alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Py/MechaFlounder CnC? Checkin"; flow:established,to_server; content:"GET"; http_method; content:!"|2f|"; http_uri; depth:1; content:"--"; http_uri; content:"|5c|"; http_uri; content:"-service.html"; http_uri; fast_pattern; isdataat:!1,relative; http_header_names; content:!"Referer"; content:!"User-Agent"; metadata: former_category TROJAN; reference:url,unit42.paloaltonetworks.com/new-python-based-payload-mechaflounder-used-by-chafer/; classtype:trojan-activity; sid:2027047; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Python, attack_target Client_and_Server, deployment Perimeter, tag APT, tag Chafer, tag Python, signature_severity Major, created_at 2019_03_05, malware_family MechaFlounder?, performance_impact Low, updated_at 2019_03_05;)

Added 2019-03-06 20:22:39 UTC