alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE TURLA NETFLASH CnC"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/2018/.config/adobe"; bsize:19; fast_pattern; http.header_names; content:"|0d 0a|Host|0d 0a|Connection|0d 0a 0d 0a|"; content:!"User-Agent"; content:!"Referer"; reference:md5,2b35c299c96d17a1d4b09092b09bf692; reference:url,www.welivesecurity.com/2020/03/12/tracking-turla-new-backdoor-armenian-watering-holes/; reference:url,twitter.com/DrunkBinary/status/1267453886912176130; classtype:command-and-control; sid:2030236; rev:1; metadata:attack_target Client_Endpoint, created_at 2020_06_01, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_06_01;)