alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Swrort.A Checkin 2"; flow:to_server,established; http.method; content:"POST"; nocase; http.uri; pcre:"/^\/[A-Za-z0-9-_]{30,}\/$/"; http.user_agent; content:"Mozilla/4.0 (compatible|3b 20|MSIE 6.1|3b 20|Windows NT|29 |"; depth:46; endswith; http.request_body; content:"RECV"; depth:4; fast_pattern; reference:md5,61dacbf1fc20af3afdc432a0dd78eaf3; reference:md5,a3ef217825ce310c41e6edaee2db5eb9; reference:url,www.microsoft.com/security/portal/threat/encyclopedia/entry.aspx?Name=Trojan%3AWin32/Swrort.A; classtype:command-and-control; sid:2019841; rev:5; metadata:created_at 2014_12_03, malware_family Win32_Swrort_A, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_15;)