alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/GandCrab Ransomware CnC? Activity M2"; flow:established,to_server; content:"POST"; http_method; pcre:"/^\/[a-z]{3,20}(?:\?[a-z]{3,20}=[a-z]{0,10}&[a-z]{3,20}=[a-z]{0,10})?$/U"; pcre:"/\.(?:bit|coin|sex|com|gandcrab\d*)$/W";content:"Mozilla/5.0 (Windows NT 6.1|3b 20|WOW64"; http_user_agent; pcre:"/^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/Psi"; http_content_len; byte_test:0,>,4000,0,string,dec; http_header_names; content:"|0d 0a|Host|0d 0a|Content-Type|0d 0a|User-Agent|0d 0a|Content-Length|0d 0a|Cache-Control|0d 0a 0d 0a|"; depth:67; fast_pattern; content:!"Accept"; content:!"Referer"; metadata: former_category TROJAN; reference:md5,8b7d3093c477b2e99effde5065affbd5; classtype:trojan-activity; sid:2025455; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2018_03_06, performance_impact Moderate, updated_at 2018_04_10;)

Added 2018-05-08 17:15:28 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/GandCrab Ransomware CnC? Activity M2"; flow:established,to_server; content:"POST"; http_method; pcre:"/^\/[a-z]{3,20}(?:\?[a-z]{3,20}=[a-z]{0,10}&[a-z]{3,20}=[a-z]{0,10})?$/U"; pcre:"/\.(?:bit|coin|sex|com|gandcrab\d*)$/W";content:"Mozilla/5.0 (Windows NT 6.1|3b 20|WOW64) AppleWebKit?/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36"; http_user_agent; pcre:"/^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/Psi"; http_content_len; byte_test:0,>,4000,0,string,dec; http_header_names; content:"|0d 0a|Host|0d 0a|Content-Type|0d 0a|User-Agent|0d 0a|Content-Length|0d 0a|Cache-Control|0d 0a 0d 0a|"; depth:67; fast_pattern; content:!"Accept"; content:!"Referer"; metadata: former_category TROJAN; reference:md5,8b7d3093c477b2e99effde5065affbd5; classtype:trojan-activity; sid:2025455; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2018_03_06, performance_impact Moderate, updated_at 2018_04_10;)

Added 2018-04-10 17:13:27 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Win32/GandCrab Ransomware CnC? Activity M2"; flow:established,to_server; content:"POST"; http_method; pcre:"/^\/[a-z]{3,20}(?:\?[a-z]{3,20}=[a-z]{0,10}&[a-z]{3,20}=[a-z]{0,10})?$/U"; pcre:"/\.(?:bit|coin|sex|com)$/W";content:"Mozilla/5.0 (Windows NT 6.1|3b 20|WOW64) AppleWebKit?/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36"; http_user_agent; pcre:"/^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/Psi"; http_content_len; byte_test:0,>,4000,0,string,dec; http_header_names; content:"|0d 0a|Host|0d 0a|Content-Type|0d 0a|User-Agent|0d 0a|Content-Length|0d 0a|Cache-Control|0d 0a 0d 0a|"; depth:67; fast_pattern; content:!"Accept"; content:!"Referer"; metadata: former_category TROJAN; reference:md5,8b7d3093c477b2e99effde5065affbd5; classtype:trojan-activity; sid:2025455; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2018_03_06, performance_impact Moderate, updated_at 2018_04_02;)

Added 2018-04-03 16:44:25 UTC


Topic revision: r1 - 2018-05-08 - TWikiGuest
 
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