alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon"; flow:to_server,established; content:"GET"; http_method; content:".asp?"; http_uri; fast_pattern; content:" MSIE "; http_user_agent; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\.asp\?(?:[A-Za-z0-9+*]{4})*(?:[A-Za-z0-9+*]{2}==|[A-Za-z0-9+*]{3}=|[A-Za-z0-9+*]{4})$/U"; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,a69ac85c7e723ae37377516d7054fa0b; classtype:trojan-activity; sid:2021118; rev:4; metadata:attack_target Client_Endpoint, created_at 2015_05_20, deployment Perimeter, former_category MALWARE, signature_severity Major, tag c2, updated_at 2020_10_01, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)

Added 2021-06-18 18:19:25 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon"; flow:to_server,established; content:"GET"; http_method; content:".asp?"; http_uri; fast_pattern; content:" MSIE "; http_user_agent; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\.asp\?(?:[A-Za-z0-9+*]{4})*(?:[A-Za-z0-9+*]{2}==|[A-Za-z0-9+*]{3}=|[A-Za-z0-9+*]{4})$/U"; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,a69ac85c7e723ae37377516d7054fa0b; classtype:trojan-activity; sid:2021118; rev:4; metadata:created_at 2015_05_20, former_category MALWARE, updated_at 2020_10_01;)

Added 2020-10-01 18:35:24 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon"; flow:to_server,established; content:"GET"; http_method; content:".asp?"; http_uri; fast_pattern; content:" MSIE "; http_user_agent; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\.asp\?(?:[A-Za-z0-9+*]{4})*(?:[A-Za-z0-9+*]{2}==|[A-Za-z0-9+*]{3}=|[A-Za-z0-9+*]{4})$/U"; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,a69ac85c7e723ae37377516d7054fa0b; classtype:trojan-activity; sid:2021118; rev:4; metadata:created_at 2015_05_20, former_category MALWARE, updated_at 2019_10_07;)

Added 2020-08-05 19:11:14 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon"; flow:to_server,established; content:"GET"; http_method; content:".asp?"; http_uri; fast_pattern; content:" MSIE "; http_user_agent; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\.asp\?(?:[A-Za-z0-9+*]{4})*(?:[A-Za-z0-9+*]{2}==|[A-Za-z0-9+*]{3}=|[A-Za-z0-9+*]{4})$/U"; metadata: former_category MALWARE; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,a69ac85c7e723ae37377516d7054fa0b; classtype:trojan-activity; sid:2021118; rev:4; metadata:created_at 2015_05_20, updated_at 2019_10_07;)

Added 2020-03-16 18:59:20 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon"; flow:to_server,established; content:"GET"; http_method; content:".asp?"; http_uri; fast_pattern; content:" MSIE "; http_user_agent; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\.asp\?(?:[A-Za-z0-9+*]{4})*(?:[A-Za-z0-9+*]{2}==|[A-Za-z0-9+*]{3}=|[A-Za-z0-9+*]{4})$/U"; metadata: former_category MALWARE; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,e09c8cd6ad3b99f46e083916c5371b6e2acc050d; classtype:trojan-activity; sid:2021118; rev:4; metadata:created_at 2015_05_20, updated_at 2019_10_07;)

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


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon"; flow:to_server,established; content:"GET"; http_method; content:".asp?"; http_uri; fast_pattern:only; content:" MSIE "; http_user_agent; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\.asp\?(?:[A-Za-z0-9+*]{4})*(?:[A-Za-z0-9+*]{2}==|[A-Za-z0-9+*]{3}=|[A-Za-z0-9+*]{4})$/U"; metadata: former_category MALWARE; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,e09c8cd6ad3b99f46e083916c5371b6e2acc050d; classtype:trojan-activity; sid:2021118; rev:3; metadata:created_at 2015_05_20, updated_at 2015_05_20;)

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


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon"; flow:to_server,established; content:"GET"; http_method; content:".asp?"; http_uri; fast_pattern:only; content:" MSIE "; http_user_agent; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\.asp\?(?:[A-Za-z0-9+*]{4})*(?:[A-Za-z0-9+*]{2}==|[A-Za-z0-9+*]{3}=|[A-Za-z0-9+*]{4})$/U"; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,e09c8cd6ad3b99f46e083916c5371b6e2acc050d; classtype:trojan-activity; sid:2021118; rev:3; 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 -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon"; flow:to_server,established; content:"GET"; http_method; content:".asp?"; http_uri; fast_pattern:only; content:" MSIE "; http_user_agent; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\.asp\?(?:[A-Za-z0-9+*]{4})*(?:[A-Za-z0-9+*]{2}==|[A-Za-z0-9+*]{3}=|[A-Za-z0-9+*]{4})$/U"; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,e09c8cd6ad3b99f46e083916c5371b6e2acc050d; classtype:trojan-activity; sid:2021118; rev:3; metadata:created_at 2015_05_20, updated_at 2015_05_20;)

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


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN SPEAR CnC? Beacon"; flow:to_server,established; content:"GET"; http_method; content:".asp?"; http_uri; fast_pattern:only; content:" MSIE "; http_user_agent; content:!"Accept"; http_header; content:!"Referer|3a|"; http_header; pcre:"/\.asp\?(?:[A-Za-z0-9+*]{4})*(?:[A-Za-z0-9+*]{2}==|[A-Za-z0-9+*]{3}=|[A-Za-z0-9+*]{4})$/U"; reference:url,blog.cylance.com/spear-a-threat-actor-resurfaces; reference:md5,e09c8cd6ad3b99f46e083916c5371b6e2acc050d; classtype:trojan-activity; sid:2021118; rev:3;)

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


Topic revision: r1 - 2021-06-18 - TWikiGuest
 
This site is powered by the TWiki collaboration platform Powered by Perl This site is powered by the TWiki collaboration platformCopyright © Emerging Threats