SMTP Attacks?
Tim Mapes <[email protected]> Fri, 1 Apr 2005 10:46:57 -0500
| Newsgroups | gmane.comp.security.ntbugtraq |
|---|---|
| Message-ID | <NTBUGTRAQ%[email protected]> |
Has anyone seen this showing up in there SMTP server logs? Tim Mapes Fri 2005-04-01 04:55:55: Accepting SMTP connection from [217.128.81.65 : 3775] Fri 2005-04-01 04:55:55: Looking up PTR record for 217.128.81.65 (65.81.128.217.IN-ADDR.ARPA) Fri 2005-04-01 04:55:55: D=65.81.128.217.IN-ADDR.ARPA TTL=(1439) PTR=[areims-105-2-1-65.w217-128.abo.wanadoo.fr] Fri 2005-04-01 04:55:55: Gathering A-records for PTR hosts Fri 2005-04-01 04:55:55: D=areims-105-2-1-65.w217-128.abo.wanadoo.fr TTL=(1440) A=[217.128.81.65] Fri 2005-04-01 04:55:55: --> 220 combine.com ESMTP MDaemon 7.2.3; Fri, 01 Apr 2005 04:55:55 -0500 Fri 2005-04-01 04:55:55: <-- POST / HTTP/1.0 Fri 2005-04-01 04:55:55: --> 500 What? I don't understand that. Fri 2005-04-01 04:55:55: <-- Host: combine.com:25 Fri 2005-04-01 04:55:55: --> 500 What? I don't understand that. Fri 2005-04-01 04:55:55: <-- Content-Length: 3384 Fri 2005-04-01 04:55:55: --> 500 What? I don't understand that. Fri 2005-04-01 04:55:55: <-- Content-Type: text/plain Fri 2005-04-01 04:55:55: Too many errors encountered Fri 2005-04-01 04:55:55: SMTP session terminated (Bytes in/out: 3473/178) Fri 2005-04-01 04:55:59: Accepting SMTP connection from [62.58.60.74 : 2421] Fri 2005-04-01 04:55:59: Looking up PTR record for 62.58.60.74 (74.60.58.62.IN-ADDR.ARPA) Fri 2005-04-01 04:55:59: Name server reports domain name unknown Fri 2005-04-01 04:55:59: --> 220 combine.com ESMTP MDaemon 7.2.3; Fri, 01 Apr 2005 04:55:59 -0500 Fri 2005-04-01 04:55:59: <-- POST / HTTP/1.0 Fri 2005-04-01 04:55:59: --> 500 What? I don't understand that. Fri 2005-04-01 04:55:59: <-- Via: 1.0 CI00094 Fri 2005-04-01 04:55:59: --> 500 What? I don't understand that. Fri 2005-04-01 04:55:59: <-- Host: combine.com Fri 2005-04-01 04:55:59: --> 500 What? I don't understand that. Fri 2005-04-01 04:55:59: <-- Content-Length: 3487 Fri 2005-04-01 04:55:59: Too many errors encountered Fri 2005-04-01 04:55:59: SMTP session terminated (Bytes in/out: 3615/178) Fri 2005-04-01 09:46:01: Accepting SMTP connection from [202.83.175.98 : 31635] Fri 2005-04-01 09:46:01: Looking up PTR record for 202.83.175.98 (98.175.83.202.IN-ADDR.ARPA) Fri 2005-04-01 09:46:01: D=98.175.83.202.IN-ADDR.ARPA TTL=(1440) PTR=[ntc.net.pk] Fri 2005-04-01 09:46:01: Gathering A-records for PTR hosts Fri 2005-04-01 09:46:01: D=ntc.net.pk TTL=(0) A=[202.83.167.223] Fri 2005-04-01 09:46:01: --> 220 combine.com ESMTP MDaemon 7.2.3; Fri, 01 Apr 2005 09:46:01 -0500 Fri 2005-04-01 09:46:01: <-- POST / HTTP/1.0 Fri 2005-04-01 09:46:01: --> 500 What? I don't understand that. Fri 2005-04-01 09:46:01: <-- Via: 1.0 PROXY Fri 2005-04-01 09:46:01: --> 500 What? I don't understand that. Fri 2005-04-01 09:46:01: <-- Host: combine.com:25 Fri 2005-04-01 09:46:01: --> 500 What? I don't understand that. Fri 2005-04-01 09:46:01: <-- Content-Length: 929 Fri 2005-04-01 09:46:01: Too many errors encountered Fri 2005-04-01 09:46:01: SMTP session terminated (Bytes in/out: 128/178) Fri 2005-04-01 09:46:36: Accepting SMTP connection from [81.115.31.217 : 4200] Fri 2005-04-01 09:46:36: Looking up PTR record for 81.115.31.217 (217.31.115.81.IN-ADDR.ARPA) Fri 2005-04-01 09:46:36: D=217.31.115.81.IN-ADDR.ARPA TTL=(1440) PTR=[host217-31.pool81115.interbusiness.it] Fri 2005-04-01 09:46:36: Gathering A-records for PTR hosts Fri 2005-04-01 09:46:36: D=host217-31.pool81115.interbusiness.it TTL=(1440) A=[81.115.31.217] Fri 2005-04-01 09:46:36: --> 220 combine.com ESMTP MDaemon 7.2.3; Fri, 01 Apr 2005 09:46:36 -0500 Fri 2005-04-01 09:46:36: <-- POST / HTTP/1.0 Fri 2005-04-01 09:46:36: --> 500 What? I don't understand that. Fri 2005-04-01 