alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Nitro Stealer Exfil Activity (Response)"; flow:established,to_client; http.stat_code; content:"200"; file.data; content:"is_bot|22 3a|"; content:"|2c 22|username|22 3a 22|nitronotification_bot|22|"; fast_pattern; reference:url,app.any.run/tasks/ab993f27-958c-4ab4-8da4-0bcd7fe35fcd/; reference:url,twitter.com/James_inthe_box/status/1378044484089376768; reference:md5,95b98ecb440a23daefc5c12d0edfa048; classtype:trojan-activity; sid:2032418; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_04_02, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_04_02;)