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From Spork Schivago <sporkschiv...@gmail.com>
Subject Re: [users@httpd] Unknown accepted traffic to my site
Date Thu, 06 Oct 2016 21:21:08 GMT
Thanks Tony!   Much appreciated.

Erik,

Did I ever try to run what on my server?   The string query that Berkeley
sends looking for the malware to respond?   If so, no, I have never tried
to send that carefully crafted packet to my Apache server.   From the
previous user who had what appears to be the same issue as Mitchell though,
I would imagine it'd probably just deliver my default web page
(index.html).   That's my guess though.

If anyone cares, I can copy the other e-mails they sent to me that explain
how it all works and why the full string isn't in the Apache logs (I think
that has something to do with the way Apache responds to the string).

They're not actually trying to exploit the server, they're just trying to
find servers that have been infected.   If the malware sees a special
string, it responds with a special string.   At that point in time, the
college contacts the local law enforcement for that area to inform them and
hope that they contact the owner of the server to inform them that they're
infected.   Not the best way I guess to inform people, but better than
nothing I guess.

Here, in my city, I doubt the local law enforcement would ever contact me
with anything computer related.   I contacted them before because of a
crime that happened in my house but because the internet and a computer was
involved, they said they couldn't help and my best bet would be trying to
contact the FBI or some other government organization.   I doubt anyone at
my police station really knows much about PCs.   There doesn't seem to be a
cyber crimes division or anything like that.

On Thu, Oct 6, 2016 at 4:08 PM, Anthony Biacco <abiacco@handll.com> wrote:

>
>
> On Thu, Oct 6, 2016 at 8:47 AM, Spork Schivago <sporkschivago@gmail.com>
> wrote:
>
>>
>> There's away to do a reverse IP lookup on the IP address and see if
>> there's a DNS entry for it.   That's how I was able to successfully figure
>> out who the senders were (Berkeley) originally.   I used dig I believe.   I
>> don't have access to my Linux box right now, otherwise I'd check to see if
>> the IP addresses are actually from Berkeley.   There's always a chance that
>> they're using more than one server / IP now to conduct the scanning.   I
>> believe they were originally trying to scan the whole internet.
>>
>>
> based on the IP of 169.229.3.91 given by Mitchell:
>
> 91.3.229.169.in-addr.arpa. 9787 IN      PTR
> researchscan1.EECS.Berkeley.EDU.
>
> University of California - Office of the President UCSD-NET-169-228
> (NET-169-229-0-0-1) 169.229.0.0 - 169.233.255.255
> University of California at Berkeley ISTDATA (NET-169-229-0-0-2)
> 169.229.0.0 - 169.229.255.255
>
> -Tony
>
>
>
> They had said it's a very specific type of malware that only affects IIS
>> to their knowledge.   If you're not running a Windows server running IIS,
>> you should be good to go.
>>
>> On Thu, Oct 6, 2016 at 8:27 AM, Rainer Canavan <
>> rainer.canavan@sevenval.com> wrote:
>>
>>> On Wed, Oct 5, 2016 at 6:26 PM, Joe Muller <jmuller@arccorp.com> wrote:
>>> > From the looks of it I would say it is targeting servers running SSL.
>>> Are
>>> > you serving up HTTP or HTTPS ?
>>>
>>> I don't think that that is valid SSL, unless your httpd discards the
>>> first few bytes.
>>> There was a SANS handler diary entry just yesterday about this:
>>>
>>> https://isc.sans.edu/forums/diary/SSL+Requests+to+nonSSL+HTT
>>> P+Servers/21551/
>>>
>>> if I try `openssl s_client -connect localhost:14020`, I get the below
>>> entry in my access.log,
>>> which matches the description in the diary:
>>>
>>> 127.0.0.1 localhost:14020 - - [06/Oct/2016:14:24:53 +0200] -
>>> "\x16\x03\x01\x01,\x01" 400 226 "-" "-"
>>>
>>> this, however, is something completely different. I'd also guess it's
>>> some kind
>>> of vulnerability scan:
>>>
>>> > IP
>>> > 0.0.0.0 - - [02/Oct/2016:11:29:08 +0300]
>>> > "n\x1d\xb6\x18\x9ad\xec[\x1d\b\xe6k\xbb\xe5L" 200 48605
>>> > 0.0.0.0 - - [02/Oct/2016:16:04:20 +0300]
>>> > "\x95\xa3\xb1\xce\xc8\xeb:\x86\x87\xb4\x03g\xfa~\x9f{\x07\xd
>>> a\xef6O\xa1~\x91[\xf2\x05E\xac\xad\x8d\x9d\xbe\xf5\xfc\xc5\"\xed\xa3u"
>>> > 200 48605
>>>
>>> Rainer
>>>
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>>>
>>
>

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