09:46:36: <-- Via: 1.0 SERVER-NT Fri 2005-04-01 09:46:36: --> 500 What? I don't understand that. Fri 2005-04-01 09:46:36: <-- Host: combine.com Fri 2005-04-01 09:46:36: --> 500 What? I don't understand that. Fri 2005-04-01 09:46:36: <-- Content-Length: 1075 Fri 2005-04-01 09:46:36: Too many errors encountered Fri 2005-04-01 09:46:36: SMTP session terminated (Bytes in/out: 1205/178) Fri 2005-04-01 09:49:10: Accepting SMTP connection from [167.7.127.180 : 50981] Fri 2005-04-01 09:49:10: Looking up PTR record for 167.7.127.180 (180.127.7.167.IN-ADDR.ARPA) Fri 2005-04-01 09:49:10: Name server reports domain name unknown Fri 2005-04-01 09:49:10: --> 220 u4ya.com ESMTP MDaemon 7.2.3; Fri, 01 Apr 2005 09:49:10 -0500 Fri 2005-04-01 09:49:10: <-- POST / HTTP/1.0 Fri 2005-04-01 09:49:10: --> 500 What? I don't understand that. Fri 2005-04-01 09:49:10: <-- Via: 1.0 WILGOSBDC Fri 2005-04-01 09:49:10: --> 500 What? I don't understand that. Fri 2005-04-01 09:49:10: <-- Host: u4ya.com:25 Fri 2005-04-01 09:49:10: --> 500 What? I don't understand that. Fri 2005-04-01 09:49:10: <-- Content-Length: 918 Fri 2005-04-01 09:49:10: Too many errors encountered Fri 2005-04-01 09:49:10: SMTP session terminated (Bytes in/out: 1047/175) Fri 2005-04-01 09:49:43: Accepting SMTP connection from [201.6.102.4 : 3317] Fri 2005-04-01 09:49:43: Looking up PTR record for 201.6.102.4 (4.102.6.201.IN-ADDR.ARPA) Fri 2005-04-01 09:49:43: D=4.102.6.201.IN-ADDR.ARPA TTL=(59) PTR=[c9066604.virtua.com.br] Fri 2005-04-01 09:49:43: Gathering A-records for PTR hosts Fri 2005-04-01 09:49:43: D=c9066604.virtua.com.br TTL=(60) A=[201.6.102.4] Fri 2005-04-01 09:49:43: --> 220 u4ya.com ESMTP MDaemon 7.2.3; Fri, 01 Apr 2005 09:49:43 -0500 Fri 2005-04-01 09:49:43: <-- POST / HTTP/1.0 Fri 2005-04-01 09:49:43: --> 500 What? I don't understand that. Fri 2005-04-01 09:49:43: <-- Content-Type: text/plain Fri 2005-04-01 09:49:43: --> 500 What? I don't understand that. Fri 2005-04-01 09:49:43: <-- Content-Length: 925 Fri 2005-04-01 09:49:43: --> 500 What? I don't understand that. Fri 2005-04-01 09:49:43: <-- Fri 2005-04-01 09:49:43: Too many errors encountered Fri 2005-04-01 09:49:43: SMTP session terminated (Bytes in/out: 993/175) Fri 2005-04-01 09:49:50: Accepting SMTP connection from [211.78.176.252 : 50889] Fri 2005-04-01 09:49:50: Looking up PTR record for 211.78.176.252 (252.176.78.211.IN-ADDR.ARPA) Fri 2005-04-01 09:49:50: D=252.176.78.211.IN-ADDR.ARPA TTL=(1439) PTR=[adsl-211-78-176-252.hcon.sparqnet.net] Fri 2005-04-01 09:49:50: Gathering A-records for PTR hosts Fri 2005-04-01 09:49:50: D=adsl-211-78-176-252.hcon.sparqnet.net TTL=(1440) A=[211.78.176.252] Fri 2005-04-01 09:49:50: --> 220 u4ya.com ESMTP MDaemon 7.2.3; Fri, 01 Apr 2005 09:49:50 -0500 Fri 2005-04-01 09:49:50: <-- POST / HTTP/1.0 Fri 2005-04-01 09:49:50: --> 500 What? I don't understand that. Fri 2005-04-01 09:49:50: <-- Via: 1.0 ISA Fri 2005-04-01 09:49:50: --> 500 What? I don't understand that. Fri 2005-04-01 09:49:50: <-- Host: u4ya.com:25 Fri 2005-04-01 09:49:50: --> 500 What? I don't understand that. Fri 2005-04-01 09:49:50: <-- Content-Length: 932 Fri 2005-04-01 09:49:50: Too many errors encountered Fri 2005-04-01 09:49:50: SMTP session terminated (Bytes in/out: 1055/175) -- NTBugtraq Editor's Note: Most viruses these days use spoofed email addresses. As such, using an Anti-Virus product which automatically notifies the perceived sender of a message it believes is infected may well cause more harm than good. Someone who did not actually send you a virus may receive the notification and scramble their support staff to find an infection which never existed in the first place. Suggest such notifications be disabled by whomever is responsible for your AV, or at least that the idea is considered. --