls-mon:198:smux:199:src:200:at-rtmp:201:at-nbp:202:at-3:203:at-echo:204:at-5:205:at-zis:206:at-7:207:at-8:208:qmtp:209:anet:212:ipx:213:vmpwscs:214:softpc:215:CAIlic:216:dbase:217:mpp:218:uarps:219:fln-spx:221:rsh-spx:222:cdc:223:masqdialer:224:direct:242:sur-meas:243:dayna:244:link:245:dsp3270:246:subntbcst_tftp:247:bhfhs:248:rap:256:set:257:yak-chat:258:esro-gen:259:openport:260:nsiiops:261:arcisdms:262:hdap:263:bgmp:264:http-mgmt:280:personal-link:281:cableport-ax:282:rescap:283:corerjd:284:novastorbakcup:308:entrusttime:309:bhmds:310:asip-webadmin:311:vslmp:312:magenta-logic:313:opalis-robot:314:dpsi:315:decauth:316:zannet:317:pkix-timestamp:318:ptp-event:319:ptp-general:320:pip:321:rtsps:322:pdap:344:pawserv:345:zserv:346:fatserv:347:csi-sgwp:348:mftp:349:matip-type-a:350:matip-type-b:351:bhoetty:351:dtag-ste-sb:352:bhoedap4:352:ndsauth:353:datex-asn:355:bhevent:357:shrinkwrap:358:tenebris_nts:359:scoi2odialog:360:semantix:361:srssend:362:rsvp_tunnel:363:aurora-cmgr:364:dtk:365:odmr:366:mortgageware:367:qbikgdp:368:rpc2portmap:369:clearcase:371:ulistproc:372:legent-1:373:legent-2:374:hassle:375:nip:376:tnETOS:377:dsETOS:378:is99c:379:is99s:380:hp-collector:381:hp-managed-node:382:hp-alarm-mgr:383:arns:384:ibm-app:385:asa:386:aurp:387:ldap:389:uis:390:synotics-relay:391:synotics-broker:392:dis:393:embl-ndt:394:netcp:395:netware-ip:396:mptn:397:kryptolan:398:iso-tsap-c2:399:work-sol:400:ups:401:genie:402:decap:403:nced:404:ncld:405:imsp:406:timbuktu:407:prm-sm:408:prm-nm:409:decladebug:410:rmt:411:synoptics-trap:412:smsp:413:infoseek:414:bnet:415:silverplatter:416:onmux:417:hyper-g:418:ariel1:419:smpte:420:ariel2:421:ariel3:422:opc-job-start:423:opc-job-track:424:icad-el:425:smartsdp:426:svrloc:427:ocs_cmu:428:ocs_amu:429:utmpsd:430:utmpcd:431:iasd:432:nnsp:433:mobileip-agent:434:mobilip-mn:435:dna-cml:436:comscm:437:dsfgw:438:dasp:439:sgcp:440:decvms-sysmgt:441:cvc_hostd:442:https:443:snpp:444:microsoft-ds:445:ddm-rdb:446:ddm-dfm:447:ddm-ssl:448:as-servermap:449:tserver:450:sfs-smp-net:451:sfs-config:452:creativeserver:453:contentserver:454:creativepartnr:455:macon-tcp:456:scohelp:457:appleqtc:458:ampr-rcmd:459:skronk:460:datasurfsrv:461:datasurfsrvsec:462:alpes:463:kpasswd:464:digital-vrc:466:mylex-mapd:467:photuris:468:rcp:469:scx-proxy:470:mondex:471:ljk-login:472:hybrid-pop:473:tcpnethaspsrv:475:ss7ns:477:spsc:478:iafserver:479:iafdbase:480:ph:481:bgs-nsi:482:ulpnet:483:integra-sme:484:powerburst:485:avian:486:saft:487:gss-http:488:nest-protocol:489:micom-pfs:490:go-login:491:ticf-1:492:ticf-2:493:pov-ray:494:intecourier:495:pim-rp-disc:496:dantz:497:siam:498:iso-ill:499:isakmp:500:stmf:501:asa-appl-proto:502:intrinsa:503:citadel:504:mailbox-lm:505:ohimsrv:506:crs:507:xvttp:508:snare:509:fcp:510:passgo:511:exec:512:login:513:shell:514:printer:515:videotex:516:talk:517:ntalk:518:utime