alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/Ursnif Checkin"; flow:established,to_server; content:"POST"; http_method; content:"|0d 0a|Content-Length|3a 20|2|0d 0a|Connection|3a 20|"; fast_pattern; http_header; content:"no-cache|0d 0a 0d 0a 0d 0a|"; isdataat:!1,relative; pcre:"/^(?:\/\w{3,12}){2,4}\?[a-z]{3,12}=(?:[A-Za-z0-9+/\x20]{4})*(?:[A-Za-z0-9+/\x20]{2}==|[A-Za-z0-9+/\x20]{3}=|[A-Za-z0-9+/\x20]{4})$/U"; http_header_names; content:!"Referer|0d 0a|"; reference:md5,dfeaae9cb1bc24ac467411955e48483b; reference:url,csis.dk/en/csis/news/4472/; classtype:trojan-activity; sid:2019377; rev:6; metadata:created_at 2014_10_09, former_category MALWARE, updated_at 2020_11_05;)

Added 2020-11-05 18:35:55 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/Ursnif Checkin"; flow:established,to_server; content:"POST"; http_method; content:"|0d 0a|Content-Length|3a 20|2|0d 0a|Connection|3a 20|"; fast_pattern; http_header; content:"no-cache|0d 0a 0d 0a 0d 0a|"; isdataat:!1,relative; pcre:"/^(?:\/\w{3,12}){2,4}\?[a-z]{3,12}=(?:[A-Za-z0-9+/\x20]{4})*(?:[A-Za-z0-9+/\x20]{2}==|[A-Za-z0-9+/\x20]{3}=|[A-Za-z0-9+/\x20]{4})$/U"; http_header_names; content:!"Referer|0d 0a|"; reference:md5,dfeaae9cb1bc24ac467411955e48483b; reference:url,csis.dk/en/csis/news/4472/; classtype:trojan-activity; sid:2019377; rev:6; metadata:created_at 2014_10_09, former_category MALWARE, updated_at 2020_03_06;)

Added 2020-08-05 19:10:19 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/Ursnif Checkin"; flow:established,to_server; content:"POST"; http_method; content:"|0d 0a|Content-Length|3a 20|2|0d 0a|Connection|3a 20|"; fast_pattern; http_header; content:"no-cache|0d 0a 0d 0a 0d 0a|"; isdataat:!1,relative; pcre:"/^(?:\/\w{3,12}){2,4}\?[a-z]{3,12}=(?:[A-Za-z0-9+/\x20]{4})*(?:[A-Za-z0-9+/\x20]{2}==|[A-Za-z0-9+/\x20]{3}=|[A-Za-z0-9+/\x20]{4})$/U"; http_header_names; content:!"Referer|0d 0a|"; metadata: former_category MALWARE; reference:md5,dfeaae9cb1bc24ac467411955e48483b; reference:url,csis.dk/en/csis/news/4472/; classtype:trojan-activity; sid:2019377; rev:6; metadata:created_at 2014_10_09, updated_at 2020_03_06;)

Added 2020-03-06 18:55:21 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/Ursnif Checkin"; flow:established,to_server; content:"POST"; http_method; content:"|0d 0a|Content-Length|3a 20|2|0d 0a|Connection|3a 20|"; fast_pattern:10,20; http_header; content:!"Referer|3a|"; http_header; content:"no-cache|0d 0a 0d 0a 0d 0a|"; isdataat:!1,relative; pcre:"/^(?:\/\w{3,12}){2,4}\?[a-z]{3,12}=(?:[A-Za-z0-9+/\x20]{4})*(?:[A-Za-z0-9+/\x20]{2}==|[A-Za-z0-9+/\x20]{3}=|[A-Za-z0-9+/\x20]{4})$/U"; metadata: former_category MALWARE; reference:md5,dfeaae9cb1bc24ac467411955e48483b; reference:url,csis.dk/en/csis/news/4472/; classtype:trojan-activity; sid:2019377; rev:5; metadata:created_at 2014_10_09, updated_at 2019_09_28;)

Added 2019-10-01 08:28:10 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/Ursnif Checkin"; flow:established,to_server; content:"POST"; http_method; content:"|0d 0a|Content-Length|3a 20|2|0d 0a|Connection|3a 20|"; fast_pattern:10,20; http_header; content:!"Referer|3a|"; http_header; content:"no-cache|0d 0a 0d 0a 0d 0a|"; isdataat:!1,relative; pcre:"/^(?:\/\w{3,12}){2,4}\?[a-z]{3,12}=(?:[A-Za-z0-9+/\x20]{4})*(?:[A-Za-z0-9+/\x20]{2}==|[A-Za-z0-9+/\x20]{3}=|[A-Za-z0-9+/\x20]{4})$/U"; metadata: former_category MALWARE; reference:md5,dfeaae9cb1bc24ac467411955e48483b; reference:url,csis.dk/en/csis/news/4472/; classtype:trojan-activity; sid:2019377; rev:5; metadata:created_at 2014_10_09, updated_at 2019_09_28;)

