alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon 2"; flow:to_server,established; content:"GET"; http_method; content:"?wd="; http_uri; fast_pattern; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\?wd=(?:[A-Za-z0-9_-]{4})*(?:[A-Za-z0-9_-]{2}==|[A-Za-z0-9_-]{3}=|[A-Za-z0-9_-]{4})$/U"; metadata: former_category MALWARE; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,e09c8cd6ad3b99f46e083916c5371b6e2acc050d; classtype:trojan-activity; sid:2021119; rev:3; metadata:created_at 2015_05_20, updated_at 2019_10_07;)

Added 2019-10-08 19:34:27 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon 2"; flow:to_server,established; content:"GET"; http_method; content:"?wd="; http_uri; fast_pattern:only; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\?wd=(?:[A-Za-z0-9_-]{4})*(?:[A-Za-z0-9_-]{2}==|[A-Za-z0-9_-]{3}=|[A-Za-z0-9_-]{4})$/U"; metadata: former_category MALWARE; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,e09c8cd6ad3b99f46e083916c5371b6e2acc050d; classtype:trojan-activity; sid:2021119; rev:2; metadata:created_at 2015_05_20, updated_at 2015_05_20;)

Added 2019-09-19 19:26:22 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon 2"; flow:to_server,established; content:"GET"; http_method; content:"?wd="; http_uri; fast_pattern:only; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\?wd=(?:[A-Za-z0-9_-]{4})*(?:[A-Za-z0-9_-]{2}==|[A-Za-z0-9_-]{3}=|[A-Za-z0-9_-]{4})$/U"; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,e09c8cd6ad3b99f46e083916c5371b6e2acc050d; classtype:trojan-activity; sid:2021119; rev:2; metadata:created_at 2015_05_20, updated_at 2015_05_20;)

Added 2018-09-13 19:51:13 UTC


Added 2018-09-13 18:00:05 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon 2"; flow:to_server,established; content:"GET"; http_method; content:"?wd="; http_uri; fast_pattern:only; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\?wd=(?:[A-Za-z0-9_-]{4})*(?:[A-Za-z0-9_-]{2}==|[A-Za-z0-9_-]{3}=|[A-Za-z0-9_-]{4})$/U"; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,e09c8cd6ad3b99f46e083916c5371b6e2acc050d; classtype:trojan-activity; sid:2021119; rev:2; metadata:created_at 2015_05_20, updated_at 2015_05_20;)

Added 2017-08-07 21:15:46 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon 2"; flow:to_server,established; content:"GET"; http_method; content:"?wd="; http_uri; fast_pattern:only; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\?wd=(?:[A-Za-z0-9_-]{4})*(?:[A-Za-z0-9_-]{2}==|[A-Za-z0-9_-]{3}=|[A-Za-z0-9_-]{4})$/U"; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,e09c8cd6ad3b99f46e083916c5371b6e2acc050d; classtype:trojan-activity; sid:2021119; rev:2;)

Added 2015-05-20 17:52:44 UTC


Topic revision: r1 - 2019-10-08 - TWikiGuest
 
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