alert http1 $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE APT_NGO_wuaclt"; flow:established,to_server; http.uri; content:"/pics/"; content:".asp?id="; distance:0; http.user_agent; content:"Mozilla/4.0|20 28|compatible|3b 20|MSIE 6.0|3b 20|Windows NT 5.1|3b 20|SP Q"; startswith; http.header_names; content:"|0d 0a|Cookies|0d 0a|"; fast_pattern; reference:url,labs.alienvault.com; classtype:targeted-activity; sid:2016573; rev:8; metadata:created_at 2013_03_14, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_14;)