Snort mailing list archives

Re: Suspicious hacker activity detected?


From: "Joel Esler (jesler)" <jesler () cisco com>
Date: Mon, 14 Apr 2014 15:46:19 +0000

Sounds like a question for Red Hat support.

--
Joel Esler
Sent from my iPhone

On Apr 14, 2014, at 11:41, "Teo En Ming" <teo.en.ming () gmail com> wrote:


Dear Nicholas Mavis,

I have patched openssl on Centos 6.5 x86_64. However, I cannot patch openssl on my RHEL 7 Beta because I don't have a 
Red Hat Network subscription. What do you think can be done?

Thank you.

Regards,

Teo En Ming


On Mon, Apr 14, 2014 at 11:13 PM, Nicholas Mavis (nmavis) <nmavis () cisco com> wrote:
Yes, this is a sign and it also looks like you are vulnerable.

Nick

From: Teo En Ming <teo.en.ming () gmail com>
Date: Monday, April 14, 2014 at 11:06 AM
To: Snort Users <snort-users () 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@localhost 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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Learn Graph Databases - Download FREE O'Reilly Book
"Graph Databases" is the definitive new guide to graph databases and their
applications. Written by three acclaimed leaders in the field,
this first edition is now available. Download your free book today!
http://p.sf.net/sfu/NeoTech
_______________________________________________
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Go to this URL to change user options or unsubscribe:
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