alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Bebloh connectivity check"; flow:established,to_server; urilen:1; http.method; content:"GET"; http.header; content:"Host|3a 20|"; depth:6; content:"Content-Length|3a 20|0|0d 0a|"; distance:0; content:"|3a 20|no-cache"; distance:0; http.header_names; content:!"|0d 0a|User-Agent"; content:!"|0d 0a|Accept"; reference:md5,ccb463b2dadaf362a03c8bbf34dc247e; classtype:trojan-activity; sid:2014778; rev:6; metadata:created_at 2012_05_18, performance_impact Significant, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_08;)