alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Python.Ragua Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/WebCam/Cam.txt"; nocase; fast_pattern; http.user_agent; content:"Python-urllib/"; depth:14; nocase; http.header_names; content:!"Accept"; content:!"Connection|0d 0a|"; content:!"Referer|0d 0a|"; reference:url,securelist.com/blog/research/66108/el-machete/; reference:md5,a8602b4c35f426107c9667d804470745; classtype:command-and-control; sid:2018968; rev:5; metadata:created_at 2014_08_20, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_25;)