Added 2019-10-01 04:22:34 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/Ursnif Checkin"; flow:established,to_server; content:"POST"; http_method; content:"|0d 0a|Content-Length|3a 20|2|0d 0a|Connection|3a 20|"; fast_pattern:10,20; http_header; content:!"Referer|3a|"; http_header; content:"no-cache|0d 0a 0d 0a 0d 0a|"; isdataat:!1,relative; pcre:"/^(?:\/\w{3,12}){2,4}\?[a-z]{3,12}=(?:[A-Za-z0-9+/\x20]{4})*(?:[A-Za-z0-9+/\x20]{2}==|[A-Za-z0-9+/\x20]{3}=|[A-Za-z0-9+/\x20]{4})$/U"; metadata: former_category MALWARE; reference:md5,dfeaae9cb1bc24ac467411955e48483b; reference:url,csis.dk/en/csis/news/4472/; classtype:trojan-activity; sid:2019377; rev:5; metadata:created_at 2014_10_09, updated_at 2014_10_09;)

Added 2019-09-26 19:57:45 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/Ursnif Checkin"; flow:established,to_server; content:"POST"; http_method; content:"|0d 0a|Content-Length|3a 20|2|0d 0a|Connection|3a 20|"; fast_pattern:10,20; http_header; content:!"Referer|3a|"; http_header; content:"no-cache|0d 0a 0d 0a 0d 0a|"; isdataat:!1,relative; pcre:"/^(?:\/\w{3,12}){2,4}\?[a-z]{3,12}=(?:[A-Za-z0-9+/\x20]{4})*(?:[A-Za-z0-9+/\x20]{2}==|[A-Za-z0-9+/\x20]{3}=|[A-Za-z0-9+/\x20]{4})$/U"; reference:md5,dfeaae9cb1bc24ac467411955e48483b; reference:url,csis.dk/en/csis/news/4472/; classtype:trojan-activity; sid:2019377; rev:5; metadata:created_at 2014_10_09, updated_at 2014_10_09;)

Added 2018-09-13 19:49:29 UTC


Added 2018-09-13 17:59:06 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/Ursnif Checkin"; flow:established,to_server; content:"POST"; http_method; content:"|0d 0a|Content-Length|3a 20|2|0d 0a|Connection|3a 20|"; fast_pattern:10,20; http_header; content:!"Referer|3a|"; http_header; content:"no-cache|0d 0a 0d 0a 0d 0a|"; isdataat:!1,relative; pcre:"/^(?:\/\w{3,12}){2,4}\?[a-z]{3,12}=(?:[A-Za-z0-9+/\x20]{4})*(?:[A-Za-z0-9+/\x20]{2}==|[A-Za-z0-9+/\x20]{3}=|[A-Za-z0-9+/\x20]{4})$/U"; reference:md5,dfeaae9cb1bc24ac467411955e48483b; reference:url,csis.dk/en/csis/news/4472/; classtype:trojan-activity; sid:2019377; rev:5; metadata:created_at 2014_10_09, updated_at 2014_10_09;)

Added 2017-08-07 21:13:37 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/Ursnif Checkin"; flow:established,to_server; content:"POST"; http_method; content:"|0d 0a|Content-Length|3a 20|2|0d 0a|Connection|3a 20|"; fast_pattern:10,20; http_header; content:!"Referer|3a|"; http_header; content:"no-cache|0d 0a 0d 0a 0d 0a|"; isdataat:!1,relative; pcre:"/^(?:\/\w{3,12}){2,4}\?[a-z]{3,12}=(?:[A-Za-z0-9+/\x20]{4})*(?:[A-Za-z0-9+/\x20]{2}==|[A-Za-z0-9+/\x20]{3}=|[A-Za-z0-9+/\x20]{4})$/U"; reference:md5,dfeaae9cb1bc24ac467411955e48483b; reference:url,csis.dk/en/csis/news/4472/; classtype:trojan-activity; sid:2019377; rev:5;)

Added 2015-04-03 18:58:47 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/Ursnif Checkin"; flow:established,to_server; content:"POST"; http_method; content:"|0d 0a|Content-Length|3a 20|2|0d 0a|Connection|3a 20|"; fast_pattern:10,20; http_header; content:!"Referer|3a|"; http_header; content:"no-cache|0d 0a 0d 0a 0d 0a|"; isdataat:!1,relative; pcre:"/^(?:\/\w{3,12}){4}\?[a-z]{3,12}=(?:[A-Za-z0-9+/\x20]{4})*(?:[A-Za-z0-9+/\x20]{2}==|[A-Za-z0-9+/\x20]{3}=|[A-Za-z0-9+/\x20]{4})$/U"; reference:md5,dfeaae9cb1bc24ac467411955e48483b; reference:url,csis.dk/en/csis/news/4472/; classtype:trojan-activity; sid:2019377; rev:3;)

Added 2015-03-13 19:35:10 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/Ursnif Checkin"; flow:established,to_server; content:"POST"; http_method; content:"/xxx/"; http_uri; fast_pattern:only; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\/xxx\/[a-z]+\?[a-z]+=(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/U"; reference:md5,dfeaae9cb1bc24ac467411955e48483b; reference:url,csis.dk/en/csis/news/4472/; classtype:trojan-activity; sid:2019377; rev:2;)

Added 2014-10-09 18:14:31 UTC


Topic revision: r1 - 2020-11-05 - TWikiGuest
 
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