Using http as mail spam engine

[Justin W]

John Summerfield wrote:
> Ashley M. Kirchner wrote:
>>
>>    I noticed these entries in my apache log today:
>>
>>    60.250.66.175 - - [01/Nov/2007:04:41:01 -0600] "CONNECT 
>> 218.32.192.11:25 HTTP/1.0" 200 12439 "-" "-"
>>    60.250.66.175 - - [01/Nov/2007:04:41:04 -0600] "CONNECT 
>> 61.31.198.50:25 HTTP/1.0" 200 12439 "-" "-"
>>    60.250.66.175 - - [01/Nov/2007:04:43:28 -0600] "CONNECT 
>> 60.249.125.71:25 HTTP/1.0" 200 12439 "-" "-"
>>    159.148.97.91 - - [02/Nov/2007:22:01:40 -0600] "CONNECT 
>> 195.175.37.70:8080 HTTP/1.0" 200 14301 "-" "-"
>>    159.148.97.91 - - [02/Nov/2007:22:01:41 -0600] "CONNECT 
>> 159.148.96.222:80 HTTP/1.0" 200 14301 "-" "-"
>>
>>    And while the first two are specifically targeting port 25, the 
>> other two aren't  But more importantly, how is this being done, and 
>> how do I stop it?  Did I forgot to disable something within Apache 
>> somewhere?
>>
>
> I don't like those "200" responses you're giving out.
> I suggest you have a close look at your limit (and limitexcept) 
> clauses, and read the relevant docs at www.apache.org.
>
> I don't know how to do CONNECT connexions except for https, but I 
> gather it's a generic tunneling mechanism, and for sure I don't know 
> everything, esp about this, but I'd be every bit as suspicious about 
> that as you are.
>
I may be mistaken, but I /think/ CONNECT commands are used when 
accessing the web through a proxy, so basically I /think/ somebody is 
hoping to use you as a proxy which they can bounce traffic through 
anonymously.