alert http1 $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Possible Satan Cryptor GeoIP Lookup"; flow:established,to_server; http.start; content:"GET /json/ HTTP/1.1|0d 0a|Host|3a 20|extreme-ip-lookup.com|0d 0a|User-Agent|3a 20|Go-http-client/1.1|0d 0a|Accept-Encoding|3a 20|gzip|0d 0a 0d 0a|"; startswith; isdataat:!1,relative; reference:md5,057aad993a3ef50f6b3ca2db37cb928a; classtype:trojan-activity; sid:2029399; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_02_07, deployment Perimeter, malware_family Satan_Cryptor, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2024_04_14;)