:519:efs:520:ripng:521:ulp:522:ncp:524:timed:525:tempo:526:stx:527:custix:528:irc-serv:529:courier:530:conference:531:netnews:532:netwall:533:mm-admin:534:iiop:535:opalis-rdv:536:nmsp:537:gdomap:538:apertus-ldp:539:uucp:540:uucp-rlogin:541:commerce:542:klogin:543:kshell:544:appleqtcsrvr:545:dhcpv6-client:546:dhcpv6-server:547:afpovertcp:548:idfp:549:new-rwho:550:cybercash:551:deviceshare:552:pirp:553:rtsp:554:dsf:555:remotefs:556:openvms-sysipc:557:sdnskmp:558:teedtap:559:rmonitor:560:monitor:561:chshell:562:nntps:563:9pfs:564:whoami:565:streettalk:566:banyan-rpc:567:ms-shuttle:568:ms-rome:569:meter:570:meter:571:sonar:572:banyan-vip:573:ftp-agent:574:vemmi:575:ipcd:576:vnas:577:ipdd:578:decbsrv:579:sntp-heartbeat:580:bdp:581:scc-security:582:philips-vc:583:keyserver:584:imap4-ssl:585:password-chg:586:submission:587:cal:588:eyelink:589:tns-cml:590:http-alt:591:eudora-set:592:http-rpc-epmap:593:tpip:594:cab-protocol:595:smsd:596:ptcnameservice:597:acp:599:ipcserver:600:urm:606:nqs:607:sift-uft:608:npmp-trap:609:npmp-local:610:npmp-gui:611:hmmp-ind:612:hmmp-op:613:sshell:614:sco-inetmgr:615:sco-sysmgr:616:sco-dtmgr:617:dei-icda:618:digital-evm:619:sco-websrvrmgr:620:escp-ip:621:collaborator:622:aux_bus_shunt:623:cryptoadmin:624:dec_dlm:625:asia:626:passgo-tivoli:627:qmqp:628:rda:630:ipp:631:bmpp:632:servstat:633:ginad:634:rlzdbase:635:ldaps:636:lanserver:637:mcns-sec:638:msdp:639:entrust-sps:640:repcmd:641:sanity:643:dwr:644:pssc:645:ldp:646:dhcp-failover:647:rrp:648:aminet:649:obex:650:ieee-mms:651:udlr-dtcp:652:repscmd:653:aodv:654:tinc:655:spmp:656:rmc:657:tenfold:658:url-rendezvous:659:mac-srvr-admin:660:hap:661:pftp:662:purenoise:663:mdqs:666:doom:666:disclose:667:mecomm:668:meregister:669:vacdsm-sws:670:vacdsm-app:671:vpps-qua:672:cimplex:673:acap:674:dctp:675:vpps-via:676:vpp:677:ggf-ncp:678:mrm:679:entrust-aaas:680:entrust-aams:681:xfr:682:corba-iiop:683:corba-iiop-ssl:684:mdc-portmapper:685:hcp-wismar:686:asipregistry:687:realm-rusd:688:elcsd:704:agentx:705:borland-dsj:707:entrust-kmsh:709:entrust-ash:710:cisco-tdp:711:netviewdm1:729:netviewdm2:730:netviewdm3:731:netgw:741:netrcs:742:flexlm:744:fujitsu-dev:747:ris-cm:748:kerberos-adm:749:rfile:750:pump:751:qrh:752:rrh:753:tell:754:nlogin:758:con:759:ns:760:rxe:761:quotad:762:cycleserv:763:omserv:764:webster:765:phonebook:767:vid:769:cadlock:770:rtip:771:cycleserv2:772:submit:773:rpasswd:774:entomb:775:wpages:776:multiling-http:777:wpgs:780:concert:786:qsc:787:mdbs_daemon:800:device:801:fcp-udp:810:itm-mcell-s:828:pkix-3-ca-ra:829:rsync:873:iclcnet-locate:886:iclcnet_svinfo:887:accessbuilder:888:cddbp:888:omginitialrefs:900:xact-backup:911:ftps-data:989:ftps:990:nas:991:telnets:992:imaps:993:ircs:994:pop3s:995:vsinet:996:maitrd:997:busboy:998:garcon:999:puprouter:999:cadlock:1000:surf:1010:";
    %connected = reverse %connected;
    
