alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent|3a| Mozilla/4.0+(compatible|3b|+MSIE+/"; http_header; fast_pattern:23,20; metadata: former_category MALWARE; reference:url,doc.emergingthreats.net/2003530; classtype:trojan-activity; sid:2003530; rev:14; metadata:created_at 2010_07_30, updated_at 2017_10_27;) Added 2018-09-13 19:38:51 UTC
Added 2018-09-13 17:53:17 UTC
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent|3a| Mozilla/4.0+(compatible|3b|+MSIE+/"; http_header; fast_pattern:23,20; metadata: former_category MALWARE; reference:url,doc.emergingthreats.net/2003530; classtype:trojan-activity; sid:2003530; rev:14; metadata:created_at 2010_07_30, updated_at 2017_10_27;) Added 2017-10-27 16:27:01 UTC False positives on Mozilla/4.0 URL = ct.duba.net/s/ut/?16892 ContentType? = application/x-www-form-urlencoded Command = POST StatusCode? = 200 Host = ct.duba.net UserAgent? = Mozilla/4.0 Connection = keep-alive Server = Kingsoft Web Server -- JonBelanger - 2017-12-21
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent|3a| Mozilla/4.0+(compatible|3b|+MSIE+/"; http_header; fast_pattern:23,20; reference:url,doc.emergingthreats.net/2003530; classtype:trojan-activity; sid:2003530; rev:13; metadata:created_at 2010_07_30, updated_at 2010_07_30;) Added 2017-08-07 20:56:46 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent|3a| Mozilla/4.0+(compatible|3b|+MSIE+/"; fast_pattern:23,20; http_header; reference:url,doc.emergingthreats.net/2003530; classtype:trojan-activity; sid:2003530; rev:11;) Added 2011-12-15 18:09:19 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET USER_AGENTS Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent|3a| Mozilla/4.0+(compatible|3b|+MSIE+/"; http_header; reference:url,doc.emergingthreats.net/2003530; classtype:trojan-activity; sid:2003530; rev:10;) Added 2011-10-12 19:13:38 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET USER_AGENTS Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent|3a| Mozilla/4.0+(compatible|3b|+MSIE+/"; http_header; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; sid:2003530; rev:10;) Added 2011-09-14 22:26:37 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET USER_AGENTS Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent|3a| Mozilla/4.0+(compatible|3b|+MSIE+/"; http_header; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/USER_AGENTS/USER_AGENTS_Suspicious; sid:2003530; rev:10;) Added 2011-02-04 17:22:31 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET USER_AGENTS Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/USER_AGENTS/USER_AGENTS_Suspicious; sid:2003530; rev:6;) Added 2009-10-19 09:15:43 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET USER_AGENTS Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/USER_AGENTS/USER_AGENTS_Suspicious; sid:2003530; rev:6;) Added 2009-10-19 09:15:43 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/MALWARE/MALWARE_USER_Agents; sid:2003530; rev:4;) Added 2009-02-09 21:30:24 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/MALWARE/MALWARE_USER_Agents; sid:2003530; rev:4;) Added 2009-02-09 21:30:24 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/MALWARE/MALWARE_USER_Agents; sid:2003530; rev:4;) Added 2009-02-09 21:29:25 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/MALWARE/MALWARE_USER_Agents; sid:2003530; rev:4;) Added 2009-02-09 21:29:25 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; sid:2003530; rev:3;) Added 2008-01-28 17:24:21 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; sid:2003530; rev:3;) Added 2008-01-28 17:24:21 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"BLEEDING-EDGE MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; sid:2003530; rev:2;) Added 2008-01-09 17:42:41 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"BLEEDING-EDGE MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; sid:2003530; rev:2;) Added 2008-01-09 17:42:41 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"BLEEDING-EDGE MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; sid:2003530; rev:2;) Added 2008-01-09 15:15:19 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"BLEEDING-EDGE MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; sid:2003530; rev:2;) Added 2008-01-09 15:15:19 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"BLEEDING-EDGE MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; sid:2003530; rev:2;) Added 2008-01-08 20:25:19 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"BLEEDING-EDGE MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2003530; sid:2003530; rev:2;) Added 2008-01-08 20:25:19 UTC
alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"BLEEDING-EDGE MALWARE Suspicious Mozilla User-Agent Separator - likely Fake (Mozilla/4.0+(compatible +MSIE+)"; flow:to_server,established; content:"User-Agent\: Mozilla/4.0+(compatible\;+MSIE+/"; classtype:trojan-activity; reference:url,doc.bleedingthreats.net/2003530; sid:2003530; rev:1;) Added 2007-04-03 10:56:11 UTC Saw hits in the spyware listening post from this to bestvalue types of urls. Very unique, looks like it replaced spaces with +s somehow. Definitely worth checking out what is generating a UA like this. It's not compliant. -- MattJonkman - 03 Apr 2007
Topic revision: r3 - 2017-12-21 - JonBelanger
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