[Snort-users] Suspicious hacker activity detected?

Teo En Ming teo.en.ming at ...11827...
Mon Apr 14 11:24:49 EDT 2014


Hi,

You can download the Snort community rules from
http://www.snort.org/snort-rules/

The OpenSSL heartbleed snort signatures are in the community rules.

Regards,

Teo En Ming


On Mon, Apr 14, 2014 at 11:19 PM, Michael Brown <mike.a.brown09 at ...11827...>wrote:

> Are the heartbleed snort signatures open source or they only for VRT
> subscribers?
>
> ---
> Thank you,
>
> Michael A. Brown
> mike.a.brown09 at ...11827...
> (757) 912-0836
> M.S. Forensic Studies: Computer Forensics
> B.S. Information Technology: Network Specialist
>
> "The only thing necessary for the triumph of evil is for good men to do
> nothing" -Edmund Burke
>
>
> On Mon, Apr 14, 2014 at 11:13 AM, Nicholas Mavis (nmavis) <
> nmavis at ...589...> wrote:
>
>>  Yes, this is a sign and it also looks like you are vulnerable.
>>
>>  Nick
>>
>>   From: Teo En Ming <teo.en.ming at ...11827...>
>> Date: Monday, April 14, 2014 at 11:06 AM
>> To: Snort Users <snort-users at lists.sourceforge.net>
>> Subject: [Snort-users] Suspicious hacker activity detected?
>>
>>    Hi,
>>
>>  My HTTPS web server, POP3S and IMAPS ports were probed for the OpenSSL
>> heartbleed vulnerability without my knowledge and authorization. Is it a
>> sign of hacker activity? Please look at the Snort alerts below.
>>
>> [root at ...274... snort]# grep heartbeat snort.fast | grep -v 161.69.31.4
>> 04/14-04:34:45.168194  [**] [1:30516:6] SERVER-OTHER TLSv1.1 large
>> heartbeat response - possible ssl heartbleed attempt [**] [Classification:
>> Attempted Information Leak] [Priority: 2] {TCP} 192.168.1.146:443 ->
>> 185.35.61.19:41201
>> 04/14-09:31:58.763823  [**] [1:30524:1] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 183.60.243.189:46524 -> 192.168.1.147:993
>> 04/14-09:31:58.764609  [**] [1:30516:6] SERVER-OTHER TLSv1.1 large
>> heartbeat response - possible ssl heartbleed attempt [**] [Classification:
>> Attempted Information Leak] [Priority: 2] {TCP} 192.168.1.147:993 ->
>> 183.60.243.189:46524
>> 04/14-09:31:59.025988  [**] [1:30524:1] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 183.60.243.189:46524 -> 192.168.1.147:993
>> 04/14-09:36:47.578766  [**] [1:30524:1] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 183.60.244.46:55346 -> 192.168.1.147:995
>> 04/14-09:36:47.579841  [**] [1:30516:6] SERVER-OTHER TLSv1.1 large
>> heartbeat response - possible ssl heartbleed attempt [**] [Classification:
>> Attempted Information Leak] [Priority: 2] {TCP} 192.168.1.147:995 ->
>> 183.60.244.46:55346
>> 04/14-09:36:47.775693  [**] [1:30524:1] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 183.60.244.46:55346 -> 192.168.1.147:995
>> 04/14-09:36:47.775693  [**] [1:30512:5] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 183.60.244.46:55346 -> 192.168.1.147:995
>> 04/14-10:13:25.031989  [**] [1:30524:1] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 101.226.19.76:31223 -> 192.168.1.146:443
>> 04/14-10:13:25.032841  [**] [1:30516:6] SERVER-OTHER TLSv1.1 large
>> heartbeat response - possible ssl heartbleed attempt [**] [Classification:
>> Attempted Information Leak] [Priority: 2] {TCP} 192.168.1.146:443 ->
>> 101.226.19.76:31223
>> 04/14-10:13:25.262897  [**] [1:30524:1] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 101.226.19.76:31223 -> 192.168.1.146:443
>> 04/14-10:13:25.262897  [**] [1:30512:5] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 101.226.19.76:31223 -> 192.168.1.146:443
>> 04/14-11:51:26.034725  [**] [1:30524:1] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 180.153.198.190:25521 -> 192.168.1.147:993
>> 04/14-11:51:26.035167  [**] [1:30516:6] SERVER-OTHER TLSv1.1 large
>> heartbeat response - possible ssl heartbleed attempt [**] [Classification:
>> Attempted Information Leak] [Priority: 2] {TCP} 192.168.1.147:993 ->
>> 180.153.198.190:25521
>> 04/14-11:51:26.232356  [**] [1:30524:1] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 180.153.198.190:25521 -> 192.168.1.147:993
>> 04/14-11:51:26.232356  [**] [1:30512:5] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 180.153.198.190:25521 -> 192.168.1.147:993
>> 04/14-12:01:46.374268  [**] [1:30524:1] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 180.153.198.219:50214 -> 192.168.1.147:995
>> 04/14-12:01:46.375062  [**] [1:30516:6] SERVER-OTHER TLSv1.1 large
>> heartbeat response - possible ssl heartbleed attempt [**] [Classification:
>> Attempted Information Leak] [Priority: 2] {TCP} 192.168.1.147:995 ->
>> 180.153.198.219:50214
>> 04/14-12:01:46.597640  [**] [1:30524:1] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 180.153.198.219:50214 -> 192.168.1.147:995
>> 04/14-12:01:46.597640  [**] [1:30512:5] SERVER-OTHER OpenSSL TLSv1.1
>> heartbeat read overrun attempt [**] [Classification: Attempted Information
>> Leak] [Priority: 2] {TCP} 180.153.198.219:50214 -> 192.168.1.147:995
>>
>>  Yours sincerely,
>>
>>  Teo En Ming
>>
>>
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>
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