    ##sort and assign hash index array
    my @ports = sort by_number keys %connected;
    
    ##look for list argument
    &list if $ARGV[0] eq "list";
    
    ##attempt to connect to all ports in hash index, then display open ports
    foreach $port (@ports) {
        $sock = IO::Socket::INET->new("$peer:$port");
        print "\nPort $port $connected{$port} open\n" if ($sock);
    }
    print "Done.\n";
    exit;
    
    ##usage sub
    sub usage {
        print "
      Portscanner 1.0
    
      Usage: portscan <server>
             portscan list\n\n";
        exit;
    }
    
    ##list sub
    sub list {
        foreach $port (@ports) {
            print "Port $port $connected{$port}\n";
        }
        exit;
    }
    
    ##hash index sort sub
    sub by_number {
        if ( $a < $b ) { -1 }
        elsif ( $a > $b ) { 1 }
        else { 0 }
    }
    
    =head1 NAME
    
    Portscanner 1.0 - Reports listening ports and their associated service
    
    =head1 Author
    
    James Loope, cronus@pcis.net
    
    =head1 Copyright
    
    Do with it what you please.
    
    =head1 DESCRIPTION
    
    See README
    
    =head1 README
    
    A portscanner for those of us who haven't memorized the common ports map. It scans all common
    ports between 1 and 1023 and reports open ports and their common use.
    
    =head1 PREREQUISITES
    
    This script requires IO::Socket
    
    =pod OSNAMES
    
    Linux
    
    =pod SCRIPT CATEGORIES
    
    Networking
    
    =cut

    EDIT:

    I'm so going to bed after this, lol, anyway, I posted because for one, I'm learning PERL, (Awwww, I finally stuck with a coding language... Sort of) And anyway, I wanted to post this and show people and of course, it allows me to read this and maybe edit it to make it do other things (like it could scan more ports and of course this would be fun for me to do and repost how I did it).

    Remember I'm not a programmer, and I don't code much, I like PERL, and I did kind of.... OK so I can understand some C and C++.... And once I did get some crap working in this weird C script stuff I found online, but this is it, I don't do a lot in coding, but I'm starting somewhere now, and I like Networking so I'm trying to keep it close.
    Kill the lights, let the candles burn behind the pumpkins’ mischievous grins, and let the skeletons dance. For one thing is certain, The Misfits have returned and once again everyday is Halloween.The Misfits FreeBSD
    Cannibal Holocaust
    SuSE Linux
    Slackware Linux

  2. #2
    Senior Member
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    Maybe note somewhere that this is a TCP port scanner only?
    You could also have it read the services from /etc/services if it exists, and then default to its own built-in list if it doesn't.
    Chris Shepherd
    The Nelson-Shepherd cutoff: The point at which you realise someone is an idiot while trying to help them.
    \"Well as far as the spelling, I speak fluently both your native languages. Do you even can try spell mine ?\" -- Failed Insult
    Is your whole family retarded, or did they just catch it from you?

  3. #3
    Just Another Geek
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    It should run fine on win32 btw. ActivePerl at least has IO::Socket.. Works the same as it's *nix cousin.

    Perl rulez!
    Oliver's Law:
    Experience is something you don't get until just after you need it.

  4. #4
    AO BOFH: Luser Abuser BModeratorFH gore's Avatar
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    Chsh: Thanks for the ideas man. Appreciated.


    SD: Heh, I have to agree, PERL rockssors.
    Kill the lights, let the candles burn behind the pumpkins’ mischievous grins, and let the skeletons dance. For one thing is certain, The Misfits have returned and once again everyday is Halloween.The Misfits FreeBSD
    Cannibal Holocaust
    SuSE Linux
    Slackware Linux

  5. #5
    Jaded Network Admin nebulus200's Avatar
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    You could probably change how you do the socket a little bit, take an extra cmd line argument and do UDP as well...rest of the code could for the most part remain unchanged. And as far as a personal preference thing, would probably either reference /etc/services for the defined ports or keep a separate file so it didn't fill up your source so much (then just read the file in, for example $infile = (-f /etc/services) ? "/etc/services" | "myservices.txt"; and then just read infile (your services file would be myservices.txt if the file isn't found).

    /neb
    There is only one constant, one universal, it is the only real truth: causality. Action. Reaction. Cause and effect...There is no escape from it, we are forever slaves to it. Our only hope, our only peace is to understand it, to understand the 'why'. 'Why' is what separates us from them, you from me. 'Why' is the only real social power, without it you are powerless.

    (Merovingian - Matrix Reloaded)

  6. #6
    AO BOFH: Luser Abuser BModeratorFH gore's Avatar
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    Thanks much I found this and was like wow this is something I could make into a neat project and would help me learn Perl much better and I've wanted to make a port scanner anyway to learn more about how a program works with TCP and things... Heh
    Kill the lights, let the candles burn behind the pumpkins’ mischievous grins, and let the skeletons dance. For one thing is certain, The Misfits have returned and once again everyday is Halloween.The Misfits FreeBSD
    Cannibal Holocaust
    SuSE Linux
    Slackware Linux

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